Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 13, Pages 10786-10795Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b17597
Keywords
lithium-ion batteries; three-dimensional configuration; core-shell architectures; LiAlO2; templates; LiMnPO4
Funding
- National Natural Science Foundation of China [51374056, 51404055, 51571054, 51674068]
- Natural Science Foundation of Hebei Province [E2014501143]
- Science and Technology Research Project of Higher Education of Hebei Province [QN2017103]
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In the efforts toward the rapidly increasing demands for high-power application, cathode materials with three-dimensional (3D) architectures have been proposed. Here, we report the construction of the 3D LiAlO2-LiMnPO4/C cathode materials for lithium-ion batteries in an innovation way. The as-prepared 3D active materials LiMnPO4/C and the honeycomb-like Li-ion conductor LiAlO2 framework are used as working electrode directly without additional usage of polymeric binder. The electrochemical performance has been improved significantly due to the special designed core-shell architectures of LiMnPO4/C@LiAlO2. The 3D binder-free electrode exhibits high rate capability as well as superior cycling stability with a capability of similar to 105 mAh g(-1) and 98.4% capacity retention after 100 cycles at a high discharge rate of 10 C. Such synthesis method adopted in our work can be further extended to other promising candidates and would also inspire new avenues of development of 3D materials for lithium-ion batteries.
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