Effect of nitrogen-containing polymer wrapped around carbon nanotubes for Li–O2 battery cathode

Tsuyohiko Fujigaya, Ryota Kanamori, Shinsuke Hirata, Junichi Morita, Masamichi Matsumoto, Masato Eguchi, Il Chan Jang, Tatsumi Ishihara, Naotoshi Nakashima

Research output: Contribution to journalArticlepeer-review

Abstract

In the development of lithium (Li)–oxygen (O2) rechargeable batteries, the improvement of the rechargeability is one of the key issues to be solved. Herein, a novel strategy to solve this issue is explored using polymer-wrapped single-walled carbon nanotubes (SWCNTs) as the cathode material. Poly[2,2’-(2,6-pyridine)-5,5’-bibenzimidazole] (PyPBI), employed as the wrapping polymer of the SWCNTs, served to coordinate Li ions and to facilitate a favorable deposition of the discharge products on the SWCNTs during the discharge reaction at the cell cathode. As a result, the rechargeability of the cell (SWCNT/PyPBI-cell) was improved compared to the cell having nonwrapped SWCNTs as the cathode (SWCNT-cell).

Original languageEnglish
Pages (from-to)921-927
Number of pages7
JournalPolymer Journal
Volume51
Issue number9
DOIs
Publication statusPublished - Sep 1 2019

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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