JP2012252925A - Battery and manufacturing device thereof - Google Patents

Battery and manufacturing device thereof Download PDF

Info

Publication number
JP2012252925A
JP2012252925A JP2011125718A JP2011125718A JP2012252925A JP 2012252925 A JP2012252925 A JP 2012252925A JP 2011125718 A JP2011125718 A JP 2011125718A JP 2011125718 A JP2011125718 A JP 2011125718A JP 2012252925 A JP2012252925 A JP 2012252925A
Authority
JP
Japan
Prior art keywords
sheet
electrode
separator
roll
electrode sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2011125718A
Other languages
Japanese (ja)
Other versions
JP5668607B2 (en
Inventor
Kengo Matsuo
研吾 松尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP2011125718A priority Critical patent/JP5668607B2/en
Publication of JP2012252925A publication Critical patent/JP2012252925A/en
Application granted granted Critical
Publication of JP5668607B2 publication Critical patent/JP5668607B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Cell Separators (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To inhibit damage of a separator sheet due to burrs of an electrode sheet with less labor and ensure a degree of freedom of an outer edge shape of the electrode sheet in a battery formed by laminating the electrode sheets of positive/negative electrodes and the separator sheet sandwiched therebetween and a battery manufacturing device.SOLUTION: A frame-like sheet reinforcing part 17 is formed at a portion countering to an outer edge part 13 of an electrode sheet 1 on a top face 21 of a separator sheet, and a burr 14 which protrudes in a thickness direction from the outer edge part 13 of the electrode 1 pierces in the sheet reinforcing part 17 so as to be engaged therewith. The sheet reinforcing part 17 is formed by transferring a reinforcing resin to a separator web by a dispense roll.

Description

本発明は、正負極の電極シートとこれらに挟まれるセパレータシートとを複数積層してなる電池及びその製造装置に関する。   The present invention relates to a battery formed by laminating a plurality of positive and negative electrode sheets and separator sheets sandwiched between them, and an apparatus for manufacturing the same.

従来、上記電池において、電極シート外縁の切断時に生じるバリがセパレータシートを突き破りショートを起こすことを防止するために、例えば特許文献１では、電極シートのバリをパルス電流で溶断除去するようにしている。その他にも、各種のバリ取り手段を採用したりバリ自体の大きさを抑えたりする方法が考案されている。
一方、例えば特許文献２では、セパレータシートの外縁部を折り返して二層構造の強化部とし、この強化部に電極シートのバリを接触させるようにしている。 Conventionally, in the battery described above, in order to prevent a burr generated when cutting the outer edge of the electrode sheet from breaking through the separator sheet and causing a short circuit, for example, in Patent Document 1, the burr on the electrode sheet is blown and removed by a pulse current. . In addition, various methods have been devised that employ various deburring means or reduce the size of the burrs themselves.
On the other hand, for example, in Patent Document 2, the outer edge portion of the separator sheet is folded to form a reinforced portion having a two-layer structure, and the burrs of the electrode sheet are brought into contact with the reinforced portion.

特許第３７４１３３４号公報Japanese Patent No. 3741334 特開２００１−２８３８９７号公報Japanese Patent Laid-Open No. 2001-282897

ところで、電極シートを所定形状に切り出す際、それがせん断による場合は特に、バリの発生を抑えることはできてもゼロにすることは原理的に不可能である。そして、切断後にバリを完全に除去するには多大な労力が必要である。
一方、セパレータシートの外縁部を折り返して二重構造の強化部を形成する場合、この強化部の形成自由度が低く、強化部の形成が困難になったり電極シートの外縁形状に制約を生じさせたりするという問題がある。 By the way, when the electrode sheet is cut into a predetermined shape, especially when it is caused by shearing, it is impossible in principle to make it zero even though the generation of burrs can be suppressed. A great amount of labor is required to completely remove burrs after cutting.
On the other hand, when the outer edge portion of the separator sheet is folded to form a double-structured reinforced portion, the degree of freedom in forming the reinforced portion is low, making it difficult to form the reinforced portion or causing restrictions on the outer edge shape of the electrode sheet. There is a problem that.

本発明は上記問題点に鑑みてなされたもので、正負極の電極シートとこれらに挟まれるセパレータシートとを複数積層してなる電池及びその製造装置において、少ない労力で電極シートのバリによるセパレータシートの損傷を抑止し、かつ電極シートの外縁形状の自由度を確保することを目的とする。   SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a battery formed by stacking a plurality of positive and negative electrode sheets and a separator sheet sandwiched between them, and a manufacturing apparatus therefor, a separator sheet by burr of an electrode sheet with little effort The purpose is to prevent the damage of the electrode sheet and to secure the degree of freedom of the outer edge shape of the electrode sheet.

上記課題の解決手段として、本発明は、所定形状に切断した電極シートとセパレータシートとを重ね合わせて電極シート組体とし、この電極シート組体を正負極で交互に複数積層してなる電池であって、前記セパレータシートの一側面における前記電極シートの外縁部と対向する部分に枠状のシート強化部を形成し、このシート強化部に前記電極シートの外縁部からシート厚さ方向で突出するバリを突き刺して係合させることを特徴とする。   As a means for solving the above problems, the present invention provides a battery in which an electrode sheet and a separator sheet cut into a predetermined shape are overlapped to form an electrode sheet assembly, and a plurality of electrode sheet assemblies are alternately stacked with positive and negative electrodes. A frame-shaped sheet reinforcing portion is formed on a portion of one side surface of the separator sheet facing the outer edge portion of the electrode sheet, and the sheet reinforcing portion protrudes from the outer edge portion of the electrode sheet in the sheet thickness direction. It is characterized by piercing and engaging a burr.

また、本発明は、前記バリの前記シート強化部に対する係合力により、前記電極シートと前記セパレータシートとを一体的に結合することを特徴とする。   Further, the present invention is characterized in that the electrode sheet and the separator sheet are integrally coupled by an engaging force of the burr to the sheet reinforcing portion.

また、本発明は、前記セパレータシートにおける前記電極シートと反対側の他側面又は前記シート強化部よりも前記他側面側の部位に、前記シート強化部よりも硬質の第二シート強化部を設けることを特徴とする。   Moreover, this invention provides the 2nd sheet | seat reinforcement | strengthening part harder than the said sheet | seat reinforcement | strengthening part in the site | part of the said other side side rather than the other side surface or the said sheet | seat reinforcement | strengthening part on the said separator sheet. It is characterized by.

また、本発明は、所定形状に切断した電極シートとセパレータシートとを重ね合わせて電極シート組体とし、この電極シート組体を正負極で交互に複数積層してなる電池の製造装置であって、帯状の電極原反を巻回した電極ロールと、この電極ロールから前記電極原反を工程下流側に巻き出す電極巻き出しロールと、この電極巻き出しロールが巻き出した前記電極原反から所定形状の前記電極シートを切り出す電極カッターロールと、この電極カッターロールが切り出した前記電極シートを前記セパレータシートとの結合位置に案内する電極ガイドと、を備え、帯状のセパレータ原反を巻回したセパレータロールと、このセパレータロールから前記セパレータ原反を工程下流側に巻き出すセパレータ巻き出しロールと、このセパレータ巻き出しロールが巻き出した前記セパレータ原反の一側面に液状の補強樹脂を前記電極シートの外縁形状に沿う枠状に転写するディスペンスロールと、このディスペンスロールが転写した補強樹脂を硬化させてシート強化部を形成する樹脂硬化装置と、前記シート強化部を形成したセパレータ原反における前記シート強化部の状態を検査する検査装置と、を備え、前記電極シートをその外縁部が前記シート強化部に対向するように前記シート強化部が形成されたセパレータ原反に重ね合わせると共にこれらを互いに押し付けて一体的に結合するプレスロールと、前記電極シートが結合されたセパレータ原反の表裏を反転させる反転機構と、前記電極シートが結合されたセパレータ原反の表裏面の状態を検査する両面検査装置と、前記電極シートが結合されたセパレータ原反を前記電極シート組体毎に切断するカッターロールと、このカッターロールが切断した前記電極シート組体を工程下流側に送り出す送り出しロールと、この送り出しロールが送り出した前記電極シート組体を受け取るトレイと、を備えることを特徴とする。   Further, the present invention is a battery manufacturing apparatus in which an electrode sheet and a separator sheet cut into a predetermined shape are overlapped to form an electrode sheet assembly, and a plurality of electrode sheet assemblies are alternately stacked with positive and negative electrodes. , An electrode roll wound with a strip-shaped electrode original fabric, an electrode unwinding roll for unwinding the electrode original fabric from the electrode roll to the downstream side of the process, and the electrode original fabric unrolled by the electrode unwinding roll. An electrode cutter roll that cuts out the electrode sheet having a shape, and an electrode guide that guides the electrode sheet cut out by the electrode cutter roll to a coupling position with the separator sheet, and a separator wound with a strip-shaped separator original A separator, a separator unwinding roll for unwinding the separator raw material from the separator roll to the downstream side of the process, and this separator unwinding A dispense roll that transfers a liquid reinforcing resin in a frame shape along the outer edge shape of the electrode sheet on one side of the separator roll from which the roll is unwound, and a sheet reinforcing portion that cures the reinforcing resin transferred by the dispense roll And an inspection device for inspecting the state of the sheet reinforcing portion in the separator raw material on which the sheet reinforcing portion is formed, and the outer edge portion of the electrode sheet faces the sheet reinforcing portion. A press roll that overlaps the separator original fabric on which the sheet reinforcing portion is formed and presses them together to integrally couple, and a reversing mechanism that reverses the front and back of the separator original fabric to which the electrode sheet is coupled, A double-sided inspection device that inspects the state of the front and back surfaces of the separator web to which the electrode sheet is bonded, and the electrode sheet Cutter roll that cuts the separator raw material that has been cut for each electrode sheet assembly, a feed roll that feeds the electrode sheet assembly cut by the cutter roll to the downstream side of the process, and the electrode sheet assembly that the feed roll sends out And a tray for receiving a body.

本発明の電池よれば、セパレータシートにおける電極シート外縁のバリが当たる部位（電極シート外縁に沿う部位）に、予め所定幅の枠状のシート強化部を形成し、このシート強化部に電極シートのバリを突き刺すことで、電極シートのバリがセパレータシートを突き破ることを抑止できる。
また、電極シート外縁のバリをセパレータシートのシート強化部に突き刺して係合させることで、このバリを介して電極シートとセパレータシートとを一体的に結合することが可能となり、これらを別途接着剤等を用いて結合する場合と比べて、電極シート及びセパレータシートの結合作業を容易にできる。
さらに、シート強化部は電極シートの外縁形状に合わせて自由に形成できるので、従来の如くセパレータシートの外縁部を折り込んで強化部を形成するような場合と比べて、電極シート外縁に沿うシート強化部の形状自由度を確保できる。
さらにまた、バリをシート強化部に突き刺すことによる電極シート及びセパレータシートの一体的な結合を可能としながら、電極シートのバリがセパレータシートを突き破ることをより確実に抑止できる。 According to the battery of the present invention, a frame-shaped sheet reinforcing portion having a predetermined width is formed in advance on a portion of the separator sheet where the burr on the outer edge of the electrode sheet hits (a portion along the outer edge of the electrode sheet). By piercing the burr, it is possible to prevent the burr of the electrode sheet from breaking through the separator sheet.
In addition, the electrode sheet outer edge burr is stabbed into and engaged with the sheet reinforcing portion of the separator sheet, so that the electrode sheet and the separator sheet can be integrally bonded via the burr, and these are separately bonded with an adhesive. Compared with the case where it couple | bonds using etc., the coupling | bonding operation | work of an electrode sheet and a separator sheet can be made easy.
Furthermore, since the sheet reinforcement part can be freely formed according to the outer edge shape of the electrode sheet, the sheet reinforcement along the outer edge of the electrode sheet is formed as compared with the conventional case where the outer edge part of the separator sheet is folded to form the reinforcement part. The degree of freedom of shape of the part can be secured.
Furthermore, it is possible to more reliably prevent the burrs of the electrode sheet from breaking through the separator sheet while allowing the electrode sheet and the separator sheet to be integrally coupled by piercing the burrs into the sheet reinforcing portion.

また、本発明の電池の製造装置によれば、連続するセパレータ原反に対し、電極シートの外縁形状に沿う枠状の補強樹脂をディスペンスロールにより素早く連続して転写することが可能となり、多数の電極シート組体を正確かつ容易に製作できる。また、トレイを除く各構成を正負極毎に設け、正負極の電極シート組体を交互にトレイに投入することで、正負電極を交互に積層した積層体をトレイ内で構成できる。   Further, according to the battery manufacturing apparatus of the present invention, it becomes possible to quickly and continuously transfer the frame-shaped reinforcing resin along the outer edge shape of the electrode sheet to the continuous separator raw material by the dispense roll. The electrode sheet assembly can be manufactured accurately and easily. Further, by providing each configuration excluding the tray for each positive and negative electrode, and alternately putting positive and negative electrode sheet assemblies into the tray, a laminate in which positive and negative electrodes are alternately stacked can be configured in the tray.

本発明の実施形態における電極原反から電極シートを切り出す工程の平面図である。It is a top view of the process of cutting out an electrode sheet from the electrode original fabric in the embodiment of the present invention. 本発明の実施形態におけるセパレータ原反からセパレータシートを切り出す工程の平面図である。It is a top view of the process of cutting out a separator sheet from a separator original fabric in an embodiment of the present invention. 本発明の実施形態におけるセパレータシートに電極シートを結合する工程の断面図であり、（ａ）は各シートの結合直前を、（ｂ）は各シートの結合時をそれぞれ示す。It is sectional drawing of the process of couple | bonding an electrode sheet | seat with the separator sheet in embodiment of this invention, (a) shows just before the coupling | bonding of each sheet | seat, (b) shows the time of coupling | bonding of each sheet | seat. 本発明の実施形態におけるセパレータシートの強化部の変形例を示す断面図である。It is sectional drawing which shows the modification of the reinforcement part of the separator sheet in embodiment of this invention. 本発明の実施形態における電池の製造装置の構成図である。It is a block diagram of the manufacturing apparatus of the battery in embodiment of this invention.

以下、本発明の実施形態について図面を参照して説明する。
図１は、例えばパック型の二次電池における電極シート１を、電極ロール１０より巻き出した電極原反１１から切り出す工程の概略を示す平面図であり、図２は、前記電極シート１と交互に積層されるセパレータシート２を、セパレータロール１５より巻き出したセパレータ原反１６から、電極シート１を結合した状態で切り出す工程の概略を示す平面図である。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view showing an outline of a process of cutting out an electrode sheet 1 in, for example, a pack-type secondary battery from an electrode raw fabric 11 unwound from an electrode roll 10, and FIG. FIG. 2 is a plan view showing an outline of a process of cutting the separator sheet 2 laminated on the separator sheet 16 unwound from the separator roll 15 in a state where the electrode sheet 1 is bonded.

図１に示すように、電極原反１１は、電極芯材に活物質粉末を塗布・乾燥処理により固着させてなる。この電極原反１１を所定長さ毎にカットすると共に、例えば一側辺を適宜切り欠くことで、電力を入出力する接続端子（タブ）１２を突設した矩形状の電極シート１が形成される。   As shown in FIG. 1, the electrode fabric 11 is formed by fixing an active material powder to an electrode core material by applying and drying treatment. The electrode sheet 11 is cut into predetermined lengths, and a rectangular electrode sheet 1 is formed with protruding connection terminals (tabs) 12 for inputting and outputting power by, for example, appropriately cutting out one side. The

一方、セパレータ原反１６は、イオンを移動可能な例えば多孔質の絶縁フィルム（ポーラスシート）からなる。
図２に示すように、セパレータ原反１６の所定長さ毎（セパレータシート２毎）に、電極シート１の外縁形状に対応するシート強化部１７を形成して強化セパレータ原反１８とし、その後に前記所定形状の電極シート１を一体的に結合して電極付きセパレータ原反１９とし、これを所定長さ毎にカットすることで、所定形状の電極シート１及びセパレータシート２を一体的に結合した電極シート組体３を製作する。 On the other hand, the separator raw 16 is made of, for example, a porous insulating film (porous sheet) capable of moving ions.
As shown in FIG. 2, a sheet reinforcing portion 17 corresponding to the outer edge shape of the electrode sheet 1 is formed for each predetermined length of the separator raw fabric 16 (every separator sheet 2) to form a reinforced separator raw fabric 18, and thereafter The electrode sheet 1 having a predetermined shape is integrally bonded to form a separator raw film 19 with an electrode, and the electrode sheet 1 and the separator sheet 2 having a predetermined shape are integrally bonded by cutting the electrode sheet 1 every predetermined length. The electrode sheet assembly 3 is manufactured.

なお、例えば前記接続端子１２の位置を変更することで、正負極用の電極シート１及びセパレータシート２がそれぞれ形成され、かつこれらを正負極毎にそれぞれ一体的に結合することで、正負極用の電極シート組体３がそれぞれ形成される。   For example, by changing the position of the connection terminal 12, the positive and negative electrode sheets 1 and the separator sheet 2 are formed respectively, and these are integrally coupled for each positive and negative electrode, so Each of the electrode sheet assemblies 3 is formed.

そして、正負極用の電極シート組体３を交互に積層して適宜パックすることで、出荷単位の二次電池が組み立てられる。組み立て後の二次電池は活性化工程に移送され、充電・放電・室温放置エージング及び高温放置エージング等を繰り返した後に出荷に至る。   And the secondary battery of a shipment unit is assembled by laminating | stacking the electrode sheet assembly 3 for positive and negative electrodes alternately, and packing suitably. The assembled secondary battery is transferred to the activation process, and after being repeatedly charged / discharged / aging at room temperature, aging at high temperature, etc., it is shipped.

ここで、図３に示すように、電極シート１の外縁部１３にバリ取り加工を施さない場合、外縁部１３には、その厚さ方向で起立（突出）するバリ１４が残存する。このバリ１４は、セパレータシート２を突き破って正負極の電極シート１間を短絡させる虞がある。
そこで、本実施形態では、電極シート組体３毎に、電極シート１のバリ１４をセパレータシート２に向けると共に、セパレータシート２の上面２１（電極シート１との合わせ面）における電極シート１の外縁部１３と対向する部位に、電極シート１の外縁形状に沿って所定幅で延びる枠状のシート強化部１７を設けている。 Here, as shown in FIG. 3, when the deburring process is not performed on the outer edge portion 13 of the electrode sheet 1, the burr 14 standing (projecting) in the thickness direction remains on the outer edge portion 13. The burr 14 may break through the separator sheet 2 and short-circuit between the positive and negative electrode sheets 1.
Therefore, in this embodiment, for each electrode sheet assembly 3, the burr 14 of the electrode sheet 1 is directed to the separator sheet 2, and the outer edge of the electrode sheet 1 on the upper surface 21 (the mating surface with the electrode sheet 1) of the separator sheet 2 A frame-shaped sheet reinforcing portion 17 extending at a predetermined width along the outer edge shape of the electrode sheet 1 is provided at a portion facing the portion 13.

シート強化部１７は、例えばセパレータシート２（セパレータ原反１６）の上面２１に液状の補強樹脂を前記枠状に塗布してこれを硬化させてなる（図２参照）。前記樹脂としては、光硬化性樹脂、熱硬化性樹脂及び乾燥硬化性樹脂等が考えられる。   The sheet reinforcing part 17 is formed, for example, by applying a liquid reinforcing resin in the form of a frame to the upper surface 21 of the separator sheet 2 (separator raw 16) (see FIG. 2). Examples of the resin include a photocurable resin, a thermosetting resin, and a dry curable resin.

シート強化部１７は、例えばセパレータ原反１６の上面２１に溝２３を形成して補強樹脂を流入、硬化させてなる。
なお、図４に示すように、セパレータシート２に補強樹脂を染み込ませて硬化させたものをシート強化部１７としてもよい。この構成は、セパレータシート２がポーラスシートではなく不織布であるときに好適である。
また、補強樹脂は接着剤であってもよく、この場合、補強樹脂に粘着性を残しておき、これを電極シート１との結合に利用してもよい。 The sheet reinforcing portion 17 is formed, for example, by forming a groove 23 on the upper surface 21 of the separator raw fabric 16 to flow in and harden the reinforcing resin.
In addition, as shown in FIG. 4, it is good also as what the sheet | seat reinforcement | strengthening resin impregnated the separator sheet 2 and hardened | cured it. This configuration is suitable when the separator sheet 2 is not a porous sheet but a nonwoven fabric.
Further, the reinforcing resin may be an adhesive. In this case, the reinforcing resin may be left sticky and used for bonding with the electrode sheet 1.

図２，３に示すように、セパレータシート２は電極シート１よりも大判であり、セパレータシート２の外縁から所定幅だけ内周方に入った部位にシート強化部１７が形成される。シート強化部１７の内周方における補強樹脂を塗布しない領域は、二次電池における電解液を流動可能な有効領域２４とされる。有効領域２４は、補強樹脂の塗布により精度良く画定されるため、電極シート組体３毎の性能のバラツキが抑えられて長寿命化を期待できる。なお、シート強化部１７がセパレータシート２の外縁まで至る構成であってもよい。   As shown in FIGS. 2 and 3, the separator sheet 2 is larger than the electrode sheet 1, and the sheet reinforcing portion 17 is formed at a site that enters the inner circumference by a predetermined width from the outer edge of the separator sheet 2. A region where the reinforcing resin is not applied on the inner periphery of the sheet reinforcing portion 17 is an effective region 24 in which the electrolytic solution in the secondary battery can flow. Since the effective region 24 is accurately defined by the application of the reinforcing resin, variation in performance for each electrode sheet assembly 3 can be suppressed, and a long life can be expected. In addition, the structure which the sheet | seat reinforcement | strengthening part 17 reaches to the outer edge of the separator sheet 2 may be sufficient.

図３に示すように、セパレータシート２（セパレータ原反１６）の下面２２（又は厚さ方向中間部）には、前記補強樹脂よりも硬質の樹脂からなる第二シート強化部２５が設けられる。第二シート強化部２５は、セパレータシート２の下面２２に設けられることで、シート強化部１７に突き刺した電極シート１のバリ１４がセパレータシート２を突き破ることを防止する。   As shown in FIG. 3, a second sheet reinforcing portion 25 made of a resin harder than the reinforcing resin is provided on the lower surface 22 (or intermediate portion in the thickness direction) of the separator sheet 2 (separator raw material 16). The second sheet reinforcing portion 25 is provided on the lower surface 22 of the separator sheet 2, thereby preventing the burr 14 of the electrode sheet 1 piercing the sheet reinforcing portion 17 from breaking through the separator sheet 2.

第二シート強化部２５は、図３ではセパレータシート２の下面２２に形成された所定厚さの樹脂層として構成されるが、シート強化部１７と同様、セパレータシート２の下面２２に溝２３を形成して樹脂を流入、硬化させた構成としたり、セパレータシート２に樹脂を染み込ませて硬化させた構成としてもよい。また、シート強化部１７よりも下面２２側であれば、セパレータシート２のシート厚さ方向中間部に第二シート強化部２５を設けてもよい。
なお、各シート強化部１７，２５をセパレータ原反１６に予め設置したり、樹脂によらずセパレータ原反１６の該当箇所の密度を上げる等により強度を上げてシート強化部を形成してもよい。 In FIG. 3, the second sheet reinforcing portion 25 is configured as a resin layer having a predetermined thickness formed on the lower surface 22 of the separator sheet 2, but, like the sheet reinforcing portion 17, the groove 23 is formed on the lower surface 22 of the separator sheet 2. It is good also as a structure which made the resin flow in and was made to harden | cure, or was made to soak the resin in the separator sheet 2, and to make it harden | cure. Further, the second sheet reinforcing part 25 may be provided in the sheet thickness direction intermediate part of the separator sheet 2 as long as it is on the lower surface 22 side from the sheet reinforcing part 17.
In addition, each sheet | seat reinforcement | strengthening part 17 and 25 may be previously installed in the separator raw fabric 16, or a sheet | seat reinforcement | strengthening part may be formed by raising intensity by raising the density of the applicable location of the separator original fabric 16 irrespective of resin. .

このように、セパレータシート２の一側面における電極シート１の外縁部１３と対向する部分に枠状のシート強化部１７を形成し、このシート強化部１７に前記電極シート１の外縁部１３からシート厚さ方向で突出するバリ１４を突き刺して係合させ、前記バリ１４の前記シート強化部１７に対する係合力により、前記電極シート１と前記セパレータシート２とを一体的に結合することで、電極シート１のバリ１４がセパレータシート２を突き破ることを抑止できると共に、電極シート１とセパレータシート２とを別途接着剤等を用いて結合する場合と比べてこれらの結合作業を容易にできる。また、シート強化部１７は電極シート１の外縁形状に合わせて自由に形成できるので、従来の如くセパレータシート２の外縁部を折り込んで強化部を形成するような場合と比べて、電極シート１外縁に沿うシート強化部１７の形状自由度を確保できる。   In this way, a frame-shaped sheet reinforcing portion 17 is formed on a side surface of the separator sheet 2 facing the outer edge portion 13 of the electrode sheet 1, and the sheet reinforcing portion 17 is formed from the outer edge portion 13 of the electrode sheet 1 to the sheet. The electrode sheet 1 and the separator sheet 2 are integrally coupled by piercing and engaging the burr 14 protruding in the thickness direction, and the engaging force of the burr 14 with respect to the sheet reinforcing portion 17. 1 can prevent the burr 14 from breaking through the separator sheet 2 and can facilitate the joining operation compared to the case where the electrode sheet 1 and the separator sheet 2 are separately joined using an adhesive or the like. Moreover, since the sheet | seat reinforcement | strengthening part 17 can be freely formed according to the outer edge shape of the electrode sheet 1, compared with the case where the outer edge part of the separator sheet 2 is folded and a reinforcement part is formed like before, the outer edge of the electrode sheet 1 is formed. It is possible to ensure the degree of freedom of the shape of the sheet reinforcing part 17 along the line.

さらに、前記セパレータシート２におけるシート厚さ方向で前記シート強化部１７を挟んで前記電極シート１と反対側に位置する部位に、前記シート強化部１７よりも硬質の第二シート強化部２５を設けることで、バリ１４をシート強化部１７に突き刺すことによる電極シート１及びセパレータシート２の一体的な結合を可能としながら、電極シート１のバリ１４がセパレータシート２を突き破ることをより確実に抑止できる。   Further, a second sheet reinforcing portion 25 that is harder than the sheet reinforcing portion 17 is provided at a position that is located on the opposite side of the electrode sheet 1 with the sheet reinforcing portion 17 in the sheet thickness direction of the separator sheet 2. Thus, it is possible to more reliably prevent the burr 14 of the electrode sheet 1 from breaking through the separator sheet 2 while allowing the electrode sheet 1 and the separator sheet 2 to be integrally coupled by piercing the burr 14 into the sheet reinforcing portion 17. .

次に、上記二次電池の製造装置３０について説明する。
図５に示すように、製造装置３０は、帯状の電極原反１１から所定形状の電極シート１を切り出す電極準備工程３１と、帯状のセパレータ原反１６に電極シート１の外縁形状に沿う枠状のシート強化部１７を形成して強化セパレータ原反１８とするセパレータ準備工程３６と、強化セパレータ原反１８に電極シート１を結合して電極付きセパレータ原反１９とした後にこれを電極シート組体３毎に切断する電極シート組体製作工程４１と、を有する。 Next, the manufacturing apparatus 30 for the secondary battery will be described.
As shown in FIG. 5, the manufacturing apparatus 30 includes an electrode preparation step 31 for cutting out the electrode sheet 1 having a predetermined shape from the strip-shaped electrode raw fabric 11, and a frame shape along the outer edge shape of the electrode sheet 1 on the strip-shaped separator raw fabric 16. The separator preparation step 36 for forming the sheet reinforcing portion 17 to be a reinforced separator original fabric 18, and the electrode sheet 1 is joined to the reinforced separator original fabric 18 to form a separator original fabric 19 with an electrode. And an electrode sheet assembly manufacturing step 41 for cutting every three.

電極準備工程３１は、帯状の電極原反１１を巻回した電極ロール１０と、電極ロール１０から電極原反１１を工程下流側に巻き出す電極巻き出しロール３２と、電極巻き出しロール３２が巻き出した電極原反１１から前記一側辺の切片４を切除すると共に所定長さにカットして電極シート１を切り出す電極カッターロール３３と、電極カッターロール３３が切り出した電極シート１をセパレータシート２との結合位置（重ね合わせ位置）に案内する電極ガイド３４と、を備える。なお、図中符号３５は前記切片４を回収する切片受けを、符号Ｆ１は電極原反１１の搬送方向をそれぞれ示す。   The electrode preparation process 31 includes an electrode roll 10 wound with a strip-shaped electrode original fabric 11, an electrode unwinding roll 32 for unwinding the electrode original fabric 11 from the electrode roll 10 to the downstream side of the process, and an electrode unwinding roll 32. The electrode cutter roll 33 which cuts out the electrode sheet 1 by cutting out the section 4 on the one side from the electrode raw fabric 11 taken out, and the electrode sheet 1 cut out by the electrode cutter roll 33 is separated into the separator sheet 2. And an electrode guide 34 for guiding to a coupling position (overlapping position). In the figure, reference numeral 35 denotes a section receiver for collecting the section 4, and reference numeral F1 denotes a conveying direction of the electrode raw fabric 11.

セパレータ準備工程３６は、帯状のセパレータ原反１６を巻回したセパレータロール１５と、セパレータロール１５からセパレータ原反１６を工程下流側に巻き出すセパレータ巻き出しロール３７と、セパレータ巻き出しロール３７が巻き出したセパレータ原反１６の上面２１に液状の補強樹脂を電極シート１の外縁形状に沿う枠状に塗布（転写）するディスペンスロール３８と、ディスペンスロール３８が塗布した補強樹脂を乾燥や熱処理等により硬化させてシート強化部１７を形成する樹脂硬化装置３９と、シート強化部１７を形成したセパレータ原反１６（強化セパレータ原反１８）におけるシート強化部１７の欠損等の有無を検査するカメラ等の検査装置４０と、を備える。なお、図中符号Ｆ２はセパレータ原反１６の搬送方向を示す。また、図示は略すが、例えばディスペンスロール３８と樹脂硬化装置３９との間には第二シート強化部２５を形成（転写）するための手段が設けられる。   The separator preparation process 36 includes a separator roll 15 wound with a strip-shaped separator original 16, a separator unwinding roll 37 for unwinding the separator original 16 from the separator roll 15 to the downstream side of the process, and a separator unwinding roll 37. Dispensing roll 38 for applying (transferring) liquid reinforcing resin in a frame shape along the outer edge shape of electrode sheet 1 to the upper surface 21 of the separator raw 16 that has been taken out, and the reinforcing resin applied by dispensing roll 38 by drying or heat treatment, etc. A resin curing device 39 that cures to form the sheet reinforcing portion 17, a camera that inspects for the presence or absence of the sheet reinforcing portion 17 in the separator raw fabric 16 (reinforced separator raw fabric 18) on which the sheet reinforcing portion 17 is formed, and the like. And an inspection device 40. In addition, the code | symbol F2 in a figure shows the conveyance direction of the separator raw fabric 16. FIG. Although not shown, for example, a means for forming (transferring) the second sheet reinforcing portion 25 is provided between the dispense roll 38 and the resin curing device 39.

電極シート組体製作工程４１は、電極シート１をその外縁部１３がシート強化部１７に対向するように強化セパレータ原反１８に重ね合わせると同時に（図３（ａ）参照）これらを互いに押し付けて一体的に結合する（図３（ｂ）参照）プレスロール４２と、電極シート１が結合されたセパレータ原反１６（電極付きセパレータ原反１９）の上下を逆にする反転機構４３と、例えば反転機構４３中に設けられて電極付きセパレータ原反１９の両面の異常の有無を検査するカメラ等の両面検査装置４４と、電極付きセパレータ原反１９を電極シート組体３毎に切断するヒートカッターロール４５と、ヒートカッターロール４５が切断した電極シート組体３を工程下流側に送り出す送り出しロール４６と、送り出しロール４６が送り出した電極シート組体３を受け取るトレイ４７と、を備える。   In the electrode sheet assembly manufacturing process 41, the electrode sheet 1 is superimposed on the reinforced separator raw fabric 18 so that the outer edge portion 13 thereof faces the sheet reinforced portion 17 (see FIG. 3A), and these are pressed against each other. A reversing mechanism 43 that reverses the top and bottom of a press roll 42 that is integrally coupled (see FIG. 3 (b)) and a separator raw 16 (electrode separator 19 with electrode) to which the electrode sheet 1 is coupled, A double-sided inspection device 44 such as a camera for inspecting the presence / absence of abnormality on both sides of the electrode separator raw 19 provided in the mechanism 43, and a heat cutter roll for cutting the electrode separator original 19 for each electrode sheet assembly 3 45, a feed roll 46 for feeding the electrode sheet assembly 3 cut by the heat cutter roll 45 to the downstream side of the process, and an electrode sheet fed by the feed roll 46. It includes a tray 47 for receiving the door assembly 3, a.

なお、図５では正負極の一方の電極分のみの構成を示すが、正負極の他方の電極分の構成（トレイ４７を除く）も同様に設置し、正負極の電極シート組体３を交互にトレイ４７に投入することで、正負電極を交互に積層した積層体をトレイ４７内で構成することもできる。また、両面検査カメラは反転機構４３の上流側又は下流側に設けてもよい。さらに、電極付きセパレータ原反１９を枚葉に切断するものはヒートカッターロール４５に限らない。   5 shows the configuration of only one electrode of the positive and negative electrodes, the configuration of the other electrode of the positive and negative electrodes (excluding the tray 47) is also installed in the same manner, and the positive and negative electrode sheet assemblies 3 are alternately arranged. In this case, a stacked body in which positive and negative electrodes are alternately stacked can be configured in the tray 47. Further, the double-sided inspection camera may be provided on the upstream side or the downstream side of the reversing mechanism 43. Furthermore, what cuts the electrode separator raw 19 into sheets is not limited to the heat cutter roll 45.

プレスロール４２にて電極シート１と強化セパレータ原反１８とを押し付ける際、電極シート１の外縁部１３に形成されたバリ１４は、強化セパレータのシート強化部１７に押し付けられて食い込む（図３（ｂ）参照）。このとき、前記第二シート強化部２５を設けておくことで、バリ１４がシート強化部１７ひいてはセパレータシート２を突き破って反対側に飛び出すことがなく、正負電極間の短絡が防止される。
また、電極シート１外周のバリ１４がセパレータシート２に係合することで、これらを一体的に結合することも可能である。なお、シート強化部１７は補強樹脂の種類、量及び硬さ等で仕様を変更でき、かつ電極シート１の外縁形状に合わせて自由に形成できる。 When the electrode sheet 1 and the reinforced separator original fabric 18 are pressed by the press roll 42, the burr 14 formed on the outer edge portion 13 of the electrode sheet 1 is pressed against the sheet reinforcing portion 17 of the reinforced separator and bites into it (FIG. 3 ( b)). At this time, by providing the second sheet reinforcing portion 25, the burr 14 does not break through the sheet reinforcing portion 17 and thus the separator sheet 2 and jump out to the opposite side, thereby preventing a short circuit between the positive and negative electrodes.
Further, the burr 14 on the outer periphery of the electrode sheet 1 is engaged with the separator sheet 2 so that they can be integrally coupled. In addition, the sheet reinforcement part 17 can change a specification with the kind, quantity, hardness, etc. of reinforcement resin, and can be freely formed according to the outer edge shape of the electrode sheet 1. FIG.

本実施形態では、製造装置３０のレイアウト上、電極シート１がセパレータ原反１６の上面２１に接合される。電極シート１のバリ１４のシート強化部１７への食い込み量は、補強樹脂の硬度とプレスロール４２の加圧力とで制御される。電極準備工程３１では、電極シート１のバリ１４が所定高さで安定して発生するような制御が必要であるが、これはバリ１４を無くす制御よりもはるかに容易である。   In the present embodiment, the electrode sheet 1 is bonded to the upper surface 21 of the separator raw fabric 16 in view of the layout of the manufacturing apparatus 30. The amount of biting of the burr 14 of the electrode sheet 1 into the sheet reinforcing portion 17 is controlled by the hardness of the reinforcing resin and the pressing force of the press roll 42. In the electrode preparation step 31, it is necessary to perform control so that the burrs 14 of the electrode sheet 1 are stably generated at a predetermined height, which is much easier than the control for eliminating the burrs 14.

セパレータシート２は空孔率が高く（密度が低く）、吸盤ハンドでは把持（吸着）し難い。そこで、密度が高く吸着し易い金属製の電極シート１と上下を反転させることで、これらを共釣り状態にした安全チャックを可能とし、積層工程のロボットハンドリングに有利な構成としている。なお、前記空孔率とは、セパレータシート２の実体積を見かけの体積から引いて空孔の体積を求め、この空孔の体積をセパレータシート２の見かけの体積で除して得られる値である。   Separator sheet 2 has a high porosity (low density) and is difficult to grip (adsorb) with a suction cup hand. Therefore, by reversing the metal electrode sheet 1 having high density and easily adsorbed and upside down, a safety chuck in which these are in a co-fishing state is made possible, which is advantageous for robot handling in the lamination process. The porosity is a value obtained by subtracting the actual volume of the separator sheet 2 from the apparent volume to obtain the volume of the holes, and dividing the volume of the holes by the apparent volume of the separator sheet 2. is there.

本実施形態では、連続するセパレータ原反１６に対し、電極シート１の外縁形状に沿う枠状の補強樹脂をディスペンスロール３８により素早く連続して転写することで、多数の電極シート組体３を正確かつ容易に製作できる。   In the present embodiment, a frame-shaped reinforcing resin along the outer edge shape of the electrode sheet 1 is quickly and continuously transferred to the continuous separator raw 16 by the dispense roll 38, so that a large number of electrode sheet assemblies 3 can be accurately obtained. And it can be easily manufactured.

１ 電極シート
２ セパレータシート
３ 電極シート組体
１０ 電極ロール
１１ 電極原反
１３ 外縁部
１４ バリ
１５ セパレータロール
１６ セパレータ原反
１７ シート強化部
２１ 上面（一側面）
２２ 下面（他側面）
２５ 第二シート強化部
３０ 製造装置（電池の製造装置）
３２ 電極巻き出しロール
３３ 電極カッターロール
３４ 電極ガイド
３７ セパレータ巻き出しロール
３８ ディスペンスロール
３９ 樹脂硬化装置
４０ 検査装置
４２ プレスロール
４３ 反転機構
４４ 両面検査装置
４５ ヒートカッターロール（カッターロール）
４６ 送り出しロール
４７ トレイ DESCRIPTION OF SYMBOLS 1 Electrode sheet 2 Separator sheet 3 Electrode sheet assembly 10 Electrode roll 11 Electrode raw fabric 13 Outer edge portion 14 Burr 15 Separator roll 16 Separator raw fabric 17 Sheet reinforcing portion 21 Upper surface (one side surface)
22 Bottom (other side)
25 2nd sheet reinforcement | strengthening part 30 Manufacturing apparatus (Battery manufacturing apparatus)
32 Electrode unwinding roll 33 Electrode cutter roll 34 Electrode guide 37 Separator unwinding roll 38 Dispense roll 39 Resin curing device 40 Inspection device 42 Press roll 43 Reversing mechanism 44 Double-sided inspection device 45 Heat cutter roll (cutter roll)
46 Feeding roll 47 Tray

Claims (4)

所定形状に切断した電極シートとセパレータシートとを重ね合わせて電極シート組体とし、この電極シート組体を正負極で交互に複数積層してなる電池であって、
前記セパレータシートの一側面における前記電極シートの外縁部と対向する部分に枠状のシート強化部を形成し、このシート強化部に前記電極シートの外縁部からシート厚さ方向で突出するバリを突き刺して係合させることを特徴とする電池。 The electrode sheet and separator sheet cut into a predetermined shape are overlapped to form an electrode sheet assembly, and the battery is formed by alternately laminating a plurality of this electrode sheet assembly with positive and negative electrodes,
A frame-shaped sheet reinforcing portion is formed on a side surface of the separator sheet facing the outer edge portion of the electrode sheet, and a burr protruding from the outer edge portion of the electrode sheet in the sheet thickness direction is pierced into the sheet reinforcing portion. A battery characterized by being engaged. 前記バリの前記シート強化部に対する係合力により、前記電極シートと前記セパレータシートとを一体的に結合することを特徴とする請求項１に記載の電池。   The battery according to claim 1, wherein the electrode sheet and the separator sheet are integrally coupled by an engaging force of the burr to the sheet reinforcing portion. 前記セパレータシートにおける前記電極シートと反対側の他側面又は前記シート強化部よりも前記他側面側の部位に、前記シート強化部よりも硬質の第二シート強化部を設けることを特徴とする請求項１又は２に記載の電池。   The second sheet reinforcing part that is harder than the sheet reinforcing part is provided on the other side of the separator sheet opposite to the electrode sheet or on the other side of the sheet reinforcing part. The battery according to 1 or 2. 所定形状に切断した電極シートとセパレータシートとを重ね合わせて電極シート組体とし、この電極シート組体を正負極で交互に複数積層してなる電池の製造装置であって、
帯状の電極原反を巻回した電極ロールと、この電極ロールから前記電極原反を工程下流側に巻き出す電極巻き出しロールと、この電極巻き出しロールが巻き出した前記電極原反から所定形状の前記電極シートを切り出す電極カッターロールと、この電極カッターロールが切り出した前記電極シートを前記セパレータシートとの結合位置に案内する電極ガイドと、を備え、
帯状のセパレータ原反を巻回したセパレータロールと、このセパレータロールから前記セパレータ原反を工程下流側に巻き出すセパレータ巻き出しロールと、このセパレータ巻き出しロールが巻き出した前記セパレータ原反の一側面に液状の補強樹脂を前記電極シートの外縁形状に沿う枠状に転写するディスペンスロールと、このディスペンスロールが転写した補強樹脂を硬化させてシート強化部を形成する樹脂硬化装置と、前記シート強化部を形成したセパレータ原反における前記シート強化部の状態を検査する検査装置と、を備え、
前記電極シートをその外縁部が前記シート強化部に対向するように前記シート強化部が形成されたセパレータ原反に重ね合わせると共にこれらを互いに押し付けて一体的に結合するプレスロールと、前記電極シートが結合されたセパレータ原反の表裏を反転させる反転機構と、前記電極シートが結合されたセパレータ原反の表裏面の状態を検査する両面検査装置と、前記電極シートが結合されたセパレータ原反を前記電極シート組体毎に切断するカッターロールと、このカッターロールが切断した前記電極シート組体を工程下流側に送り出す送り出しロールと、この送り出しロールが送り出した前記電極シート組体を受け取るトレイと、を備えることを特徴とする電池の製造装置。 A battery manufacturing apparatus in which an electrode sheet and a separator sheet, which are cut into a predetermined shape, are overlapped to form an electrode sheet assembly, and a plurality of this electrode sheet assembly are alternately stacked with positive and negative electrodes,
An electrode roll obtained by winding a strip-shaped electrode original fabric, an electrode unwinding roll for unwinding the electrode original fabric from the electrode roll to the downstream side of the process, and a predetermined shape from the electrode original fabric unrolled by the electrode unwinding roll An electrode cutter roll that cuts out the electrode sheet, and an electrode guide that guides the electrode sheet cut out by the electrode cutter roll to a coupling position with the separator sheet,
Separator roll wound with a strip-shaped separator original, separator unwinding roll for unwinding the separator original from the separator roll to the downstream side of the process, and one side surface of the separator original unrolled by the separator unwinding roll Dispensing roll for transferring liquid reinforcing resin into a frame shape along the outer edge shape of the electrode sheet, a resin curing device for curing the reinforcing resin transferred by the dispensing roll to form a sheet reinforcing portion, and the sheet reinforcing portion An inspection device for inspecting the state of the sheet reinforcing portion in the separator raw fabric formed with,
A press roll that superimposes the electrode sheet on a separator fabric on which the sheet reinforcing portion is formed so that an outer edge portion thereof opposes the sheet reinforcing portion and presses them together to integrally bond the electrode sheet; and A reversing mechanism for reversing the front and back of the combined separator sheet, a double-side inspection device for inspecting the state of the front and back surfaces of the separator sheet to which the electrode sheet is bonded, and the separator original sheet to which the electrode sheet is bonded A cutter roll for cutting each electrode sheet assembly, a feed roll for feeding the electrode sheet assembly cut by the cutter roll to the downstream side of the process, and a tray for receiving the electrode sheet assembly sent by the feed roll. A battery manufacturing apparatus comprising:
JP2011125718A 2011-06-03 2011-06-03 Battery and apparatus for manufacturing the same Expired - Fee Related JP5668607B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011125718A JP5668607B2 (en) 2011-06-03 2011-06-03 Battery and apparatus for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011125718A JP5668607B2 (en) 2011-06-03 2011-06-03 Battery and apparatus for manufacturing the same

Publications (2)

Publication Number Publication Date
JP2012252925A true JP2012252925A (en) 2012-12-20
JP5668607B2 JP5668607B2 (en) 2015-02-12

Family

ID=47525551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011125718A Expired - Fee Related JP5668607B2 (en) 2011-06-03 2011-06-03 Battery and apparatus for manufacturing the same

Country Status (1)

Country Link
JP (1) JP5668607B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505238A (en) * 2015-09-07 2017-03-15 丰田自动车株式会社 The manufacture method of multilayer electrode body
CN114678521A (en) * 2022-04-24 2022-06-28 江苏金锋源新能源有限公司 Method for improving specific surface area of lithium ion battery anode material precursor

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355865A (en) * 1986-05-16 1988-03-10 Yuasa Battery Co Ltd Closed type lead battery and process for production thereof
JPH05174829A (en) * 1991-12-25 1993-07-13 Shin Kobe Electric Mach Co Ltd Manufacture of lead-acid battery collector
JPH1074535A (en) * 1996-07-04 1998-03-17 Sony Corp Battery electrode element and its manufacturing method and device
US6134773A (en) * 1998-02-20 2000-10-24 Lithium Technology Corporation Method for automatic mass production of electrochemical cells
JP2001093533A (en) * 1999-09-21 2001-04-06 Mekatekku Kk Device for manufacturing layered cell
JP2001283897A (en) * 2000-04-04 2001-10-12 Sony Corp Battery and its manufacturing method
JP2002100397A (en) * 2000-09-25 2002-04-05 Toshiba Battery Co Ltd Cylindrical alkaline secondary cell
JP2004022449A (en) * 2002-06-19 2004-01-22 Toray Eng Co Ltd Battery, manufacturing method of battery and battery manufacturing machine
JP2004342591A (en) * 2003-04-22 2004-12-02 Matsushita Electric Ind Co Ltd Alkaline storage battery and its manufacturing method
JP2005063950A (en) * 2003-07-31 2005-03-10 Matsushita Electric Ind Co Ltd Battery
JP2007250319A (en) * 2006-03-15 2007-09-27 Nec Tokin Corp Stacked battery
WO2009142013A1 (en) * 2008-05-22 2009-11-26 パナソニック株式会社 Battery
JP2010097785A (en) * 2008-10-16 2010-04-30 Nec Tokin Corp Sealed battery
JP2012033282A (en) * 2010-07-28 2012-02-16 Ihi Corp Electrode lamination device
JP2012174453A (en) * 2011-02-21 2012-09-10 Ihi Corp Apparatus for manufacturing electrode laminated body and method for manufacturing the same

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6355865A (en) * 1986-05-16 1988-03-10 Yuasa Battery Co Ltd Closed type lead battery and process for production thereof
JPH05174829A (en) * 1991-12-25 1993-07-13 Shin Kobe Electric Mach Co Ltd Manufacture of lead-acid battery collector
JPH1074535A (en) * 1996-07-04 1998-03-17 Sony Corp Battery electrode element and its manufacturing method and device
US6134773A (en) * 1998-02-20 2000-10-24 Lithium Technology Corporation Method for automatic mass production of electrochemical cells
JP2001093533A (en) * 1999-09-21 2001-04-06 Mekatekku Kk Device for manufacturing layered cell
JP2001283897A (en) * 2000-04-04 2001-10-12 Sony Corp Battery and its manufacturing method
JP2002100397A (en) * 2000-09-25 2002-04-05 Toshiba Battery Co Ltd Cylindrical alkaline secondary cell
JP2004022449A (en) * 2002-06-19 2004-01-22 Toray Eng Co Ltd Battery, manufacturing method of battery and battery manufacturing machine
JP2004342591A (en) * 2003-04-22 2004-12-02 Matsushita Electric Ind Co Ltd Alkaline storage battery and its manufacturing method
JP2005063950A (en) * 2003-07-31 2005-03-10 Matsushita Electric Ind Co Ltd Battery
JP2007250319A (en) * 2006-03-15 2007-09-27 Nec Tokin Corp Stacked battery
WO2009142013A1 (en) * 2008-05-22 2009-11-26 パナソニック株式会社 Battery
JP2010097785A (en) * 2008-10-16 2010-04-30 Nec Tokin Corp Sealed battery
JP2012033282A (en) * 2010-07-28 2012-02-16 Ihi Corp Electrode lamination device
JP2012174453A (en) * 2011-02-21 2012-09-10 Ihi Corp Apparatus for manufacturing electrode laminated body and method for manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505238A (en) * 2015-09-07 2017-03-15 丰田自动车株式会社 The manufacture method of multilayer electrode body
JP2017054587A (en) * 2015-09-07 2017-03-16 トヨタ自動車株式会社 Manufacturing method for layered-electrode body
CN114678521A (en) * 2022-04-24 2022-06-28 江苏金锋源新能源有限公司 Method for improving specific surface area of lithium ion battery anode material precursor

Also Published As

Publication number Publication date
JP5668607B2 (en) 2015-02-12

Similar Documents

Publication Publication Date Title
JP6787241B2 (en) Manufacturing method of electrode laminate and battery
JP6399092B2 (en) Composite material joining method and composite material joining device
CN108352492B (en) Secondary battery core
KR102048764B1 (en) Plasma generating apparatus for secondary battery
JP6481258B2 (en) Electric device separator bonding method, electric device separator bonding apparatus, and electric device
JP2012129098A (en) Manufacturing method and manufacturing apparatus of secondary battery
JP2014179304A (en) Method and device for forming electrode laminate for secondary battery
WO2015050228A1 (en) Apparatus for bonding separators in electrical devices
JP5276817B2 (en) Metal bonded body, metal bonding method, and metal bonding apparatus
JP6095120B2 (en) Lithium ion secondary battery
JP2010129450A (en) Battery and manufacturing method of battery
JP5668607B2 (en) Battery and apparatus for manufacturing the same
JP7156046B2 (en) LAMINATE PRESSING DEVICE, METHOD FOR MANUFACTURING PRESSED STRIP LAMINATE, METHOD FOR MANUFACTURING LAMINATED ELECTRODE, AND METHOD FOR MANUFACTURING BATTERY
JP2012209072A (en) Electrode laminate of electrode laminated battery and manufacturing method of the electrode laminate
JP6364854B2 (en) Separator joining device for electrical devices
JP6520210B2 (en) APPARATUS FOR MANUFACTURING SEPARATOR ELECTRODE, AND METHOD FOR MANUFACTURING SEPARATOR ELECTRODE
JP6075256B2 (en) Electrode manufacturing method and electrode manufacturing apparatus
JP6575940B2 (en) Bagging electrode manufacturing apparatus and bagging electrode manufacturing method
JP6819183B2 (en) Manufacturing method of electrode assembly
JP2017105083A (en) Electrode body manufacturing device and electrode body manufacturing method
US20200052278A1 (en) Method for bonding separators, method for manufacturing electrochemical device, and electrochemical device
JP6747248B2 (en) Stacked battery manufacturing equipment
JP2020102353A (en) Laminated electrode manufacturing device, and laminate manufacturing device
JP6024050B2 (en) Multilayer coil and method of manufacturing the same
JP2010157366A (en) Secondary battery, method of manufacturing secondary battery, and secondary battery manufacturing apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140424

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141031

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20141118

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20141201

R151 Written notification of patent or utility model registration

Ref document number: 5668607

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees