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材料研究学报  2009, Vol. 23 Issue (1): 22-26    
  研究论文 本期目录 | 过刊浏览 |
磷酸亚铁锂核壳结构材料的制备和电化学性能
刘树和; 闻雷; 白朔; 李峰; 王作明
中国科学院金属研究所沈阳材料科学国家(联合)实验室~~沈阳~110016
Synthesis and electrochemical property of LiFePO4 with core-shell structures
LIU Shuhe;  WEN Lei ; BAI Suo; LI Feng;  WANG Zuoming
Shenyang National Laboratory for Materials Science; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110016
引用本文:

刘树和 闻雷 白朔 李峰 王作明. 磷酸亚铁锂核壳结构材料的制备和电化学性能[J]. 材料研究学报, 2009, 23(1): 22-26.
, , , . Synthesis and electrochemical property of LiFePO4 with core-shell structures[J]. Chin J Mater Res, 2009, 23(1): 22-26.

全文: PDF(655 KB)  
摘要: 

制备热解炭/磷酸亚铁锂和纳米炭纤维/磷酸亚铁锂核壳结构材料, 研究了电化学性能. 结果表明, 热解炭和纳米炭纤维包覆层能有效地降低磷酸亚铁锂材料的电阻率, 大大提高材料的充放电容量和循环稳定性. 与热解炭相比, 纳米炭纤维具有一维结构和优异的力学性能, 更适于作为磷酸亚铁锂电极材料的高效导电剂.

关键词 无机非金属材料磷酸亚铁锂流化床电化学性能    
Abstract

Two types of core-shell structured cathode materials-pyrolytic carbon(PyC)/LiFePO4 and carbon nanofiber(CNF)/LiFePO4 were synthesized by fluidized bed chemical vapor deposition method and their electrochemical properties were explored. The PyC or CNF coating can effectively reduce the resistivity of LiFePO4, and greatly improved its charge-discharge capacity and cyclability. Compared with PyC, the one dimensional structure and excellent mechanical performance of CNF make it more suitable as the conductive additive of LiFePO4.

Key wordsinorganic non-metallic materials    LiFePO$_{4}$    fluidized-bed    electrochemical property
收稿日期: 2008-03-05     
ZTFLH: 

TB321

 

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