基于单体简化的锂电池热仿真方法研究  

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

作　　者：王晓慧[1] 荣见华[2] 杨向前 WANG Xiao-hui;RONG Jian-hua;YANG Xiang-qian(Zhejiang Industry and Trade Vocational and Technical College,Zhejiang Wenzhou 325000,China;Changsha University of Science and Technology,Hunan Changsha 410000,China;Wenzhou Transportation Group,Zhejiang Wenzhou 325000,China)

机构地区：[1]浙江工贸职业技术学院,浙江温州325000 [2]长沙理工大学,湖南长沙410000 [3]温州交运集团,浙江温州325000

出　　处：《消防科学与技术》2021年第1期81-84,共4页Fire Science and Technology

摘　　要：基于贴近实际并充分考虑设计需求,锂电池热仿真模型不断地向精细化发展,并尽量涵盖各种关键特性。但由此带来了锂电池单体的精细化建模计算量不断增大,若将精细化网格划分的电池单体模型加以复制并放大至模块和系统层次,其计算量十分巨大。提出基于单体简化的电池热仿真模型,开发了三元高比能锂电池的瞬态计算程序,结果表明,计算量大幅下降且与实测值能够较好地吻合,验证了三元高比能电池模块热仿真方法的速度和有效性。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.

关 键 词：消防 三元锂电池 电池单体 有限元 热仿真 

分 类 号：X932[环境科学与工程—安全科学] TM912[电气工程—电力电子与电力传动]