电池2013,Vol.43Issue(3):151-154,4.
硫含量和集流体类型对锂硫电池性能的影响
Effect of sulfur content and type of collector on performance of Li/S battery
摘要
Abstract
High sulfur content(> 60%)S/KS6 composite for lithium-sulfur(Li/S) battery was synthesized by heat treatment with high electric conduction KS6 graphite as carrier of element sulfur.The effects of sulfur electrode using plane current collector,threedimension current collector on cycle performance of battery were compared.The composite was analyzed by XRD,cyclic voltammetry,electrochemical impedance spectroscopy and galvanostatic charge-discharge tests.Li/S battery using S/KS6 composite with sulfur-carbon mass ratio of 2:1 and three-dimension current collector had higher capacity and better cycle stability,when charged-dis-charged in 1.5 ~2.5 V with 0.05 C,its discharge capacity in the 30th cycle was 83.6% of the initial cycle.关键词
单质硫/石墨KS6/集流体/锂硫电池/循环稳定性Key words
element sulfur/ KS6 graphite/ current collector/ lithium-sulfur(Li/S)battery/ cycle stability分类
信息技术与安全科学引用本文复制引用
王雪丽,魏俊华,王庆杰,林甘红..硫含量和集流体类型对锂硫电池性能的影响[J].电池,2013,43(3):151-154,4.