US 12,148,941 B1
Battery module and battery pack
Qinyun Wang, Zhejiang (CN); Yunhui Gao, Zhejiang (CN); Ke Chen, Zhejiang (CN); Shengyi Chen, Zhejiang (CN); and Chao Zuo, Zhejiang (CN)
Assigned to Jinko Energy Storage Technology Co., Ltd., Haining (CN)
Filed by Jinko Energy Storage Technology Co., Ltd., Zhejiang (CN)
Filed on Oct. 3, 2023, as Appl. No. 18/480,397.
Claims priority of application No. 202321238497.1 (CN), filed on May 18, 2023.
Int. Cl. H01M 50/24 (2021.01); H01M 50/204 (2021.01); H01M 50/502 (2021.01)
CPC H01M 50/24 (2021.01) [H01M 50/204 (2021.01); H01M 50/502 (2021.01)] 19 Claims
OG exemplary drawing
 
1. A battery module, comprising:
a plurality of cells arranged in sequence;
a first fireproof layer arranged on the plurality of cells and attached to a top surface of each of the plurality of cells;
a pair of end plates and a pair of second fireproof layers;
a plurality of third fireproof layers arranged between adjacent cells of the plurality of cells;
a heating sheet arranged below and in direct contact with the plurality of cells, wherein the heating sheet is configured to heat the plurality of cells; and
a first side plate and a second side plate,
wherein the first fireproof layer comprises a plurality of through holes, each of the plurality of cells corresponding to two of the plurality of through holes,
wherein each of the plurality of cells comprises two poles extending through the corresponding two of the plurality of through holes to protrude from a surface of the first fireproof layer,
wherein the top surface of each of the plurality of cells, excluding the two poles, is entirely covered by the first fireproof layer,
wherein the pair of end plates are arranged on two ends of the plurality of cells, and the pair of second fireproof layers are arranged on the two ends between the plurality of cells and a corresponding end plate of the pair of end plates,
wherein the pair of second fireproof layers and the plurality of third fireproof layers are made of different materials,
wherein the first side plate and the second side plate are connected to the pair of end plates,
wherein the first side plate covers a first surface of the plurality of cells and the second side plate covers a second surface of the plurality of cells, and
wherein no fireproof layer is arranged between the first side plate and the first surface of each of the plurality of cells, and no fireproof layer is arranged between the second side plate and the second surface of each of the plurality of cells.