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An Advanced Selenium–Carbon Cathode for Rechargeable Lithium–Selenium Batteries
Author(s) -
Yang ChunPeng,
Xin Sen,
Yin YaXia,
Ye Huan,
Zhang Juan,
Guo YuGuo
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201303147
Subject(s) - cathode , lithium (medication) , selenium , carbon fibers , electrochemistry , materials science , nanotechnology , computer science , electrode , chemistry , electrical engineering , engineering , composite material , medicine , endocrinology , composite number , metallurgy
Selenium has been confined in the form of cyclic Se 8 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 Se 8 molecules into chain‐like Se n 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.