▎ 摘　　要

NOVELTY - Composition comprises composite matrix polymer and electrolyte, where the composite matrix polymer comprises a first matrix polymer, and a second matrix polymer and/or additives, the first matrix polymer comprises a fluoropolymer with a dielectric constant of 10 or more, the second matrix polymer comprises a polymer having lithium ion conductivity, and the additives are chosen from graphene oxide, carbon quantum dots, and carbon oxide nanotubes. USE - The composition is used for gel electrolyte in flexible battery (all claimed). ADVANTAGE - The composition produces flexible battery has high current charging and discharging performance and safety performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a flexible battery comprising a positive electrode, a negative electrode, and the gel electrolyte arranged between the positive electrode and the negative electrode; and (2) a method for preparing a flexible battery comprising mixing the additive with the first polar solvent to form a first mixed liquid, adding the first matrix polymer to the first mixed solution and heating at a temperature of 30-60 degrees C to form a second mixed solution, adding the second matrix polymer to a second polar solvent and heating at a temperature of 30-80 degrees C to form a third mixed liquid, and mixing the second mixed liquid with the third mixed liquid and heating at a temperature of 30 to 80 degrees C to form a fourth mixed liquid, arranging the fourth mixed solution between the positive electrode coating layer and absorbing the negative electrode coating layer, and the electrolyte after gelation to prepare a gel electrolyte composite battery core.