Journal
RSC ADVANCES
Volume 10, Issue 54, Pages 32609-32615Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra05203e
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Funding
- high-tech research and development project fund of Wuhan Science and Technology Bureau [2017010201010107]
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ZnCo(2)O(4)has become one of the most widely used anode materials due to its good specific capacity, cost-efficiency, high thermal stability and environmental benignity. However, its poor conductivity and cycle stability have limited its practical application in lithium-ion batteries. To overcome these issues, we constructed a 3D nanoflower composite material (ZnCo2O4@C3N4-B) by combining ZnCo(2)O(4)as a framework and B-doped g-C3N4(g-C3N4-B) as a new carbon source materialviaa simple hydrothermal method. ZnCo2O4@C3N4-B exhibited exceptional specific capacitance of 919.76 mA h g(-1)after 500 cycles at 0.2 A g(-1)and a long-term capacity retention of 97.8% after 1000 cycles at 2 A g(-1). The high reversible capacity, long cycling life and good rate performance could be attributed to the 3D interconnected architecture and doping of g-C3N4-B. This work provides a simple and general strategy to design high-performance anode materials for lithium-ion batteries to meet the needs of practical applications.
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