JP2009009919A - Manufacturing method and manufacturing device of secondary battery - Google Patents

Manufacturing method and manufacturing device of secondary battery Download PDF

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JP2009009919A
JP2009009919A JP2007172759A JP2007172759A JP2009009919A JP 2009009919 A JP2009009919 A JP 2009009919A JP 2007172759 A JP2007172759 A JP 2007172759A JP 2007172759 A JP2007172759 A JP 2007172759A JP 2009009919 A JP2009009919 A JP 2009009919A
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electrode plate
continuous separator
separator
positive electrode
continuous
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JP5048404B2 (en
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Toru Fukunaga
徹 福永
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Toray Engineering Co Ltd
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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
    • 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
    • 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
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method and manufacturing device of a secondary battery capable of coping with manufacture of a large-capacity lithium secondary battery and with improved productivity as compared with conventional manufacturing facilities. <P>SOLUTION: Electrode plates made of a plurality of cathode plates and anode plates are arranged on a continuous separator used for partitioning of the electrode plates so as to retain a designated interval for each electrode plate and make a tab arranged on the electrode plates locate on the outside of the continuous separator; an other continuous separator used for partitioning of the electrode plates is overlapped on the continuous separator on which the electrode plates are arranged; both the continuous separators in the peripheries of the electrode plates are glued by pasting by heating fusion; and the cathode plates and the anode plates are stored in a laminated state so as to be alternately overlapped with each other via the continuous separators. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、枚葉状の正極板と負極板との間にシート状のセパレータを介在させて積層を形成するリチウム２次電池の製造方法と製造装置に関するものである。   The present invention relates to a method and an apparatus for manufacturing a lithium secondary battery in which a sheet-like separator is interposed between a sheet-like positive electrode plate and a negative electrode plate to form a stack.

正極板と負極板の間にセパレータを介在させて２次電池を製造する製造装置として、特許文献１のような製造装置が知られている。   As a manufacturing apparatus for manufacturing a secondary battery by interposing a separator between a positive electrode plate and a negative electrode plate, a manufacturing apparatus as in Patent Document 1 is known.

特許文献１の製造装置は、図４に示すように、セパレータを供給するセパレータ供給部１と、セパレータを引き出すグリップチャック１１と、正極板と負極板を供給する正極板供給機構３０と負極板供給機構３１と、回転チャック機構４５とを備えている。   As shown in FIG. 4, the manufacturing apparatus of Patent Document 1 includes a separator supply unit 1 that supplies a separator, a grip chuck 11 that pulls out the separator, a positive electrode plate supply mechanism 30 that supplies a positive electrode plate and a negative electrode plate, and a negative electrode plate supply. A mechanism 31 and a rotary chuck mechanism 45 are provided.

まず、グリップチャック１１がセパレータをセパレータ供給部１から所定量引き出す。次に、セパレータを挟んで対向位置に配置されている正極板供給機構３０と負極板供給機構３１が、引き出されたセパレータに、正極板と負極板を供給配置する。次に、回転チャック機構４５が正極板と負極板をクランプし、クランプした状態で半回転する。次に、回転チャック機構の半回転にあわせて、グリップチャック１１がセパレータ供給部側に戻る。次に、正極板供給機構３０と負極板供給機構３１が、セパレータで挟まれた正極板と負極板の外側に、さらに正極板と負極板を供給配置する。次に、回転チャック機構４５が、積層された正極板と負極板をクランプした状態で半回転する。回転チャック機構４５が、半回転することで２層目を形成する。次に、回転チャック機構４５の半回転にあわせて、グリップチャック１１がセパレータ供給側に戻る。以後、グリップチャック１１が所定の高さ（正極板供給機構および負極板供給機構の高さ）に戻るまで同様の動作を繰り返す。グリップチャック１１が所定の高さに戻ると、カッタがセパレータ供給部側のセパレータを切断し、グリップチャック１１がセパレータを開放する。次に、回転チャック機構が積層された正極板と負極板を次の工程に搬送する。このように、特許文献１の製造装置は、セパレータに正極板と負極板を供給配置し、クランプさせた正極板と負極板を回転チャック機構４５で半回転しながらリチウム２次電池を製造している。   First, the grip chuck 11 pulls out the separator from the separator supply unit 1 by a predetermined amount. Next, the positive electrode plate supply mechanism 30 and the negative electrode plate supply mechanism 31 that are disposed at opposite positions with the separator interposed therebetween supply and arrange the positive electrode plate and the negative electrode plate to the drawn separator. Next, the rotary chuck mechanism 45 clamps the positive electrode plate and the negative electrode plate, and makes a half rotation in the clamped state. Next, the grip chuck 11 returns to the separator supply unit side in accordance with the half rotation of the rotary chuck mechanism. Next, the positive electrode plate supply mechanism 30 and the negative electrode plate supply mechanism 31 further supply and arrange the positive electrode plate and the negative electrode plate outside the positive electrode plate and the negative electrode plate sandwiched between the separators. Next, the rotary chuck mechanism 45 makes a half rotation while clamping the stacked positive electrode plate and negative electrode plate. The rotary chuck mechanism 45 forms a second layer by half rotation. Next, in accordance with the half rotation of the rotary chuck mechanism 45, the grip chuck 11 returns to the separator supply side. Thereafter, the same operation is repeated until the grip chuck 11 returns to a predetermined height (height of the positive electrode plate supply mechanism and the negative electrode plate supply mechanism). When the grip chuck 11 returns to a predetermined height, the cutter cuts the separator on the separator supply unit side, and the grip chuck 11 opens the separator. Next, the positive electrode plate and the negative electrode plate on which the rotating chuck mechanism is stacked are conveyed to the next step. As described above, the manufacturing apparatus disclosed in Patent Document 1 supplies the positive electrode plate and the negative electrode plate to the separator, and manufactures the lithium secondary battery while rotating the clamped positive electrode plate and the negative electrode plate halfway by the rotating chuck mechanism 45. Yes.

特開２００５−１９０７７７号公報JP 2005-190777 A

特許文献１の装置では、セパレータの引き出された長さ分だけ正極板と負極板が折り重ねられる構成となっている。大容量のリチウム２次電池のように、セパレータに折り重ねられる正極板と負極板の枚数が増えると、このような装置では対応できなくなっている。   The apparatus of Patent Document 1 is configured such that the positive electrode plate and the negative electrode plate are folded by the length of the separator drawn out. Such a device cannot cope with the increase in the number of positive and negative electrode plates folded on the separator as in a large capacity lithium secondary battery.

また、正極板と負極板はセパレータに対して固定されていないので搬送時等に積層した位置からずれてしまう問題もある。電極の位置ズレは、短絡事故により短時間に大電流が電極間に流れ爆発、発火事故などが発生する危険性がある。   Moreover, since the positive electrode plate and the negative electrode plate are not fixed with respect to the separator, there is a problem that the positive electrode plate and the negative electrode plate are displaced from the stacked positions during transportation. There is a risk that displacement of the electrodes may cause an explosion or ignition accident due to a large current flowing between the electrodes in a short time due to a short circuit accident.

本発明は、大容量のリチウム２次電池の製造に対応でき、従来の製造装置よりも生産性が向上したリチウム２次電池の製造方法と製造装置を提供することを目的としている。   An object of the present invention is to provide a method and an apparatus for manufacturing a lithium secondary battery that can cope with the manufacture of a large-capacity lithium secondary battery and that has improved productivity over conventional manufacturing apparatuses.

上記の課題を達成するために、請求項１に記載の２次電池製造方法は、
電極板の仕切りに用いられる連続セパレータに、複数の正極板と負極板から構成される電極板を電極板毎に所定の間隔を保持し、前記電極板に設けられたタブが前記連続セパレータの外側になるように配置し、
他方の電極板の仕切りに用いられる連続セパレータを、前記電極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を
加熱溶融により貼り合わせて接着し、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納することを特徴とする２次電池製造方法である。 In order to achieve the above object, a method for manufacturing a secondary battery according to claim 1 comprises:
An electrode plate composed of a plurality of positive and negative electrode plates is maintained at a predetermined interval for each electrode plate, and a tab provided on the electrode plate is arranged outside the continuous separator. Arrange to be
Superimposing the continuous separator used for partitioning the other electrode plate on the continuous separator on which the electrode plate is arranged,
The continuous separators around the electrode plates are bonded together by heating and melting,
The secondary battery manufacturing method is characterized in that the positive electrode plate and the negative electrode plate are housed in a stacked form so as to alternately overlap with each other via a continuous separator.

請求項２に記載の２次電池製造方法は、
前記電極板が正極板と負極板であり、前記連続セパレータに正極板と負極板を所定の間隔で交互に配置し、
他方の前記連続セパレータを前記電極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を加熱溶融により貼り合わせて、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納する、請求項１に記載の２次電池製造方法である。 The method for manufacturing a secondary battery according to claim 2 comprises:
The electrode plate is a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate are alternately arranged at a predetermined interval on the continuous separator,
The other continuous separator is overlaid on the continuous separator on which the electrode plate is disposed,
Bonding the continuous separators around the electrode plate by heat melting,
It is a secondary battery manufacturing method of Claim 1 accommodated in a laminated form so that a positive electrode plate and a negative electrode plate may alternately overlap via a continuous separator.

請求項３に記載の２次電池製造方法は、
前記電極板が正極板であり、前記連続セパレータに正極板を所定の間隔を保持して配置し、
他方の前記連続セパレータを前記正極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を加熱溶融により貼り合わせて、
裏面に接着剤の塗布された負極板を前記連続セパレータの外周面で正極板の表面および裏面に前記連続セパレータを介して貼り付けて、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納する、請求項１に記載の２次電池製造方法である。 The secondary battery manufacturing method according to claim 3 is:
The electrode plate is a positive electrode plate, and the positive electrode plate is disposed at a predetermined interval on the continuous separator,
The other continuous separator is overlaid on the continuous separator on which the positive electrode plate is disposed,
Bonding the continuous separators around the electrode plate by heat melting,
A negative electrode plate coated with an adhesive on the back surface is attached to the front and back surfaces of the positive electrode plate on the outer peripheral surface of the continuous separator via the continuous separator,
It is a secondary battery manufacturing method of Claim 1 accommodated in a laminated form so that a positive electrode plate and a negative electrode plate may alternately overlap via a continuous separator.

請求項４に記載の２次電池製造装置は、
電極板を挟み込む電極板の下側の連続セパレータと、電極板の上側に位置する他方の連続セパレータと、
電極板に設けられたタブを連続セパレータの外側になるように配置する移載ハンドと、
連続セパレータと電極板と他方の連続セパレータとを重ね合わせるニップロールと、
ニップロールから送り出された連続セパレータの端部と電極板毎の間隙を加熱溶融させるヒータと、
連続セパレータのヒータによる加熱溶融と、連続セパレータへの電極板の配置とを連動させて連続セパレータを間欠移動させる搬送コンベアと、
電極板毎に周囲が張り合わされた連続セパレータを正極板と負極板が前記連続セパレータを介して交互に重なり合うように折り込むスイング機構と、
折り込まれた連続セパレータを積層状に収納する収納箱とからなる２次電池製造装置である。 The secondary battery manufacturing apparatus according to claim 4,
A continuous separator on the lower side of the electrode plate sandwiching the electrode plate, the other continuous separator located on the upper side of the electrode plate,
A transfer hand that arranges tabs provided on the electrode plate to be outside the continuous separator;
A nip roll for superimposing the continuous separator, the electrode plate and the other continuous separator;
A heater for heating and melting the end of the continuous separator fed from the nip roll and the gap for each electrode plate;
A transport conveyor that intermittently moves the continuous separator in conjunction with the heating and melting by the heater of the continuous separator and the arrangement of the electrode plate on the continuous separator;
A swing mechanism that folds a continuous separator whose periphery is bonded to each electrode plate so that a positive electrode plate and a negative electrode plate alternately overlap with each other through the continuous separator;
It is a secondary battery manufacturing apparatus which consists of a storage box which stores the folded continuous separator in a laminated form.

請求項５に記載の２次電池製造装置は、
前記電極板が正極板と負極板であり、前記連続セパレータに正極板と負極板を所定の間隔で交互に配置する移載ハンドを備える、請求項４に記載の２次電池製造装置である。 The secondary battery manufacturing apparatus according to claim 5,
5. The secondary battery manufacturing apparatus according to claim 4, wherein the electrode plates are a positive electrode plate and a negative electrode plate, and the transfer separator includes a transfer hand that alternately arranges the positive electrode plate and the negative electrode plate at a predetermined interval on the continuous separator.

請求項６に記載の２次電池製造装置は、
前記電極板が正極板であり、前記連続セパレータに正極板を所定の間隔を保持して配置する移載ハンドと、
他方の電極板である負極板の裏面に接着剤を塗布する接着剤塗布ノズルと、
正極板の周囲が接着された連続セパレータの正極板に対向する位置に負極板を貼り付ける他方の移載ハンドとを備える、請求項４に記載の２次電池製造装置である。 The secondary battery manufacturing apparatus according to claim 6,
The electrode plate is a positive electrode plate, and a transfer hand that arranges the positive electrode plate at a predetermined interval on the continuous separator;
An adhesive application nozzle for applying an adhesive to the back surface of the negative electrode plate which is the other electrode plate;
It is a secondary battery manufacturing apparatus of Claim 4 provided with the other transfer hand which affixes a negative electrode plate in the position facing the positive electrode plate of the continuous separator to which the circumference | surroundings of the positive electrode plate were adhere | attached.

請求項１に記載の発明によれば、電極板の周囲を連続セパレータの接着により取り囲んでいるので、電極板の位置ズレを防止することができる。そのため、電極板の位置ズレによる短絡事故や爆発・発火事故などを回避することができる。さらに、セパレータが連続セパレータで構成されており、電極板毎に連続セパレータを折り込んで積層タイプの２次電池を構成することができるので、電極板の枚数に制限なく大容量の２次電池の製造に対応することができる。   According to invention of Claim 1, since the circumference | surroundings of the electrode plate are surrounded by adhesion | attachment of the continuous separator, the position shift of an electrode plate can be prevented. Therefore, it is possible to avoid a short circuit accident or an explosion / ignition accident due to the displacement of the electrode plate. Furthermore, since the separator is constituted by a continuous separator, and a laminated type secondary battery can be formed by folding the continuous separator for each electrode plate, the production of a large-capacity secondary battery is not limited by the number of electrode plates. It can correspond to.

請求項２に記載の発明によれば、連続セパレータに正極板と負極板を所定の間隔で交互に配置し周囲を連続セパレータの接着により取り囲み積層状に収納しているので、正極板と負極板の接触がない２次電池を製造することができる。   According to the second aspect of the present invention, the positive electrode plate and the negative electrode plate are alternately arranged at predetermined intervals on the continuous separator, and the periphery is surrounded by the adhesion of the continuous separator and stored in a laminated form. A secondary battery having no contact can be manufactured.

請求項３に記載の発明によれば、連続セパレータを介して正極板と負極板を配置し、負極板を連続セパレータに接着しているので電極の積層状態においてコンパクトな２次電池を製造することができる。また、シート状の連続セパレータで連続的に積層することが出来るので大容量の２次電池の製造に対応することが出来る。   According to the invention described in claim 3, since the positive electrode plate and the negative electrode plate are arranged via the continuous separator, and the negative electrode plate is bonded to the continuous separator, a compact secondary battery is manufactured in a stacked state of the electrodes. Can do. Moreover, since it can laminate | stack continuously with a sheet-like continuous separator, it can respond to manufacture of a high capacity | capacitance secondary battery.

請求項４に記載の発明によれば、連続セパレータの電極板の周囲の接着と、連続セパレータへの電極板の配置を連動して搬送コンベアを間欠運転するので、大容量の２次電池を効率よく製造することができる。また、電極板の周囲の連続セパレータが接着さるので電極板同士の接触を防止することができる。   According to the fourth aspect of the present invention, since the conveyance conveyor is intermittently operated in conjunction with the adhesion around the electrode plate of the continuous separator and the arrangement of the electrode plate on the continuous separator, a large capacity secondary battery is efficiently used. Can be manufactured well. Further, since the continuous separator around the electrode plates is adhered, the contact between the electrode plates can be prevented.

請求項５に記載の発明によれば、移載ハンドで正極板と負極板を移載するので連続セパレータに精度よく配置し連続性の高い生産に効率よく対応できる。   According to the fifth aspect of the present invention, since the positive electrode plate and the negative electrode plate are transferred by the transfer hand, it can be arranged with high accuracy in the continuous separator and can efficiently cope with highly continuous production.

請求項６に記載の発明によれば、接着剤を用いて負極板を連続セパレータに貼り付けているので、正極板と負極板の両方の周囲を連続セパレータで接着しなくても正極板のみの周囲の連続セパレータを接着するだけで効率よく２次電池を製造することができる。   According to the invention described in claim 6, since the negative electrode plate is attached to the continuous separator using the adhesive, only the positive electrode plate can be obtained without adhering the periphery of both the positive electrode plate and the negative electrode plate with the continuous separator. A secondary battery can be efficiently manufactured only by adhering the surrounding continuous separator.

＜実施の形態１＞
次に本発明のリチウム２次電池製造装置（以後、２次電池製造装置と称する）の実施の形態１を図面を参照して説明する。図１は２次電池製造装置の各要部の配置を示す概略斜視図である。まず、図１に基づいて本発明の２次電池製造装置の概略構成を説明する。なお、２次電池製造装置で用いる正極板および負極板の連続セパレータＳを図面の説明上、上セパレータ１００と下セパレータ１０１に区別して記載する。また、電極板ＰＮを正極板１０８と負極板１０９に区別して記載する。上セパレータ１００は、正極板１０８および負極板１０９に対して上側に配置される連続セパレータＳを示し、下セパレータ１０１は、下側に配置される連続セパレータＳを示す。連続セパレータＳの表面には、接着剤が塗布されており、加熱により接着剤が溶融し連続セパレータＳ同士が接着されるようになっている。 <Embodiment 1>
Next, a first embodiment of a lithium secondary battery manufacturing apparatus (hereinafter referred to as a secondary battery manufacturing apparatus) according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view showing an arrangement of each main part of the secondary battery manufacturing apparatus. First, a schematic configuration of the secondary battery manufacturing apparatus of the present invention will be described with reference to FIG. In addition, the continuous separator S of the positive electrode plate and the negative electrode plate used in the secondary battery manufacturing apparatus is described by distinguishing between the upper separator 100 and the lower separator 101 in the explanation of the drawings. Further, the electrode plate PN is described separately as the positive electrode plate 108 and the negative electrode plate 109. The upper separator 100 indicates the continuous separator S disposed on the upper side with respect to the positive electrode plate 108 and the negative electrode plate 109, and the lower separator 101 indicates the continuous separator S disposed on the lower side. An adhesive is applied to the surface of the continuous separator S, and the adhesive is melted by heating so that the continuous separators S are bonded to each other.

２次電池製造装置は、上セパレータ１００が送り出される上セパレータ巻出部１０２と、下セパレータ１０１が送り出される下セパレータ巻出部１０３と、送り出された上セパレータ１００および下セパレータ１０１を把持して所定の長さを引き出すニップロール１０４と、２次電池の積層部１０５と、ロール状の正極材１０６および負極材１０７と、枚葉状の正極板１０８および負極板１０９と、正極板１０８および負極板１０９を搬送コンベア１１０上の下セパレータ１０１に載置する移載ハンド１１２と、載置された正極板１０８と負極板１０９を搬送する搬送コンベア１１０とを備えている。   The secondary battery manufacturing apparatus grips the upper separator unwinding portion 102 to which the upper separator 100 is fed, the lower separator unwinding portion 103 to which the lower separator 101 is fed, and the fed upper separator 100 and the lower separator 101 and A nip roll 104 for pulling out the length, a laminated portion 105 of a secondary battery, a roll-shaped positive electrode material 106 and a negative electrode material 107, a sheet-like positive electrode plate 108 and a negative electrode plate 109, and a positive electrode plate 108 and a negative electrode plate 109. A transfer hand 112 placed on the lower separator 101 on the transport conveyor 110 and a transport conveyor 110 that transports the placed positive plate 108 and negative plate 109 are provided.

正極板１０８と負極板１０９は、ロール状の正極材１０６および負極材１０７から引き出された電極板を、図示していない打ち抜き装置により所定の大きさに切断して形成される。なお、正極板１０８および負極板１０９にはタブ１１１が形成されるように所定の大きさに切断される。切断された正極板１０８および負極板１０９は移載ハンド１１２の近傍に供給される。   The positive electrode plate 108 and the negative electrode plate 109 are formed by cutting the electrode plates drawn from the roll-shaped positive electrode material 106 and the negative electrode material 107 into a predetermined size by a punching device (not shown). The positive electrode plate 108 and the negative electrode plate 109 are cut into a predetermined size so that a tab 111 is formed. The cut positive electrode plate 108 and negative electrode plate 109 are supplied in the vicinity of the transfer hand 112.

移載ハンド１１２はＺ軸回りに回転させる支持部１１３と、この支持部１１３に支持されたアーム１１４と、アーム１１４の先端側に取り付けられた正極板１０８および負極板１０９を吸着する吸着部１１５とを備えている。正極板１０８用、負極板１０９用各々専用に設置された移載ハンド１１２は、吸着部１１５で正極板１０８と負極板１０９を同時に吸着して下セパレータ１０１に正極板１０８と負極板１０９が隣り合うように配置する。配置の際、下セパレータ１０１の進行方向に対して所定間隔を保つように、かつ下セパレータ１０１の端部から所定間隔を保つように配置する。さらに、正極板１０８と負極板１０９に設けられたタブ１１１は、下セパレータ１０１の外側になるように配置する。   The transfer hand 112 has a support portion 113 that rotates around the Z axis, an arm 114 supported by the support portion 113, and a suction portion 115 that sucks the positive electrode plate 108 and the negative electrode plate 109 attached to the distal end side of the arm 114. And. The transfer hand 112 installed exclusively for the positive electrode plate 108 and the negative electrode plate 109 respectively adsorbs the positive electrode plate 108 and the negative electrode plate 109 simultaneously by the adsorbing portion 115, and the positive electrode plate 108 and the negative electrode plate 109 are adjacent to the lower separator 101. Arrange to fit. At the time of arrangement, it is arranged so as to maintain a predetermined interval with respect to the traveling direction of the lower separator 101 and to maintain a predetermined interval from the end of the lower separator 101. Further, the tabs 111 provided on the positive electrode plate 108 and the negative electrode plate 109 are arranged so as to be outside the lower separator 101.

下セパレータ１０１は、ロール状の下セパレータ巻出部１０３より送り出され搬送コンベア１１０上を通り、ニップロール１０４を経由してセパレータ同士の貼り合わせが行われた後、積層部１０５に積層される。搬送コンベア１１０上において、正極板１０８および負極板１０９が所定位置に配置されると、搬送コンベア１１０の端部に備えられているサポート部材１１６が待機位置から９０度旋回し、正極板１０８および負極板１０９を押さえ、搬送中の位置ズレの防止を行うようになっている。なお、サポート部材１１６の待機位置側は、搬送コンベア１１０の進行方向と平行で正極板１０８と負極板１０９の配置される位置に干渉しない位置とする。また、サポート部材１１６は、個々の正極板１０８および負極板１０９を搬送コンベア１１０の進行方向に対して左右に少なくとも２カ所で支えることができるように、搬送コンベア１１０の端部に複数個が備えられている。搬送コンベア１１０は、正極板１０８および負極板１０９の移載時は停止し、サポート部材１１６が動作するとニップロール１０４方向に所定の長さ移動し、間欠運転を行うようになっている。   The lower separator 101 is sent out from the roll-shaped lower separator unwinding unit 103, passes over the conveyor 110, and is bonded to the separators via the nip roll 104, and is then stacked on the stacking unit 105. When the positive electrode plate 108 and the negative electrode plate 109 are disposed at predetermined positions on the conveyor 110, the support member 116 provided at the end of the conveyor 110 is turned 90 degrees from the standby position, and the positive electrode 108 and the negative electrode The plate 109 is pressed to prevent misalignment during conveyance. Note that the standby position side of the support member 116 is parallel to the traveling direction of the conveyor 110 and does not interfere with the position where the positive plate 108 and the negative plate 109 are arranged. In addition, a plurality of support members 116 are provided at the end of the transfer conveyor 110 so that each of the positive plate 108 and the negative plate 109 can be supported in at least two places on the left and right with respect to the traveling direction of the transfer conveyor 110. It has been. The conveyor 110 is stopped when the positive electrode plate 108 and the negative electrode plate 109 are transferred, and when the support member 116 is operated, it moves a predetermined length in the direction of the nip roll 104 to perform intermittent operation.

なお、サポート部材１１６を備える変わりに、移載された正極板１０８と負極板１０９を搬送コンベア１１０上に固定的に保持することができるマグネットコンベア型の搬送コンベア１１０を用いても良い。   Instead of providing the support member 116, a magnet conveyor type transfer conveyor 110 that can hold the transferred positive electrode plate 108 and negative electrode plate 109 on the transfer conveyor 110 may be used.

正極板１０８または負極板１０９が搬送コンベア１１０により搬送され、ニップロール１０４に近づくと、サポート部材１１６が９０度旋回し待機位置側に戻る。そして、正極板１０８または負極板１０９が、上セパレータ巻出部１０２から送り出された上セパレータ１００と、下セパレータ１０１に挟み込まれた状態でニップロール１０４に挟み込まれて重ねられるようになっている。以後、ニップロール１０４から送り出された上セパレータ１００および下セパレータ１０１を連続セパレータＳと呼び、正極板１０８および負極板１０９について電極板ＰＮの記載も用いる。   When the positive plate 108 or the negative plate 109 is transported by the transport conveyor 110 and approaches the nip roll 104, the support member 116 turns 90 degrees and returns to the standby position side. Then, the positive electrode plate 108 or the negative electrode plate 109 is sandwiched and overlapped by the nip roll 104 while being sandwiched between the upper separator 100 fed from the upper separator unwinding portion 102 and the lower separator 101. Hereinafter, the upper separator 100 and the lower separator 101 sent out from the nip roll 104 are referred to as a continuous separator S, and the description of the electrode plate PN is also used for the positive electrode plate 108 and the negative electrode plate 109.

ニップロール１０４から送り出された連続セパレータＳは、ロールヒータ１１７および２本の棒ヒータ１１８によって表面が加熱され接着剤が溶融し連続セパレータＳ同士が接着される。図２に連続セパレータＳと電極板ＰＮ（正極板１０８および負極板１０９）と接着領域を示す。電極板ＰＮは、連続セパレータＳのほぼ中央に配置されている。ロールヒータ１１７は、円筒状のヒータで円筒の外周面が、電極板ＰＮの進行方向で図２の接着領域Ａを走行するようになっている。接着領域Ａは、電極板ＰＮの周囲で連続セパレータＳの端との間の領域となっている。なお、図２において、袋状領域Ｃの中に収納された電極板ＰＮを点線で示した。   The surface of the continuous separator S sent out from the nip roll 104 is heated by the roll heater 117 and the two bar heaters 118, the adhesive is melted, and the continuous separators S are bonded to each other. FIG. 2 shows the continuous separator S, the electrode plate PN (the positive plate 108 and the negative plate 109), and the bonding region. The electrode plate PN is disposed substantially at the center of the continuous separator S. The roll heater 117 is a cylindrical heater, and the outer peripheral surface of the cylinder travels in the adhesion region A in FIG. 2 in the traveling direction of the electrode plate PN. The adhesion area A is an area between the end of the continuous separator S around the electrode plate PN. In FIG. 2, the electrode plate PN housed in the bag-like region C is indicated by a dotted line.

次に、接着領域Ａが接着されると、２本の棒ヒータ１１８が下降し図２の接着領域Ｂを接着する。接着領域Ｂは連続セパレータＳの電極板ＰＮ毎の間隔の領域となっている。そして、２本の棒ヒータ１１８は、電極板ＰＮの間隔と同じ間隔で配置されている。これにより、連続セパレータＳの袋状領域Ｃが形成され、袋状領域Ｃの中に一枚づつ電極板ＰＮが収納されるようになる。また、タブ１１１は、袋状領域Ｃから外部に露出するように形成される。従って、電極板ＰＮの周囲が接着され電極板ＰＮの位置ズレや正極板１０８と負極板１０９のショートを防止できるようになる。   Next, when the bonding area A is bonded, the two bar heaters 118 are lowered to bond the bonding area B of FIG. The adhesion region B is a region having an interval for each electrode plate PN of the continuous separator S. The two bar heaters 118 are arranged at the same interval as the electrode plate PN. Thereby, the bag-shaped area | region C of the continuous separator S is formed, and the electrode plate PN comes to be accommodated in the bag-shaped area C one by one. The tab 111 is formed so as to be exposed from the bag-like region C to the outside. Therefore, the periphery of the electrode plate PN is adhered, and the positional deviation of the electrode plate PN and the short circuit between the positive electrode plate 108 and the negative electrode plate 109 can be prevented.

周囲が接着された電極板ＰＮは送りロール１１９に送られ、その後、スイング機構１２０のより積層部１０５に正極板１０８と負極板１０９が連続セパレータＳを介してジグザグ状に積み重ねられる。所定の厚さに積み重ねられると、スイング機構１２０の出口部に備えられているカッタによって連続セパレータＳが切断され、積層体である２次電池の製造が完了する。次に、積層部１０５に形成された２次電池が次工程に搬送される。なお、図２において積層部１０５内の積層状態を示すため、積層部１０５は１点鎖線にて示した。   The electrode plate PN to which the periphery is bonded is sent to the feed roll 119, and then the positive electrode plate 108 and the negative electrode plate 109 are stacked in a zigzag manner through the continuous separator S on the laminated portion 105 of the swing mechanism 120. When stacked to a predetermined thickness, the continuous separator S is cut by the cutter provided at the outlet of the swing mechanism 120, and the manufacture of the secondary battery as a stacked body is completed. Next, the secondary battery formed in the stacked unit 105 is transported to the next process. In FIG. 2, in order to show the stacked state in the stacked portion 105, the stacked portion 105 is indicated by a one-dot chain line.

このように、実施の形態１の２次電池製造装置は、正極板１０８と負極板１０９は袋状領域Ｃに収納されているので搬送時等に積層した位置からずれることがない。そのため、電極板ＰＮの位置ズレ、短絡事故による爆発、発火事故などを回避することができる。さらに、電極板の仕切りに用いられるセパレータが連続セパレータＳで構成されており、電極板ＰＮ毎に連続セパレータＳを折り込んで積層タイプの２次電池を構成することができるので、電極板の枚数に制限なく大容量の２次電池の製造に対応することができる。また、移載ハンド１１２で正極板１０８と負極板１０９を移載するので連続セパレータＳに精度よく配置し連続性の高い生産に効率よく対応できる。   Thus, in the secondary battery manufacturing apparatus of the first embodiment, since the positive electrode plate 108 and the negative electrode plate 109 are stored in the bag-like region C, they do not deviate from the stacked positions during transportation. Therefore, misalignment of the electrode plate PN, explosion due to a short circuit accident, ignition accident, etc. can be avoided. Further, the separator used for partitioning the electrode plates is composed of continuous separators S, and it is possible to construct a laminated type secondary battery by folding the continuous separators S for each electrode plate PN. It can cope with the production of a large capacity secondary battery without limitation. In addition, since the positive electrode plate 108 and the negative electrode plate 109 are transferred by the transfer hand 112, the transfer plate 112 can be placed on the continuous separator S with high accuracy and can efficiently cope with highly continuous production.

上記実施の形態１では、ロールヒータ１１７および２本の棒ヒータ１１８を用いて連続セパレータＳを加熱溶融して接着していたが、加熱溶融に限らず超音波溶接を用いることもできる。   In the first embodiment, the continuous separator S is heated and melted and bonded using the roll heater 117 and the two bar heaters 118. However, the welding is not limited to heating and melting, and ultrasonic welding can also be used.

＜実施の形態２＞
次に、本発明の実施の形態２について、図３を用いて説明する。図３の符号において実施の形態１と同じ構成部品については同じ符号を用いる。 <Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. In FIG. 3, the same reference numerals are used for the same components as those in the first embodiment.

図３に示す２次電池製造装置は、上セパレータ１００が送り出される上セパレータ巻出部１０２と、下セパレータ１０１が送り出される下セパレータ巻出部１０３と、送り出された上セパレータ１００および下セパレータ１０１を把持して所定の長さを引き出すニップロール１０４と、２次電池の積層部１０５と、ロール状の正極材１０６および負極材１０７と、枚葉状の正極板１０８および負極板１０９と、正極板１０８を搬送コンベア１１０上の下セパレータ１０１に載置する移載ハンド１１２と、載置された正極板１０８を搬送する搬送コンベア１１０と、負極板１０９の裏面に接着剤１２１を塗布する接着剤塗布ノズル１２２と、負極板１０９を接着剤１２１の塗布位置と接着剤１２１の塗布された負極板１０９を移載する移載ハンド１２３とを備えている。   The secondary battery manufacturing apparatus shown in FIG. 3 includes an upper separator unwinding portion 102 to which the upper separator 100 is fed, a lower separator unwinding portion 103 to which the lower separator 101 is fed, and the fed upper separator 100 and lower separator 101 to each other. A nip roll 104 that grips and pulls out a predetermined length, a laminated portion 105 of a secondary battery, a roll-shaped positive electrode material 106 and a negative electrode material 107, a sheet-like positive electrode plate 108 and a negative electrode plate 109, and a positive electrode plate 108 A transfer hand 112 placed on the lower separator 101 on the transport conveyor 110, a transport conveyor 110 that transports the placed positive plate 108, and an adhesive application nozzle 122 that applies an adhesive 121 to the back surface of the negative plate 109. And a transfer hand for transferring the negative electrode plate 109 to the application position of the adhesive 121 and the negative electrode plate 109 to which the adhesive 121 has been applied. And a 123.

正極板１０８と負極板１０９は、ロール状の正極材１０６および負極材１０７から引き出された電極板を、図示していない打ち抜き装置により所定の大きさに切断して形成される。なお、正極板１０８および負極板１０９にはタブ１１１が形成されるように所定の大きさに切断される。切断された正極板１０８は搬送コンベア１１０の横に設置された移載ハンド１１２の近傍に供給される。負極板１０９は、送りロール１１９の下方に設置された移載ハンド１２３の近傍に供給される。   The positive electrode plate 108 and the negative electrode plate 109 are formed by cutting the electrode plates drawn from the roll-shaped positive electrode material 106 and the negative electrode material 107 into a predetermined size by a punching device (not shown). The positive electrode plate 108 and the negative electrode plate 109 are cut into a predetermined size so that a tab 111 is formed. The cut positive electrode plate 108 is supplied to the vicinity of the transfer hand 112 installed beside the conveyor 110. The negative electrode plate 109 is supplied to the vicinity of the transfer hand 123 installed below the feed roll 119.

移載ハンド１１２はＺ軸回りに回転させる支持部１１３と、この支持部１１３に支持されたアーム１１４と、アームの先端側に取り付けられた正極板１０８を吸着する吸着部１１５とを備えている。移載ハンド１１２は、吸着部１１５を用いて正極板１０８を吸着し、正極板１０８を移載コンベア１１０上の下セパレータ１０１に所定の間隔で移載する様になっている。   The transfer hand 112 includes a support portion 113 that rotates around the Z axis, an arm 114 supported by the support portion 113, and a suction portion 115 that sucks the positive electrode plate 108 attached to the tip end side of the arm. . The transfer hand 112 sucks the positive electrode plate 108 using the suction unit 115, and transfers the positive electrode plate 108 to the lower separator 101 on the transfer conveyor 110 at a predetermined interval.

下セパレータ１０１は、ロール状の下セパレータ巻出部１０３より送り出され搬送コンベア１１０上を通り水平方向に移動した後、ニップロール１０４を経由して下降方向に移動し、積層部１０５に積層される。搬送コンベア１１０上において、正極板１０８が所定位置に配置されると、搬送コンベア１１０の端部に備えられているサポート部材１１６が待機位置から９０度旋回し、正極板１０８を押さえ、搬送中の位置ズレの防止を行うようになっている。なお、サポート部材１１６の待機位置側は、搬送コンベア１１０の進行方向と平行で正極板１０８の配置される位置に干渉しない位置とする。また、サポート部材１１６は、個々の正極板１０８を搬送コンベア１１０の進行方向に対して左右に少なくとも２カ所で支えることができるように、搬送コンベア１１０の端部に複数個が備えられている。搬送コンベア１１０は、正極板１０８の移載時は停止し、サポート部材１１６が動作するとニップロール１０４方向に所定の長さ移動し、間欠運転を行うようになっている。   The lower separator 101 is fed from a roll-shaped lower separator unwinding unit 103, moves in the horizontal direction through the conveyor 110, moves in the downward direction via the nip roll 104, and is stacked on the stacking unit 105. When the positive electrode plate 108 is placed at a predetermined position on the conveyor 110, the support member 116 provided at the end of the conveyor 110 is turned 90 degrees from the standby position, pressing the positive electrode 108, Misalignment is prevented. The standby position side of the support member 116 is a position that is parallel to the traveling direction of the transport conveyor 110 and does not interfere with the position where the positive electrode plate 108 is disposed. In addition, a plurality of support members 116 are provided at the end of the conveyor 110 so that each positive plate 108 can be supported at least at two locations on the left and right with respect to the traveling direction of the conveyor 110. The conveyor 110 is stopped when the positive electrode plate 108 is transferred, and when the support member 116 is operated, the conveyor 110 moves a predetermined length in the direction of the nip roll 104 to perform intermittent operation.

正極板１０８が搬送コンベア１１０により搬送され、ニップロール１０４に近づくと、サポート部材１１６が９０度旋回し待機位置側に戻る。そして、正極板１０８が、上セパレータ巻出部１０２から送り出された上セパレータ１００と、下セパレータ１０１に挟み込まれた状態でニップロール１０４に挟み込まれて重ねられるようになっている。以後、ニップロール１０４から送り出された上セパレータ１００および下セパレータ１０１を連続セパレータＳと呼ぶ。   When the positive plate 108 is transported by the transport conveyor 110 and approaches the nip roll 104, the support member 116 turns 90 degrees and returns to the standby position side. The positive electrode plate 108 is sandwiched between the upper separator 100 fed from the upper separator unwinding section 102 and the nip roll 104 while being sandwiched between the lower separators 101. Hereinafter, the upper separator 100 and the lower separator 101 sent out from the nip roll 104 are referred to as a continuous separator S.

ニップロール１０４から送り出された連続セパレータＳは、ロールヒータ１１７および２本の棒ヒータ１１８によって表面が加熱され接着剤が溶融し連続セパレータＳ同士が接着される。実施の形態１と同様に、ロールヒータ１１７が接着領域Ａを加熱し溶着し、２本の棒ヒータ１１８が連続セパレータＳの接着領域Ｂを加熱し溶着する。これにより、連続セパレータＳに袋状領域Ｃが形成され、袋状領域Ｃの中に一枚づつ正極板１０８が収納されるようになる。また、タブ１１１は、袋状領域Ｃから外部に露出するように形成される。なお、図３において、袋状領域Ｃの中に収納された正極板１０８を点線で示した。   The surface of the continuous separator S sent out from the nip roll 104 is heated by the roll heater 117 and the two bar heaters 118, the adhesive is melted, and the continuous separators S are bonded to each other. As in the first embodiment, the roll heater 117 heats and welds the bonding area A, and the two bar heaters 118 heat and bond the bonding area B of the continuous separator S. Thereby, the bag-like region C is formed in the continuous separator S, and the positive plates 108 are accommodated one by one in the bag-like region C. The tab 111 is formed so as to be exposed from the bag-like region C to the outside. In FIG. 3, the positive electrode plate 108 accommodated in the bag-like region C is indicated by a dotted line.

周囲が接着された連続セパレータＳは送りロール１１９に送られ、積層部１０５側に下降する。次に、送りロール１１９の下方に供給された負極板１０９が、移載ハンド１２３により、連続セパレータＳの左右に配置される。次に、負極板１０９の下面に、接着剤塗布ノズル１２２より接着剤１２１が塗布される。接着剤塗布ノズル１２２は負極板１０９の下方に備えられており、負極板１０９が連続セパレータＳの左右に配置される毎に上昇し接着剤１２１の塗布を行った後、下降し次の負極板１０９の配置を待機するようになっている。接着剤塗布ノズル１２２は、下降している連続セパレータＳの両側に備えられている。次に、移載ハンド１２３が、連続セパレータＳの外周面で正極板１０８の表面および裏面に連続セパレータＳを介して負極板１０９を貼り付ける。これにより、負極板１０９、連続セパレータＳ、正極板１０８、連続セパレータＳ、負極板１０９の順に重ねられることになる。負極板１０９の貼付は、正極板１０８の一つ飛び毎に行われる。（正極板１０８に対して両側に負極板１０９を貼り付けた後、次に送られた正極板１０８の両側には負極板１０９を貼り付けずに、その次の正極板１０８の両側に負極板１０９を貼り付ける。）なお、図３において、接着剤１２１の負極板１０９の裏面への塗布状態を点線にて示した。   The continuous separator S to which the periphery is bonded is sent to the feed roll 119 and descends to the laminated portion 105 side. Next, the negative electrode plate 109 supplied below the feed roll 119 is placed on the left and right of the continuous separator S by the transfer hand 123. Next, the adhesive 121 is applied to the lower surface of the negative electrode plate 109 from the adhesive application nozzle 122. The adhesive application nozzle 122 is provided below the negative electrode plate 109. The negative electrode plate 109 is raised whenever the negative electrode plate 109 is arranged on the left and right sides of the continuous separator S, and after applying the adhesive 121, it is lowered and the next negative electrode plate is lowered. 109 is placed on standby. The adhesive application nozzle 122 is provided on both sides of the descending continuous separator S. Next, the transfer hand 123 affixes the negative electrode plate 109 to the front and back surfaces of the positive electrode plate 108 on the outer peripheral surface of the continuous separator S via the continuous separator S. Thereby, the negative electrode plate 109, the continuous separator S, the positive electrode plate 108, the continuous separator S, and the negative electrode plate 109 are stacked in this order. The attachment of the negative electrode plate 109 is performed for each jump of the positive electrode plate 108. (After attaching the negative electrode plate 109 to both sides of the positive electrode plate 108, the negative electrode plate 109 is not attached to both sides of the positive electrode plate 108 sent next, and the negative electrode plate is applied to both sides of the next positive electrode plate 108. 109.) In FIG. 3, the application state of the adhesive 121 to the back surface of the negative electrode plate 109 is indicated by a dotted line.

次に、重ねられた正極板１０８および負極板１０９が、スイング機構１２０のより積層部１０５に連続セパレータＳを介してジグザグ状に積み重ねられる。所定の厚さに積み重ねられると、スイング機構１２０の出口部に備えられているカッタによって上セパレータ１００および下セパレータ１０１が切断され、積層体である２次電池の製造が完了する。次に、積層部１０５に形成された２次電池が次工程に搬送される。なお、図３において積層部１０５内の積層状態を示すため、積層部１０５は１点鎖線にて示した。   Next, the stacked positive electrode plate 108 and negative electrode plate 109 are stacked in a zigzag manner on the stacked portion 105 of the swing mechanism 120 via the continuous separator S. When stacked to a predetermined thickness, the upper separator 100 and the lower separator 101 are cut by the cutter provided at the outlet of the swing mechanism 120, and the manufacture of the secondary battery as a stacked body is completed. Next, the secondary battery formed in the stacked unit 105 is transported to the next process. Note that in FIG. 3, the laminated portion 105 is indicated by a one-dot chain line in order to show a laminated state in the laminated portion 105.

このように、実施の形態２の２次電池製造装置は、正極板１０８が袋状領域Ｃに収納されているので搬送時等に積層した位置からずれることがない。また、正極板１０８と負極板１０９が一枚の連続セパレータＳで仕切られているので、コンパクトに２次電池を形成することができる。また、シート状の連続セパレータＳで連続的に積層することが出来るので大容量の２次電池の製造に対応することが出来る。さらに、接着剤１２１を用いて負極板１０９を連続セパレータＳに貼り付けているので、正極板１０８と負極板１０９の両方の周囲を連続セパレータＳで接着しなくても正極板１０８のみの周囲の連続セパレータＳを接着するだけで効率よく２次電池を製造することができる。なお、実施の形態２において、正極板１０８と負極板１０９の配置を逆にしても同様の効果が得られる。   Thus, in the secondary battery manufacturing apparatus according to the second embodiment, since the positive electrode plate 108 is stored in the bag-like region C, the secondary battery manufacturing apparatus does not deviate from the stacked position during transportation. Further, since the positive electrode plate 108 and the negative electrode plate 109 are partitioned by one continuous separator S, a secondary battery can be formed in a compact manner. Moreover, since it can laminate | stack continuously with the sheet-like continuous separator S, it can respond to manufacture of a high capacity | capacitance secondary battery. Further, since the negative electrode plate 109 is attached to the continuous separator S using the adhesive 121, the periphery of only the positive electrode plate 108 can be obtained without bonding the periphery of both the positive electrode plate 108 and the negative electrode plate 109 with the continuous separator S. A secondary battery can be manufactured efficiently simply by adhering the continuous separator S. In the second embodiment, the same effect can be obtained even if the arrangement of the positive electrode plate 108 and the negative electrode plate 109 is reversed.

本発明の第１の実施の形態に係る２次電池製造装置の各要部の配置を示す概略斜視図である。It is a schematic perspective view which shows arrangement | positioning of each principal part of the secondary battery manufacturing apparatus which concerns on the 1st Embodiment of this invention. 連続セパレータの接着領域と電極板の位置を示す平面図である。It is a top view which shows the adhesion area | region of a continuous separator, and the position of an electrode plate. 本発明の第２の実施の形態に係る２次電池製造装置の各要部の配置を示す概略斜視図である。It is a schematic perspective view which shows arrangement | positioning of each principal part of the secondary battery manufacturing apparatus which concerns on the 2nd Embodiment of this invention. 従来の２次電池製造装置の各要部の配置を示す概略斜視図である。It is a schematic perspective view which shows arrangement | positioning of each principal part of the conventional secondary battery manufacturing apparatus.

符号の説明Explanation of symbols

１ セパレータ供給部
１１ グリップチャック
３０ 正極板供給機構
３１ 負極板供給機構
４５ 回転チャック機構
１００ 上セパレータ
１０１ 下セパレータ
１０２ 上セパレータ巻出部
１０３ 下セパレータ巻出部
１０４ ニップロール
１０６ 正極材
１０７ 負極材
１０８ 正極板
１０９ 負極板
１１０ 搬送コンベア
１１２ 移載ハンド
１１４ アーム
１１６ サポート部材
１１７ ロールヒータ
１１８ 棒ヒータ
１１９ 送りロール
１２０ スイング機構
１２１ 接着剤
１２２ 塗布ノズル
１２３ 移載ハンド
Ｓ 連続セパレータ
ＰＮ 電極板 DESCRIPTION OF SYMBOLS 1 Separator supply part 11 Grip chuck 30 Positive electrode plate supply mechanism 31 Negative electrode plate supply mechanism 45 Rotary chuck mechanism 100 Upper separator 101 Lower separator 102 Upper separator unwinding part 103 Lower separator unwinding part 104 Nip roll 106 Positive electrode material 107 Negative electrode material 108 Positive electrode plate 109 Negative electrode 110 Conveyor 112 Transfer hand 114 Arm 116 Support member 117 Roll heater 118 Bar heater 119 Feed roll 120 Swing mechanism 121 Adhesive 122 Coating nozzle 123 Transfer hand S Continuous separator PN Electrode plate

Claims (6)

電極板の仕切りに用いられる連続セパレータに、複数の正極板と負極板から構成される電極板を電極板毎に所定の間隔を保持し、前記電極板に設けられたタブが前記連続セパレータの外側になるように配置し、
他方の電極板の仕切りに用いられる連続セパレータを、前記電極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を
加熱溶融により貼り合わせて接着し、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納することを特徴とする２次電池製造方法。 An electrode plate composed of a plurality of positive and negative electrode plates is maintained at a predetermined interval for each electrode plate, and a tab provided on the electrode plate is arranged outside the continuous separator. Arrange to be
Superimposing the continuous separator used for partitioning the other electrode plate on the continuous separator on which the electrode plate is arranged,
The continuous separators around the electrode plates are bonded together by heating and melting,
A method for producing a secondary battery, wherein the positive electrode plate and the negative electrode plate are housed in a stacked form such that the positive electrode plate and the negative electrode plate are alternately overlapped via a continuous separator. 前記電極板が正極板と負極板であり、前記連続セパレータに正極板と負極板を所定の間隔で交互に配置し、
他方の前記連続セパレータを前記電極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を加熱溶融により貼り合わせて、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納する、請求項１に記載の２次電池製造方法。 The electrode plate is a positive electrode plate and a negative electrode plate, the positive electrode plate and the negative electrode plate are alternately arranged at a predetermined interval on the continuous separator,
The other continuous separator is overlaid on the continuous separator on which the electrode plate is disposed,
Bonding the continuous separators around the electrode plate by heat melting,
The secondary battery manufacturing method according to claim 1, wherein the positive electrode plate and the negative electrode plate are housed in a stacked form so as to alternately overlap with each other via a continuous separator. 前記電極板が正極板であり、前記連続セパレータに正極板を所定の間隔を保持して配置し、
他方の前記連続セパレータを前記正極板が配置された連続セパレータに重ね合わせて、
前記電極板の周囲の連続セパレータ同士を加熱溶融により貼り合わせて、
裏面に接着剤の塗布された負極板を前記連続セパレータの外周面で正極板の表面および裏面に前記連続セパレータを介して貼り付けて、
正極板と負極板が連続セパレータを介して交互に重なり合うように積層状に収納する、請求項１に記載の２次電池製造方法。 The electrode plate is a positive electrode plate, and the positive electrode plate is disposed at a predetermined interval on the continuous separator,
The other continuous separator is overlaid on the continuous separator on which the positive electrode plate is disposed,
Bonding the continuous separators around the electrode plate by heat melting,
A negative electrode plate coated with an adhesive on the back surface is attached to the front and back surfaces of the positive electrode plate on the outer peripheral surface of the continuous separator via the continuous separator,
The secondary battery manufacturing method according to claim 1, wherein the positive electrode plate and the negative electrode plate are housed in a stacked form so as to alternately overlap with each other via a continuous separator. 電極板を挟み込む電極板の下側の連続セパレータと、電極板の上側に位置する他方の連続セパレータと、
電極板に設けられたタブを連続セパレータの外側になるように配置する移載ハンドと、
連続セパレータと電極板と他方の連続セパレータとを重ね合わせるニップロールと、
ニップロールから送り出された連続セパレータの端部と電極板毎の間隙を加熱溶融させるヒータと、
連続セパレータのヒータによる加熱溶融と、連続セパレータへの電極板の配置とを連動させて連続セパレータを間欠移動させる搬送コンベアと、
電極板毎に周囲が張り合わされた連続セパレータを正極板と負極板が前記連続セパレータを介して交互に重なり合うように折り込むスイング機構と、
折り込まれた連続セパレータを積層状に収納する収納箱とからなる２次電池製造装置。 A continuous separator on the lower side of the electrode plate sandwiching the electrode plate, the other continuous separator located on the upper side of the electrode plate,
A transfer hand that arranges tabs provided on the electrode plate to be outside the continuous separator;
A nip roll for superimposing the continuous separator, the electrode plate and the other continuous separator;
A heater for heating and melting the end of the continuous separator fed from the nip roll and the gap for each electrode plate;
A transport conveyor that intermittently moves the continuous separator in conjunction with the heating and melting by the heater of the continuous separator and the arrangement of the electrode plate on the continuous separator;
A swing mechanism that folds a continuous separator whose periphery is bonded to each electrode plate so that a positive electrode plate and a negative electrode plate alternately overlap with each other through the continuous separator;
A secondary battery manufacturing apparatus comprising a storage box for storing a folded continuous separator in a laminated form. 前記電極板が正極板と負極板であり、前記連続セパレータに正極板と負極板を所定の間隔で交互に配置する移載ハンドを備える、請求項４に記載の２次電池製造装置。 The secondary battery manufacturing apparatus according to claim 4, wherein the electrode plate is a positive electrode plate and a negative electrode plate, and the transfer separator includes a transfer hand that alternately arranges the positive electrode plate and the negative electrode plate at a predetermined interval. 前記電極板が正極板であり、前記連続セパレータに正極板を所定の間隔を保持して配置する移載ハンドと、
他方の電極板である負極板の裏面に接着剤を塗布する接着剤塗布ノズルと、
正極板の周囲が接着された連続セパレータの正極板に対向する位置に負極板を貼り付ける他方の移載ハンドとを備える、請求項４に記載の２次電池製造装置。 The electrode plate is a positive electrode plate, and a transfer hand that arranges the positive electrode plate at a predetermined interval on the continuous separator;
An adhesive application nozzle for applying an adhesive to the back surface of the negative electrode plate which is the other electrode plate;
The secondary battery manufacturing apparatus of Claim 4 provided with the other transfer hand which affixes a negative electrode plate in the position facing the positive electrode plate of the continuous separator to which the circumference | surroundings of the positive electrode plate were adhere | attached.
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