KFSA/glyme electrolytes for 4 V-class K-ion batteries
KFSA/glyme electrolytes for 4 V-class K-ion batteries
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DOI：
10.1039/d0ta08851j
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发表时间：
2020-12-07
影响因子：
11.9
通讯作者：
Komaba, Shinichi
中科院分区：
文献类型：
--
作者：
Hosaka, Tomooki;Matsuyama, Tatsuo;Komaba, Shinichi
研制了用于高压钾离子电池的高浓度电解质KN（SO_2 F）（2）（KFSA）/二甘醇二甲醚和KFSA/三甘醇二甲醚。它们表现出高达4.7 V（相对于K/K+）的高氧化稳定性，这大大高于KFSA/单甘醇二甲醚电解质。此外，这些电解质可以改善高压K离子电池的循环稳定性。
Highly concentrated electrolytes of KN(SO2F)(2) (KFSA)/diglyme and KFSA/triglyme are developed for high-voltage K-ion batteries. They demonstrate high oxidation stability up to 4.7 V vs. K/K+, which is considerably higher than that of the KFSA/monoglyme electrolyte. Moreover, these electrolytes can improve the cycling stability of high-voltage K-ion batteries.