| 磷酸亚铁锂核壳结构材料的制备和电化学性能 |
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| 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) |
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| 作者姓名： | 刘树和 闻雷 白朔 李峰 王作明 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 无机非金属材料 磷酸亚铁锂 流化床 电化学性能 |
Synthesis and electrochemical property of LiFePO_4 with core-shell structures |
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| LIU Shuhe,WEN Lei,BAI Suo,LI Feng,WANG Zuoming. Synthesis and electrochemical property of LiFePO_4 with core-shell structures[J]. Chinese Journal of Materials Research, 2009, 23(1) |
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| Authors: | LIU Shuhe WEN Lei BAI Suo LI Feng WANG Zuoming |
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| Affiliation: | Shenyang National Laboratory for Materials Science;Institute of Metal Research;Chinese Academy of Sciences;Shenyang 110016 |
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| Abstract: | Two types of core-shell structured cathode materials-pyrolytic carbon(PyC)/LiFePO_4 and carbon nanofiber(CNF)/LiFePO_4 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 LiFePO_4,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 ad... |
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| Keywords: | inorganic non-metallic materials LiFePO_4 fluidized-bed electrochemical property |
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