氟化物
盐(化学)
电解质
离子
溶解度
溶解
电池(电)
无机化学
化学
锂(药物)
溶剂化
溶剂
电化学窗口
化学工程
离子电导率
有机化学
电极
物理化学
功率(物理)
内分泌学
工程类
物理
医学
量子力学
作者
Omar Alshangiti,Giulia Galatolo,Gregory J. Rees,Hua Guo,James A. Quirk,James A. Dawson,Mauro Pasta
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-05-22
卷期号:8 (6): 2668-2673
被引量:1
标识
DOI:10.1021/acsenergylett.3c00493
摘要
The fluoride ion battery (FIB) is a promising post-lithium ion battery chemistry owing to its high theoretical energy density and the large elemental abundance of its active materials. Nevertheless, its utilization for room-temperature cycling has been impeded by the inability to find sufficiently stable and conductive electrolytes at room temperature. In this work, we report the use of solvent-in-salt electrolytes for FIBs, exploring multiple solvents to show that aqueous cesium fluoride exhibited sufficiently high solubility to achieve an enhanced (electro)chemical stability window (3.1 V) that could enable high operating voltage electrodes, in addition to a suppression of active material dissolution that allows for an improved cycling stability. The solvation structure and transport properties of the electrolyte are also investigated using spectroscopic and computational methods.
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