A new ether-based electrolyte for dendrite-free lithium-metal based rechargeable batteries.
A new ether-based electrolyte for dendrite-free lithium-metal based rechargeable batteries.
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DOI：
10.1038/srep21771
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发表时间：
2016-02-16
影响因子：
4.6
通讯作者：
Sun L
中科院分区：
文献类型：
--
作者：
Miao R;Yang J;Xu Z;Wang J;Nuli Y;Sun L
在双(氟磺酰亚胺)锂/1，2-二甲氧基乙烷溶液中引入1，4-二氧六环作为助溶剂，制备了一种与锂金属电极匹配的新型醚基电解液。在溶剂和盐的协同作用下，这种简单的液体电解液即使在较高的电流速率下也表现出稳定的Li循环和无枝晶的Li沉积，高的库仑效率约为98%，良好的阳极稳定性可达~4.87 V vs Li RE。其优异的性能将为高能量密度可充电锂金属电池系统开辟新的可能性。
A new ether-based electrolyte to match lithium metal electrode is prepared by introducing 1, 4-dioxane as co-solvent into lithium bis(fluorosulfonyl)imide/1,2-dimethoxyethane solution. Under the synergetic effect of solvents and salt, this simple liquid electrolyte presents stable Li cycling with dendrite-free Li deposition even at relatively high current rate, high coulombic efficiency of ca. 98%, and good anodic stability up to ~4.87 V vs Li RE. Its excellent performance will open up a new possibility for high energy-density rechargeable Li metal battery system.