▎ 摘　　要

NOVELTY - Flexible battery comprises an integrated positive electrode, an integrated negative electrode and a gel electrolyte, where the integrated positive electrode includes positive electrode substrate and an aluminum atomic layer that is provided on the surface of the positive electrode substrate. A positive electrode active material layer is provided on the surface of the aluminum atomic layer. The integrated negative electrode includes negative electrode substrate and a copper atomic layer that is provided on the surface of the negative electrode substrate. A negative electrode active material layer is provided on the surface of the copper atomic layer. The gel electrolyte is disposed between the positive electrode active material layer and the negative electrode active material layer. USE - Flexible battery for wearable field. ADVANTAGE - The flexible battery effectively reduces the specific gravity of inactive materials, which is beneficial to improve the overall mass and volumetric energy density of the flexible battery.