低温锂离子电池研究进展

随着能源需求的日益高涨，锂离子电池（LIB）在各个领域内的应用愈发广泛。为满足极端气候等特殊应用环境对储能器件的需求，LIB需拓宽其工作温度范围。从材料和电池结构角度详细总结了应用于低温条件LIB的最新研究进展。首先，分析了限制LIB低温性能的根本原因；然后，分别从电解液的研发与优化、电极材料的改性和开发、新型电池体系的开发、电池热管理系统（BTMS）设计4个方面归纳并讨论了在低温情况下改善LIB性能的途径和方法；最后，总结了低温LIB研究亟待解决的问题，并为新一代低温LIB的发展提出了可行的研究方向。 

Research progress of low-temperature lithium-ion battery

With the rising of energy requirements, Lithium-Ion Battery (LIB) have been widely used in various fields. To meet the requirement of stable operation of the energy-storage devices in extreme climate areas, LIB needs to further expand their working temperature range. In this paper, we comprehensively summarize the recent research progress of LIB at low temperature from the perspectives of material and the structural design of battery. First, the fundamental reasons of limiting low-temperature performance of LIB are analyzed. Then, the rational strategies for improving the low-temperature performance of LIB are discussed from four aspects: the research and optimization of electrolyte, the modification and exploitation of electrode materials, the development of new types of battery system as well as the design of Battery Thermal Management System (BTMS). Finally, the urgent problems to be solved in low-temperature LIB research are summarized, and the feasible research direction is suggested for the development of a new generation of low-temperature LIB.