liquid electrolyte for a lithium battery ion, lithium-ion accumulator and method for charging a lithium-ion accumulator

liquid electrolyte for a lithium battery ion comprising at least: - a lithium salt, - at least 50% by mass of an organic solvent non-carbonated, the percentage weight being calculated relative to the total weight of organic solvent present in the electrolyte , the organic solvent non-carbonated being selected from esters, ethers, sulfones and sulfoxides.