Zhiying Lai

Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. References 1 and , “Towards Greener and More Sustainable Batteries for Electrical Energy Storage,” Nature Chemistry 7, no. 1 (2015): 19–29, https://doi.org/10.1038/nchem.2085. 2, , , , , and , “Fluorine Chemistry in Lithium-Ion and Sodium-Ion Batteries,” Energy Materials 3, no.

Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. References 1 and , “Towards Greener and More Sustainable Batteries for Electrical Energy Storage,” Nature Chemistry 7, no. 1 (2015): 19–29, https://doi.org/10.1038/nchem.2085. 2, , , , , and , “Fluorine Chemistry in Lithium-Ion and Sodium-Ion Batteries,” Energy Materials 3, no.

Abstract Deep eutectic solvents (DESs) are widely used owing to their excellent properties. This review elucidates the definition and formation mechanisms of DESs, compares them with conventional solvents, and provides a classification. The roles of DESs in battery chemistry and their applications in manufacturing and recycling are innovatively summarized. Perspectives are proposed to promote the green development of DESs in the renewable energy technologies.