锂离子电池在消费类电子产品、电动汽车和储能等领域得到了广泛的应用。但低温条件下,由于电池的阻抗增大,极化增强;会出现析锂现象、脱嵌锂不平衡,导致容量衰减、循环性能下降等问题,严重影响锂离子电池性能的发挥。针对影响锂离子电池低温性能的关键因素:电解液、电极材料以及工艺因素等方面进行系统地分析和总结,旨在探索制约锂离子电池性能的关键因素,促进锂离子电池的行业发展。
Li-ion battery has been widely used in consumer electronics,electric vehicles and energy storage.However,under low temperature condition,the increase of impedance and polarization performance of batteries lead to the growth of Li dendrites and intercalation/deintercalation imbalance of Li-ion,resulting in capacitance decay,short cycling performance and other problems.It seriously affects the performance of Li-ion battery.The key factors affecting the low temperature performance of Li-ion battery were analyzed and summarized systematically in the fields of electrolyte,electrode material and process factors.It aimed to explore the key factors that restricted the performance of Li-ion battery,promoting the development of Li-ion battery.
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基金资助
江苏省自然科学基金项目(BK20191041);江苏省高校自然科学基金面上项目(19KJB480011);无锡商业职业技术学院校级课题(KJZX21604)
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