Impact of mechanical bending on the electrochemical performance of bendable lithium batteries with paper-like free-standing V 2O 5-polypyrrole cathodes

Lukman Noerochim*, Jia Zhao Wang, David Wexler, Md Mokhlesur Rahman, Jun Chen, Hua Kun Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Highly flexible, paper-like, free-standing V 2O 5 and V 2O 5-polypyrrole (PPy) films were prepared via the vacuum filtration method. The films are soft, lightweight, and mechanically robust. The electrochemical performance of the free-standing pure V 2O 5 electrode was improved by incorporating conducting polypyrrole. A bendable cell with a novel design was fabricated, consisting of a free-standing V 2O 5-PPy cathode film, gel electrolyte, and a lithium foil anode. The cell was tested under repeated bending conditions for several cycles. The results show that the battery performance of the repeatedly bent cell was similar to that of the conventional cell.

Original languageEnglish
Pages (from-to)11159-11165
Number of pages7
JournalJournal of Materials Chemistry
Volume22
Issue number22
DOIs
Publication statusPublished - 14 Jun 2012

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