电池2017，Vol.47Issue(6)：339-342,4.DOI:10.19535/j.1001-1579.2017.06.006
石墨烯/碳纳米管复合导电剂对LiNi1/3Co1/3Mn1/3O2的影响
Effects of graphene/carbon nanotube composite conductive agent to LiNi1/3Co1/3Mn1/3O2
高坡 1张彦林 1颜健1
作者信息
- 1. 常州第六元素材料科技股份有限公司,江苏常州 213100
- 折叠
摘要
Abstract
The influence of composite conductive agent on properties of LiNi1/3Co1/3Mn1/3O2 was investigated.Graphene/carbon nanotube(CNT) (2∶ 3) composite conductive agent was prepared by ball milling dispersion method.SEM analysis showed that the graphene/CNT composite conductive agent could be evenly dispersed on the surface of LiNi1/3Co1/3Mn1/3O2,a good "dot-linesurface" three-dimensional conductive network structure was formed.Electrochemical impedance spectroscopy (EIS) test demonstrated that the resistance of the battery was reduced by the graphene/CNT composite conductive agent effectively.The cell charge and discharge tests showed that,under the low adding content of 1％,the initial discharge capacity(2.80-4.25 V,0.1 C)of the battery using composite conductive agent was 7 mAh/g higher than that of CNT,19 mAh/g higher than that of carbon black.The specific capacity could reach 128 mAh/g at 10 C rate discharge,which was 24 mAh/g and 58 mAh/g higher than that of CNT and carbon black,respectively.关键词
石墨烯/碳纳米管(CNT)/复合导电剂/LiNi1/3Co1/3Mn1/3O2/锂离子电池Key words
graphene/carbon nanotube(CNT)/composite conductive agent/LiNi1/3Co1/3Mn1/3O2/Li-ion battery分类
信息技术与安全科学引用本文复制引用
高坡,张彦林,颜健..石墨烯/碳纳米管复合导电剂对LiNi1/3Co1/3Mn1/3O2的影响[J].电池,2017,47(6):339-342,4.
