化成工艺对高镍三元锂离子电池的性能影响  

Effect of Formation Process on the Performance of High Nickel Three Element Lithium Ion Battery

作　　者：杨涛 马梦月 刘文凤 董红玉[3] 杨书廷[3] Yang Tao;Ma Mengyue;Liu Wenfeng;Dong Hongyu;Yang Shuting(Henan Lithium Power Co.,Ltd.,Xinxiang 453000,China;The Battery Research Institute of Henan,Xinxiang 453000,China;Henan Normal University,Xinxiang 453000,China)

机构地区：[1]河南锂动电源有限公司,河南新乡453000 [2]河南电池研究院有限公司,河南新乡453000 [3]河南师范大学,河南新乡453000

出　　处：《山东化工》2020年第11期9-10,13,共3页Shandong Chemical Industry

摘　　要：高电压锂离子电池的生产,其化成方法非常关键,直接影响电池的容量发挥及循环寿命。以高镍三元材料进行18650型锂离子电池制作,通过预充电高温老化,采用限容化成的方法,有利于负极表面形成更为致密、稳定的SEI膜,可以有效减少高压下电解液的分解及锂的过多损耗,提高电池容量的一致性和电性能。The production of high-voltage lithium-ion battery,its formation method is very important,directly affects the capacity of the battery and cycle life.The 18650-type lithium-ion battery is made of high nickel ternary materials.Through pre-charge,high temperature aging and capacity limiting,a more compact and stable SEI film can be formed on the anode surface,which can effectively reduce the decomposition of electrolyte and excessive loss of lithium under high voltage,improving the consistency of battery capacity and electrical performance.

关 键 词：锂离子电池 化成 高镍三元 SEI膜 

分 类 号：TM911[电气工程—电力电子与电力传动] TQ138.1[化学工程—无机化工]