期刊
CHEMPLUSCHEM
卷 80, 期 12, 页码 1725-1731出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201500322
关键词
batteries; electrochemistry; lithium; nanostructures; mesoporous materials
资金
- Foundation of National Key Basic Research and Development Program [2010CB631001]
- National Nature Science Foundation [51401083, 51371089]
- Program for Changjiang Scholars and Innovative Research Team in University
Ultrathin mesoporous NiCo2O4 nanosheets were directly grown on Ni foams to form an efficient and reversible anode for lithium-ion half-cell batteries. Nanosheets with wrinkles, which were monolayers of 10 nm NiCo2O4 nanoparticles, were interconnected to build up a honeycomb-like architecture that offered a large electrolyte contact area and good structural integrity. The firm attachment of the sheets on the foam endows the anode with good electrical conductivity and excellent mechanical stability. Electrochemical measurements confirm that the electrode has a better performance at reversible Li+ storage (specific capacity of 1170.1 mAhg(-1) in the 50th cycle at 0.2 C) than the pasted electrode made of NiCo2O4 nanosheets powder.
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