BATTERY CELL REFILLABLE WITH ELECTROLYTE, BATTERY PACK, ELECTROLYTE REFILLING SYSTEM FOR BATTERY PACK, AND ELECTROLYTE REFILLING METHOD FOR BATTERY PACK

The present invention relates to a battery cell refillable with an electrolyte, an electrolyte refilling system for a battery pack configured to include a plurality of battery cells, and an electrolyte refilling method for a battery pack of an electric vehicle.