阴极
复合数
电解质
锂(药物)
材料科学
电化学
导电体
快离子导体
电池(电)
硫化物
化学工程
电流密度
复合材料
电极
化学
冶金
内分泌学
物理化学
功率(物理)
工程类
物理
医学
量子力学
作者
Huize Jiang,Yu Han,Hui Wang,Yan Zhu,Qingpeng Guo,Haolong Jiang,Chunman Zheng,Kai Xie
出处
期刊:Ionics
[Springer Nature]
日期:2020-05-17
卷期号:26 (9): 4257-4265
被引量:10
标识
DOI:10.1007/s11581-020-03591-9
摘要
The poor interface between the active materials, solid electrolytes, and conductive additives in composite cathode materials is the key factor restricting the performance of the all-solid-state lithium-sulfur battery. Here, the composite cathode material was prepared through the method of one-step ball milling. The sulfide electrolyte Li3PS4 (LPS) was formed on the surface of the active material Li2S while the conductive additives were incorporated, and the conductive ions and electronic network were constructed simultaneously. After adding an appropriate amount of carbon nanotubes (cnt), the composite cathode exhibited high specific capacity of 1145.2 mAh g−1 after 30 times of cycling at a current density of 0.2 mA cm−2, and the battery with ultrahigh areal Li2S loading also displays high capacity of 962.6 mA g−1. The composite cathode with high Li2S content (56.3%) was prepared, with excellent performance exhibited: the capacity is 741 mAh g−1 after 30 times of cycling at a current density of 0.2 mA cm−2.
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