| 锂离子电池爆炸机理分析 |
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| 引用本文： | 陈玉红,唐致远,贺艳兵,刘强.锂离子电池爆炸机理分析[J].电化学,2006,12(3):266-270. |
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| 作者姓名： | 陈玉红 唐致远 贺艳兵 刘强 |
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| 作者单位： | 天津大学化工学院应用化学系,天津,300072;天津大学化工学院应用化学系,天津,300072;天津大学化工学院应用化学系,天津,300072;天津大学化工学院应用化学系,天津,300072 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目 |
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| 摘 要： | 研究L iCoO2(或L1.05Co1/3N i1/3Mn3O2)/L ixC6锂离子电池材料的热分解特性以及锂离子电池在加热、过充、短路等情况下的爆炸机理.实验表明,50~350℃之间负极表面存在SEI膜的分解、L ixC6与电解液乃至L ixC6与PVDF等3种放热反应,电解液于178℃时开始放热,L i1-xCo1/3N i1/3Mn1/3O2的热分解反应起始于230℃.锂离子电池在150℃加热时爆炸,1.5 C过充至15 m in时爆炸,短路情况下不发生爆炸.
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| 关 键 词： | 锂离子电池 爆炸机理 热稳定性 过充 短路 |
| 文章编号： | 1006-3471（2006）03-0266-005 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2006-03-03 |
Research of Explosion Mechanism of Lithium-ion Battery |
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| CHEN Yu-hong,TANG Zhi-yuan,HE Yan-bing,LIU Qiang.Research of Explosion Mechanism of Lithium-ion Battery[J].Electrochemistry,2006,12(3):266-270. |
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| Authors: | CHEN Yu-hong TANG Zhi-yuan HE Yan-bing LIU Qiang |
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| Institution: | Department of Applied Chemistry , School of Chemical Engineering and Technology, Tianjin300072 , China |
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| Abstract: | The heat character of Lithium-ion battery materials and explosion mechanism of Lithium-ion cells under the overcharge,short-circuit and other abuse behavior are tested by C_(80) calorimeter,_()DSC and charge-discharge instrument.SEI reactions,Li_xC_(6)/electrolyte and Li_xC_(6)/PVDF reactions take place at the anodes.Electrolyte and solvent reactions happen after 178℃ and Li_(1-x)Co_(1/3)Ni_(1/3)Mn_(1/3)O_(2) decomposes after 230℃.The batteries explode at 150℃ oven test or 1.5C,5.5 V overcharge and do not explode at short-circuit. |
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| Keywords: | Lithium-ion battery Explosion mechanism Thermal stability Overcharge Short-circuit |
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