An Advanced Selenium-Carbon Cathode for Rechargeable Lithium-Selenium Batteries

被引：433
作者：
Yang, Chun-Peng
Xin, Sen
Yin, Ya-Xia
Ye, Huan
Zhang, Juan
Guo, Yu-Guo [1 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing 100190, Peoples R China
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 32期
基金：
中国国家自然科学基金;
关键词：
carbon; cathode materials; lithium; mesoporous materials; selenium; NANOSTRUCTURED MATERIALS; SULFUR BATTERIES; LONG-LIFE; ELECTROLYTE; PERFORMANCE; COMPOSITES;
D O I：
10.1002/anie.201303147
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Selenium has been confined in the form of cyclic Se8 molecules within ordered mesoporous carbon for use as a cathode material in Li-Se batteries. An ex situ study of the Se cathode reveals conversion from cyclic Se8 molecules into chain-like Sen molecules upon cycling. This effectively eliminates the shuttle effect of Se, resulting in superior electrochemical performance in terms of volumetric capacity density and cycling stability. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：8363 / 8367
页数：5
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