Application of Dimethyl Sulfoxide as Solvent of Electrolyte Solution in Rechargeable Lithium Metal Batteries

作者：Yuan Zhenshan; Xu Qiang; Sang Lin; Ding Fei^*

来源：Chemical Journal of Chinese Universities, 2014, 35(9): 1994-1998.

DOI：10.7503/cjcu20140126

• Dimethyl sulfoxide(DMSO)
• Metal lithium
• Surface morphology
• Cycling efficiency

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 (LiBF6), 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.

• 出版日期2014-9-10
• 单位天津大学; 中国电子科技集团公司第十八研究所