锂离子电池电解液的研究进展

从有机溶剂、电解质锂盐、添加剂三个方面,论述了锂离子电池的电解液研究进展情况。其中有机溶剂仍以碳酸酯为主,研究的重点是寻找功能添加剂;电解质锂盐的发展趋势是增大阴离子半径,降低离子间的作用力,提高它的溶解度和热稳定性。在电解液的选择方面,主要通过溶剂的物性参数及溶剂和锂盐的相容性来实现。

RESEARCH PROGRESS OF ELECTROLYTE FOR Li-ION BATTERIES

From the aspects of organic solvents,lithium salts and additives,research progress of the non-aqueous organic electrolyte for Li-ion batteries is reviewed.On the organic solvents,carbonate is a principal electrolyte and its research lays stress on seeking of functional additives.The developing tendency of lithium salts is to enlarge anion's radius and weaken the active force between ions,thus improving its solubility and thermostability.The selection of electrolyte is realized on the basis of adjusting solvent's physical parameters and compatibility between the solvents and lithium salts.