Patent ID: 6949318

Claim:
A polymeric gel electrolyte, comprising: a first ionic conductive polymer having a weight-average molecular weight of greater than or equal to 5,000 and smaller than 100,000; a second ionic conductive polymer having a weight-average molecular weight of 100,000 to 5,000,000; and an electrolytic solution comprised of a lithium salt, an organic solvent, and a component surrounding the lithium, wherein the component is selected from the group consisting of polyethyleneglycol dimethylether, polyethyleneglycol diethylether, polyethyleneglycol dimethacrylate, polyethyleneglycol diacrylate, polypropyleneglycol dimethacrylate, polypropyleneglycol diacrylate, and mixtures and combinations thereof, wherein the content of the component in the electrolytic solution is within the range of from about 1 to about 40 parts by weight, based on 100 parts by weight of the electrolytic solution.