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| 碳掺杂磷酸铁锂的合成及其电化学性能 | |
| 引用本文： | 李军,黄慧民,夏信德,李大光,赖桂棠. 碳掺杂磷酸铁锂的合成及其电化学性能[J]. 湖南科技大学学报(自然科学版), 2007, 22(3): 118-120 |
| 作者姓名： | 李军 黄慧民 夏信德 李大光 赖桂棠 |
| 作者单位： | 1. 广东工业大学,轻工化工学院,广东,广州,510006;广东工业大学,机电工程学院博士后流动站,广东,广州,510006 2. 广东工业大学,轻工化工学院,广东,广州,510006 3. 广州市鹏辉电池有限公司,博士后工作站,广东,广州,511483 |
| 基金项目： | 国家自然科学基金，番禺区科技计划项目 |
| 摘 要： | 采用固相合成法制备了碳掺杂的LiFePO4复合正极材料,用XRD、SEM、激光粒度分布仪等对其进行了表征,并将其组装成实验电池利用电化学工作站及充放电测试等对样品的电化学性能进行了研究分析.结果表明,LiFePO4/C具有单一的橄榄石晶体结构,少量的碳掺杂能显著改善其电化学性能,LiFePO4/C样品的粒度较小且分布均匀,0.1 C首次放电比容量为141.8 mAh/g,循环50次后容量衰减了7.69%.图6,参8. |
| 关 键 词： | 磷酸铁锂 掺杂 电化学性能 固相法 |
| 文章编号： | 1672-9102（2007）03-0118-03 |
| 收稿时间： | 2007-01-16 |
| 修稿时间： | 2007-01-16 |
Synthesis of Carbon Doped LiFePO4 and Its Electrochemical Performance |
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| LI Jun,HUANG Hui-min,XIA Xin-de,LI Da-guang,LAI Gai-tang. Synthesis of Carbon Doped LiFePO4 and Its Electrochemical Performance[J]. Journal of Hunan University of Science & Technology(Natural Science Editon), 2007, 22(3): 118-120 | |
| Authors: | LI Jun HUANG Hui-min XIA Xin-de LI Da-guang LAI Gai-tang |
| Affiliation: | 1. Guangdong University of Technology, a. School of Chemical Engineering, b. School of electromechanical engineering, Guangzhou 510006, China; 2. Post-doctor work station, Guangzhou penghui Battery Ltd., Guangzhou 511483, China |
| Abstract: | Carbon doped LiFePO4 composite cathode materials were prepared by solid phase reaction.The samples were tested by XRD,SEM,laser particle size distributing electrochemical charge and discharge tests and A.C.impedance tests.The results showed that LiFePO4/C are simple pure olive-type.The carbon doparots can considerably improve its electrochemical performance.LiFePO4/C samples have smaller particle and even distribution.The samples have an initiate capacity of 141.8 mAh/g at 0.1C,of which decreased 7.69% after 50 cycles. |
| Keywords: | lithium iron phosphate doped electrochemical performance solid-phase reaction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |