| Synthesis of sub-micrometer lithium iron phosphate particles for lithium ion battery by using supercritical hydrothermal method简 |
| |
| 引用本文： | 张艳洁,杨艳芳,王学勇,李帅三.Synthesis of sub-micrometer lithium iron phosphate particles for lithium ion battery by using supercritical hydrothermal method简[J].中国化学工程学报,2014,22(2):234-237. |
| |
| 作者姓名： | 张艳洁 杨艳芳 王学勇 李帅三 |
| |
| 作者单位： | 1.Mudanjiang Medical University, Mudanjiang 157011, China;2.The 209th Hospital of People's Liberation Army, Mudanjiang 157011, China |
| |
| 摘 要： | A supercritical hydrothermal method was employed to prepare sub-micrometer LiFePO4 particles with high purity and crystallinity. The structure and morphology of LiFePO4 particles were characterized by X-ray diffraction and scanning electron microscope. The electrochemical tests were carried out to determine the reversible capacity, rate and cycling performance of the LiFePO4 particles as cathode material for lithium ion battery. Experimental results show that solvent and calcining time have significant effects on purity, size and morphology of LiFePO4 particles. Mixed solvent contained deionized water and ethanol is conducive to synthesize smaller and more uniform particles. The size of LiFePO4 particles as-prepared is about 100-300 nm. The specific discharge capacities of the LiFePO4 particles are 151.3 and 128.0 mA. h. g-1 after first cycle at the rates of 0.1 and 1.0 C, respectively. It retains 95.0% of the initial capacity after 100 cycles at 1.0 C.
|
| 关 键 词： | LiFePO4 supercritical hydrothermal synthesis lithium iron |
| 收稿时间： | 2012-08-22 |
Synthesis of Sub-micrometer Lithium Iron Phosphate Particles for Lithium Ion Battery by Using Supercritical Hydrothermal Method |
| |
| ZHANG Yanjie,YANG Yanfang,WANG Xueyong and LI Shuaisan.Synthesis of Sub-micrometer Lithium Iron Phosphate Particles for Lithium Ion Battery by Using Supercritical Hydrothermal Method[J].Chinese Journal of Chemical Engineering,2014,22(2):234-237. |
| |
| Authors: | ZHANG Yanjie YANG Yanfang WANG Xueyong and LI Shuaisan |
| |
| Affiliation: | 1.Mudanjiang Medical University, Mudanjiang 157011, China;2.The 209th Hospital of People's Liberation Army, Mudanjiang 157011, China |
| |
| Abstract: | A supercritical hydrothermal method was employed to prepare sub-micrometer LiFePO4 particles with high purity and crystallinity. The structure and morphology of LiFePO4 particles were characterized by X-ray diffraction and scanning electron microscope. The electrochemical tests were carried out to determine the reversible capacity, rate and cycling performance of the LiFePO4 particles as cathode material for lithium ion battery. Experimental results show that solvent and calcining time have significant effects on purity, size and morphology of LiFePO4 particles. Mixed solvent contained deionized water and ethanol is conducive to synthesize smaller and more uniform particles. The size of LiFePO4 particles as-prepared is about 100-300 nm. The specific discharge capacities of the LiFePO4 particles are 151.3 and 128.0 mA·h·g-1 after first cycle at the rates of 0.1 and 1.0 C, respectively. It retains 95.0% of the initial capacity after 100 cycles at 1.0 C. |
| |
| Keywords: | LiFePO4 supercritical hydrothermal synthesis lithium iron |
| 本文献已被 CNKI 维普 ScienceDirect 等数据库收录！ |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
