| abstract |
The present invention relates to a method of removing moisture in a cathode for a lithium-sulfur battery, and more particularly, to a method for removing moisture in a cathode for a lithium-sulfur battery, which comprises impregnating a cathode for a lithium-sulfur battery in a drying solution comprising a specific solvent and a strong acid, The water content is reduced to 400 ppm or less, and the process time can be greatly reduced. The anode for a lithium-sulfur battery in which moisture is removed by the above method has low evaporation of sulfur, which is an active material in the electrode, and low residual moisture, thereby improving battery characteristics. |