HYBRID ENERGY STORAGE AND DELIVERY DEVICES FOR HYBRID ELECTRIC VEHICLES

A hybrid energy storage and delivery device includes a plastic enclosure that establishes a first sealed chamber and a second sealed chamber. The first sealed chamber is configured as a fuel tank for storing a liquid fuel and the second sealed chamber is configured as a battery pack for storing electrical energy. Thus, the fuel tank and battery pack may be integrated together within a single enclosure in order to improve vehicle packaging efficiencies.