Patent ID: 9748569
Date: 2017-08-29
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A method of forming a porous thin film battery comprising: forming a porous thin film cathode on a substrate that includes: forming a plurality of layers of a cathode material on the substrate, each of the plurality of layers of the cathode material including a thickness between about 1 and about 50 micrometers; forming a plurality of layers of a polymer material, wherein the plurality of polymer material layers are disposed between at least a portion of the plurality of cathode material layers, and each of the plurality of layers of the polymer material includes a thickness between about 1 and about 50 micrometers; annealing the plurality of cathode material layers and the plurality of polymer material layers to form a cathode combination layer; and removing the polymer material to form a plurality of pores in the cathode combination layer; forming an electrolyte layer on the porous thin film cathode; and forming a porous thin film anode on the electrolyte layer that includes: forming a plurality of layers of an anode material layer on the substrate in a co-sputtering process, the anode material including silicon, and each of the plurality of layers of the anode material including a thickness between about 1 and about 50 micrometers; forming a plurality of layers of a monomer material in the co-sputtering process, wherein the plurality of monomer material layers are disposed between at least a portion of the plurality of anode material layers; converting the plurality of monomer material layers to a plurality of polymer material layers; annealing the plurality of anode material layers and the plurality of polymer material layers to form a anode combination layer; and removing the polymer material to form a plurality of pores in the anode combination layer.