Patent ID: 7381495

Claim:
An do-it-yourself (DIY) thin film battery comprising: at least one solid electrolyte film that can be stored separately; an anodic component that can be separately stored, including an anode substrate, an anode current collector, an anode current collector extension and an anode active layer, wherein the anode substrate has a first side and a second side where the anode current collector and the anode current collector extension are respectively located, the anode current collector extension being electrically connected with the anode current collector, and the anode active layer being disposed at an outer surface of the anode current collector and being connected with the solid electrolyte film; and a cathodic component that can be separately stored, including a cathode substrate, a cathode current collector, a cathode current collector extension and a cathode active layer, wherein the cathode substrate has a first side and a second side where the cathode current collector and the cathode current collector extension are respectively located, the cathode current collector extension being electrically connected with the cathode current collector, and the cathode active layer being disposed at an outer surface of the cathode current collector, and being connected with the solid electrolyte film; wherein the solid electrolyte film, the anodic component and the cathode component are stacked together so that surfaces of the solid electrolyte film are in contact with the anode active layer and the cathode active layer respectively to generate a chemical reaction as well as a potential difference between the anode current collector and the cathode current collector.