电解质
材料科学
金属锂
水溶液
锂(药物)
化学工程
膜
对偶(语法数字)
金属
无机化学
电化学
纳米技术
化学
冶金
有机化学
电极
遗传学
内分泌学
生物
文学类
艺术
医学
工程类
物理化学
作者
Qifei Wang,Changhao Wang,Yu Qiao,Haoshen Zhou,Jihong Yu
标识
DOI:10.1002/adma.202401486
摘要
Aqueous electrolytes and related aqueous rechargeable batteries own unique advantage on safety and environmental friendliness, but coupling high energy density Li-metal batteries with aqueous electrolyte still represent challenging and not yet reported. Here, this work makes a breakthrough in "high-voltage aqueous Li-metal batteries" (HVALMBs) by adopting a brilliant hybrid-electrolytes strategy. Concentrated ternary-salts ether-based electrolyte (CTE) acts as the anolyte to ensure the stability and reversibility of Li-metal plating/stripping. Eco-friendly water-in-salt (WiS) electrolyte acts as catholyte to support the healthy operation of high-voltage cathodes. Most importantly, the aqueous catholyte and non-aqueous anolyte are isolated in each independent chamber without any crosstalk. Aqueous catholyte permeation toward Li anode can be completely prohibited without proton-induced corrosion, which is enabled by the introduction of under-liquid dual super-lyophobic membrane-based separator, which can realize the segregation of the most effective immiscible electrolytes with a surface tension difference as small as 6 mJ m
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