储能科学与技术2025，Vol.14Issue(4)：1496-1506,11.DOI:10.19799/j.cnki.2095-4239.2024.0866
基于双通道并行串联式液冷板下锂电池温升特性数值分析
Numerical analysis of temperature rise characteristics of lithium battery based on dual-channel parallel series liquid cooling plate
摘要
Abstract
Among the various cooling methods for lithium battery energy storage systems,liquid-cooled cooling systems have significant advantages.However,the performance of liquid-cooled cooling systems are significantly influenced by the type and structure of liquid-cooled plates.To address the thermal safety problem of lithium-ion batteries,a 280 Ah lithium-ion battery was numerically analyzed using ANSYS FLUENT.In addition,a three-dimensional transient heat generation model was constructed based on Bernardi's heat generation rate,fluid momentum conservation equations,and energy conservation equation to simulate the change in temperature field of lithium battery pack at high rate of operation,and to evaluate the cooling effect of three connection methods of dual-channel parallel series liquid cooling plate scheme.The effects of coolant flow rate,initial temperature of coolant and channel height of the liquid cooling plate on the cooling effect of the lithium battery pack were analyzed.The optimal cooling scheme of the liquid cooling plate was thus obtained.The results demonstrated that among the three connection schemes examined,the third scheme demonstrated the best heat dissipation performance,ensuring a uniform temperature distribution across the battery pack.Based on the third connection scheme,as the coolant flow rate increased,the maximum temperature of the lithium battery pack changed from a rapid decline in the initial stage to a slow decline.Lowering the inlet temperature of the coolant significantly decreased the maximum temperature of the lithium battery pack.By analyzing and comparing coolant channels with different heights,an appropriate increase in the channel height can effectively improve the heat dissipation performance of the liquid cooling system.Based on this study,the best cooling scheme can be achieved by increasing the coolant flow rate,reducing the coolant inlet temperature,and increasing the flow channel height of the liquid cooling plate structure.关键词
锂电池/液冷板/液冷系统/液冷结构/散热性能Key words
lithium battery/liquid cooling plate/liquid cooling system/liquid-cooled structure/heat dispersion分类
信息技术与安全科学引用本文复制引用
刘顺新,许令平,张建兴,曾光,李昊阳..基于双通道并行串联式液冷板下锂电池温升特性数值分析[J].储能科学与技术,2025,14(4):1496-1506,11.基金项目
河南省科技攻关项目(222102240017,232102241030,252102240083),郑州航院研究生教育创新计划基金项目(2024CX85),郑州航院学科基础创新能力提升专项项目(XKZX24056). （222102240017,232102241030,252102240083）
