| Optimization of LiFePO4 cathode material based on phosphorus doped graphite network structure for lithium ion batteries | |
Li, Chunlei; Xie, Yingchun; Zhang, Ningshuang; Ai, Ling; Liang, Youwei; Tuo, Kuanyou; Ye, Xiushen ; Jia, Guofeng; Li, Shiyou
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| 2019-03 | |
| 发表期刊 | IONICS
 |
| ISSN | 0947-7047 |
| 卷号 | 25期号:3页码:927-937 |
| 摘要 | Lithium iron phosphate (LiFePO4) has been recommended as a hopeful cathode material for lithium ion batteries (LIBs) in the future due to its lots of advantages, such as stable operating voltage, excellent cycle performance, controllable cost, and environmental protection. However, pure LiFePO4 (LFP) shows bad reversible capacity and charge/discharge performance at high rate. Many methods including decrease of particle size, optimization of coating carbon, introduction of conductive polymer, and doping of metal or non-metallic element have been developed to improve the electrochemical performance of LFP cathode material. In this study, LFP/C-P composite cathodes were prepared successfully by a facile sol-gel approach that graphite was used to generate a carbon network structure and triphenylphosphine was used to greatly facilitate generation of a network connecting passage. Electrochemical test results show that LFP/C-P composite cathode has achieved a remarkable improvement in capacity and apparent ascension in rate performance. Compared with LFP, LFP/C, and LFP-P cathode, LFP/C-P composite material shows the best electrochemical performance with a discharge capacity of 168.8mAhg(-1) and a remarkable retention rate of 98.8% over 100cycles at 0.1C. |
| DOI | 10.1007/s11581-018-2744-7 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34091 |
| 专题 | 盐湖资源与化学实验室 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Li, Chunlei,Xie, Yingchun,Zhang, Ningshuang,et al. Optimization of LiFePO4 cathode material based on phosphorus doped graphite network structure for lithium ion batteries[J]. IONICS,2019,25(3):927-937. |
| APA | Li, Chunlei.,Xie, Yingchun.,Zhang, Ningshuang.,Ai, Ling.,Liang, Youwei.,...&Li, Shiyou.(2019).Optimization of LiFePO4 cathode material based on phosphorus doped graphite network structure for lithium ion batteries.IONICS,25(3),927-937. |
| MLA | Li, Chunlei,et al."Optimization of LiFePO4 cathode material based on phosphorus doped graphite network structure for lithium ion batteries".IONICS 25.3(2019):927-937. |
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| Optimization of LiFe（8400KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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