ELECTRIC POWER STORAGE MODULE

• Main Authors: INOUE HIROSHI, SAKAGUCHI MAKOTO, TAMARU KOJIRO
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide an electric power storage module configured to prevent an electrolyte from spattering.SOLUTION: An electric power storage module comprises: a module body having an electrode stack including a plurality of stacked electrodes; and a pressure-regulating valve 22 attached to the module body. The pressure-regulating valve 22 is provided with: a housing 23 having a bottom wall 32 provided with a through hole 33 that communicates with an internal space that is formed between the plurality of electrodes and accommodates an electrolyte, a side wall 40 facing the bottom wall 32 in a Y-axis direction, and a protrusion 43 provided on the side wall 40; and a valve 30 accommodated inside the housing 23 so as to close off the through hole 33. The side wall 40 is provided with a first hole 41 that is open on an external surface 40a of the side wall 40, and a second hole 42 that is open on the external surface 40a of the side wall 40 and positioned vertically above the first hole 41. The protrusion 43 protrudes outward along the Y-axis direction on the external surface 40a and extends so as to divide the first hole 41 and the second hole 42 when viewed from the Y-axis direction.SELECTED DRAWING: Figure 12 【課題】電解液が飛び散ることを抑制可能な蓄電モジュールを提供する。【解決手段】蓄電モジュールは、積層された複数の電極を含む電極積層体を有するモジュール本体と、モジュール本体に取り付けられる圧力調整弁２２と、を備える。圧力調整弁２２は、複数の電極間に形成されて電解液が収容される内部空間と連通する貫通孔３３が設けられた底壁３２と、Ｙ軸方向において底壁３２と対向する側壁４０と、側壁４０に設けられた突起４３と、を有するハウジング２３と、貫通孔３３を塞ぐようにハウジング２３内に収容された弁体３０と、を備える。側壁４０には、側壁４０の外面４０ａに開口する第１孔４１と、側壁４０の外面４０ａに開口し、第１孔４１よりも鉛直上方に位置する第２孔４２と、が設けられている。突起４３は、外面４０ａにおいて、Ｙ軸方向に沿って外方に突出し、Ｙ軸方向から見て第１孔４１と第２孔４２とを仕切るように延在している。【選択図】図１２