US 12,463,284 B2
Battery pack and electric tool
Yoshiyuki Bannai, Kyoto (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed by MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed on Sep. 21, 2022, as Appl. No. 17/949,639.
Application 17/949,639 is a continuation of application No. PCT/JP2021/010132, filed on Mar. 12, 2021.
Claims priority of application No. 2020-052357 (JP), filed on Mar. 24, 2020.
Prior Publication US 2023/0013558 A1, Jan. 19, 2023
Int. Cl. H01M 50/296 (2021.01); H01M 50/213 (2021.01); H01M 50/24 (2021.01); H01M 50/247 (2021.01); H01M 50/548 (2021.01)
CPC H01M 50/296 (2021.01) [H01M 50/213 (2021.01); H01M 50/24 (2021.01); H01M 50/247 (2021.01); H01M 50/548 (2021.01); H01M 2220/30 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A battery pack comprising:
an exterior case;
a cylindrical battery cell including a positive electrode terminal part at one end and a negative electrode terminal part at the other end; and
a metal plate connected to the positive electrode terminal part or the negative electrode terminal part,
wherein
the battery cell includes a peripheral protrusion around the positive electrode terminal part or the negative electrode terminal part,
the metal plate includes a protrusion that faces the peripheral protrusion,
the protrusion is disposed in close contact with a whole periphery of the peripheral protrusion, with a first insulating part interposed therebetween and wherein the protrusion has a slope formed outward from a region where the metal plate faces the positive electrode terminal part.