High capacity compact lithium thin film battery

A structure comprising:

• a cathode collector layer positioned along a substrate and lining a bottom and sidewalls of a trench within the substrate, wherein the substrate is constructed of a degenerately doped silicon-based material that makes ohmic contact with the cathode collector layer and is configured to allow for a back side ohmic metal contact to be patterned;
• one or more dicing channels etched into the substrate, wherein the one or more dicing channels are configured to define an edge of the structure and to reduce stresses associated with dicing of the structure;
• an anode collector layer;
• a cathode layer isostatically pressed and buried within the cathode collector layer lining the trench in the substrate, combined with a liquid electrolyte additive, wherein a top surface of the cathode layer is substantially flush with a top surface of the cathode collector layer, the cathode layer has a given density and porosity based on a duration and a pressure associated with the isostatic pressing, and the anode collector layer is in direct contact with the substrate to form a seal around the trench and around the cathode collector layer, wherein the anode collector layer is not in direct contact with the cathode collector layer;
• an anode layer positioned on top of an electrolyte layer, wherein the electrolyte layer separates the cathode layer from the anode layer;
• wherein the anode collector layer is positioned on top of the anode layer;
• and
• a cap layer positioned on top of an insulator layer, wherein the insulator layer separates the anode collector layer from the cap layer, and wherein the cap layer is constructed of the silicon-based material.