关键词: 锂离子电池, 热管理, 热管技术, 超薄型, 相变材料

Abstract: With environment degradation and energy source depletion，high energy density lithium-ion power battery has attracted more and more attention. However，its wide use is still limited by characteristics，longevity and safety of lithium-ion. Lithium-ion can only work safely and effectively in a reasonable temperature period between 25℃ to 40 ℃，that requires a feasible thermal management system. This paper reviews the research progress of several cooling technologies used for lithium-ion battery，including air-cooling，liquid-cooling，phase change material cooling and heat pipe cooling. The applied lithium-ion thermal management system nowadays is complicated in structure，huge in size，heavy in weight and requires extra energy consumption. Hence，ultra-thin heat pipe is proposed as one of the solutions，and coupling of ultra-thin heat pipe with phase change material will meet the demand of heat dissipation and storage for lithium-ion power battery thermal management system.

Key words: lithium-ion power battery, thermal management, heat pipe, ultra-thin, phase change material