電池モジュール

Japanese Patent JP7163704

B2

To provide a battery module capable of adjusting pressure in the module body more appropriately by means of a pressure regulation valve.SOLUTION: A valve body 35A is held in compression state, when it is pushed to the bottom wall 36 side by means of a cover 34. Compressibility ratio of the valve body 35A changes according to the pushing amount of the cover 34, and the seal surface pressure of a continuous hole 39 also changes. The valve body 35A has a second portion 52 of lower degree of elasticity than a first portion 51, and the second portion 52 is lowering the sensitivity of seal surface pressure for the pushing amount of the cover 34. In a bipolar battery 2, pressure adjustment in the module body 11 by a pressure adjustment valve 12 is thereby hard to deviate from a desired adjustment state, even when the pushing amount of the cover 34 varies. Consequently, more appropriate pressure adjustment is realized in the bipolar battery 2.SELECTED DRAWING: Figure 6

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Kenji Hamaoka
Taku Inoue
Tomohiro Nakamura
Takayuki Hirose

JP2018188144A

November 01, 2022

October 03, 2018

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KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

H01M10/04; F16K17/04; H01M50/103; H01M50/317; H01M50/325

JP59101357U
JP2013004184A
JP8203489A
JP2009180250A
JP50066118U
JP2018018673A

WO2018159456A1

Yoshiki Hasegawa
Yoshiki Kuroki
Mikami Takashi
Hiromitsu Nakayama

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