Graphene@Nanoporous Nickel Cathode for Li−O2 Batteries

Xianwei Guo, Jiuhui Han, Pan Liu, Yoshikazu Ito, Akihiko Hirata, Mingwei Chen

研究成果: Article査読

8 被引用数 (Scopus)

抄録

Li−O2 batteries are a promising electrochemical energy-storage system with a sufficient energy density for all electric vehicles, with a one-charge driving distance comparable to conventional petrol cars. However, the practical implementations of Li−O2 batteries face many scientific and technological challenges. Among these is the development of high-performance cathode materials that can provide high capacity, low charge/discharge overpotentials and stable cycling stability. Here, we report a nanoporous Ni cathode covered by N-doped graphene and self-grown catalyst for rechargeable Li−O2 batteries. The novel hybrid cathode shows relatively low charge/discharge overpotentials, high volumetric capacity and long cycling lifetime, which may pave a new way for practical implementation of economic nanoporous metals as binder-free cathodes for high-performance Li−O2 batteries.

本文言語English
ページ(範囲)176-181
ページ数6
ジャーナルChemNanoMat
2
3
DOI
出版ステータスPublished - 2016 3

ASJC Scopus subject areas

  • 生体材料
  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 材料化学

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