Electrolyte for lithium-sulphur batteries and lithium sulphur batteries using the same

摘要

An electrolyte for a lithium-sulphur battery, the electrolyte comprising a solution of at least one electrolyte salt in at least two aprotic solvents. The components of the solution are selected so that the solution is eutectic or close to eutectic. Also disclosed is a lithium-sulphur battery including such an electrolyte. By using a eutectic mixture, the performance of the electrolyte and the battery at low temperatures is much improved.