Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 1, Pages 731-736Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am405238a
Keywords
hierarchical nanostructures; direct growth; ZnCo2O4; lithium-ion battery
Funding
- Ministry of Education
- National Natural Science Foundation of China [61376073, 11274365, 21373081]
- Hunan Provincial Natural Science Foundation of China [11JJ7004]
- China Scholarship Council (CSC)
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Hierarchical nanostructures that can be directly grown on a conducting substrate are a new trend in the design of active materials for high-performance lithium-ion batteries (LIBs). This article reports our design and fabrication of a 3D hierarchical ZnCo2O4 nanostructure (3D-ZCO-NS) directly grown on Ni foams. The goose-feather-like ZnCo2O4 bundled into a loose array structure with a large electrolyte contact area and good electrical and mechanical connection to the current collector. Electrochemical measurements confirmed the good performance of the electrode for reversible Li+ storage (specific capacity of 932 mAh g(-1) in the 50th cycle at 1 A g(-1)) relative to a pasted electrode of 3D-ZCO-NSs (599 mAh g(-1) in the 50th cycle at 0.1 A g(-1)).
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