Water-in-salt electrolytes for aqueous lithium-ion batteries with liquidus temperatures below-10 °C
Water-in-salt electrolytes for aqueous lithium-ion batteries with liquidus temperatures below-10 °C
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DOI：
10.1039/c9cc04495g
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发表时间：
2019-10-14
影响因子：
4.9
通讯作者：
Battaglia, Corsin
中科院分区：
文献类型：
--
作者：
Becker, Maximilian;Kuehnel, Ruben-Simon;Battaglia, Corsin
近室温结晶是盐包水电解液面临的共同挑战。我们证明了基于锂(pentafluoroethanesulfonyl)(trifluoromethanesulfonyl)imide的盐中水电解液在热力学上保持在至少零下10摄氏度的液体状态，结合其出色的化学和电化学稳定性以及高锂离子电导率，这些电解液是下一代高压水基锂离子电池的关键推动因素。
Crystallization near room temperature is a common challenge for water-in-salt electrolytes. We demonstrate that water-in-salt electrolytes based on lithium (pentafluoroethanesulfonyl)(trifluoromethanesulfonyl)imide remain thermodynamically in the liquid state down to at least -10 degrees C. Combined with their excellent chemical and electrochemical stability as well as high lithium-ion conductivity, these electrolytes represent a key enabler for the next generation of high-voltage aqueous lithium-ion batteries.