Zinc-ion batteries(ZIBs)have emerged as a promising candidate in the grid scale energy storage,offering an alternative to conventional lithium-ion batteries.However,as research and development efforts in this field progress,it becomes increasingly important to address potential hazards associated with flammable gases and electrolyte components.This future paper aims to raise awareness of safety issues that may be overlooked and underscore two primary temperature-induced hazards:long-term cycling H2 gas accu-mulation and flammable organic solvents.We evaluate various electrolytes aimed at minimizing gas pro-duction and improving high-temperature adaptability.Particularly,we emphasize the effectiveness of electrolyte modifications,especially co-solvent approach in addressing the above safety concerns and suggest pathways for formulating practical safe electrolytes.Notably,apart from examining the inherent electrochemical stability window(ESW)of the electrolyte,we urge consideration of side reaction prod-ucts on electrode interfaces and high temperatures as factors influencing a battery's ESW.
Sailin Liu、Zaiping Guo
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School of Chemical Engineering,the University of Adelaide,SA 5000,Australia
Australian Research CouncilAustralian Research CouncilAustralian Research CouncilAustralian Institute of Nuclear Science and Engineering-Early Career Researcher Grant(S.L Liu)
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