期刊
CHEMPLUSCHEM
卷 83, 期 10, 页码 929-933出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201800102
关键词
hierarchical materials; lithium-ion batteries; nanomaterials; NiCoO2
资金
- National Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities [51773165]
- Young Talent Support Plan of Xi'an Jiaotong University
This study reports the synthesis of hierarchical NiCoO2 nanosheets growing on hollow carbon spheres (denoted as NiCoO2 NSs@HCS) via a facile and low-cost process. When evaluated as anode materials for lithium-ion batteries, the as-prepared NiCoO2 NSs@HCS exhibits high specific capacity, enhanced cycling stability, and good rate capability. A high discharge capacity of 631.7 mA h g(-1) is delivered even after 200 cycles at a current density of 400 mA g(-1), corresponding to approximately 92 % of the second reversible discharge capacity. The hierarchical and hollow structure of NiCoO2 NSs@HCS plays a role in its excellent performance.
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