ELECTROLYTE ADDITIVE FOR LITHIUM-ION BATTERY

摘要

The invention relates to a lithium-ion battery electrolyte, including at least one block copolymer, characterized in that said block copolymer contains at least one polymer segment A, soluble in said electrolyte, and at least one polymer segment B, having a temperature T for solubilization in said electrolyte. The polymer segments A and B are present in sufficient amounts to make an increase in the viscosity of the electrolyte possible, preferably until the electrolyte gels at a temperature no lower than the temperature T. The ionic conduction is carried out by a solvent containing the copolymer and lithium salts.