LiFePO4 composites decorated with nitrogen-doped carbon as superior cathode materials for lithium-ion batteries

被引：8
|
作者：
Ding, Yu [1 ,2 ]
Pan, Pei [1 ,3 ]
Chen, Lihui [1 ]
Fu, Zhengbing [1 ]
Du, Jun [1 ]
Guo, Liangui [1 ]
Wang, Feng [1 ,2 ]
机构：
[1] Hubei Engn Univ, Coll Chem & Mat Sci, Xiaogan 432000, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China
[3] Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Hubei, Peoples R China
来源：
IONICS | 2017年 / 23卷 / 12期
基金：
中国国家自然科学基金;
关键词：
LiFePO4; Nitrogen-doped carbon; Melamine; Cathode material; Lithium-ion batteries; CHARGE-TRANSFER KINETICS; NANO-SIZED LIFEPO4/C; ELECTROCHEMICAL PERFORMANCE; COATED LIFEPO4; NATURAL GRAPHITE; RATE CAPABILITY; ANODE MATERIALS; INTERCALATION; NANOPARTICLES; MICROSPHERES;
D O I：
10.1007/s11581-017-2137-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 center dot 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.
引用
收藏
页码：3295 / 3302
页数：8
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