NOVELTY - A high-energy-storage multi-medium capacitor-lead acid battery has a housing, a negative terminal on housing, a positive terminal, a positive electrode located within housing, a negative electrode, a separator and an electrolyte. The separator is located between positive electrode and negative electrode. The positive electrode sheet has a positive electrode foil and anode aluminum foil, positive electrode layer, positive electrode active material layer and positive protective layer.    USE - High-energy-storage multi-medium capacitor-lead acid battery is used for mobile or fixing power supply.    ADVANTAGE - The high-energy-storage multi-medium capacitor-lead acid battery has high charging/discharging speed, capacity of 95% or more, charging/discharging circle of 70000 times or more, excellent durability, energy storage density of 5-10 kWh/kg and wide temperature limiting amplitude, and is environmentally-friendly. The temperature in work condition of high-energy-storage multi-medium capacitor-lead acid battery is -40 degrees C to 70 degrees C.    DETAILED DESCRIPTION - A high-energy-storage multi-medium capacitor-lead acid battery has a housing, a negative terminal on housing, a positive terminal, a positive electrode located within housing, a negative electrode, a separator and an electrolyte. The positive electrode includes positive electrode sheet. The negative electrode includes negative electrode sheet. The separator is located between positive electrode and negative electrode. The positive electrode sheet has a positive electrode foil and anode aluminum foil, positive electrode layer comprising carbon nanotube, activated carbon, graphene, nano-micro-electrolysis-purified component and polyvinylidene fluoride binder composite, positive electrode active material layer and positive protective layer. The positive electrode active material layer contains nickel-cobalt-lithium manganate, lithium-iron phosphate and high-specific-volume tantalum nano powder, nano-micro-electrolysis-purified component and polyvinylidene fluoride binder composite. The negative electrode sheet has cathode aluminum foil, negative electrode sheet comprising carbon nanotubes, activated carbon, graphene, nano-micro-electrolysis-purified component and polyvinylidene fluoride binder composite, negative electrode active material layer and negative protective layer. The negative electrode active material layer contains lithium titanate, carbon nanotubes, activated carbon, graphene, nano-micro-electrolysis-purified component and polyvinylidene fluoride binder composite. The positive protective layer and negative protective layer contain nano aluminum trioxide formed by electrolysis purification and polyvinylidene fluoride binder composite. The separator is polypropylene/polyethylene/polypropylene composite membrane. The electrolyte comprises lithium hexafluorophosphate and titanium fluoroalkylphosphate.