| 钾盐添加剂改善天然石墨负极的嵌脱锂性质 |
| |
| 引用本文： | 郑洪河,王显军,李苞,常照荣.钾盐添加剂改善天然石墨负极的嵌脱锂性质[J].无机材料学报,2006,21(5):1109-1113. |
| |
| 作者姓名： | 郑洪河 王显军 李苞 常照荣 |
| |
| 作者单位： | 1. 河南师范大学化学与环境科学学院, 新乡 453007; 2．河南教育学院物理系, 郑州 450014 |
| |
| 基金项目： | 河南省杰出青年科学基金 |
| |
| 摘 要： | 于1mol/L LiClO4/EC+DEC电解液中添加不同的钾盐可以显著降低天然石墨电极首次循环过程中的不可逆容量损失, 提高电极的可逆容量和倍率充放电性能. 交流阻抗和电极表面固体电解质相界面(SEI)膜组分的FTIR分析表明, 添加一定量的钾盐可以降低SEI膜的锂盐含量, 有助于形成Li+迁移性良好的SEI膜.
|
| 关 键 词： | 锂离子蓄电池 天然石墨 电解液 添加剂 |
| 文章编号： | 1000-324X（2006）05-1109-05 |
| 收稿时间： | 09 29 2005 12:00AM |
| 修稿时间： | 2005-09-292006-01-18 |
Potassium Salts as Electrolyte Additives for Enhancing Electrochemical Performances of Natural Graphite Anodes |
| |
| ZHENG Hong-He,WANG Xian-Jun,LI Bao,CHANG Zhao-Rong.Potassium Salts as Electrolyte Additives for Enhancing Electrochemical Performances of Natural Graphite Anodes[J].Journal of Inorganic Materials,2006,21(5):1109-1113. |
| |
| Authors: | ZHENG Hong-He WANG Xian-Jun LI Bao CHANG Zhao-Rong |
| |
| Affiliation: | 1. College of Chemistry & Environmental Sciences, Henan Normal University, Xinxiang 453007, China; 2. Department of Physics, Henan Institute of Education, Zhengzhou 450014, China |
| |
| Abstract: | Addition of different potassium salts into 1mol/L LiClO4/EC+DEC electrolyte can reduce the initial irreversible capacity loss at the first cycle and improve the reversible capacity and the rate capability of a natural graphite anode. Electrochemical impedance spectroscopy (EIS) and FTIR studies demonstrated the formation of a more conductive and thinner SEI layer on the graphite surface in the electrolyte containing a certain amount of potassium salt. |
| |
| Keywords: | lithium-ion battery natural graphite electrolyte additive |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
