Title:
POWER STORAGE DEVICE
Document Type and Number:
Japanese Patent JP2022156908
Kind Code:
A
Abstract:
To provide a power storage device capable of improving flexural rigidity while suppressing application of excessive force to a power storage cell when the power storage cell expands.SOLUTION: A power storage device 100 includes a laminate in which a plurality of power storage cells 30 are laminated, and a storage case 10 in which the laminate is stored. The storage case 10 includes a pair of walls 111 and 121 provided such that the laminate is positioned between the walls in the stacking direction. The pair of walls 111 and 121 include central portions 111a and 121a located in the center in a plane direction orthogonal to the stacking direction, and outer peripheral portions 111b and 121b located around the central portions 111a and 121a. The walls 111 and 121 have a concave shape in which the central portions 111a and 121a approach the laminate with respect to the outer peripheral portions 111b and 121b. The laminate is sandwiched between the central portions 111a and 121a included in the pair of walls 111 and 121, respectively.SELECTED DRAWING: Figure 1
Inventors:
KATO MASASHI
Application Number:
JP2021060844A
Publication Date:
October 14, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M50/242; H01M50/184; H01M50/211; H01M50/557; H01M50/588; H01M50/59
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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