High cyclic performance of V2O5@PPy composite as cathode of recharged lithium batteries

Micro–nanosized vanadium pentoxide (V 2 O 5 ) was synthesized by hydrothermal reduction of amorphous V 2 O 5 , followed by thermal treatment in air atmosphere. Pyrrole was in-situ polymerization on the surface of V 2 O 5 to obtain V 2 O 5 @PPy hybrid material.The as-synthesized V 2 O 5 with about 10...

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Bibliographic Details
Published inJournal of applied electrochemistry Vol. 42; no. 3; pp. 139 - 144
Main Authors Zhao, Hongbin, Yuan, Anbao, Liu, Bingdi, Xing, Siyi, Wu, Xiaoyan, Xu, Jiaqiang
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.03.2012
Subjects
Chemistry
Chemistry and Materials Science
Electrochemistry
Industrial Chemistry/Chemical Engineering
Original Paper
Physical Chemistry
Recharged lithium battery
Vanadium pentoxide
Cyclic performance
Polypyrrole
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Summary:Micro–nanosized vanadium pentoxide (V 2 O 5 ) was synthesized by hydrothermal reduction of amorphous V 2 O 5 , followed by thermal treatment in air atmosphere. Pyrrole was in-situ polymerization on the surface of V 2 O 5 to obtain V 2 O 5 @PPy hybrid material.The as-synthesized V 2 O 5 with about 100 nm in diameter and several hundreds nanometers in length were obtained and PPy layer with about 100 nm in thickness coated on the surface of V 2 O 5 . Electrochemical measurement showed that V 2 O 5 @PPy hybrid material had improved lithium storage ability and cycling performance compared with pure V 2 O 5 . PPy modification supplied a new route to obtain V 2 O 5 hybrid cathode with significantly improved cyclic performance and showed promising applications in recharged lithium batteries.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-012-0380-x