Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2018085293
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power storage device capable of adjusting pressure for each accommodation space while avoiding an increase in size, and suppressing loss of battery performance.SOLUTION: A power storage device includes a housing that accommodates a laminate in which a bipolar electrode in which a positive electrode layer is provided on one surface of a current collector and a negative electrode layer is provided on the other surface of the current collector is stacked via a separator, and open valves respectively provided in housing spaces in the housing. The open valve includes two or more communication holes that communicate between each of the two or more housing spaces and the outer surface of the housing, an elastic member disposed in a state of being urged to the outer surface of the housing so as to close the two or more communication holes, and a communicating path that is formed by a space surrounded by the elastic member and the housing and communicates with the outside of the housing, and the communicating hole and a communicating passage nearest to the communicating hole are arranged on the outer surface of the housing such that a distance between the communicating hole and the communicating passage is shorter than the distance between the communicating holes.SELECTED DRAWING: Figure 2
Inventors:
KOTAKE HIROKAZU
Application Number:
JP2016229048A
Publication Date:
May 31, 2018
Filing Date:
November 25, 2016
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H01M2/12; H01M2/02; H01M10/04
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Makoto Takaguchi
Yoshiki Kuroki
Takashi Mikami
Hiromitsu Nakayama
Makoto Takaguchi