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| 用不同碳源对LiFePO_4的碳包覆改性 | |
| 引用本文： | 曹小卫,张俊喜,颜立成,宋启云,李雪.用不同碳源对LiFePO_4的碳包覆改性[J].材料研究学报,2009,23(4). |
| 作者姓名： | 曹小卫 张俊喜 颜立成 宋启云 李雪 |
| 作者单位： | 1. 上海电力学院电化学研究室,上海高校电力腐蚀控制与应用电化学重点实验室,上海,200090;上海大学环境与化学工程学院,上海,200072 2. 上海电力学院电化学研究室,上海高校电力腐蚀控制与应用电化学重点实验室,上海,200090 3. 杭州师范大学教务处,杭州,310036 |
| 基金项目： | 教育部科技研究重点项目 205055;中国航天科工集团支撑技术基金DL01-2004;上海市重点学科建设基金P1304和上海市科委研发基地专项基金06DZ22010资助项目 |
| 摘 要： | 采用共沉淀方法结合原位碳包覆合成了LiFePO4/C复合正极材料.对碳化过程和包覆LiFePO4进行了研究.结果表明:在不同碳源的热解过程中,由于分子量和结构的不同,分解温度和碳化产物的结构也不相同;不同碳源的碳包覆对LiFePO4的晶体结构有一定的影响,而且由于碳包覆层结构的差异所包覆改性的LiFeO4表现出不同的电化学性能.文中还讨论了不同碳源对碳包覆后LiFePO4/C的电化学性能的影响. |
| 关 键 词： | 无机非金属材料 磷酸铁锂 共沉淀 原位碳包覆 碳化 |
On the modification of the carbon-coated LiFePO_4 materials by different carbon sources |
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| CAO Xiaowei,ZHANG Junxi,YAN Licheng,SONG Qiyun,LI Xue.On the modification of the carbon-coated LiFePO_4 materials by different carbon sources[J].Chinese Journal of Materials Research,2009,23(4). | |
| Authors: | CAO Xiaowei ZHANG Junxi YAN Licheng SONG Qiyun LI Xue |
| Affiliation: | CAO Xiaowei~(1,2) ZHANG Junxi~(1**) YAN Licheng~3 SONG Qiyun~1 LI Xue~(1,2) 1.Electrochemical Research Croup,Shanghai University of Electric Power,Key laboratory of Shanghai Colleges , Universities for Electric Power Corrosion Control , Applied Electrochemistry Shanghai 200090 2.School of Environmental , Chemical Engineering,Shanghai University,Shanghai 200072 S.Hangzhou Teachers University,Hangzhou 310036 |
| Abstract: | This study was concerning the carbonation and modification of carbon coating method of LiFePO_4.The structure and the electrochemical performance were characterized by TG-DTA,XRD,TEM and electrochemical performance testing.The results showed that different molecular weights and structures of the carbon sources resulted in different decomposition temperatures and structures of carbonized products,and the electrochemical performance of the LiFePO_4/C composite materials was effected by different carbon source... |
| Keywords: | inorganic non-metallic materials lithium iron phosphate co-precipitation method carbon-coating in suit carbonation |
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