期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 30, 页码 15661-15667出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta04146e
关键词
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资金
- Thousand Young Talents Program of the Chinese Central Government [0220002102003]
- National Natural Science Foundation of China (NSFC) [21373280, 21403019]
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Fundamental Research Funds for the Central Universities [0301005202017]
- Hundred Talents Program at Chongqing University [0903005203205]
Novel monodisperse LiFePO4 cages with an octahedral micro/nano-hierarchical structure have been synthesized for the first time through a simple and controllable solvothermal approach followed by high-temperature calcination. Structural characterization is carried out using X-ray diffraction, scanning electron microscopy, Brunauer-Emmett-Teller surface area measurements, Raman spectroscopy and X-ray energy dispersive spectroscopy. As detected, our unique octahedral micro/nano-LiFePO4 cages possess numerous outstanding properties, such as single-crystalline, hierarchical structure and large specific surface areas, which significantly lead to high rate capability, excellent cycling stability and superior tap density. This special micro/nano-hierarchical structure can be extended to other lithium metal oxide composites, which would promote the development of lithium-ion batteries.
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