US 12,444,799 B2
Battery apparatus
Hironori Ogura, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Apr. 13, 2022, as Appl. No. 17/659,060.
Claims priority of application No. 2021-070236 (JP), filed on Apr. 19, 2021.
Prior Publication US 2022/0336895 A1, Oct. 20, 2022
Int. Cl. H01M 50/213 (2021.01); A62C 3/16 (2006.01); H01M 10/0525 (2010.01); H01M 50/227 (2021.01); H01M 50/231 (2021.01); H01M 50/233 (2021.01); H01M 50/247 (2021.01); H01M 50/256 (2021.01); H01M 50/264 (2021.01)
CPC H01M 50/213 (2021.01) [A62C 3/16 (2013.01); H01M 50/227 (2021.01); H01M 50/231 (2021.01); H01M 50/233 (2021.01); H01M 50/247 (2021.01); H01M 50/256 (2021.01); H01M 50/264 (2021.01); H01M 10/0525 (2013.01); H01M 2200/00 (2013.01); H01M 2220/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery apparatus comprising:
one or more battery cells mounted in a cell holder;
a fire-extinguishing agent, which includes or contains a component, chemical or composition that has a fire-suppressing effect;
a flame-resistant member having a limiting oxygen index that is higher than the oxygen concentration in the atmosphere; and
a casing made of a polymer;
wherein:
the flame-resistant member comprises a channel having a base, a first side wall extending from the base and a second side wall projecting from the base,
the flame-resistant member is mounted in the casing,
the cell holder is mounted in the channel of the flame-resistant member such that a longitudinal axis of each of the one or more battery cells intersects the first and second side walls, and the fire-extinguishing agent is interposed between the cell holder and the flame-resistant member.