TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: Substrate component comprises polyethylene terephthalate (PET), biaxially oriented polypropylene film (BOPP), polyethylene naphthalate (PEN), polyimide, polyester, polypropylene, acrylact, arimide, or metallic material with thickness of less than or equal to 10 mu m. Battery cells are free from solid electrolyte interface/interphase (SEI) layers. Negative electrode material contains lithium metal alloy with melting point greater than or equal to 150 degrees C. Appliance is smartphone, cellular phone, radio or other portable communication device, laptop computer, tablet computer, portable video game system, MP3 player or other music player, camera, camcorder, RC car, unmanned airplane, airplane, vehicle, robot, underwater vehicle, satellite, GPS component, laser rangefinder, flashlight, electric street lighting, and other portable electronic devices. Energy storage device contains multi-cell rechargeable battery pack comprising set of solid state rechargeable cells and set of capacitors. Multicell rechargeable solid state battery pack contains heat transfer system and greater than or equal to 1 electronics controls configured to maintain operating temperature at 60-200 degrees C. Multicell rechargeable solid state battery pack is insulated by greater than or equal to 1 material with thermal resistance R-value of greater than or equal to 0.4 m2.K/(W.inch). Energy storage device is provided in vehicle at least partially powered by energy storage device. Preferred Parameters: Battery cells have energy densities of less than or equal to 50 Watt-hours/m2 of electrochemical cells. Battery cells have specific energies of greater than or equal to 300 Wh/kg, preferably greater than or equal to 700 Wh/kg. Battery cells are capable of achieving greater than or equal to 5,000 cycles while being cycled at 80% of rated capacity and with gravimetric energy densities of greater than or equal to 250 Wh/kg. Multicell rechargeable solid state battery pack has energy density of greater than or equal to 500 W/kg.