LiFePO4 composites decorated with nitrogen-doped carbon as superior cathode materials for lithium-ion batteries
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Abstract
The development of methods to synthesize electrode materials can improve the performance of lithium ion storage. In this study, a facile and low-cost approach is employed to synthesize LiFePO4 (LFP/NC) hybrid materials decorated with nitrogen-doped carbon nanomaterials (NC). Melamine was used as nitrogen and carbon source with an NC to LFP ratio of 3.19%. As electrode materials for lithium ion batteries (LIBs), the LFP/NC composites exhibit an optimum performance with a high rate capacity of 144.6 mAh·g−1 at 1 C after 500 cycles without apparent loss. The outstanding cycling stability may be attributed to the synergetic effects of well-crystallized particles and NC layers.
Keywords
LiFePO4 Nitrogen-doped carbon Melamine Cathode material Lithium-ion batteriesNotes
Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (No. 21301054 and 51402096) and the Program for Scientific and Technological Innovation Team of Hubei Province (T201517).
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