LAMINATE TYPE POWER STORAGE DEVICE AND SHORT-CIRCUIT INSPECTION METHOD THEREFOR
To facilitate short-circuit inspection of a laminate type power storage device.SOLUTION: An exterior body 40 encloses an electrode lamination portion 21 by one or a plurality of laminate films 41. The inner surfaces of one or a plurality of laminate films 41 are superimposed on the circumference of...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
11.10.2021
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Subjects | |
Online Access | Get full text |
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Summary: | To facilitate short-circuit inspection of a laminate type power storage device.SOLUTION: An exterior body 40 encloses an electrode lamination portion 21 by one or a plurality of laminate films 41. The inner surfaces of one or a plurality of laminate films 41 are superimposed on the circumference of the electrode lamination portion 21, and the laminate film 41 has a mating surface 41c to which a thermoplastic resin layer is heat-sealed. A positive electrode current collecting tab 22 and a negative electrode current collecting tab 23 protrude from the mating surface 41c to the outside of the one or plurality of laminate films 41. At least a part of the laminate film 41 which is located outside of the mating surface 41c has a metal exposed portion 60 for inspecting the potential of a metal sheet of the laminate film 41 around the circumference of the electrode lamination portion 21.SELECTED DRAWING: Figure 1
【課題】ラミネート型蓄電デバイスの短絡検査の容易化【解決手段】外装体40は、1または複数枚のラミネートフィルム41によって電極積層部21を包んでいる。電極積層部21の周囲には、1または複数枚のラミネートフィルム41の内側面が重ね合わされ、かつ、熱可塑性樹脂層が熱融着した合わせ面41cを有している。合わせ面41cから1または複数枚のラミネートフィルム41の外に正極集電タブ22と負極集電タブ23がはみ出ている。電極積層部21の周囲において合わせ面41cよりも外側の少なくとも一部に、ラミネートフィルム41の金属シートの電位を検査するための金属露出部60を有している。【選択図】図1 |
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Bibliography: | Application Number: JP20200066777 |