| Pure LiFePO4 with high energy density prepared by water quenching treatment |
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| 作者姓名： | Xu Guang Gao Guo Rong Hu Zhong Dong Peng Ke Du Xin Rong Deng |
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| 作者单位： | Xu Guang Gao~* Guo Rong Hu Zhong Dong Peng，Ke Du Xin Rong Deng School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China |
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| 基金项目： | 国家自然科学基金;中南大学校科研和教改项目 |
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| 摘 要： | A compound"vacuum firing and water quenching"technique was presented in the synthesis of LiFePO_4 cathode powder.The sample was prepared by heating the pre-decomposed precursor mixtures sealed in vacuum quartz-tube,followed by water quenching at the sintering temperature.The results indicate that using the"fast quenching"treatment can succeed in controlling overgrowth of the grain size of final product and improving its utilization ratio of active material.The sample synthesized by this technique has the high reversible discharge specific capacity and good cyclic electrochemical performance.
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| 关 键 词： | 锂电池 阴极材料 淬火 LiFePO4 |
| 收稿时间： | 21 May 2007 |
| 修稿时间： | 2007-05-21 |
Pure LiFePO4 with high energy density prepared by water quenching treatment |
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| Xu Guang Gao Guo Rong Hu Zhong Dong Peng Ke Du Xin Rong Deng.Pure LiFePO4 with high energy density prepared by water quenching treatment[J].Chinese Chemical Letters,2007,18(10):1256-1260. |
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| Authors: | Xu Guang Gao Guo Rong Hu Zhong Dong Peng Ke Du Xin Rong Deng |
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| Institution: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | A compound"vacuum firing and water quenching"technique was presented in the synthesis of LiFePO_4 cathode powder.The sample was prepared by heating the pre-decomposed precursor mixtures sealed in vacuum quartz-tube,followed by water quenching at the sintering temperature.The results indicate that using the"fast quenching"treatment can succeed in controlling overgrowth of the grain size of final product and improving its utilization ratio of active material.The sample synthesized by this technique has the high reversible discharge specific capacity and good cyclic electrochemical performance. |
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| Keywords: | Li-ion battery Cathode material LiFePO4 Water quenching |
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