期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 19, 期 20, 页码 13341-13347出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cp00049a
关键词
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资金
- National Key Research and Development Program of China [2016YFA0202603]
- National Basic Research Program of China [2013CB934103]
- National Natural Science Foundation of China [51521001, 21673171, 51502226]
- National Natural Science Fund for Distinguished Young Scholars [51425204]
- Fundamental Research Funds for the Central Universities [WUT: 2016-JL-004, 2016III001, 2016III002]
- China Scholarship Council [201606955096]
Interconnected LiCuVO4 networks were synthesized through a facile surfactant-assisted approach. Detailed investigations on the lithium storage mechanism manifest that metallic Cu nanoparticles are generated in situ during the first discharge process and remain mostly intact in the following cycles, thereby enhancing conductivity of the electrode. The interconnected networks with submicron sized primary particles endow the LiCuVO4 with a large amount of active sites and thus high capacitive charge storage. Benefiting from a peculiar structure, the resultant interconnected LiCuVO4 networks deliver extraordinary rate performance (216 mA h g(-1) up to 10 A g(-1)) and ultralong cycling stability (similar to 85% capacity retention after 5000 cycles at 5 A g(-1)). The exceptional rate performance and cycling stability show that the interconnected LiCuVO4 networks possess great potential for lithium-ion batteries.
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