JP2000251882A - Tab welding jig for battery - Google Patents
Tab welding jig for batteryInfo
- Publication number
- JP2000251882A JP2000251882A JP11055566A JP5556699A JP2000251882A JP 2000251882 A JP2000251882 A JP 2000251882A JP 11055566 A JP11055566 A JP 11055566A JP 5556699 A JP5556699 A JP 5556699A JP 2000251882 A JP2000251882 A JP 2000251882A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- laminate
- sheet
- battery
- plate
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シート状の電池用
電極に対する電極タブの溶接治具に係り、さらに詳しく
は電極タブに対して位置精度の高い溶接を可能とする電
池用電極タブの溶接治具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for welding an electrode tab to a sheet-like battery electrode, and more particularly, to welding of a battery electrode tab which enables high-precision welding to an electrode tab. About jigs.
【０００２】[0002]
【従来の技術】たとえば非水溶媒型電池などの二次電池
は、携帯型電話機、ビデオカメラなどの電源として、広
く実用に供されている。また、電源用電池においては、
前記機器類の小形化や高性能化に伴って、小形、軽量
化、高電圧化、高容量化などが求められている。2. Description of the Related Art For example, secondary batteries such as non-aqueous solvent batteries are widely used as power sources for portable telephones and video cameras. In the power supply battery,
With the miniaturization and high performance of the above-mentioned devices, miniaturization, weight reduction, high voltage, high capacity, and the like are required.
【０００３】こうした要求に対応して、シート状正極、
シート状負極、これら両電極間に介挿・配置されたセパ
レーターとしても機能するシート状のポリマ−電解質系
の積層体を電極群としたシート状電池が開発されてい
る。ここで、各シート状電極は、集電体シート（もしく
はメッシュ状）に、正極活物質層もしくは負極活物質層
を担持させて成り、かつ集電体に溶接などにより接合さ
れた電極タブが、電極端子の引き出し部として使用され
る構成を採っている。In response to such demands, sheet-like positive electrodes,
A sheet-like battery having a sheet-like negative electrode and a sheet-like polymer-electrolyte-based laminate that also functions as a separator interposed and disposed between these two electrodes has been developed. Here, each sheet-like electrode is formed by supporting a positive electrode active material layer or a negative electrode active material layer on a current collector sheet (or a mesh shape), and an electrode tab joined to the current collector by welding or the like, The structure used as a lead part of an electrode terminal is taken.
【０００４】なお、前記正極活物質層は、リチウムイオ
ンを吸蔵・放出するリチウム含有金属酸化物、たとえば
リチウムマンガン複合酸化物、リチウム含有コバルト酸
化物、二酸化マンガン、リチウム含有ニッケルコバルト
酸化物、リチウムを含む非晶質五酸化バナジウム、カル
コゲン化合物など、およびバインダー成分（樹脂）を主
成分として形成されている。一方、負極活物質層は、ビ
スフェノール樹脂、ポリアクリロニトリル、セルローズ
などの焼成物、コークスやピッチの焼成物、ニッケル粉
末、およびバインダー成分（樹脂）を主成分として形成
されている。ここで、焼成物（炭素質材）は、天然もし
くは人口グラファイト、カーボンブラック、アセチレン
ブラック、ケッチェンブラックなどが例示される。The positive electrode active material layer contains a lithium-containing metal oxide that absorbs and releases lithium ions, such as lithium manganese composite oxide, lithium-containing cobalt oxide, manganese dioxide, lithium-containing nickel cobalt oxide, and lithium. It is formed mainly of amorphous vanadium pentoxide, a chalcogen compound, etc., and a binder component (resin). On the other hand, the negative electrode active material layer is formed mainly of a fired product of bisphenol resin, polyacrylonitrile, cellulose, or the like, a fired product of coke or pitch, nickel powder, and a binder component (resin). Here, examples of the calcined material (carbonaceous material) include natural or artificial graphite, carbon black, acetylene black, and Ketjen black.
【０００５】また、シート状正極の集電体としては、た
とえばアルミニウム箔、アルミニウムメッシュ、アルミ
ニウム製エキスバンドメタル、アルミニウム製パンチメ
タルなどが使用されている。一方、シート状負極の集電
体としては、銅箔、銅メッシュ、銅製エキスバンドメタ
ル、銅製パンチメタルなどが使用されている。As the current collector of the sheet-shaped positive electrode, for example, aluminum foil, aluminum mesh, aluminum band metal, aluminum punch metal and the like are used. On the other hand, as the current collector of the sheet-shaped negative electrode, copper foil, copper mesh, copper band metal, copper punch metal, or the like is used.
【０００６】そして、前記シート状電池は、たとえばシ
ート状正極、シート状負極および電解質を担持するセパ
レーターなどを積層体化し、電極群を形成するととも
に、電極タブに接続する電極端子を導出させ、その積層
体をカバーフィルムで気密に封止一体化して製造してい
る。このシート状電池の製造工程においては、前記した
ようにカバーフィルムによる封止一体化に先だって、図
３に実施状態を模式的に示すような溶接治具を用いて、
シート状電極の同じ極性の電極タブ同士を溶接法で接合
している。[0006] In the sheet-shaped battery, for example, a sheet-shaped positive electrode, a sheet-shaped negative electrode, a separator supporting an electrolyte, and the like are laminated to form an electrode group, and an electrode terminal connected to an electrode tab is led out. The laminate is air-tightly sealed and integrated with a cover film. In the manufacturing process of the sheet-shaped battery, as described above, prior to the sealing integration with the cover film, using a welding jig as schematically shown in FIG.
Electrode tabs of the same polarity of the sheet-like electrode are joined by a welding method.
【０００７】すなわち、図３に上面的に示すごとく、電
池用電極シートを含む積層体（電極群）１を載置するプ
レート２と、前記プレート２面に設けられ、載置される
積層体１の電極タブ3a，3bが導出された辺を除く他の側
辺に対接して、積層体１を位置決めする位置決めガイド
４とを備えた溶接治具が使用される。ここで、電池用電
極シートを含む積層体１は、正極シートと負極シートと
の間にセパレーターを介挿した系であり、この系の繰り
返しである。また、3aは正極シートの電極タブ、3bは負
極シートの電極タブである。More specifically, as shown in FIG. 3 as a top view, a plate 2 on which a laminate (electrode group) 1 including a battery electrode sheet is placed, and a laminate 1 provided on the plate 2 and placed thereon A welding jig having a positioning guide 4 for positioning the laminated body 1 is used in contact with other sides except the side from which the electrode tabs 3a and 3b are led out. Here, the laminate 1 including the battery electrode sheet is a system in which a separator is interposed between a positive electrode sheet and a negative electrode sheet, and this system is repeated. Reference numeral 3a denotes an electrode tab on the positive electrode sheet, and 3b denotes an electrode tab on the negative electrode sheet.
【０００８】[0008]
【発明が解決しようとする課題】上記のように、ポリマ
ー電池の電極群は、シート状正極およびシート状負極の
間にシート状セパレーターを挟み積層体１化される。ま
た、この積層体１化に当たっては、電極タブ3a，3bを導
出した一辺における絶縁性を確保する観点から、各シー
ト状電極間に介挿するセパレーターを突出（延出）させ
ている。ここで、セパレーターは、一般的に、機械的な
強度が劣り損傷を起こし易いため、セパレーターが延出
する辺、すなわち電極タブ3a，3bを導出した辺に対して
は、位置決めガイドを配置することができない。As described above, the electrode group of the polymer battery is formed into a laminate 1 with a sheet-like separator sandwiched between a sheet-like positive electrode and a sheet-like negative electrode. In addition, when the laminated body 1 is formed, a separator inserted between each sheet-like electrode is protruded (extended) from the viewpoint of securing insulation at one side from which the electrode tabs 3a and 3b are led out. Here, since the separator generally has poor mechanical strength and is liable to be damaged, a positioning guide should be arranged on the side where the separator extends, that is, on the side from which the electrode tabs 3a and 3b are led out. Can not.
【０００９】したがって、電極タブ3a，3bを導出した辺
を除いた他の辺に対する位置決めガイド４で、積層体１
を保持した態様で電極タブ3aもしくは3b同士を位置決め
配置（重ね合わせ）し、図示を省略した超音波溶接機の
ホーンとアンビルとで挟着し、超音波を加えて接合して
いる。しかし、この超音波による接合操作では、次のよ
うな不都合が認められる。Therefore, the positioning guide 4 for the sides other than the side from which the electrode tabs 3a and 3b are led out, and the laminated body 1
The electrode tabs 3a or 3b are positioned and arranged (overlapping) with each other in such a manner that they are held, are sandwiched between a horn of an ultrasonic welding machine (not shown) and an anvil, and are joined by applying ultrasonic waves. However, the following inconvenience is recognized in the joining operation using the ultrasonic waves.
【００１０】すなわち、電池の大容量化を目的として、
シート状正極およびシート状負極を複数層化し、積層体
（電極群）１自体を多層形化する一方、電気的な接続構
成を簡略化するために、各電極タブ3aもしくは3b同士を
集合・一体化する。このような要望において、多層形化
した電極群１の各電極タブ3aもしくは3b同士を超音波溶
接で一体化するとき、より具体的には、超音波溶接機の
ホーンが下降する過程で、電極タブ3aもしくは3bが引っ
張られ、積層体１中における電極シートやセパレーター
の位置ズレが発生する。上記電極タブ3aもしくは3bの引
っ張られに伴う積層体１の位置ズレなどは、形成する電
極群１の内部短絡を発生し、製造歩留まりを損なうこと
になる。That is, for the purpose of increasing the capacity of the battery,
The sheet-shaped positive electrode and the sheet-shaped negative electrode are made into a plurality of layers, and the multilayer body (electrode group) 1 itself is made into a multi-layered form. Become In response to such a demand, when the electrode tabs 3a or 3b of the multi-layered electrode group 1 are integrated by ultrasonic welding, more specifically, during the lowering of the horn of the ultrasonic welding machine, The tab 3a or 3b is pulled, and the position of the electrode sheet or the separator in the laminate 1 is shifted. Displacement of the laminate 1 due to the pulling of the electrode tabs 3a or 3b causes an internal short circuit of the electrode group 1 to be formed, which impairs the production yield.
【００１１】本発明は、上記事情に対処してなされたも
ので、シート状電極を含むの積層体の位置ズレなど解消
するとともに、同じ極性の電極タブ同士を確実に超音波
接合できる溶接治具の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is a welding jig that can eliminate positional displacement of a laminate including a sheet-like electrode, and can reliably ultrasonically join electrode tabs having the same polarity. The purpose is to provide.
【００１２】[0012]
【課題を解決するための手段】請求項１の発明は、一辺
に電極タブを導出させた集電体に電極活物質層を担持さ
せた電池用電極シートを含む積層体を載置するプレート
と、前記プレート面に設けられ、載置される積層体の電
極タブが導出する辺を除く他の側辺に対接して積層体を
位置決めする位置決めガイドと、前記位置決め・載置さ
れる積層体の上面側を押圧して固定する上面押圧体とを
有することを特徴とする電池用のタブ溶接治具である。According to a first aspect of the present invention, there is provided a plate for mounting a laminate including a battery electrode sheet in which an electrode active material layer is supported on a current collector having an electrode tab led out on one side. A positioning guide that is provided on the plate surface and positions the laminate in contact with another side edge other than the side from which the electrode tabs of the placed laminate are led out; and a positioning guide for positioning and placing the laminate. A tab welding jig for a battery, comprising: an upper surface pressing body that presses and fixes an upper surface side.
【００１３】請求項１の発明において、電池用電極シー
トを含む積層体を載置するプレートは、たとえばアルマ
イト処理したアルミニウム、樹脂などを素材とした板で
あり、その長さおよび幅は、積層体の寸法などに応じて
設定される。つまり、積層体を平面的に十分載置できる
とともに、位置決めガイドを設置できる領域を確保する
必要があり、また、このプレートは、一般的に、支持体
で支持されている。In the first aspect of the present invention, the plate on which the laminate including the battery electrode sheet is placed is, for example, a plate made of anodized aluminum, resin, or the like. It is set according to the dimensions of the device. In other words, it is necessary to ensure that the stacked body can be sufficiently placed on a plane and to secure an area where the positioning guide can be installed, and the plate is generally supported by a support.
【００１４】請求項１の発明において、位置決めガイド
は、積層体のセパレーターが延出する辺、すなわちシー
ト状電極を含む積層体の電極タブを導出した辺を除く他
の辺に対する位置決めガイドが配置される。つまり、積
層体が四角形の場合は、連続的もしくは分割的にコの字
型に配置され、また、これらは載置される積層体に対し
て進退・移動できるように摺動的に装着・配置し、汎用
性を持たせた構成としてもよい。In the first aspect of the present invention, the positioning guides are arranged on the sides of the laminate where the separators extend, that is, on the other sides except for the side from which the electrode tabs of the laminate including the sheet electrodes are led out. You. That is, when the laminate is square, they are continuously or dividedly arranged in a U-shape, and these are slidably mounted and arranged so as to be able to advance and retreat and move with respect to the laminate to be mounted. However, a configuration having versatility may be adopted.
【００１５】請求項１の発明において、積層体の上面側
を押圧して固定（位置ズレを防止）する上面押圧体は、
平面的に積層体の少なくとも中央部領域、もしくは周縁
部の複数箇所を押圧するするような構成とする。たとえ
ば、積層体の上面に対応する１個の押圧面、もしくは周
縁部などの複数箇所に対応する複数の分割型押圧面に設
定し、積層体が位置ズレを起こさない程度に押圧する必
要がある。そして、この押圧を加える加圧源としては、
たとえばシリンダー方式、クランプ方式などが挙げられ
る。[0015] In the first aspect of the present invention, the upper surface pressing body that presses and fixes the upper surface side of the laminated body (prevents positional displacement) includes:
At least a central region or a plurality of peripheral portions of the laminate are pressed in a plane. For example, it is necessary to set a single pressing surface corresponding to the upper surface of the laminate or a plurality of split-type pressing surfaces corresponding to a plurality of locations such as a peripheral portion, and press the laminate to such an extent that a displacement does not occur. . And as a pressure source for applying this pressure,
For example, a cylinder system, a clamp system, and the like can be used.
【００１６】請求項１の発明では、位置決めガイドの
他、積層体をプレート面に押圧する上面押圧体を付設し
ている。つまり、位置決めガイドによって電極タブの導
出辺を除く他の辺で水平方向の位置ズレを防止する一
方、さらに、上面押圧体にって全水平方向の位置ズレ防
止が助長される。したがって、超音波溶接機のホーンが
下降し、同じ極性の電極タブ同士を圧着ないし挟着して
電極タブを引っ張る状態を採っても、積層体自体の位置
ズレも抑制・防止されるので、内部での短絡発生の恐れ
が解消する。According to the first aspect of the present invention, in addition to the positioning guide, an upper surface pressing body for pressing the laminated body against the plate surface is additionally provided. In other words, while the positioning guide prevents horizontal misalignment on other sides except the lead-out side of the electrode tabs, the upper surface pressing body further prevents misalignment in the entire horizontal direction. Therefore, even if the horn of the ultrasonic welding machine is lowered and the electrode tabs of the same polarity are pressed or sandwiched and the electrode tabs are pulled, the positional deviation of the laminate itself is suppressed and prevented, so that the internal This eliminates the risk of short-circuiting.
【００１７】[0017]
【発明の実施の形態】以下図１および図２ (a) (b)を参
照して実施例を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to FIGS. 1 and 2 (a) and 2 (b).
【００１８】図１は、実施例に係る電極タブの溶接治具
にシート状電極を含む積層体をセットした状態の概略を
示す上面図である。図１において、５は一辺に電極タブ
6a，6bを導出させた集電体に電極活物質層を担持させた
電池用電極シートを含む積層体７を載置するプレートで
ある。ここで、プレート５は、たとえば厚さ mm程
度、長さ75mm程度、幅62mm程度の角板であり、図示を省
略した支持体によって、ほぼ水平に保持されている。FIG. 1 is a top view schematically showing a state in which a laminate including a sheet electrode is set in a welding jig for an electrode tab according to an embodiment. In FIG. 1, 5 is an electrode tab on one side.
This is a plate on which a laminate 7 including a battery electrode sheet in which an electrode active material layer is carried on a current collector from which 6a and 6b are led out. Here, the plate 5 is, for example, a square plate having a thickness of about mm, a length of about 75 mm, and a width of about 62 mm, and is held substantially horizontally by a support (not shown).
【００１９】また、８は前記プレート５面に設けられ、
載置される積層体７の電極タブ6a，6bが導出する辺を除
く他の側辺に対接して積層体７を位置決めする位置決め
ガイドである。ここで、各位置決めガイド８は、積層体
７の側辺（側面）に対接し、この置決めガイド８よって
積層体７を位置決めする一方、位置ズレを防止する。な
お、位置決めガイド８は、固定的に配置してもよいし、
積層体７の側辺（側面）に対して、スライド方式ないし
摺動的に進退・離接する構成としてもよい。8 is provided on the surface of the plate 5,
This is a positioning guide for positioning the stacked body 7 in contact with other side edges of the mounted stacked body 7 except for the side from which the electrode tabs 6a and 6b extend. Here, each positioning guide 8 is in contact with a side (side surface) of the stacked body 7, and positions the stacked body 7 by the positioning guide 8, while preventing positional deviation. In addition, the positioning guide 8 may be fixedly arranged,
It is also possible to adopt a configuration in which the laminate 7 slides or slides forward and backward with respect to the side (side surface) of the laminate 7.
【００２０】さらに、９は前記位置決め・載置される積
層体７の上面側を押圧して固定する上面押圧体、たとえ
ばクランプ機構である。ここで、クランプ機構９は、プ
レート５に一体的に装備させてもよいが、この実施例の
場合のように、プレート５に隣接して配置してもよい。
なお、この実施例の場合、クランプ機構９による積層体
７の押圧は、厚さ 3mm程度のベークライト（商品名）製
の平板10を介して行う構成と成っている。Further, reference numeral 9 denotes an upper surface pressing body for pressing and fixing the upper surface side of the laminated body 7 to be positioned and placed, for example, a clamp mechanism. Here, the clamp mechanism 9 may be provided integrally with the plate 5 or may be arranged adjacent to the plate 5 as in this embodiment.
In this embodiment, the pressing of the laminate 7 by the clamp mechanism 9 is performed via a flat plate 10 made of Bakelite (trade name) having a thickness of about 3 mm.
【００２１】次に、上記構成の電極タブ溶接治具を使用
した超音波溶接例を説明する。Next, an example of ultrasonic welding using the electrode tab welding jig having the above configuration will be described.
【００２２】図２ (a)， (b)は、この実施態様を模式的
に示す側面図である。先ず、電極タブ溶接治具のプレー
ト５面に、正、負のシート状電極を含む積層体７を位置
決め・載置する。このとき、積層体７から導出した電極
タブ6a同士、電極タブ6b同士は位置合わせされ、同一カ
所でそれぞれ積層形に配置された態様を採る。FIGS. 2A and 2B are side views schematically showing this embodiment. First, a laminate 7 including positive and negative sheet electrodes is positioned and placed on the plate 5 surface of the electrode tab welding jig. At this time, the electrode tabs 6a and the electrode tabs 6b derived from the stacked body 7 are aligned with each other, and are arranged in the same place in a stacked form.
【００２３】その後、図２ (a)に示すごとく、前記積層
体７の上面に平板10を配置し、クランプ機構９によって
平板10を介して積層体７の上面を押圧する。一方、前記
積層体７から導出した電極タブ6aの積層群、もしくは電
極タブ6bの積層群を、超音波溶接器のアンビル11上に位
置させる。Thereafter, as shown in FIG. 2A, a flat plate 10 is disposed on the upper surface of the laminate 7 and the upper surface of the laminate 7 is pressed by the clamp mechanism 9 via the flat plate 10. On the other hand, the laminated group of the electrode tabs 6a or the laminated group of the electrode tabs 6b derived from the laminate 7 is positioned on the anvil 11 of the ultrasonic welder.
【００２４】次いで、図２ (b)に示すごとく、超音波溶
接器のホーン12を下降させ、電極タブ6aの積層群、もし
くは電極タブ6bを前記超音波溶接器のアンビル11面に圧
着（ないし挟着）し、超音波エネルギーを加えて、対応
する電極タブ6a(6b)の積層群を積層・一体に接合する。Next, as shown in FIG. 2B, the horn 12 of the ultrasonic welder is lowered, and the laminated group of the electrode tabs 6a or the electrode tabs 6b is crimped (or pressed) to the surface of the anvil 11 of the ultrasonic welder. Then, by applying ultrasonic energy, the corresponding laminated group of electrode tabs 6a (6b) is laminated and integrally joined.
【００２５】前記超音波接合の操作過程で、溶接治具に
装着したシート状電極を含む積層体７は、位置決めガイ
ド８および上面押圧体９によって、位置ズレの発生が抑
止ないし防止されているため、超音波溶接器のホーン12
下降による電極タブ6a(6b)の引っ張られの影響も低減
（もしくは回避）され、積層体７内部における短絡発生
など認められなかった。つまり、積層体７は、寸法変化
・変形など招来することなく、当初の積層・位置を高い
精度で保持し、かつ高品質な電極群化することができ
る。During the operation of the ultrasonic bonding, the position of the laminated body 7 including the sheet electrodes attached to the welding jig is suppressed or prevented by the positioning guide 8 and the upper surface pressing body 9. , Ultrasonic welding horn 12
The influence of the pulling of the electrode tabs 6a (6b) due to the lowering was also reduced (or avoided), and no occurrence of a short circuit inside the laminate 7 was observed. That is, the laminated body 7 can maintain the original laminated state and position with high accuracy without causing dimensional change and deformation, and can form a high-quality electrode group.
【００２６】本発明は上記例示に限定されるものでな
く、発明の趣旨を逸脱しない範囲でいろいろの変形を採
ることができる。The present invention is not limited to the above examples, and various modifications can be made without departing from the spirit of the invention.
【００２７】[0027]
【発明の効果】請求項１の発明によれば、電極タブ同士
の超音波接合に当たり、シート状電極を含む積層体は、
位置決めガイドによって電極タブの導出辺を除く他の辺
で水平方向の位置ズレが防止され、また、上面押圧体に
って全水平方向の位置ズレ防止が助長される。つまり、
超音波溶接機のホーンが下降して電極タブを引っ張る状
態を採ったときでも、積層体自体の位置ズレが全面的に
抑制・防止されるので、内部での短絡発生の恐れも解消
し、高品質の電極群を歩留まりよく提供できる。According to the first aspect of the present invention, in the ultrasonic bonding of the electrode tabs, the laminate including the sheet-like electrodes is
The positioning guide prevents horizontal misalignment on other sides except the lead-out side of the electrode tabs, and the upper surface pressing body promotes prevention of misalignment in all horizontal directions. That is,
Even when the horn of the ultrasonic welding machine descends and pulls the electrode tabs, the displacement of the laminate itself is completely suppressed and prevented, eliminating the possibility of internal short circuit, A high quality electrode group can be provided with good yield.
【図１】実施例に係る電極タブ溶接治具にシート状電極
を含む積層体を装着した状態を示す平面図。FIG. 1 is a plan view showing a state in which a laminate including a sheet-like electrode is mounted on an electrode tab welding jig according to an embodiment.
【図２】実施例に係る電極タブの溶接治具の使用例を示
す模式図で、 (a)はシート状電極を含む積層体を装着し
た状態を示す側面図、 (b)は超音波溶接機で電極タブ同
士を積層的に接合一体化する状態を示す側面図。FIG. 2 is a schematic view showing an example of use of a welding jig for an electrode tab according to an embodiment, (a) is a side view showing a state where a laminate including a sheet-like electrode is mounted, and (b) is ultrasonic welding. FIG. 4 is a side view showing a state in which electrode tabs are joined and integrated in a laminated manner by a machine.
【図３】従来の電極タブ溶接治具にシート状電極を含む
積層体を装着した状態を示す平面図。FIG. 3 is a plan view showing a state in which a laminate including a sheet electrode is mounted on a conventional electrode tab welding jig.
１，７……電池用電極シートを含む積層体 ２，５……プレート 3a，3b，6a，6b……電極タブ ４，８……位置決めガイド ９……上面押圧体 10……押圧用の平板 11……超音波溶接機のアンビール 12……超音波溶接機のホーン 1,7 ... Laminated body including battery electrode sheet 2,5 ... Plate 3a, 3b, 6a, 6b ... Electrode tab 4,8 ... Positioning guide 9 ... Top pressing body 10 ... Pressing flat plate 11 ... Ambil of ultrasonic welding machine 12 ... Horn of ultrasonic welding machine
Claims (1)
極活物質層を担持させた電池用電極シートを含む積層体
を載置するプレートと、 前記プレート面に設けられ、載置される積層体の電極タ
ブが導出する辺を除く他の側辺に対接して積層体を位置
決めする位置決めガイドと、 前記位置決め・載置される積層体の上面側を押圧して固
定する上面押圧体と、を有することを特徴とする電池用
のタブ溶接治具。1. A plate for mounting a laminate including a battery electrode sheet in which an electrode active material layer is supported on a current collector having an electrode tab led out on one side; and a plate provided on the plate surface and mounted. A positioning guide for positioning the laminate in contact with other sides other than the side from which the electrode tabs of the laminate are led out; and an upper surface pressing body for pressing and fixing the upper surface of the laminated body to be positioned and placed. And a tab welding jig for a battery, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11055566A JP2000251882A (en) | 1999-03-03 | 1999-03-03 | Tab welding jig for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11055566A JP2000251882A (en) | 1999-03-03 | 1999-03-03 | Tab welding jig for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000251882A true JP2000251882A (en) | 2000-09-14 |
Family
ID=13002272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11055566A Withdrawn JP2000251882A (en) | 1999-03-03 | 1999-03-03 | Tab welding jig for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000251882A (en) |
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| JP2008059948A (en) * | 2006-08-31 | 2008-03-13 | Fdk Corp | Manufacturing method of storage element |
| WO2011012207A1 (en) * | 2009-07-31 | 2011-02-03 | Daimler Ag | Device and method for producing a single cell for a battery |
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| WO2011118565A1 (en) * | 2010-03-26 | 2011-09-29 | 三菱重工業株式会社 | Battery and ultrasonic welding system used in manufacture of said battery |
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| WO2011012207A1 (en) * | 2009-07-31 | 2011-02-03 | Daimler Ag | Device and method for producing a single cell for a battery |
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| CN104439727A (en) * | 2014-11-20 | 2015-03-25 | 东莞市德尔能新能源科技有限公司 | Clamp for battery laser welding |
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