US 12,015,135 B2
Lithium ion batteries and battery modules
Hongbin Zhu, Jiangsu (CN); Xiaoqin Zhang, Jiangsu (CN); and Xiang Yu, Jiangsu (CN)
Assigned to State Grid Jiangsu Electric Power Research Institute, (CN); and Jiangsu Electric Power Research Institute Co., Ltd., (CN)
Appl. No. 17/259,469
Filed by State Grid Jiangsu Electric Power Research Institute, Jiangsu (CN); and Jiangsu Electric Power Research Institute Co., Ltd., Jiangsu (CN)
PCT Filed May 29, 2019, PCT No. PCT/CN2019/088968
§ 371(c)(1), (2) Date Jan. 11, 2021,
PCT Pub. No. WO2020/224016, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 201910373491.7 (CN), filed on May 7, 2019.
Prior Publication US 2022/0052393 A1, Feb. 17, 2022
Int. Cl. H01M 10/6556 (2014.01); H01M 10/0525 (2010.01); H01M 10/48 (2006.01); H01M 50/358 (2021.01); H01M 50/383 (2021.01)
CPC H01M 10/6556 (2015.04) [H01M 10/0525 (2013.01); H01M 10/486 (2013.01); H01M 50/358 (2021.01); H01M 50/383 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A lithium ion battery module, comprising:
a sealing box body filled with a flame retardant gas; and
a lithium ion battery provided in the sealing box body, which comprises a housing in which a positive electrode, a negative electrode, and an electrolyte are provided, wherein a distance exists between a bottom of the lithium ion battery and a bottom of the sealing box body,
wherein,
a part on an upper portion of the housing and a part on a lower portion of the housing are made from the fusible material;
when the temperature in the housing exceeds the set threshold, the part made from the fusible material on the upper portion of the housing is penetrated to form a connecting channel where a flame retardant gas is introduced, and the part made from the fusible material on the lower portion of the housing is penetrated to form a release channel where the electrolyte flows out to separate from the positive electrode and the negative electrode.