The research progress of single-ion conducting polymer lithium borate salts

The commercial lithium salt LiPF 6 is extremely sensitive to moisture and easy to thermally decompose, which causes a catastrophe especially under high temperature conditions. The lithium borate salts with highly thermal stability and environmental benignancy have been developed and received extensive attention. Research progress of some lithium borate salts including a series of single ion polymeric lithium borate salts as to their synthetic strategies, electrochemical properties, advantages and disadvantages were reviewed in this paper. The perspective concerning application of these lithium borate salts in next-generation lithium batteries was discussed as well.