TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The device further comprises a substrate and the overlying multiple layers, where the overlying multiple layers are free from any intermediary substrate member, and the multiple layers are configured to form many electrochemical cells configured in a parallel arrangement or a serial arrangement using either a self terminated or post terminated connector configuration. The device further comprises: a diffusion coefficient of less than or equal to 10-6 cm2/second characterizing the polymer based coating; and water vapor transmission rate of greater than 10-4 gm/m2/day; an energy density of greater than or equal to 500 watt-hours/liter.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: In the method, forming of the polymer based coating comprises dipping, spraying, electrostatic spraying, flame spraying, arc spraying, laser spraying, atmospheric plasma polymerization, vacuum plasma polymerization, sub atmosphere condensation, spin coating, atmospheric condensation, ultrasonic ammonization, modified atmosphere coating (e.g. argon) and/or modified nano-spraying ( e.g. fumed silica). Preferred Components: The polymer based coating is epoxy, polyurethane, thermoplastics, acrylate ceramics, liquid crystals, phenol formaldehyde, butadiene or acrylonitrile, phthalic acid, polyvinylidene chloride, silicon, PTFE, silica, graphite, carbon black, magnesium oxide, silicon dioxide, silicon carbide, titanium carbide, aluminum oxide and/or poly(methyl methacrylate). The spatial volume is less than or equal to 1l, where: the polymer based coating comprises a desiccant material; the polymer based material comprises a moisture barrier and a static discharge material; and the polymer material comprises many gettering materials. The polymer based material comprises multilayers including barrier, getter, adhesion, modulus modifying, stress modifying, electrical conductivity modifying, color modifying and surface energy modifying. The polymer based material has a conformal characteristic and is pliable. The polymer based coating has a sufficient rigidity and thickness to enclose many layers and provide mechanical protection to the layers.