Hierarchical LiFePO4 with a controllable growth of the (010) facet for lithium-ion batteries

Hierarchically structured LiFePO 4 was successfully synthesized by ionic liquid solvothermal method. These hierarchically structured LiFePO 4 samples were constructed from nanostructured platelets with their (010) facets mainly exposed. To the best of our knowledge, facet control of a hierarchical L...

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Bibliographic Details
Published in:Scientific reports 2013-09, Vol.3 (1), p.2788-2788, Article 2788
Main Authors: Guo, Binbin, Ruan, Hongcheng, Zheng, Cheng, Fei, Hailong, Wei, Mingdeng
Format: Article
Language:English
Subjects:
639/301/299/161
639/301/357/1018
639/638/161/891
639/925/357/341
Humanities and Social Sciences
Lithium
multidisciplinary
Platelets
Science
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Summary:Hierarchically structured LiFePO 4 was successfully synthesized by ionic liquid solvothermal method. These hierarchically structured LiFePO 4 samples were constructed from nanostructured platelets with their (010) facets mainly exposed. To the best of our knowledge, facet control of a hierarchical LiFePO 4 crystal has not been reported yet. Based on a series of experimental results, a tentative mechanism for the formation of these hierarchical structures was proposed. After these hierarchically structured LiFePO 4 samples were coated with a thin carbon layer and used as cathode materials for lithium-ion batteries, they exhibited excellent high-rate discharge capability and cycling stability. For instance, a capacity of 95% can be maintained for the LiFePO 4 sample at a rate as high as 20 C, even after 1000 cycles.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep02788