An Advanced Selenium–Carbon Cathode for Rechargeable Lithium–Selenium Batteries1. Issue 32 (26th June 2013)

• Record Type: Journal Article
• Authors: Yang, Chun‐Peng; Xin, Sen; Yin, Ya‐Xia; Ye, Huan; Zhang, Juan; Guo, Yu‐Guo
• Is Part Of: Angewandte Chemie international edition. Volume 52:Issue 32(2013)
• Page Start: 8363
• Page End: 8367
• Publication Date: 2013-06-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201303147
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Selenium has been confined</bold> 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 Se_{<italic>n</italic>} 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.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg36jxck70" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>