Low-Melting Mixture Solvents (LoMMSs): The Game-Changing Third-Generation Novel Green Solvents.

Low-melting mixture solvents (LoMMSs) were proposed in 2023 by Yu's group at Tsinghua University as the third generation of novel green solvents, representing a major advance following ionic liquids and deep eutectic solvents. However, there is no review about LoMMSs up to now. Here, we for the first time provide a concise summary on the basics of LoMMSs, physical properties, and their application in lithium-ion battery recycling and biomass utilization for the purpose of enriching green solvents and green chemistry. The contents of this review mainly include: (1) LoMMSs as a new generation of green solvents, (2) fundamentals of LoMMSs, (3) physical properties of LoMMSs, (4) typical application of LoMMSs in lithium-ion battery recovery and biomass utilization, (5) transition from LoMMSs to low-melting chemical solvents (LoMCSs) formed by chemical reactions of multiple components, (6) limitation and future challenge.