Patent ID: 11888119
Assignee: GLOBAL GRAPHENE GROUP, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of producing a rechargeable lithium battery cell comprising an anode, a cathode, a separator, and a quasi-solid electrolyte in ionic communication with the anode and the cathode, the method comprising (a) preparing a liquid electrolyte solution comprising an ion-conducting polymer dissolved or dispersed in a first liquid solvent, wherein the first liquid solvent includes a first lithium salt dissolved therein; (b) impregnating the electrolyte solution into the cathode, the anode, a porous structure of the separator, or the battery cell; (c) removing the first liquid solvent; and (d) impregnating a second liquid solvent into the cathode, the anode, the separator porous structure, or the battery cell, wherein the second liquid solvent includes a second lithium salt dissolved therein; wherein the ion-conducting polymer comprises a polymer having an ion conductivity from 10−8 S/cm to 10−2 S/cm when measured at room temperature without the presence of liquid solvent and the polymer does not occupy more than 30% by weight of the cathode, not counting a current collector weight, and a second liquid solvent-to-polymer ratio is from 1/100 to 95/5; and wherein at least one of the first liquid solvent and the second liquid solvent contains from 0.1% to 50% by weight of lithium salt relative to the ion-conducting polymer weight, wherein the method comprises impregnating the electrolyte solution into the cathode, removing the first liquid solvent, impregnating the second liquid solvent into the cathode prior to or after a step of combining the cathode, the anode, and the separator into a battery cell.