Title:
STACK CASE AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2022182562
Kind Code:
A
Abstract:
To solve a problem of conventional stack cases that cutting is needed for a lower case after the lower case is released from a die.SOLUTION: A stack case of the invention includes: a lower case 10 which houses a battery stack 31, in which multiple battery cells are laminated, and has a recessed shape; and an upper case 20 which closes an opening of the lower case 10 so as to cover the battery stack 31. The lower case 10 has: a first wall surface 11 with which an end as seen in a lamination direction of the battery stack 31 is butted; and a second wall surface 12 provided at a position facing the first wall surface 11. A height of the first wall surface 11 from a bottom surface is set so as to be lower than a height of the second wall surface 12 from the bottom surface.SELECTED DRAWING: Figure 2
Inventors:
KATAYAMA YUJI
Application Number:
JP2021090179A
Publication Date:
December 08, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
PRIMEARTH EV ENERGY CO LTD
International Classes:
H01M50/204; H01M50/224; H01M50/262; H01M50/271
Attorney, Agent or Firm:
Ken Ieiri