NOVELTY - The microarchitectured battery comprises a first cell, a first portion including a first substrate, a second portion including a second substrate, and a separator placed between the first portion and the second portion. A thin-film current collector and a thin-film anode- and cathode electrode material are formed on the first and second substrates respectively, characterized by a highly porous microstructure, and provided by a physical vapor deposition process. The separator is arranged to separate the anode electrode material from the cathode electrode material.    USE - The microarchitectured battery is useful in microelectromechanical systems (claimed) and useful to create microscopic footprints.    ADVANTAGE - The battery is small and lightweight enabling creation of autonomous and remote sensor networks, compatible with solid thin-film electrolyte or liquid or gel solutions of electrolyte and capable of hermetically sealing the microelectromechanical systems, and has high gravimetric and volumetric energy and power, Faradic efficiency and low internal resistance and low power leakage due to high precision manufacturing.    DETAILED DESCRIPTION - The microarchitectured battery comprises a first cell, a first portion including a first substrate, a second portion including a second substrate, and a separator placed between the first portion and the second portion. A thin-film current collector and a thin-film anode- and cathode electrode material are formed on the first and second substrates respectively, characterized by a highly porous microstructure, and provided by a physical vapor deposition process. The separator is arranged to separate the anode electrode material from the cathode electrode material. The thin-film anode electrode materials and the thin-film cathode electrode materials comprise highly porous microstructures. An electrolyte is present in contact with the anode electrode material, the cathode electrode material and the separator. Each substrate comprises a glass that is etched or ablated to provide a cavity to receive the current collector and the anode or cathode electrode material respectively. The first microarchitectured battery cell and other microarchitectured cells are electrically coupled in series or in parallel. An INDEPENDENT CLAIM is included for a method of making a battery.    DESCRIPTION OF DRAWING(S) - The figure shows a multiple cell micromachined battery.    Battery cells (12')    Conductive taps. (36')