US 12,294,067 B2
Method, apparatus and system for thermal runaway processing and storage medium
Xiaobo Chen, Ningde (CN); Jianhuang Ke, Ningde (CN); and Yao Li, Ningde (CN)
Assigned to Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Jun. 8, 2022, as Appl. No. 17/834,928.
Application 17/834,928 is a continuation of application No. PCT/CN2021/131273, filed on Nov. 17, 2021.
Claims priority of application No. 202011626769.6 (CN), filed on Dec. 31, 2020.
Prior Publication US 2022/0302514 A1, Sep. 22, 2022
Int. Cl. H01M 10/48 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/6567 (2014.01)
CPC H01M 10/482 (2013.01) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6567 (2015.04)] 9 Claims
OG exemplary drawing
 
1. A method for thermal runaway processing, performed by a battery management system (BMS), comprising:
obtaining a battery parameter for each of three or more battery modules, wherein the three or more battery modules form a power battery pack, and each of the three or more battery modules is communicatively coupled to the BMS;
determining that a thermal runaway is occurred in a first battery module based on the battery parameter for each of the three or more battery modules;
obtaining a second battery module based on the first battery module, wherein the second battery module corresponds to at least one of the three or more battery modules excluding the first battery module in the power battery pack; and
supplying power to a chiller system with the second battery module, wherein the chiller system is configured to cool the power battery pack,
wherein obtaining the second battery module based on the first battery module comprises:
selecting, from the three or more battery modules excluding the first battery module in the power battery pack, the second battery module based on a rated voltage of the chiller system and a battery temperature in the power battery pack or based on the rated voltage of the chiller system and a temperature of a cooling liquid, wherein an output voltage of the second battery module is greater than or equal to the rated voltage of the chiller system.