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

Claim 20:
21. 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 cathode is made by combining particles of a cathode active material, a conductive additive, and a resin binder that bonds the cathode active material particles and the conductive additive together to form a cathode active layer having pores and wherein the pores are filled with the ion-conducting polymer and the second liquid solvent wherein the ion-conducting polymer is different than the resin binder in chemical composition or structure.