| Performance of electrolyte with dimethyl methyl phosphonate as flame-retardant additive |
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| 作者姓名： | 周代营 刘建生 李伟善 谭春林 许梦清 赵灵智 |
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| 作者单位： | [1]Department of Chemistry, South China Normal University, Guangzhou 510006, China [2]College of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China [3]Guangzhou Tinci High New Material Technology Trade Co. Ltd., Guangzhou 510600, China |
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| 基金项目： | Projects（2006AI0704003; 2006Z3-D2031） supported by the Key Project of Guangdong Province and Guangzhou City, China |
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| 摘 要： | To improve the safety of lithium-ion batteries, dimethyl additive in a LiPF6 electrolyte solution. The flammability and thermal methyl phosphonate（DMMP） was used as a flame-retardant stability of DMMP-containing electrolyte was investigated by means of burning test and accelerating rate calorimeter. It was found that the flammability and self-heat rate of the electrolyte can be reduced by the addition of DMMP. On the other hand, the electrochemical performances of graphite/LiCoO2 cells become slightly worse after using DMMP additive in the electrolyte. This alleviated trade-off between electrolyte flammability, thermal stability, and cell performance provides a possibility to formulate a nonflammable electrolyte containing DMMP and improve the electrolyte thermal stability with a minimal sacrifice in performance.
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| 关 键 词： | 锂离子电池 二甲基甲基膦酸盐 电解 性能 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Performance of electrolyte with dimethyl methyl phosphonate as flame-retardant additive |
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| ZHU Dai-ying, LIU Jian-sheng, LI Wei-shan, TAN Chun-lin, XU Meng-qing, ZHAO Ling-zhi.Performance of electrolyte with dimethyl methyl phosphonate as flame-retardant additive[J].Transactions of Nonferrous Metals Society of China,2007,17(A02):923-927. |
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| Authors: | ZHU Dai-ying LIU Jian-sheng LI Wei-shan TAN Chun-lin XU Meng-qing ZHAO Ling-zhi |
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| Affiliation: | ZH0U Dai-ying, LIU Jian-sheng, LI Wei-shan, TAN Chun-lin, XU Meng-qing, ZHAO Ling-zhi |
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