Research Progress of Thermal Management Technology for Lithium-ion Batteries
[Purposes]With the widespread application of lithium-ion batteries,thermal management tech-nology,which affects the performance and safety of lithium batteries,has received considerable attention and research.[Methods]This paper analyzes the differences among passive thermal management,active thermal management and composite thermal management based on phase change materials,and summa-rizes the advantages and disadvantages of free cooling,forced air cooling and so on.[Findings]Both im-mersion liquid cooling and liquid cooler have better cooling effects than forced air cooling and natural cooling,but their application is limited by product cost and sealing performance.[Conclusions]By com-paring the three thermal management technologies,it is known that active thermal management has bet-ter cooling effects than the passive way.Composite thermal management technology based on phase change materials,with better heat transfer potential,will also be rapidly developed.