MANUFACTURING METHOD OF POWER STORAGE MODULE, AND POWER STORAGE MODULE

To provide a manufacturing method of power storage module capable of inhibiting degradation of sealability of a laminate, and to provide a power storage module.SOLUTION: A manufacturing method of power storage module 12 includes a first step of laminating multiple electrode bodies 31, including a bi...

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Bibliographische Detailangaben
Hauptverfasser: OKUDA SHINYA, KISHINE SHO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a manufacturing method of power storage module capable of inhibiting degradation of sealability of a laminate, and to provide a power storage module.SOLUTION: A manufacturing method of power storage module 12 includes a first step of laminating multiple electrode bodies 31, including a bipolar electrode 32 including a metal foil (electrode plate 34), a positive electrode active material layer (positive electrode 36) provided on one side of the metal foil, and a negative electrode active material layer (negative electrode 38) provided on the other side of the metal foil, and a seal member 52 provided like a frame along the felly of the metal foil and extending to the outside thereof, so that the seal members 52 are duplicated, a second step of forming a new end 52q in the seal members 52 by cutting the ends 52w of multiple seal members 52 so that the metal foil is not cut, after the first step, and a third step of sealing the seal members 52 together in the new end 52q.SELECTED DRAWING: Figure 7 【課題】積層体のシール性の低下を抑制可能な蓄電モジュールの製造方法、及び、蓄電モジュールを提供する。【解決手段】蓄電モジュール12の製造方法は、金属箔(電極板34)、金属箔の一方面に設けられた正極活物質層(正極36)、及び、金属箔の他方面に設けられた負極活物質層(負極38)を含むバイポーラ電極32と、金属箔の外縁に沿って枠状に設けられ金属箔の外側に延在するシール部材52と、を含む複数の電極体31を、シール部材52同士が重複するように積層する第1工程と、第1工程の後に、金属箔を切断しないように複数のシール部材52の端部52wを切断することによってシール部材52に新たな端部52qを形成する第2工程と、新たな端部52qにおいてシール部材52同士をシールする第3工程と、を備える。【選択図】図7