Electrolyte for an electrochemical battery cell and battery cell containing the electrolyte

摘要

The invention relates to an electrolyte for an electrochemical battery cell, containing sulfur dioxide and a conductive salt. Improved characteristics of a cell filled with the electrolyte are achieved by the molar concentration of hydroxide groups in the electrolyte being at most 50 mmol per liter and the molar concentration of chlorosulfonate groups in the electrolyte being at most 350 mmol per liter.