US 12,444,796 B2
Battery and manufacturing method of battery
Ichirou Murata, Setsu (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed by PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed on Jun. 22, 2022, as Appl. No. 17/808,235.
Claims priority of application No. 2021-104579 (JP), filed on Jun. 24, 2021.
Prior Publication US 2022/0416339 A1, Dec. 29, 2022
Int. Cl. H01M 50/186 (2021.01); H01M 50/184 (2021.01); H01M 50/564 (2021.01); H01M 10/04 (2006.01); H01M 50/103 (2021.01); H01M 50/172 (2021.01); H01M 50/176 (2021.01); H01M 50/528 (2021.01); H01M 50/536 (2021.01); H01M 50/553 (2021.01)
CPC H01M 50/186 (2021.01) [H01M 50/184 (2021.01); H01M 50/564 (2021.01); H01M 10/0413 (2013.01); H01M 10/0422 (2013.01); H01M 50/103 (2021.01); H01M 50/172 (2021.01); H01M 50/176 (2021.01); H01M 50/528 (2021.01); H01M 50/536 (2021.01); H01M 50/553 (2021.01); Y02E 60/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A battery comprising:
an electrode body that comprises a positive electrode and a negative electrode;
a battery case that comprises an outer package having an opening for accommodating the electrode body and comprises an opening-seal plate for sealing the opening;
a terminal that is electrically connected to the positive electrode or the negative electrode and that penetrates a terminal taking out hole of the opening-seal plate; and
a conductive member that is connected to the terminal,
wherein the conductive member comprises a penetration hole into which the terminal is inserted,
the penetration hole comprises a taper part having an inclination for making an inner diameter become gradually larger along the insertion direction,
here, the terminal is caulked at the taper part in a state of being arranged in the penetration hole,
an outer circumference smoothing part having a step difference is formed at an outer circumferential edge of the caulked part, and
a join part exists at which the outer circumference smoothing part and an edge part of the penetration hole are joined.