US 12,469,938 B2
Method for producing power storage device
Tsuyoshi Ehara, Toyota (JP); Yozo Uchida, Toyota (JP); Yuki Sato, Toyota (JP); Syoichi Tsuchiya, Toyota (JP); Masataka Asai, Toyota (JP); Tsuyoshi Asano, Toyota (JP); Masahiro Uchimura, Toyota (JP); Shigeru Matsumoto, Toyohashi (JP); and Yasuaki Nagano, Kosai (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP); and TOYOTA BATTERY CO., LTD., Shizuoka-Ken (JP)
Filed by Prime Planet Energy & Solutions, Inc., Tokyo (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP); and PRIMEARTH EV ENERGY CO., LTD., Shizuoka-ken (JP)
Filed on Oct. 11, 2023, as Appl. No. 18/484,449.
Claims priority of application No. 2022-185481 (JP), filed on Nov. 21, 2022.
Prior Publication US 2024/0170814 A1, May 23, 2024
Int. Cl. B29C 45/14 (2006.01); H01M 50/103 (2021.01); H01M 50/15 (2021.01); H01M 50/176 (2021.01); H01M 50/557 (2021.01); H01M 50/564 (2021.01); B29K 81/00 (2006.01); B29L 31/00 (2006.01); B29L 31/34 (2006.01)
CPC H01M 50/564 (2021.01) [B29C 45/14008 (2013.01); B29C 45/14311 (2013.01); B29C 45/14467 (2013.01); H01M 50/103 (2021.01); H01M 50/15 (2021.01); H01M 50/176 (2021.01); H01M 50/557 (2021.01); B29C 2045/14327 (2013.01); B29K 2081/04 (2013.01); B29L 2031/3468 (2013.01); B29L 2031/7146 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for producing a power storage device,
the power storage device including:
a case member including an insertion hole;
a terminal member inserted in the insertion hole of the case member; and
a resin member joined to the case member and the terminal member while insulating between the case member and the terminal member, to fix the terminal member to the case member,
the method comprising:
insert-molding the resin member in a state where the terminal member is inserted in the insertion hole of the case member,
wherein insert-molding the resin member is performed using a molding mold by:
placing the insertion hole of the case member in front of a gate through which molten resin is injected into a cavity defined by the case member, the terminal member, and the molding mold; and
injecting the molten resin through the gate into the cavity, so that the molten resin flows, through the insertion hole, to an opposite gate-side space located on an opposite side from the gate relative to the case member, and spreads over the entire cavity to form the resin member.