Patent ID: 6902848

Claim:
A lithium battery comprising: a power-generating element comprising a positive electrode, a negative electrode and a separator, each of which comprises a gel electrolyte comprising: a polymer comprising a polymerized polyfunctional (meth) acrylate monomer; and a liquid electrolyte, a concentration of lithium salt in said liquid electrolyte being in a range from 2 to 4 mols per liter of the liquid electrolyte, said gel electrolyte comprising said polymerized polyfunctional (meth) acrylate monomer in a range from 5% to 30% by weight, based on a total weight of said polymer and said liquid electrolyte, wherein said gel electrolyte in said separator comprises a polyfunctional (meth) acrylate monomer that is different than said polyfunctional (meth) acrylate monomer in said gel electrolyte in said positive and negative electrodes.