What question did this study set out to answer?

To develop an aqueous electrolyte that enables lithium-ion batteries to operate at higher voltages without degradation.

November 19, 2015Science

“Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries

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Authors

LSLiumin SuoChinese Academy of Sciences OBOleg BorodinArgonne National Laboratory TGTao GaoBeijing Technology and Business University

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Implication

Randomized trial highlights enhanced electrochemical performance in aqueous lithium-ion batteries, suggesting safer alternatives to flammable solvents.

Key Points

To develop an aqueous electrolyte that enables lithium-ion batteries to operate at higher voltages without degradation.
Created a concentrated aqueous salt solution with lithium bis(trifluoromethane sulfonyl)imide
Investigated the effects of high-concentration solutions on hydrogen evolution and electrode oxidation
Analyzed changes in the lithium solvation shell due to limited water availability
Achieved an electrochemical window of 3 V, surpassing the typical 1.23 V limit for aqueous systems
Suppressed hydrogen evolution reactions and reduced electrode oxidation
Presented a viable alternative to flammable organic electrolytes, improving battery safety

Cite This Study

Suo et al. (2015) studied this question.

synapsesocial.com/papers/69d750b3b1cb92dd1bb8a6cc https://doi.org/10.1126/science.aab1595

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Implication

Randomized trial highlights enhanced electrochemical performance in aqueous lithium-ion batteries, suggesting safer alternatives to flammable solvents.

“Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries

Discussion

Member takes

Implication

Key Points

Cite This Study

“Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries

Discussion

Member takes

Implication

Key Points

Cite This Study

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