US 12,068,507 B2
Terminal component and secondary battery and assembled battery each including the terminal component
Takahiro Sakurai, Nagoya (JP); Kosuke Suzuki, Toyota (JP); and Kota Ohata, Toyota (JP)
Assigned to PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed by PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/876,054.
Claims priority of application No. 2021-130091 (JP), filed on Aug. 6, 2021.
Prior Publication US 2023/0039284 A1, Feb. 9, 2023
Int. Cl. H01M 50/557 (2021.01); H01M 50/209 (2021.01); H01M 50/516 (2021.01); H01M 50/562 (2021.01)
CPC H01M 50/557 (2021.01) [H01M 50/209 (2021.01); H01M 50/516 (2021.01); H01M 50/562 (2021.01)] 7 Claims
OG exemplary drawing
 
1. A terminal component comprising:
a metal first member;
a metal, plate-like second member;
a metal joining portion at an intersection of the first and second members along a boundary surface where the first member and the second member are stacked in contact with each other; and
a raised portion protruding from an opposite surface of the second member on an opposite side of the second member from the boundary surface, the raised portion including a flat upper surface, wherein
the opposite surface of the second member on the opposite side of the second member from the boundary surface includes an uppermost surface portion that is a portion of the opposite surface of the second member at the greatest distance from the boundary surface in a direction perpendicular to the boundary surface, and a recessed portion defined into the uppermost surface portion to extend toward the metal joining portion,
the raised portion protrudes toward the uppermost surface portion from a bottom portion of the recessed portion,
the opposite surface of the second member further includes a cavity portion extending deeper into the second member from the uppermost surface portion than the recessed portion toward the metal joining portion,
the cavity portion includes a zigzag portion protruding from a bottom surface of the cavity portion in a zigzag shape, and
the raised portion is continuously formed to surround the metal joining portion and the zigzag portion.