| 二甲基亚砜在锂二次电池中的应用 |
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| 引用本文： | 袁振善,徐强,桑林,丁飞.二甲基亚砜在锂二次电池中的应用[J].高等学校化学学报,2014,35(9):1994-1998. |
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| 作者姓名： | 袁振善 徐强 桑林 丁飞 |
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| 作者单位： | 1. 天津大学化工学院, 天津 3000722. 中国电子科技集团公司第十八研究所化学与物理电源重点实验室, 天津 300381 |
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| 基金项目： | 化学与物理电源国防科技重点实验室基金(批准号:9140C16020212-DZ2801)资助~~ |
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| 摘 要： | 采用二甲基亚砜(DMSO)作为锂二次电池的电解液, 研究了锂在DMSO中的沉积形貌和循环效率. 比较了六氟磷酸锂(LiPF6)在DMSO、 碳酸丙烯酯(PC)和1,3-二氧环戊烷(DOL)3种溶剂中的沉积形貌和循环效率, 并研究了LiPF6、 四氟硼酸锂(LiBF4)、 高氯酸锂(LiClO4)和二(三氟甲基磺酰)亚胺锂(LiTFSI)4种锂盐在DMSO中的沉积形貌和循环效率. 结果表明, 锂在DMSO中沉积得到的表面光滑平整且致密均匀, 循环效率在前10周要高于在PC中的, 溶剂DMSO有望用于金属锂二次电池中.
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| 关 键 词： | 二甲基亚砜 金属锂 表面形貌 循环效率 |
| 收稿时间： | 2014-02-20 |
Application of Dimethyl Sulfoxide as Solvent of Electrolyte Solution in Rechargeable Lithium Metal Batteries† |
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| YUAN Zhenshan;XU Qiang;SANG Lin;DING Fei.Application of Dimethyl Sulfoxide as Solvent of Electrolyte Solution in Rechargeable Lithium Metal Batteries†[J].Chemical Research In Chinese Universities,2014,35(9):1994-1998. |
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| Authors: | YUAN Zhenshan;XU Qiang;SANG Lin;DING Fei |
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| Institution: | 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China2. National Key Laboratory of Power Sources, Tianjin Institute of Power Sources, Tianjin 300381, China |
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| Abstract: | Dimethyl sulfoxide(DMSO) was used as the solvent of electrolyte in the rechargeable lithium metal batteries. The lithium deposition morphology and cycling efficiency in DMSO, propylene carbonate(PC) and 1,3-dioxolane(DOL) with lithium hexafluorophosphate(LiPF6) as the solute and in DMSO with lithium hexafluorophosphate(LiPF6), lithium tetrafluoroborate(LiBF4), lithium perchlorate(LiClO4) or lithium bis(trifluoromethane sulfonimide)(LiTFSI)] as the solute respectively were investigated and compared. The resuts show that Li surface deposited in the DMSO solution was smooth and uniform and the lithium cycling efficiency in the DMSO solvent was higher than that in PC solvent in the first ten cyclings. |
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| Keywords: | Dimethyl sulfoxide(DMSO) Metal lithium Surface morphology Cycling efficiency |
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