新型炭材料2017,Vol.32Issue(6):572-580,9.DOI:10.1016/S1872-5805(17)60138-0
不同导电添加剂对SiO/C锂离子电池性能的影响
The influence of conductive additives on the performance of a SiO/C composite anode in lithium-ion batteries
摘要
Abstract
Two conductive additives, carbon black (Super-P) and vapor-grown carbon fibers (VGCFs), were used in 2. 5 Ah Li ion batteries using LiCoO2 as the cathode and a SiO/C composite as the anode. The electrode shape, peel strength, electrolyte ab-sorption, electrolyte storage capacity, volume change and the electrochemical performance were investigated. Results indicate that both batteries have high energy densities ( more than 600 Wh/L) , but the batteries with VGCFs have the better low temperature per-formance, longer cycle life, higher rate capability and lower volume expansion, which is ascribed to the superior conductive network formed by the VGCFs.关键词
SiO/C负极锂离子电池/VGCF/倍率性能/循环寿命Key words
SiO/C anode Lithium-ion battery/VGCF/Rate capabilities/Cycle life分类
化学化工引用本文复制引用
滕鑫,许洪亮,刘琦,石丽丽,盖亮,王垒,杨裕生,吴锋..不同导电添加剂对SiO/C锂离子电池性能的影响[J].新型炭材料,2017,32(6):572-580,9.基金项目
教育部"新世纪优秀人才支持计划" (NCET-12-0047) (NCET-12-0047)
国家重点基础研究"973"计划项目(2015CB251100) (2015CB251100)
北京高等院校能源电池和化学能源材料工程研究中心项目. Program for New Century Excellent Talents in University (NCET-12-0047) (NCET-12-0047)
National Basic Research Program of China (2015CB251100) (2015CB251100)
Program of Beijing Higher Institution Engineering Research Center of Power Battery and Chemical Energy Materials. ()