A new ether-based electrolyte for dendrite-free lithium-metal based rechargeable batteries

• DOI: 10.1038/srep21771
• Publication Date: 2016-02-16T12:54:29Z
• Authors: Rongrong Miao; Jun Yang; Zhixin Xu; Jiulin Wang; Yanna Nuli; Limin Sun
• Keywords: Dimethoxyethane; Lithium metal; Dendrite (mathematics)

Abstract A new ether-based electrolyte to match lithium metal electrode is prepared by introducing 1, 4-dioxane as co-solvent into bis(fluorosulfonyl)imide/1,2-dimethoxyethane solution. Under the synergetic effect of solvents and salt, this simple liquid presents stable Li cycling with dendrite-free deposition even at relatively high current rate, coulombic efficiency ca. 98%, good anodic stability up ~4.87 V vs RE. Its excellent performance will open a possibility for energy-density rechargeable battery system.