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

    2 Citations (Scopus)

    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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