主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

Fire Science and Technology ›› 2021, Vol. 40 ›› Issue (1): 81-84.

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Research on thermal simulation method of lithium battery based on monomer simplification

WANG Xiao-hui1, RONG Jian-hua2, YANG Xiang-qian3   

  1. 1. Zhejiang Industry and Trade Vocational and Technical College, Zhejiang Wenzhou 325000, China; 2. Changsha University of Science and Technology, Hunan Changsha 410000, China; 3. Wenzhou Transportation Group, Zhejiang Wenzhou 325000, China
  • Online:2021-01-15 Published:2021-01-15

Abstract: Based on requirements of close to reality and fully consider the design, the thermal simulation model of lithium battery developed towards refinement continuously to cover various key special characteristics. However, the refined modeling of battery cells inevitably means huge computer calculation. If the battery cells divided by the refined grid are simply copied and enlarged to the module and system levels, the existing numerical calculation technical conditions is difficult to meet the needs of computer calculation. Based on the simplified model of the battery cell model, a thermal simulation model of the ternary high specific energy battery module was established and the corresponding transient calculation program was developed. The results showed that the amount of calculation was greatly reduced and it is in good agreement with the measured value, which verified the speed and effectiveness of the thermal simulation method for ternary high specific energy battery module.

Key words: fire protection, ternary lithium battery, battery cell, finite element, thermal simulation