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3D nitrogen-doped graphene foam with encapsulated germanium/nitrogen-doped graphene yolk-shell nanoarchitecture for high-performance flexible Li-ion battery

Author

Listed:
  • Runwei Mo

    (Pillar of Engineering Product Development, Singapore University of Technology and Design
    Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology)

  • David Rooney

    (School of Chemistry and Chemical Engineering, Queen's University Belfast)

  • Kening Sun

    (Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology)

  • Hui Ying Yang

    (Pillar of Engineering Product Development, Singapore University of Technology and Design)

Abstract

Flexible electrochemical energy storage devices have attracted extensive attention as promising power sources for the ever-growing field of flexible and wearable electronic products. However, the rational design of a novel electrode structure with a good flexibility, high capacity, fast charge–discharge rate and long cycling lifetimes remains a long-standing challenge for developing next-generation flexible energy-storage materials. Herein, we develop a facile and general approach to three-dimensional (3D) interconnected porous nitrogen-doped graphene foam with encapsulated Ge quantum dot/nitrogen-doped graphene yolk-shell nano architecture for high specific reversible capacity (1,220 mAh g−1), long cycling capability (over 96% reversible capacity retention from the second to 1,000 cycles) and ultra-high rate performance (over 800 mAh g−1 at 40 C). This work paves a way to develop the 3D interconnected graphene-based high-capacity electrode material systems, particularly those that suffer from huge volume expansion, for the future development of high-performance flexible energy storage systems.

Suggested Citation

  • Runwei Mo & David Rooney & Kening Sun & Hui Ying Yang, 2017. "3D nitrogen-doped graphene foam with encapsulated germanium/nitrogen-doped graphene yolk-shell nanoarchitecture for high-performance flexible Li-ion battery," Nature Communications, Nature, vol. 8(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms13949
    DOI: 10.1038/ncomms13949
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    Cited by:

    1. Yuan, Zhenluo & Zhang, Dafeng & Fan, Guangxin & Chen, Yumei & Fan, Yanping & Liu, Baozhong, 2022. "N-doped carbon coated Ti3C2 MXene as a high-efficiency catalyst for improving hydrogen storage kinetics and stability of NaAlH4," Renewable Energy, Elsevier, vol. 188(C), pages 778-787.

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