JP2015133181A - Method of manufacturing stacked power storage device and cutting and stacking device of electrode plate - Google Patents
Method of manufacturing stacked power storage device and cutting and stacking device of electrode plate Download PDFInfo
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- 238000005520 cutting process Methods 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000003860 storage Methods 0.000 title claims description 18
- 239000011149 active material Substances 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000004080 punching Methods 0.000 description 10
- 239000011888 foil Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
Description
本発明は、積層型蓄電装置の製造方法及び電極板の切出し積載装置に係り、詳しくは電極板として帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用する積層型蓄電装置の製造方法及び帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を積載する電極板の切出し積載装置に関する。 The present invention relates to a manufacturing method of a stacked power storage device and an electrode plate cutting and stacking device, and more particularly, to a stacked power storage device using a plurality of electrode plates cut out from a strip-shaped electrode sheet per cycle as an electrode plate. The present invention relates to a manufacturing method and an electrode plate cutting and stacking apparatus for stacking a plurality of electrode plates cut out from a strip-shaped electrode sheet per cycle.
二次電池やキャパシタのような蓄電装置は再充電が可能であり、繰り返し使用することができるため電源として広く利用されている。蓄電装置として、金属箔に活物質を含有するスラリー状の活物質合剤が塗布されて形成された活物質層を有する正極及び負極が、間にセパレータが存在する状態で層をなすように積層された積層型電極組立体を備えた積層型二次電池がある。 Power storage devices such as secondary batteries and capacitors are widely used as power sources because they can be recharged and can be used repeatedly. As a power storage device, a positive electrode and a negative electrode having an active material layer formed by applying a slurry-like active material mixture containing an active material to a metal foil are laminated so that a separator is present between them. There is a laminated secondary battery including the laminated electrode assembly.
正極及び負極の製造工程、即ち電極板の製造工程では、活物質合剤を帯状の金属箔上に所定の幅で塗布した後、乾燥工程において溶剤の大半を除去し、活物質層の密度を高めるためにロールプレスを行って活物質層が形成された帯状の電極シートが形成される。さらに、必要に応じ活物質層内に残った溶剤を除去するために乾燥工程を行った後、帯状の電極シートから電極板が切り出される。 In the manufacturing process of the positive electrode and the negative electrode, that is, the manufacturing process of the electrode plate, after applying the active material mixture with a predetermined width on the strip-shaped metal foil, most of the solvent is removed in the drying process, and the density of the active material layer is increased. In order to enhance, a belt-shaped electrode sheet on which an active material layer is formed by performing a roll press is formed. Furthermore, after performing a drying process in order to remove the solvent remaining in the active material layer as necessary, the electrode plate is cut out from the belt-shaped electrode sheet.
ところが、帯状の金属箔に活物質合剤を塗布して活物質層を形成した電極シートを製造した場合、電極シートの活物質層を均一に形成することは難しい。その結果、各電極板の活物質量がばらつき、所定枚数の正極及び負極を単純に積層して電極組立体を形成すると二次電池の容量のバラツキが大きくなる。 However, when an electrode sheet in which an active material mixture is applied to a band-shaped metal foil to form an active material layer is produced, it is difficult to uniformly form the active material layer of the electrode sheet. As a result, the amount of active material on each electrode plate varies, and when a predetermined number of positive and negative electrodes are simply laminated to form an electrode assembly, the capacity of the secondary battery varies greatly.
従来、電池容量のバラツキ低減を図るため、正極及び負極が複数枚の電極板の組み合わせにより構成され、正極及び負極におけるそれぞれの組み合わせは主材料である活物質又は準活物質の合計重量がほぼ一定値となるように構成され、複数枚で構成される電極における各電極板が間隔を開けてシリーズに捲回されている電池用電極群が提案されている。(特許文献1参照)。 Conventionally, in order to reduce variation in battery capacity, the positive electrode and the negative electrode are configured by a combination of a plurality of electrode plates, and the total weight of the active material or quasi-active material as the main material is almost constant in each combination of the positive electrode and the negative electrode There has been proposed a battery electrode group that is configured to have a value and each electrode plate of a plurality of electrodes is wound in a series with a space therebetween. (See Patent Document 1).
なお、電極板の製造方法としては、幅広の金属箔を使用して複数枚分の活物質層を有する帯状の電極シートを形成した後、その帯状の電極シートからその幅方向において複数枚ずつ電極板を切り出す方法もある。活物質合剤を帯状の金属箔に塗布して活物質層を形成した場合、活物質の目付けは帯状の電極シートの幅方向において異なり、図13に示すように、幅方向の両端部及び中央付近の目付けが大きくなる。なお、図13は、帯状の電極シートの長手方向の異なる4箇所における、電極シートの幅方向の一直線上の両端部及び中間部の目付けのバラツキを示す。 In addition, as a manufacturing method of an electrode plate, after forming a strip-shaped electrode sheet having a plurality of active material layers using a wide metal foil, a plurality of electrodes are formed in the width direction from the strip-shaped electrode sheet. There is also a method of cutting a board. When the active material mixture is applied to the strip-shaped metal foil to form the active material layer, the basis weight of the active material is different in the width direction of the strip-shaped electrode sheet, and as shown in FIG. The weight of the neighborhood increases. In addition, FIG. 13 shows the variation in the fabric weight of the both ends and intermediate part on the straight line of the width direction of an electrode sheet in four places where the longitudinal direction of a strip | belt-shaped electrode sheet differs.
幅広の金属箔を使用して幅方向に複数枚分の活物質層を有する帯状の電極シートを形成した後、その帯状の電極シートからその幅方向において複数枚ずつ電極板を切り出して電極板を形成した場合、各電極板上の活物質の目付けのバラツキが大きくなる。そのため、正極用の電極板及び負極用の電極板をセパレータを介して所定枚数ずつ積層して構成した積層型電極組立体の活物質の目付けのバラツキが大きくなり、電池容量のバラツキが大きくなる。積層型電極組立体の活物質の目付けのバラツキを抑制するため、特許文献1のように電極組立体を構成する各電極板を秤量して、電極組立体を構成する複数枚の電極板の合計重量が小さくなるように電極板を組み合わせる方法を採用すると、電極板を1枚ずつ秤量する工程、秤量した電極板をストックする工程、秤量結果を考慮して電極板を組み合わせる工程が必要になる。そのため、生産速度が低下するだけでなく、電極板をストックするスペースの確保や設備費用が増大するという問題がある。 After forming a band-shaped electrode sheet having a plurality of active material layers in the width direction using a wide metal foil, the electrode plate is cut out from the band-shaped electrode sheet by a plurality of sheets in the width direction. When formed, the variation in the weight of the active material on each electrode plate increases. For this reason, the variation in the basis weight of the active material of the laminated electrode assembly formed by laminating a predetermined number of positive electrode plates and negative electrode plates with a separator interposed therebetween increases the variation in battery capacity. In order to suppress variation in the weight of the active material of the stacked electrode assembly, each electrode plate constituting the electrode assembly is weighed as in Patent Document 1, and a total of a plurality of electrode plates constituting the electrode assembly is measured. If the method of combining the electrode plates so as to reduce the weight is adopted, a step of weighing the electrode plates one by one, a step of stocking the weighed electrode plates, and a step of combining the electrode plates in consideration of the weighing result are necessary. For this reason, there is a problem that not only the production speed decreases, but also the space for stocking the electrode plates and the equipment cost increase.
本発明は、前記の問題に鑑みてなされたものであって、その目的は、帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる積層型蓄電装置の製造方法及び電極板の切出し積載装置を提供することにある。 The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a laminated electrode assembly configured by using a plurality of electrode plates cut out from a strip-shaped electrode sheet per cycle. An object of the present invention is to provide a manufacturing method of a stacked type power storage device and a cut-out stacking device for an electrode plate that can suppress the variation in the weight of the active material without reducing the production rate.
上記課題を解決する積層型蓄電装置の製造方法は、活物質層が塗布された帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用する積層型蓄電装置の製造方法である。そして、前記電極シートから1サイクルあたりに切り出される前記電極板の数と同じ数以上の電極板積載部材を設け、前記電極シートから切り出した複数枚の前記電極板を1枚ずつ各前記電極板積載部材上に積載し、所定周期で2つ以上の前記電極板積載部材の位置を変更する電極板切出し積載工程を備える。ここで、「1サイクル」とは、電極板切出し積載工程で繰り返し行われる一連の作業、即ち活物質層が塗布された帯状の電極シートから予め設定された複数枚の電極板を切り出す切り出し作業と、その切り出し作業で切り出された電極板を1枚ずつ各電極板積載部材上に積載する積載作業とが1回完了する迄を意味する。 A method for manufacturing a stacked type power storage device that solves the above problem is a method for manufacturing a stacked type power storage device that uses a plurality of electrode plates cut out per cycle from a strip-shaped electrode sheet coated with an active material layer. And as many electrode plate stacking members as the number of the electrode plates cut out per cycle from the electrode sheet are provided, and a plurality of the electrode plates cut out from the electrode sheet one by one There is provided an electrode plate cutting and stacking step of stacking on a member and changing the positions of two or more electrode plate stacking members at a predetermined cycle. Here, “one cycle” means a series of operations repeatedly performed in the electrode plate cutting and stacking step, that is, a cutting operation of cutting a plurality of preset electrode plates from a strip-shaped electrode sheet coated with an active material layer. This means that the stacking operation of stacking the electrode plates cut out by the cutting operation on each electrode plate stacking member one by one is completed once.
この構成によれば、積層型蓄電装置は、活物質層が塗布された帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用する。そして、電極シートから1サイクルあたりに切り出される各電極板は、電極板の数と同じ数以上設けられた電極板積載部材上に1枚ずつ積載される。2つ以上の電極板積載部材は、電極板を受け取る(積載される)位置が所定周期で変更される。その結果、例えば、電極シート上の活物質の目付けに電極シートの幅方向においてバラツキがあっても、各電極板積載部材上には、幅方向における異なる位置から切り出された電極が混合された状態で積層され、積載された電極板の合計重量は均等になる。したがって、帯状の電極シートから1サイクルあたり複数枚ずつ切り出した電極板を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる。 According to this configuration, the stacked power storage device uses an electrode plate that is cut out from a strip-shaped electrode sheet coated with an active material layer, one by one per cycle. Each electrode plate cut out from the electrode sheet per cycle is stacked one by one on an electrode plate stacking member provided in the same number or more as the number of electrode plates. The position where the two or more electrode plate stacking members receive (stack) the electrode plates is changed at a predetermined cycle. As a result, for example, even if the basis weight of the active material on the electrode sheet varies in the width direction of the electrode sheet, the electrodes cut from different positions in the width direction are mixed on each electrode plate stacking member The total weight of the stacked and loaded electrode plates is equalized. Therefore, variation in the basis weight of the active material of the laminated electrode assembly configured by using a plurality of electrode plates cut out from the belt-shaped electrode sheet per cycle can be suppressed without reducing the production rate. .
前記電極板積載部材は1サイクルあたりに切り出される前記電極板の数より1つ多く設けられ、前記電極板積載部材は前記電極板が積載される受取位置と、前記受取位置の他に設けられた待機スペースとを移動することが好ましい。電極板積載部材は電極板を受け取る位置を所定周期で変更する必要があり、電極板積載部材が移動している間は電極板の電極板積載部材上への積載作業は中断される。電極板積載部材の数が1サイクルあたりに切り出される電極板の数と同じ場合は、各電極板積載部材の位置変更に時間がかかる。しかし、電極板積載部材が1サイクルあたりに切り出される電極板の数より1つ多く設けられ、電極板積載部材は電極板が積載される受取位置と、受取位置の他に設けられた待機スペースとを移動する。そのため、位置変更の際に、次に電極板を受け取る受取位置まで各電極板積載部材が移動する距離を短くでき、簡単な構成で位置変更にかかる時間を短くすることができる。 The electrode plate stacking member is provided one more than the number of the electrode plates cut out per cycle, and the electrode plate stacking member is provided in addition to the receiving position where the electrode plate is stacked and the receiving position. It is preferable to move between the waiting spaces. The electrode plate loading member needs to change the position where the electrode plate is received at a predetermined cycle, and the loading operation of the electrode plate on the electrode plate loading member is interrupted while the electrode plate loading member is moving. When the number of electrode plate stacking members is the same as the number of electrode plates cut out per cycle, it takes time to change the position of each electrode plate stacking member. However, the electrode plate stacking member is provided one more than the number of electrode plates cut out per cycle, and the electrode plate stacking member includes a receiving position where the electrode plate is stacked and a standby space provided in addition to the receiving position. To move. Therefore, when the position is changed, the distance that each electrode plate stacking member moves to the receiving position where the electrode plate is received next can be shortened, and the time required for the position change can be shortened with a simple configuration.
前記電極シートとしてロール状に巻回された電極ロールが使用され、前記電極ロールから繰り出されて前記電極板が切り出されることが好ましい。電極シートとしてロール状ではなく平らなシート状のものを使用した場合、何回か電極板が切り出される毎に新しい電極シートと交換する必要があり、また、電極板が切り出された後の電極シートをその都度処理する必要がある。しかし、電極シートとしてロール状に巻回された電極ロールを使用した場合、そのような手間が簡単になる。 It is preferable that an electrode roll wound in a roll shape is used as the electrode sheet, and the electrode plate is cut out from the electrode roll. When a flat sheet is used instead of a roll as the electrode sheet, it must be replaced with a new electrode sheet each time the electrode plate is cut out several times, and the electrode sheet after the electrode plate is cut out Must be processed each time. However, when an electrode roll wound in a roll shape is used as the electrode sheet, such labor is simplified.
前記電極板切出し積載工程は、各前記電極板積載部材上に積載された前記電極板の合計重量が均等になるように前記電極板積載部材の位置を変更することが好ましい。この構成によれば、電極シートに塗布された活物質層の厚さのバラツキ状態によっては、各電極板積載部材の位置を変更するために各電極板積載部材を移動させる距離を少なくすることができる。例えば、活物質層の厚さのバラツキが電極シートの幅方向において対称で、電極シートから幅方向に偶数枚ずつ電極板を切り出す場合は、活物質層の厚さのバラツキが電極シートの幅方向において非対称の場合に比べて各電極板積載部材の移動量を半分以下にできる。 In the electrode plate cutting and stacking step, it is preferable that the position of the electrode plate stacking member is changed so that the total weight of the electrode plates stacked on each of the electrode plate stacking members becomes equal. According to this configuration, depending on the variation state of the thickness of the active material layer applied to the electrode sheet, it is possible to reduce the distance to move each electrode plate stacking member in order to change the position of each electrode plate stacking member. it can. For example, when the variation in the thickness of the active material layer is symmetrical in the width direction of the electrode sheet and an even number of electrode plates are cut out in the width direction from the electrode sheet, the variation in the thickness of the active material layer is in the width direction of the electrode sheet. The amount of movement of each electrode plate stacking member can be reduced to less than half compared to the case of asymmetrical.
上記課題を解決する電極板の切出し積載装置は、活物質層が塗布された帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を積載する電極板の切出し積載装置である。そして、前記電極シートから1サイクルあたりに複数枚ずつ前記電極板を切り出す切出し装置と、1サイクルあたりに複数枚ずつ切り出される前記電極板の数以上設けられた電極板積載部材と、前記電極シートから1サイクルあたりに切り出された複数枚の前記電極板を、切出し位置毎に対応する受取位置に待機する前記電極板積載部材上に積載する積載装置と、前記電極板積載部材の2つ以上の前記受取位置を所定周期で変更させる電極板積載部材移動装置とを備える。 An electrode plate cutting and stacking apparatus that solves the above problems is an electrode plate cutting and stacking apparatus that loads a plurality of electrode plates cut out per cycle from a strip-shaped electrode sheet coated with an active material layer. Further, a cutting device that cuts out the electrode plates a plurality of times per cycle from the electrode sheet, an electrode plate stacking member provided more than the number of the electrode plates cut out a plurality of times per cycle, and the electrode sheet A stacking device for stacking a plurality of the electrode plates cut out per cycle on the electrode plate stacking member waiting at a receiving position corresponding to each cutting position; and two or more of the electrode plate stacking members An electrode plate stacking member moving device that changes the receiving position at a predetermined cycle.
この構成によれば、切出し装置により電極シートから電極板が切り出され、電極シートから1サイクルあたりに複数枚ずつ切り出された電極板が切出し位置毎に対応する受取位置に待機する電極板積載部材上に積載装置により積載される。また、各電極板積載部材は、電極板積載部材移動装置により、2つ以上の受取位置が所定周期で変更される。したがって、帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる。 According to this configuration, the electrode plate is cut out from the electrode sheet by the cutting device, and a plurality of electrode plates cut out from the electrode sheet per cycle are placed on the electrode plate stacking member waiting at the receiving position corresponding to each cutting position. Is loaded by a loading device. Further, two or more receiving positions of each electrode plate stacking member are changed at a predetermined cycle by the electrode plate stacking member moving device. Therefore, it is possible to suppress the variation in the weight of the active material of the laminated electrode assembly formed by using the electrode plates cut out from the strip-shaped electrode sheet per cycle, without reducing the production rate. it can.
前記電極板積載部材は1サイクルあたりに切り出される前記電極板の数より1つ多く設けられ、前記受取位置を含めて前記電極板積載部材が待機する待機スペースが前記1サイクルあたりに切り出される前記電極板の数より2つ多く設けられていることが好ましい。この構成によれば、電極板積載部材の受取位置を変更する際に、受取位置に配置されていた電極板積載部材のうちの一端側の電極板積載部材を待機スペースへ移動させた後、残りの電極板積載部材を同時に移動させて受取位置の変更を行う。そして、電極板積載部材の他端側に空いた受取位置に、その位置と対向する待機スペース上に待機していた電極板積載部材が移動されて電極板積載部材の位置変更が完了する。したがって、各電極板積載部材が移動する距離を短くでき、簡単な構成で位置変更にかかる時間を短くすることができる。 The electrode plate stacking member is provided one more than the number of the electrode plates cut out per cycle, and the standby space where the electrode plate stacking member waits including the receiving position is cut out per cycle. Two more than the number of plates are preferably provided. According to this configuration, when the receiving position of the electrode plate stacking member is changed, the electrode plate stacking member at one end of the electrode plate stacking members arranged at the receiving position is moved to the standby space, and then the remaining The electrode plate stacking members are simultaneously moved to change the receiving position. Then, the electrode plate stacking member waiting on the standby space facing the position is moved to the receiving position vacated on the other end side of the electrode plate stacking member, and the position change of the electrode plate stacking member is completed. Therefore, the distance that each electrode plate stacking member moves can be shortened, and the time required for the position change can be shortened with a simple configuration.
前記電極シートがロール状に巻回された電極ロールを支持して前記電極シートを間欠的に繰り出す繰出し部を備えていることが好ましい。この構成によれば、電極シートとしてロール状ではなく平らなシート状のものを使用する構成に比べて、電極シートの所定箇所を切出し装置により電極板が切り出される位置へ供給する作業と、電極板が切り出された後の部分を次の切出し作業に支障のない位置まで移動させる作業とを簡単に行うことができる。 It is preferable that the electrode sheet includes a feeding portion that supports an electrode roll wound in a roll shape and intermittently feeds the electrode sheet. According to this configuration, as compared with the configuration in which the electrode sheet is not a roll but a flat sheet, an operation for supplying a predetermined portion of the electrode sheet to a position where the electrode plate is cut out by the cutting device; It is possible to easily perform the operation of moving the portion after the cut out to a position that does not hinder the next cutting operation.
本発明によれば、帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる。 According to the present invention, the variation in the weight of the active material of the laminated electrode assembly formed by using the electrode plates cut out from the strip-shaped electrode sheet for each cycle can be reduced without reducing the production rate. Can be suppressed.
(第1の実施形態)
以下、本発明を具体化した第1の実施形態を図1〜図5にしたがって説明する。
積層型蓄電装置の製造方法は、電極板として活物質層が長手方向に沿って塗布された帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を使用する。そして、帯状の電極シートから1サイクルあたりに複数枚ずつ切り出した電極板を積載する電極板の切出し積載工程に特徴を有し、帯状の電極シートを製造するまでの工程及び積載された電極板を使用して電極組立体を組み立てる以降の工程は公知の工程で実施できるため電極板の切出し積載工程(電極板切出し積載工程)及び電極板の切出し積載装置について説明する。なお、1サイクルとは、電極板切出し積載工程で繰り返し行われる一連の作業、即ち帯状の電極シートから予め設定された複数枚の電極板を切り出す切り出し作業と、その切り出し作業で切り出された電極板を1枚ずつ各電極板積載部材上に積載する積載作業とが1回完了する迄を意味する。
(First embodiment)
A first embodiment of the present invention will be described below with reference to FIGS.
In the method for manufacturing a stacked power storage device, an electrode plate obtained by cutting a plurality of sheets per cycle from a strip-shaped electrode sheet coated with an active material layer along the longitudinal direction is used as an electrode plate. And it has the characteristic in the cut-out stacking process of the electrode plate which stacks the electrode plate cut out from the strip-shaped electrode sheet for every one cycle, The process until a strip-shaped electrode sheet is manufactured, and the stacked electrode plate Since the subsequent processes for assembling the electrode assembly by using can be carried out by known processes, an electrode plate cutting and stacking process (electrode plate cutting and stacking process) and an electrode plate cutting and stacking apparatus will be described. One cycle is a series of operations repeatedly performed in the electrode plate cutting and stacking process, that is, a cutting operation for cutting out a plurality of preset electrode plates from a strip-shaped electrode sheet, and an electrode plate cut out by the cutting operation Means that the stacking operation of stacking the sheets one by one on each electrode plate stacking member is completed once.
図1に示すように、電極板の切出し積載工程で使用される電極板の切出し積載装置は、帯状の電極シート11がロール状に巻回された電極ロール12を支持して電極シート11を間欠的に繰り出す繰出し部13と、電極シート11を巻き取る巻取り部14と、電極シート11をガイドするガイドローラ15とを有する電極シート送り装置16を備えている。電極シート11は、電極ロール12から繰り出された後、両ガイドローラ15の間を水平状態で移動する。 As shown in FIG. 1, the electrode plate cutting and stacking apparatus used in the electrode plate cutting and stacking process supports the electrode roll 12 on which the belt-like electrode sheet 11 is wound in a roll shape, and intermittently contacts the electrode sheet 11. An electrode sheet feeding device 16 having a feeding part 13 for feeding out, a winding part 14 for taking up the electrode sheet 11, and a guide roller 15 for guiding the electrode sheet 11 is provided. After the electrode sheet 11 is fed out from the electrode roll 12, it moves between the guide rollers 15 in a horizontal state.
図2に示すように、電極シート11は、その長手方向に活物質層17が間欠的に、かつ電極シート11の幅方向の両端部を除く状態に所定間隔で形成されている。間欠的に形成された各活物質層17は、積層型の電極組立体の電極板18(図3に図示)を電極シート11の幅方向において複数枚(この実施形態では4枚)切り出し可能な大きさに形成されている。 As shown in FIG. 2, the electrode sheet 11 is formed with the active material layer 17 intermittently in the longitudinal direction and at a predetermined interval in a state excluding both ends in the width direction of the electrode sheet 11. Each of the active material layers 17 formed intermittently can cut out a plurality (four in this embodiment) of electrode plates 18 (shown in FIG. 3) of the stacked electrode assembly in the width direction of the electrode sheet 11. It is formed in size.
図1に示すように、巻取り部14の上方でガイドローラ15の近傍には電極シート11から電極板18を切り出す切出し装置としての打ち抜き装置19が設けられている。打ち抜き装置19は、打ち抜き型19aと支持部19bとを備え、支持部19bで支持された電極シート11から同時に4枚の電極板18を、電極シート11の幅方向に1列に打ち抜く(切り出す)ように構成されている。即ち、この実施形態では、1サイクルあたりに4枚ずつ電極板18が切り出される。 As shown in FIG. 1, a punching device 19 as a cutting device for cutting out the electrode plate 18 from the electrode sheet 11 is provided above the winding portion 14 and in the vicinity of the guide roller 15. The punching device 19 includes a punching die 19a and a support portion 19b, and simultaneously punches (cuts out) four electrode plates 18 from the electrode sheet 11 supported by the support portion 19b in a row in the width direction of the electrode sheet 11. It is configured as follows. That is, in this embodiment, four electrode plates 18 are cut out every four cycles.
図1及び図3に示すように、電極シート送り装置16の一端側近傍には、電極シート11から切り出される1列分の電極板18を同時に取り出して、切出し位置毎に対応する受取位置に待機する電極板積載部材20(図3に図示)上に積載する積載装置21と、電極板積載部材20を間欠的に移動させる電極板積載部材移動装置22とが設けられている。受取位置P1〜P4は電極シート11から切り出される1列分の電極板18の数と同じ数、この実施形態では4箇所設けられている。 As shown in FIG. 1 and FIG. 3, in the vicinity of one end side of the electrode sheet feeding device 16, one row of electrode plates 18 cut out from the electrode sheet 11 is simultaneously taken out, and is waited at a receiving position corresponding to each cutting position. A loading device 21 for loading on the electrode plate loading member 20 (shown in FIG. 3) and an electrode plate loading member moving device 22 for moving the electrode plate loading member 20 intermittently are provided. The receiving positions P <b> 1 to P <b> 4 are provided in the same number as the number of electrode plates 18 for one row cut out from the electrode sheet 11.
電極板積載部材20は、電極シート11から切り出される1列分の電極板18を1枚ずつ積載可能な数以上設けられ、この実施形態では電極シート11から切り出される1列分の電極板18の数である4個より1つ多い5個の電極板積載部材20が設けられている。 The electrode plate stacking member 20 is provided in an amount that can stack one row of electrode plates 18 cut out from the electrode sheet 11 one by one. In this embodiment, the electrode plate stacking member 20 is formed of one row of electrode plates 18 cut out from the electrode sheet 11. Five electrode plate stacking members 20, which is one more than the number of four, are provided.
電極板積載部材移動装置22は、平行に配置された第1のベルトコンベア23及び第2のベルトコンベア24を備え、第1のベルトコンベア23は、4個の電極板積載部材20を4箇所の受取位置P1〜P4に配置し、かつ受取位置P4に隣り合う位置に1個の電極板積載部材20の待機スペースSを確保可能な長さを有する。第2のベルトコンベア24は、第1のベルトコンベア23と同じ長さを有し、受取位置P1と対向する位置が電極板積載部材20の待機スペースSとなる。電極板積載部材移動装置22は、電極板積載部材20の待機位置を所定周期で変更して各電極板積載部材20を全ての受取位置P1〜P4へ移動させるように制御装置により制御される。 The electrode plate stacking member moving device 22 includes a first belt conveyor 23 and a second belt conveyor 24 arranged in parallel, and the first belt conveyor 23 includes four electrode plate stacking members 20 at four locations. It is arranged at the receiving positions P1 to P4 and has a length that can secure the standby space S for one electrode plate stacking member 20 at a position adjacent to the receiving position P4. The second belt conveyor 24 has the same length as the first belt conveyor 23, and the position facing the receiving position P <b> 1 becomes the standby space S of the electrode plate stacking member 20. The electrode plate stacking member moving device 22 is controlled by the control device so as to change the standby position of the electrode plate stacking member 20 at a predetermined cycle and move each electrode plate stacking member 20 to all the receiving positions P1 to P4.
図1及び図3に示すように、積載装置21は吸引部25を備えている。吸引部25は、電極シート11から切り出された4個の電極板18をそれぞれ四隅において同時に吸引して水平状態で保持し、電極板18の配列方向を90度変更した図3に2点鎖線で示す位置において、第1のベルトコンベア23の受取位置P1〜P4上に配置された電極板積載部材20上に受け渡す(積載する)ようになっている。詳述すると、吸引部25は、アーム26を介して昇降装置27により昇降可能に支持され、電極シート11から切り出された電極板18を吸引可能な位置と、吸引した電極板18を電極シート11より上方で吸引部25の回動に支障とならない上昇位置との間で昇降される。昇降装置27は、回動装置28により回動される。 As shown in FIGS. 1 and 3, the stacking device 21 includes a suction unit 25. The suction unit 25 simultaneously sucks and holds the four electrode plates 18 cut out from the electrode sheet 11 at the four corners in a horizontal state, and changes the arrangement direction of the electrode plates 18 by 90 degrees with a two-dot chain line in FIG. In the position shown, it is delivered (stacked) onto the electrode plate stacking member 20 disposed on the receiving positions P1 to P4 of the first belt conveyor 23. More specifically, the suction unit 25 is supported by an elevating device 27 via an arm 26 so as to be lifted and lowered, and a position where the electrode plate 18 cut out from the electrode sheet 11 can be sucked, and the sucked electrode plate 18 as the electrode sheet 11. It is moved up and down between a raised position that does not hinder the rotation of the suction part 25 at a higher position. The elevating device 27 is rotated by a rotating device 28.
第1のベルトコンベア23及び第2のベルトコンベア24の第1端部の近くには、第1のベルトコンベア23上から第2のベルトコンベア24上に電極板積載部材20を移動させる移載装置29が設けられている。また、第2端部の近くには、第2のベルトコンベア24上から第1のベルトコンベア23上に電極板積載部材20を移動させる移載装置30が設けられている。移載装置29,30として、例えばロボットアームが設けられている。 In the vicinity of the first end of the first belt conveyor 23 and the second belt conveyor 24, a transfer device that moves the electrode plate stacking member 20 from the first belt conveyor 23 onto the second belt conveyor 24. 29 is provided. In addition, a transfer device 30 for moving the electrode plate stacking member 20 from the second belt conveyor 24 to the first belt conveyor 23 is provided near the second end. As the transfer devices 29 and 30, for example, robot arms are provided.
次に前記のように構成された電極板の切出し積載装置を使用した蓄電装置の製造方法における電極板の切出し積載工程の作用について説明する。
電極シート送り装置16の作用により、帯状の電極シート11がロール状に巻回された電極ロール12から電極シート11が間欠的に繰り出され、両ガイドローラ15の間を水平状態で移動して巻取り部14に巻き取られる。電極シート11が停止した状態で、打ち抜き装置19により電極シート11から電極板18が打ち抜かれて切り出される。図3に示すように、電極板18は、電極シート11の幅方向において4枚が1列で同時に打ち抜かれる。打ち抜かれた4枚の電極板18は、積載装置21の吸引部25によって図4に示すように四隅において吸引された状態で上方へ移動された後、回動装置28の駆動によって第1のベルトコンベア23上の受取位置P1〜P4に待機する4個の電極板積載部材20と対向する位置まで回動される。なお、打ち抜き装置19により打ち抜かれた1列の電極板18が吸引部25により電極シート11から取り出されると、電極シート送り装置16が所定量駆動された後、打ち抜き装置19により次の1列の電極板18の打ち抜きが行われる。
Next, the operation of the electrode plate cutting and stacking process in the method of manufacturing the power storage device using the electrode plate cutting and stacking apparatus configured as described above will be described.
By the action of the electrode sheet feeding device 16, the electrode sheet 11 is intermittently fed out from the electrode roll 12 in which the belt-like electrode sheet 11 is wound in a roll shape, moved between the guide rollers 15 in a horizontal state, and wound. It is wound around the take-up part 14. With the electrode sheet 11 stopped, the electrode plate 18 is punched from the electrode sheet 11 by the punching device 19 and cut out. As shown in FIG. 3, four electrode plates 18 are simultaneously punched in one row in the width direction of the electrode sheet 11. The four punched electrode plates 18 are moved upward in a state of being sucked at the four corners as shown in FIG. 4 by the suction portion 25 of the stacking device 21, and then driven by the rotation device 28 to be the first belt. It is rotated to a position facing the four electrode plate stacking members 20 waiting at the receiving positions P1 to P4 on the conveyor 23. When one row of electrode plates 18 punched by the punching device 19 is taken out from the electrode sheet 11 by the suction unit 25, the electrode sheet feeding device 16 is driven by a predetermined amount, and then the next row of electrode plates 19 is driven by the punching device 19. The electrode plate 18 is punched out.
次に昇降装置27が駆動され、吸引部25が各電極板18をそれぞれ対向する各電極板積載部材20あるいは既に電極板積載部材20上に積載されている電極板18と接近する位置まで下降した後、吸引部25の吸引作用が解除されて各電極板18が各電極板積載部材20上に積載される。 Next, the elevating device 27 is driven, and the suction unit 25 is lowered to a position approaching each electrode plate stacking member 20 facing each electrode plate 18 or the electrode plate 18 already loaded on the electrode plate stacking member 20. Thereafter, the suction action of the suction portion 25 is released and each electrode plate 18 is loaded on each electrode plate stacking member 20.
次に昇降装置27及び回動装置28が駆動され、吸引部25は再び図3に実線で示すように、電極板取り出し位置に移動配置されて次に切断された1列の電極板18と対応する状態になる。以下、前記と同様にして、吸引部25による電極板18の取り出し作業及び各電極板積載部材20上への積載作業が所定回数行われる。所定回数とは、積層型電極組立体を構成する電極板18の枚数を電極シート11から切り出される1列の電極板18の数で割った数以下の数になる。例えば、積層型電極組立体を構成する電極板18の枚数が60枚であれば、この実施形態では電極シート11から切り出される1列の電極板18の数が4枚のため、所定回数は、60÷4の答15以下の数となる。そして、第1のベルトコンベア23の駆動回数を少なくするため、この実施形態では所定回数を15回としている。 Next, the elevating device 27 and the rotating device 28 are driven, and the suction portion 25 is moved to the electrode plate take-out position again as shown by a solid line in FIG. It becomes a state to do. Thereafter, in the same manner as described above, the work of taking out the electrode plate 18 by the suction portion 25 and the work of loading on each electrode plate stacking member 20 are performed a predetermined number of times. The predetermined number of times is equal to or less than the number obtained by dividing the number of electrode plates 18 constituting the laminated electrode assembly by the number of electrode plates 18 in one row cut out from the electrode sheet 11. For example, if the number of electrode plates 18 constituting the laminated electrode assembly is 60, in this embodiment, the number of electrode plates 18 in one row cut out from the electrode sheet 11 is 4, so the predetermined number of times is The number is equal to or less than 15 of 60 ÷ 4. And in order to reduce the drive frequency of the 1st belt conveyor 23, in this embodiment, the predetermined frequency is set to 15 times.
吸引部25による電極板18の取り出し作業及び各電極板積載部材20上への積載作業が所定回数行われると、第1のベルトコンベア23が図3の右方向へ各電極板積載部材20をその長さ分だけ移動させるように駆動される。その結果、それまで各受取位置P1〜P4に配置されていた電極板積載部材20のうち、図3において右端の受取位置P4に配置されていた電極板積載部材20は待機スペースS上に移動され、他の3個の電極板積載部材20は、それぞれ一つ右の受取位置P2,P3,P4へ移動される。次に第1のベルトコンベア23上の左端の受取位置P1と対向する状態で第2のベルトコンベア24上の待機スペースSに待機していた電極板積載部材20が第1のベルトコンベア23上の左端の受取位置P1へ移動される。 When the extraction operation of the electrode plate 18 by the suction unit 25 and the loading operation on each electrode plate stacking member 20 are performed a predetermined number of times, the first belt conveyor 23 moves each electrode plate stacking member 20 to the right in FIG. It is driven to move by the length. As a result, among the electrode plate stacking members 20 that have been disposed at the receiving positions P1 to P4 so far, the electrode plate stacking member 20 that has been disposed at the rightmost receiving position P4 in FIG. The other three electrode plate stacking members 20 are moved to the right receiving positions P2, P3, and P4, respectively. Next, the electrode plate stacking member 20 that has been waiting in the standby space S on the second belt conveyor 24 in a state of facing the leftmost receiving position P1 on the first belt conveyor 23 is on the first belt conveyor 23. It is moved to the receiving position P1 at the left end.
次にその状態で前記と同様に、電極シート送り装置16、積載装置21、昇降装置27、回動装置28が駆動されて受取位置P1〜P4に待機する電極板積載部材20上に電極板18が所定枚数積載される。なお、第1のベルトコンベア23の待機スペースSに移動された電極板積載部材20は、受取位置P1〜P4に待機する電極板積載部材20上に次の所定枚数の電極板18の積載が完了するまでに、第2のベルトコンベア24上に移動された後、第2のベルトコンベア24の駆動により、受取位置P1と対向する待機スペースSに配置された状態となる。 Next, in the same manner as described above, the electrode plate 18 is placed on the electrode plate stacking member 20 which is driven at the receiving positions P1 to P4 by driving the electrode sheet feeding device 16, the stacking device 21, the lifting device 27, and the rotating device 28. Is loaded. The electrode plate stacking member 20 moved to the standby space S of the first conveyor belt 23 has completed loading the next predetermined number of electrode plates 18 on the electrode plate stacking member 20 waiting at the receiving positions P1 to P4. In the meantime, after being moved onto the second belt conveyor 24, the second belt conveyor 24 is driven to be placed in the standby space S facing the receiving position P1.
前記のように5個の電極板積載部材20が、4箇所の受取位置P1〜P4と、待機スペースSとの間を所定周期で移動されて各電極板積載部材20上に電極板18が積層された場合に、各電極板積載部材20上に4箇所の切り出し位置から切り出された電極板18が均等に積載されることを図5に示す。図5では、5個の電極板積載部材20をA〜Eの符号で区別し、図5における各電極板積載部材20の配置位置の左端側から順に受取位置P1,P2,P3,P4に対応し右端が待機スペースSに対応する。 As described above, the five electrode plate stacking members 20 are moved at a predetermined cycle between the four receiving positions P1 to P4 and the standby space S, and the electrode plates 18 are stacked on each electrode plate stacking member 20. FIG. 5 shows that the electrode plates 18 cut out from the four cutout positions are evenly stacked on each electrode plate stacking member 20 when it is done. In FIG. 5, five electrode plate stacking members 20 are distinguished by reference numerals A to E, and correspond to receiving positions P1, P2, P3, and P4 in order from the left end side of the arrangement position of each electrode plate stacking member 20 in FIG. The right end corresponds to the standby space S.
先ず、図5(a)の状態でA〜Dの電極板積載部材20に4箇所の切り出し位置から切り出された電極板18がそれぞれ積載される。各電極板積載部材20上に記載された数字は、電極板積載部材20上に積載された電極板18の4箇所の切り出し位置を区別する数字である。即ちA〜Dの電極板積載部材20上に1,2,3,4の切り出し位置から切り出された電極板18が積載される。 First, in the state of FIG. 5A, the electrode plates 18 cut from the four cut-out positions are loaded on the electrode plate stacking members 20 of A to D, respectively. The numbers described on each electrode plate stacking member 20 are numbers that distinguish the four cutout positions of the electrode plate 18 stacked on the electrode plate stacking member 20. That is, the electrode plates 18 cut out from the cutting positions 1, 2, 3, and 4 are stacked on the electrode plate stacking members 20 of A to D.
次に各電極板積載部材20の待機位置が図5(b)の状態に変更された後、電極板18の積載が行われ、Aの電極板積載部材20には1,2、Bの電極板積載部材20には2,3、Cの電極板積載部材20には3,4、Dの電極板積載部材20には4、Eの電極板積載部材20には1の切り出し位置から切り出された電極板18が積載された状態になる。 Next, after the standby position of each electrode plate stacking member 20 is changed to the state shown in FIG. 5B, the electrode plate 18 is loaded, and the electrode plate stacking member 20 has electrodes 1, 2, and B. The plate stacking member 20 is cut out from 2, 3, the C electrode plate stacking member 20 is 3, 4, the D electrode plate stacking member 4 is 4, and the E electrode plate stacking member 20 is cut out from one cutting position. The electrode plate 18 is loaded.
以下、各電極板積載部材20の待機位置がそれぞれ図5(c)の状態、図5(d)の状態、図5(e)の状態に順に変更されるとともに各状態において電極板18の積載が行われることにより、図5(e)に示すように、A〜Eの各電極板積載部材20上に4箇所の切り出し位置から切り出された電極板18が均等に積載された状態になる。このようなサイクルが繰り返されて、最終的に各電極板積載部材20上には数百枚から数千枚の電極板18が積層された状態になる。そして、正極用の電極板18が積層された電極板積載部材20と、負極用の電極板18が積層された電極板積載部材20とが積層型電極組立体の組立工程において使用される。 Hereinafter, the standby position of each electrode plate stacking member 20 is sequentially changed to the state of FIG. 5C, the state of FIG. 5D, and the state of FIG. 5E, and the electrode plates 18 are stacked in each state. As shown in FIG. 5E, the electrode plates 18 cut out from the four cut-out positions are evenly stacked on the electrode plate stacking members 20 of A to E, as shown in FIG. Such a cycle is repeated, and finally several hundred to several thousand electrode plates 18 are stacked on each electrode plate stacking member 20. The electrode plate stacking member 20 in which the positive electrode plates 18 are stacked and the electrode plate stacking member 20 in which the negative electrode plates 18 are stacked are used in the assembly process of the stacked electrode assembly.
この実施形態によれば、以下に示す効果を得ることができる。
(1)積層型蓄電装置の製造方法は、活物質層17が塗布された帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出した電極板18を使用する積層型蓄電装置の製造方法である。そして、電極シート11から1サイクルあたりに切り出される電極板18の数と同じ数以上の電極板積載部材20を設け、電極シート11から切り出した複数枚の電極板18を1枚ずつ各電極板積載部材20上に積載し、所定周期で2つ以上の電極板積載部材20の位置を変更する電極板切出し積載工程を備える。したがって、帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出した電極板18を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる。
According to this embodiment, the following effects can be obtained.
(1) A method for manufacturing a stacked type power storage device is a method for manufacturing a stacked type power storage device that uses a plurality of electrode plates 18 cut out from a strip-shaped electrode sheet 11 coated with an active material layer 17 per cycle. . Then, the number of electrode plate stacking members 20 equal to or more than the number of electrode plates 18 cut out per cycle from the electrode sheet 11 is provided, and a plurality of electrode plates 18 cut out from the electrode sheet 11 are stacked one by one. There is provided an electrode plate cutting and stacking step of stacking on the member 20 and changing the positions of two or more electrode plate stacking members 20 at a predetermined cycle. Therefore, the variation in the basis weight of the active material of the laminated electrode assembly configured by using the electrode plates 18 cut out from the strip-shaped electrode sheet 11 per cycle is suppressed without reducing the production rate. be able to.
(2)電極板積載部材20は1サイクルあたりに切り出される電極板18の数より1つ多く設けられ、電極板積載部材20は電極板18が積載される受取位置P1〜P4と、電極板積載部材20の数より1つ多く設けられた待機スペースSとを移動する。そのため、電極板積載部材20の位置変更の際に、次に電極板18を受け取る受取位置P1〜P4まで各電極板積載部材20が移動する距離を短くでき、簡単な構成で位置変更にかかる時間を短くすることができる。 (2) The electrode plate stacking member 20 is provided one more than the number of electrode plates 18 cut out per cycle, and the electrode plate stacking member 20 includes receiving positions P1 to P4 on which the electrode plate 18 is loaded, and electrode plate stacking. The standby space S provided one more than the number of members 20 is moved. Therefore, when the position of the electrode plate stacking member 20 is changed, the distance that each electrode plate stacking member 20 moves to the receiving positions P1 to P4 that receive the electrode plate 18 next can be shortened, and the time required for the position change with a simple configuration. Can be shortened.
(3)電極シート11としてロール状に巻回された電極ロール12が使用され、電極ロール12から繰り出されて電極板18が切り出される。電極シート11としてロール状ではなく平らなシート状のものを使用した場合、何回か電極板18が切り出される毎に新しい電極シート11と交換する必要があり、また、電極板18が切り出された後の電極シート11をその都度処理する必要がある。しかし、電極シート11としてロール状に巻回された電極ロール12を使用した場合、そのような手間が簡単になる。 (3) The electrode roll 12 wound in a roll shape is used as the electrode sheet 11, and the electrode plate 18 is cut out from the electrode roll 12. When the electrode sheet 11 is not a roll but a flat sheet, it is necessary to replace the electrode plate 11 with a new electrode sheet 18 every time the electrode plate 18 is cut out several times, and the electrode plate 18 is cut out. It is necessary to process the subsequent electrode sheet 11 each time. However, when the electrode roll 12 wound in the form of a roll is used as the electrode sheet 11, such labor is simplified.
(4)電極板18の切出し積載装置は、活物質層17が塗布された帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出した電極板18を積載する。そして、電極シート11から1サイクルあたりに複数枚ずつ電極板18を切り出す切出し装置(打ち抜き装置19)と、1サイクルあたりに複数枚ずつ切り出される電極板18の数以上設けられた電極板積載部材20と、電極シート11から1サイクルあたりに切り出された複数枚の電極板18を、切出し位置毎に対応する受取位置P1〜P4に待機する電極板積載部材20上に積載する積載装置21とを備える。さらに、電極板積載部材20の2つ以上の受取位置を所定周期で変更させる電極板積載部材移動装置22を備える。したがって、帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出した電極板18を使用して構成される積層型電極組立体の活物質の目付けのバラツキを、生産速度を低下させずに抑制することができる。 (4) The electrode plate 18 cutting and stacking apparatus stacks a plurality of electrode plates 18 cut out per cycle from the belt-like electrode sheet 11 coated with the active material layer 17. Then, a plurality of electrode plates 18 are cut out from the electrode sheet 11 per cycle and the electrode plate stacking member 20 is provided in a number equal to or more than the number of electrode plates 18 cut out per cycle. And a stacking device 21 for stacking a plurality of electrode plates 18 cut out from the electrode sheet 11 per cycle on the electrode plate stacking member 20 standing by at the receiving positions P1 to P4 corresponding to each cutting position. . Furthermore, an electrode plate stacking member moving device 22 that changes two or more receiving positions of the electrode plate stacking member 20 at a predetermined cycle is provided. Therefore, the variation in the basis weight of the active material of the laminated electrode assembly configured by using the electrode plates 18 cut out from the strip-shaped electrode sheet 11 per cycle is suppressed without reducing the production rate. be able to.
(第2の実施形態)
次に、第2の実施形態を図6〜図8にしたがって説明する。この実施形態では、各電極板積載部材20の受取位置を所定周期で変更する電極板積載部材移動装置の構成が第1の実施形態と大きく異なっている。第1の実施形態と同一部分は同一符号を付して詳しい説明を省略する。
(Second Embodiment)
Next, a second embodiment will be described with reference to FIGS. In this embodiment, the configuration of the electrode plate stacking member moving device that changes the receiving position of each electrode plate stacking member 20 at a predetermined period is greatly different from that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.
図6及び図7に示すように、電極板積載部材移動装置31は、4個の電極板積載部材20が等間隔で載置される支持プレート32を備え、各電極板積載部材20の底面には中心を挟んだ対称位置に2個の係合穴20aが形成されている。支持プレート32には、所定位置に載置された電極板積載部材20の係合穴20aと対向する位置に挿通孔32aが形成されている。支持プレート32の下方には、隣り合う電極板積載部材20を同時に支持プレート32から離間させた状態で回動させるアーム33を有する3台の積載部材回動装置34a,34b,34cが1列に設けられている。中央に設けられた積載部材回動装置34bと、その両側に設けられた積載部材回動装置34a,34cとは交互に駆動される。積載部材回動装置34bが駆動されるときには、積載部材回動装置34a,34cのアーム33は、電極板積載部材20の係合穴20aから退避した位置に保持され、積載部材回動装置34a,34cが駆動されるときには、積載部材回動装置34bのアーム33は、電極板積載部材20の係合穴20aから退避した位置に保持される。 As shown in FIGS. 6 and 7, the electrode plate stacking member moving device 31 includes a support plate 32 on which the four electrode plate stacking members 20 are mounted at equal intervals, and on the bottom surface of each electrode plate stacking member 20. Are formed with two engaging holes 20a at symmetrical positions with the center in between. An insertion hole 32a is formed in the support plate 32 at a position facing the engagement hole 20a of the electrode plate stacking member 20 placed at a predetermined position. Below the support plate 32, three stacking member rotating devices 34 a, 34 b, 34 c each having an arm 33 that rotates the adjacent electrode plate stacking members 20 while being separated from the support plate 32 in a row. Is provided. The stacking member rotating device 34b provided in the center and the stacking member rotating devices 34a and 34c provided on both sides thereof are driven alternately. When the stacking member rotating device 34b is driven, the arms 33 of the stacking member rotating devices 34a and 34c are held at positions retracted from the engagement holes 20a of the electrode plate stacking member 20, and the stacking member rotating devices 34a and 34c are moved. When 34 c is driven, the arm 33 of the stacking member rotating device 34 b is held at a position retracted from the engagement hole 20 a of the electrode plate stacking member 20.
次に電極板積載部材移動装置31の作用を図8にしたがって説明する。
図8では、4個の電極板積載部材20を1〜4の数字で区別し、図8における各電極板積載部材20の配置位置の左端側から順に受取位置P1,P2,P3,P4に対応する。積載部材回動装置34aの駆動により受取位置P1,P2に配置された2個の電極板積載部材20の位置が交換され、積載部材回動装置34bの駆動により受取位置P2,P3に配置された2個の電極板積載部材20の位置が交換され、積載部材回動装置34cの駆動により受取位置P3,P4に配置された2個の電極板積載部材20の位置が交換される。両積載部材回動装置34a,34cは同時に駆動され、積載部材回動装置34bは単独で駆動される。
Next, the operation of the electrode plate stacking member moving device 31 will be described with reference to FIG.
In FIG. 8, the four electrode plate stacking members 20 are distinguished by numbers 1 to 4 and correspond to the receiving positions P1, P2, P3, and P4 in order from the left end side of the arrangement position of each electrode plate stacking member 20 in FIG. To do. The positions of the two electrode plate stacking members 20 disposed at the receiving positions P1 and P2 are exchanged by driving the stacking member rotating device 34a, and are disposed at the receiving positions P2 and P3 by driving the stacking member rotating device 34b. The positions of the two electrode plate stacking members 20 are exchanged, and the positions of the two electrode plate stacking members 20 arranged at the receiving positions P3 and P4 are exchanged by driving the stacking member rotating device 34c. Both the stacking member rotating devices 34a and 34c are driven simultaneously, and the stacking member rotating device 34b is driven independently.
先ず、図8(a)の状態で1〜4の電極板積載部材20に4箇所の切り出し位置から切り出された電極板18がそれぞれ積載される。その状態で所定回数各電極板積載部材20上に電極板18が積載された後、両積載部材回動装置34a,34cが同時に駆動され、
各電極板積載部材20の待機位置が図8(b)の状態に変更される。その状態で所定回数各電極板積載部材20上に電極板18の積載が行われた後、積載部材回動装置34bが単独で駆動され、各電極板積載部材20の待機位置が図8(c)の状態に変更される。以下、同様に所定回数各電極板積載部材20上に電極板18の積載が行われた後、両積載部材回動装置34a,34cが同時に駆動される状態と、積載部材回動装置34bが単独で駆動される状態とが繰り返されている。その結果、各電極板積載部材20の待機位置が図8(d)の状態、図8(e)の状態、図8(f)の状態、図8(g)の状態を経て、図8(h)の状態に変更される。そして、4個の各電極板積載部材20は、その間に各受取位置P1〜P4にそれぞれ2回ずつ配置された状態で電極板18が積載される。したがって、1〜4の各電極板積載部材20上に積載された電極板18の合計重量が均等になる。なお、この実施形態においては、1個の積層型電極組立体を構成する正極板及び負極板の枚数は、例えば、それぞれ64枚であるため、電極板18が電極板積載部材20上に積載される所定回数を8回としている。
First, in the state of FIG. 8A, the electrode plates 18 cut from the four cut-out positions are loaded on the electrode plate stacking members 20 of 1-4. In this state, after the electrode plate 18 is stacked on each electrode plate stacking member 20 a predetermined number of times, both stacking member rotating devices 34a and 34c are driven simultaneously,
The standby position of each electrode plate stacking member 20 is changed to the state shown in FIG. In this state, after loading the electrode plates 18 on each electrode plate stacking member 20 a predetermined number of times, the stacking member rotating device 34b is driven independently, and the standby position of each electrode plate stacking member 20 is shown in FIG. ) State. Similarly, after the electrode plates 18 are stacked on each electrode plate stacking member 20 a predetermined number of times, both the stacking member rotating devices 34a and 34c are driven simultaneously, and the stacking member rotating device 34b is independent. The state driven by is repeated. As a result, the standby position of each electrode plate stacking member 20 passes through the state of FIG. 8D, the state of FIG. 8E, the state of FIG. 8F, and the state of FIG. The state is changed to h). The four electrode plate stacking members 20 are stacked with the electrode plates 18 in a state where the four electrode plate stacking members 20 are disposed twice at the receiving positions P1 to P4, respectively. Therefore, the total weight of the electrode plates 18 loaded on the electrode plate stacking members 20 of 1 to 4 is equalized. In this embodiment, the number of positive plates and negative plates constituting one stacked electrode assembly is, for example, 64, respectively, so that the electrode plate 18 is stacked on the electrode plate stacking member 20. The predetermined number of times is 8 times.
この第2の実施形態によれば、第1の実施形態の(1),(3)と同様な効果に加えて以下の効果を得ることができる。
(5)受取位置P1〜P4以外の待機位置を設けることなく、電極板積載部材20は、電極板積載部材移動装置31により各受取位置P1〜P4へ移動される。したがって、電極板積載部材移動装置31は、第1の実施形態における電極板積載部材移動装置22に比べて、設置スペースを狭くすることができる。また、装置の構成も簡単になる。
According to the second embodiment, the following effects can be obtained in addition to the same effects as (1) and (3) of the first embodiment.
(5) The electrode plate stacking member 20 is moved to the receiving positions P1 to P4 by the electrode plate stacking member moving device 31 without providing any standby positions other than the receiving positions P1 to P4. Therefore, the electrode plate stacking member moving device 31 can reduce the installation space compared to the electrode plate stacking member moving device 22 in the first embodiment. Also, the configuration of the apparatus is simplified.
実施形態は前記に限定されるものではなく、例えば、次のように具体化してもよい。
○ 第1の実施形態のように第1のベルトコンベア23及び第2のベルトコンベア24を備えた電極板積載部材移動装置22において、図9に示すように、第1のベルトコンベア23は4個の電極板積載部材20の受取位置が設けられる長さで、待機スペースSは第2のベルトコンベア24上にのみ設けられる構成としてもよい。この場合、各電極板積載部材20上への積載作業が所定回数行われると、まず、第1のベルトコンベア23の図9における右端に配置されている電極板積載部材20が第2のベルトコンベア24上に移動された後、第1のベルトコンベア23が駆動されて、第1のベルトコンベア23の左端に受取位置P1用のスペースが設けられる。その状態で第2のベルトコンベア24上に待機していた電極板積載部材20が第1のベルトコンベア23上に移動され、その状態で次の所定回数の積載作業が行われる。この構成では、電極板積載部材移動装置22の設置スペースを第1の実施形態に比べて小さくすることができる。
The embodiment is not limited to the above, and may be embodied as follows, for example.
In the electrode plate stacking member moving device 22 provided with the first belt conveyor 23 and the second belt conveyor 24 as in the first embodiment, as shown in FIG. 9, there are four first belt conveyors 23. The standby space S may be provided only on the second belt conveyor 24 in such a length that the receiving position of the electrode plate stacking member 20 is provided. In this case, when the loading operation on each electrode plate stacking member 20 is performed a predetermined number of times, first, the electrode plate stacking member 20 disposed at the right end in FIG. 9 of the first belt conveyor 23 is the second belt conveyor. After being moved onto 24, the first belt conveyor 23 is driven, and a space for the receiving position P1 is provided at the left end of the first belt conveyor 23. In this state, the electrode plate stacking member 20 waiting on the second belt conveyor 24 is moved onto the first belt conveyor 23, and the next predetermined number of stacking operations are performed in this state. In this configuration, the installation space for the electrode plate stacking member moving device 22 can be reduced as compared with the first embodiment.
○ 電極シート11上に形成された活物質層17の膜厚が幅方向において対称であれば、4個の電極板積載部材20がそれぞれ4箇所の受取位置に配置される必要はなく、幅方向の中央を挟んで両側に配置された2個の電極板積載部材20同士でその配置位置を変更すればよい。その場合、第2の実施形態における積載部材回動装置34a,34cを設けてもよい。即ち、電極板切出し積載工程は、各電極板積載部材20上に積載された電極板18の合計重量が均等になるように電極板積載部材20の位置を変更すればよく、1サイクルあたりに切り出される電極板18の枚数に対応して設けられた全ての受取位置に各電極板積載部材20が移動配置される必要はない。したがって、電極シート11に塗布された活物質層17の厚さのバラツキ状態によっては、各電極板積載部材20の位置を変更するために各電極板積載部材を移動させる距離を少なくすることができる。 If the film thickness of the active material layer 17 formed on the electrode sheet 11 is symmetrical in the width direction, the four electrode plate stacking members 20 do not need to be arranged at the four receiving positions, and the width direction What is necessary is just to change the arrangement position between the two electrode plate stacking members 20 arranged on both sides with respect to the center. In that case, you may provide the stacking member rotation apparatuses 34a and 34c in 2nd Embodiment. That is, in the electrode plate cutting and stacking step, the position of the electrode plate stacking member 20 may be changed so that the total weight of the electrode plates 18 stacked on each electrode plate stacking member 20 is equalized. Each electrode plate stacking member 20 does not need to be moved and arranged at all receiving positions provided corresponding to the number of electrode plates 18 to be provided. Therefore, depending on the thickness variation state of the active material layer 17 applied to the electrode sheet 11, the distance to move each electrode plate stacking member in order to change the position of each electrode plate stacking member 20 can be reduced. .
○ 図10に示すように、2個の電極板積載部材20を載置した状態で駆動される回転テーブル35,36を2個設けて、隣り合う2個の電極板積載部材20同士で電極板積載部材20の配置を変更する構成としてもよい。 As shown in FIG. 10, two rotary tables 35 and 36 that are driven in a state where the two electrode plate stacking members 20 are placed are provided, and the electrode plates between two adjacent electrode plate stacking members 20 are provided. The arrangement of the stacking member 20 may be changed.
○ 図11に示すように、第1のベルトコンベア23は4個の電極板積載部材20の受取位置P1〜P4の他に、受取位置P1〜P4の両側にそれぞれ待機スペースSが設けられる長さとし、第2のベルトコンベア24も第1のベルトコンベア23と同じ長さの構成としてもよい。この場合、5個の電極板積載部材20の位置変更を行う場合、第1のベルトコンベア23を電極板積載部材20の1個分の長さ移動させるだけで次の積載作業を開始することができる。詳述すると、図11に示すように、4個の電極板積載部材20が4箇所の受取位置P1〜P4に配置位置され、かつ1個の電極板積載部材20が受取位置P1に隣接した待機スペースSに配置された状態から電極板18の切出し積載作業が開始される。そして、その状態で所定回数の積載作業が行われると、第1のベルトコンベア23が駆動され、受取位置P4に配置されていた電極板積載部材20は、二点鎖線で示すように受取位置P4に隣接する待機スペースSへ移動され、受取位置P1,P2,P3に配置されていた電極板積載部材20は、それぞれ受取位置P2,P3,P4へ移動される。また、第1のベルトコンベア23上の受取位置P1に隣り合う待機スペースSに待機していた電極板積載部材20は受取位置P1上に移動される。そして、その状態で次の電極板18の所定回数の切出し積載作業が再開される。受取位置P4に隣接する待機スペースSへ移動された電極板積載部材20は、所定回数の切出し積載作業が完了するまでに、受取位置P1に隣接した待機スペースSへ移動されて待機する。 As shown in FIG. 11, the first belt conveyor 23 has a length in which standby spaces S are provided on both sides of the receiving positions P1 to P4 in addition to the receiving positions P1 to P4 of the four electrode plate stacking members 20. The second belt conveyor 24 may have the same length as that of the first belt conveyor 23. In this case, when the position of the five electrode plate stacking members 20 is changed, the next stacking operation can be started only by moving the first belt conveyor 23 by the length of one electrode plate stacking member 20. it can. More specifically, as shown in FIG. 11, four electrode plate stacking members 20 are arranged at four receiving positions P1 to P4, and one electrode plate stacking member 20 is in a standby state adjacent to the receiving position P1. From the state of being arranged in the space S, the cutting and stacking operation of the electrode plate 18 is started. Then, when a predetermined number of stacking operations are performed in this state, the first belt conveyor 23 is driven, and the electrode plate stacking member 20 arranged at the receiving position P4 is moved to the receiving position P4 as indicated by a two-dot chain line. The electrode plate stacking member 20 that has been moved to the standby space S adjacent to the receiving position P1, P2, and P3 is moved to the receiving positions P2, P3, and P4, respectively. Further, the electrode plate stacking member 20 waiting in the standby space S adjacent to the receiving position P1 on the first belt conveyor 23 is moved to the receiving position P1. In this state, a predetermined number of times of cutting and stacking operations for the next electrode plate 18 are resumed. The electrode plate stacking member 20 moved to the standby space S adjacent to the receiving position P4 is moved to the standby space S adjacent to the receiving position P1 and waits until a predetermined number of cut-out stacking operations are completed.
○ 帯状の電極シート11からその幅方向において複数枚ずつ切り出される1列分の電極板18の数は4枚に限らず、電極シート11に塗布された活物質層17の幅に対応して設定され、2枚あるいは3枚としたり、5枚以上としたりしてもよい。 The number of electrode plates 18 for one row cut out from the strip-shaped electrode sheet 11 in the width direction is not limited to four, but is set corresponding to the width of the active material layer 17 applied to the electrode sheet 11 It may be 2 or 3 or 5 or more.
○ 活物質層17は、帯状の電極シート11の長手方向に間欠的に形成されずに、連続的に形成されてもよい。しかし、間欠的に形成された方が無駄になる活物質が少なくなる。 The active material layer 17 may be formed continuously without being intermittently formed in the longitudinal direction of the strip-shaped electrode sheet 11. However, less active material is wasted if formed intermittently.
○ 帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出される電極板18の切り出し位置は、電極シート11の幅方向に1列ずつに限らない。例えば、活物質層17を電極シート11の長手方向に連続的に塗布し、電極板18の切り出し位置を電極シート11の幅方向に対して斜め方向に1列となるようにしたり、電極シートの11の長手方向に1列となるようにしたりしてもよい。電極シートの11の長手方向に1列ずつ切り出す場合、1サイクルあたりに切り出される電極板18の数は、電極シート11の幅方向において1列となるように切り出し可能な数より多く設定することも可能である。 The cut-out positions of the electrode plates 18 cut out from the belt-like electrode sheet 11 by a plurality per cycle are not limited to one row in the width direction of the electrode sheet 11. For example, the active material layer 17 is continuously applied in the longitudinal direction of the electrode sheet 11, and the cutout positions of the electrode plate 18 are arranged in a line obliquely with respect to the width direction of the electrode sheet 11, 11 may be arranged in one row in the longitudinal direction. In the case where one row is cut out in the longitudinal direction of the electrode sheet 11, the number of electrode plates 18 cut out per cycle may be set larger than the number that can be cut out so as to be one row in the width direction of the electrode sheet 11. Is possible.
○ また、帯状の電極シート11から1サイクルあたりに複数枚ずつ切り出される電極板18の切り出し位置は、電極シート11の幅方向、幅方向に対して斜め方向、あるいは長手方向に1列となる位置に限らない。例えば、電極シート11の幅方向及び長手方向にそれぞれ複数枚となる状態、例えば、4枚の電極板18を田の字状となるように切り出してもよい。 In addition, the cut-out positions of the electrode plates 18 cut out from the strip-shaped electrode sheet 11 in a plurality of cycles per cycle are positions in a row in the width direction of the electrode sheet 11, an oblique direction with respect to the width direction, or a longitudinal direction. Not limited to. For example, the electrode sheet 11 may have a plurality of sheets in the width direction and the longitudinal direction, for example, the four electrode plates 18 may be cut out in a square shape.
○ 図12に示すように、活物質層17を電極シート11の幅方向に一定間隔をおいた複数のストライプ状に形成してもよい。図12では活物質層17が3本形成されているため、電極板18を電極シート11の幅方向あるいは幅方向に対して斜め方向に1列に切り出す場合は3枚取りとなる。 As shown in FIG. 12, the active material layer 17 may be formed in a plurality of stripes with a constant interval in the width direction of the electrode sheet 11. In FIG. 12, since three active material layers 17 are formed, when the electrode plate 18 is cut out in a line in the width direction of the electrode sheet 11 or in an oblique direction with respect to the width direction, three sheets are taken.
○ 帯状の電極シート11がロール状に巻回された電極ロール12を繰出し部13に支持して使用する場合、電極ロール12から間欠的に繰り出されて電極板18が切り出された電極シート11は、必ずしも巻取り部14で巻き取らずに処理してもよい。この場合、打ち抜き装置19で電極板18が切り出された後の電極シート11は、例えば、ガイドローラ15及びガイドローラ15と協同して電極シート11を引き取る駆動ローラにより引き取られて下方へ案内される。 When the electrode roll 12 in which the belt-like electrode sheet 11 is wound in a roll shape is supported and used by the feeding portion 13, the electrode sheet 11 that is intermittently drawn from the electrode roll 12 and cut out the electrode plate 18 is However, the processing may not necessarily be performed by the winding unit 14. In this case, the electrode sheet 11 from which the electrode plate 18 has been cut out by the punching device 19 is, for example, taken up by the guide roller 15 and a driving roller for taking up the electrode sheet 11 in cooperation with the guide roller 15 and guided downward. .
○ 受取位置P1〜P4で待機する各電極板積載部材20を受取位置P1〜P4の配列方向に沿って移動させる電極板積載部材移動装置22は、第1のベルトコンベア23及び第2のベルトコンベア24を備えた構成に限らない。例えば、ベルトコンベアに代えてローラコンベアを使用したり、各電極板積載部材20をスライド可能に支持する支持プレートと、支持プレート上に支持された電極板積載部材20と係合して電極板積載部材20を受取位置P1〜P4の配列方向に沿って移動させる移動手段とを設けたりしてもよい。移動手段としてシリンダを使用すれば構成が簡単になる。 The electrode plate stacking member moving device 22 for moving each electrode plate stacking member 20 waiting at the receiving positions P1 to P4 along the arrangement direction of the receiving positions P1 to P4 includes a first belt conveyor 23 and a second belt conveyor. It is not restricted to the structure provided with 24. For example, a roller conveyor may be used instead of the belt conveyor, or the electrode plate stacking member 20 may be slidably supported and the electrode plate stacking member 20 supported on the support plate may be engaged with the electrode plate stacking. A moving means for moving the member 20 along the arrangement direction of the receiving positions P1 to P4 may be provided. If a cylinder is used as the moving means, the configuration becomes simple.
○ 電極シート11としてロール状の電極ロール12から繰り出されるものを使用する変わりに、平らなシート状のものを使用してもよい。
○ 電極板18の切出し装置は、電極シート11の幅方向において複数枚の電極板18を、電極シート11から打ち抜きにより切り出す打ち抜き装置19に限らない。例えば、レーザ装置や切断刃で電極板18を切り出す切出し装置であってもよい。しかし、切り出す枚数が多い場合、打ち抜き装置19の方が複数枚の電極板18を切り出すために要する時間を短くすることができる。
○ Instead of using the electrode sheet 11 fed from the roll-shaped electrode roll 12, a flat sheet-shaped one may be used.
The cutting device for the electrode plate 18 is not limited to the punching device 19 for cutting a plurality of electrode plates 18 from the electrode sheet 11 by punching in the width direction of the electrode sheet 11. For example, a cutting device that cuts the electrode plate 18 with a laser device or a cutting blade may be used. However, when the number of sheets to be cut out is larger, the time required for the punching device 19 to cut out the plurality of electrode plates 18 can be shortened.
S…待機スペース、P1,P2,P3,P4,P1−P4…受取位置、11…電極シート、12…電極ロール、13…繰出し部、17…活物質層、18…電極板、20…電極板積載部材、21…積載装置、22,31…電極板積載部材移動装置。 S ... Standby space, P1, P2, P3, P4, P1-P4 ... Receiving position, 11 ... Electrode sheet, 12 ... Electrode roll, 13 ... Feeding part, 17 ... Active material layer, 18 ... Electrode plate, 20 ... Electrode plate Loading member, 21... Loading device, 22, 31... Electrode plate loading member moving device.
Claims (7)
前記電極シートから1サイクルあたりに切り出される前記電極板の数と同じ数以上の電極板積載部材を設け、前記電極シートから切り出した複数枚の前記電極板を1枚ずつ各前記電極板積載部材上に積載し、所定周期で2つ以上の前記電極板積載部材の位置を変更する電極板切出し積載工程を備えることを特徴とする積層型蓄電装置の製造方法。 A method for manufacturing a stacked power storage device that uses an electrode plate cut out from a strip-shaped electrode sheet coated with an active material layer per cycle.
An electrode plate stacking member equal to or more than the number of the electrode plates cut out per cycle from the electrode sheet is provided, and a plurality of the electrode plates cut out from the electrode sheet are provided on each electrode plate stacking member one by one. A method of manufacturing a stacked type power storage device, comprising: an electrode plate cutting and stacking step of changing the position of two or more electrode plate stacking members at a predetermined cycle.
前記電極シートから1サイクルあたりに複数枚ずつ前記電極板を切り出す切出し装置と、
1サイクルあたりに複数枚ずつ切り出される前記電極板の数以上設けられた電極板積載部材と、
前記電極シートから1サイクルあたりに切り出された複数枚の前記電極板を、切出し位置毎に対応する受取位置に待機する前記電極板積載部材上に積載する積載装置と、
前記電極板積載部材の2つ以上の前記受取位置を所定周期で変更させる電極板積載部材移動装置と
を備えることを特徴とする電極板の切出し積載装置。 An electrode plate cutting and stacking apparatus for stacking a plurality of electrode plates cut out per cycle from a strip-shaped electrode sheet coated with an active material layer,
A cutting device that cuts out the electrode plate a plurality of sheets per cycle from the electrode sheet;
An electrode plate stacking member provided more than the number of the electrode plates cut out by a plurality of sheets per cycle;
A stacking device for stacking a plurality of the electrode plates cut out per cycle from the electrode sheet on the electrode plate stacking member waiting at a receiving position corresponding to each cutting position;
An electrode plate cutting and stacking apparatus comprising: an electrode plate stacking member moving device that changes two or more receiving positions of the electrode plate stacking member at a predetermined cycle.
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JP2020077487A (en) * | 2018-11-06 | 2020-05-21 | トヨタ自動車株式会社 | Manufacturing apparatus of sheet-like electrode laminate |
JP2020080248A (en) * | 2018-11-13 | 2020-05-28 | トヨタ自動車株式会社 | Manufacturing apparatus of layered product of sheet-like electrode |
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JPH07116936A (en) * | 1993-10-27 | 1995-05-09 | Furukawa Electric Co Ltd:The | Automatic part laminating method and device to perform this method |
JP2002184450A (en) * | 2000-12-13 | 2002-06-28 | Matsushita Electric Ind Co Ltd | Method of forming group of plates for rectangular battery |
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JPH07116936A (en) * | 1993-10-27 | 1995-05-09 | Furukawa Electric Co Ltd:The | Automatic part laminating method and device to perform this method |
JP2002184450A (en) * | 2000-12-13 | 2002-06-28 | Matsushita Electric Ind Co Ltd | Method of forming group of plates for rectangular battery |
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JP2020077487A (en) * | 2018-11-06 | 2020-05-21 | トヨタ自動車株式会社 | Manufacturing apparatus of sheet-like electrode laminate |
JP2020080248A (en) * | 2018-11-13 | 2020-05-28 | トヨタ自動車株式会社 | Manufacturing apparatus of layered product of sheet-like electrode |
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