Metal oxide‐based nanomaterials are widely studied because of their high‐energy densities as anode materials in lithium‐ion batteries. However, the fast capacity degradation resulting from the large volume expansion upon lithiation hinders their...
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https://www.riss.kr/link?id=O120352657
Guoyin Zhu ; Lei Wang ; Huinan Lin ; Liaobo Ma ; Peiyang Zhao ; Yi Hu ; Tao Chen ; Renpeng Chen ; Yanrong Wang ; Zuoxiu Tie ; Jie Liu ; Zhong Jin
2018년
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1616-301X
1616-3028
SCOPUS;SCIE
학술저널
n/a-n/a [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Metal oxide‐based nanomaterials are widely studied because of their high‐energy densities as anode materials in lithium‐ion batteries. However, the fast capacity degradation resulting from the large volume expansion upon lithiation hinders their...
Metal oxide‐based nanomaterials are widely studied because of their high‐energy densities as anode materials in lithium‐ion batteries. However, the fast capacity degradation resulting from the large volume expansion upon lithiation hinders their practical application. In this work, the preparation of walnut‐like multicore–shell MnO encapsulated nitrogen‐rich carbon nanocapsules (MnO@NC) is reported via a facile and eco‐friendly process for long‐cycling Li‐ion batteries. In this hybrid structure, MnO nanoparticles are uniformly dispersed inside carbon nanoshells, which can simultaneously act as a conductive framework and also a protective buffer layer to restrain the volume variation. The MnO@NC nanocapsules show remarkable electrochemical performances for lithium‐ion batteries, exhibiting high reversible capability (762 mAh g−1 at 100 mA g−1) and stable cycling life (624 mAh g−1 after 1000 cycles at 1000 mA g−1). In addition, the soft‐packed full batteries based on MnO@NC nanocapsules anodes and commercial LiFePO4 cathodes present good flexibility and cycling stability.
Walnut‐like multicore–shell MnO nanoparticle encapsulated nitrogen‐rich carbon nanocapsules (MnO@NC) as high‐performance anode material for lithium‐ion batteries are prepared. The MnO@NC nanocapsules exhibit highly reversible capacity and long‐term cyclability. Furthermore, a soft‐packed full battery based on MnO@NC nanocapsules anode and commercial LiFePO4 cathode present good flexibility and cycling performance, even under continuous bending (folding) and unbending operations.