NOVELTY - The three-dimensional battery comprises a three-dimensional porous carbon foam base, an anode current collector (150) bonded to and in electrical communication with a first region of the base, an electrolyte layer disposed over the base, a cathode current collector (155) bonded to and in electrical communication with a second region of the base, a polyphenyl oxide layer formed over the electrolyte layer, and a cathode layer (140) disposed over the electrolyte layer. The battery comprises a gravimetric energy of 150-200 W/kg at a 10C discharge rate. The base has a porosity of 98.5-61%.    USE - Used as a three-dimensional battery.    ADVANTAGE - The three-dimensional battery allows the transport of lithium ion between the anode and the cathode in both high energy and high power thus achieving simultaneous improvement in the form factor flexibility, a specific energy and a specific power, and provides improved power and energy performance without sacrificing energy density due to the short diffusion distances resulting from the large interfacial area between the electrodes.    DETAILED DESCRIPTION - The three-dimensional battery comprises a three-dimensional porous carbon foam base, an anode current collector (150) bonded to and in electrical communication with a first region of the base, an electrolyte layer disposed over the base, a cathode current collector (155) bonded to and in electrical communication with a second region of the base, a polyphenyl oxide layer formed over the electrolyte layer, and a cathode layer (140) disposed over the electrolyte layer. The battery comprises a gravimetric energy of 150-200 Wh/kg at a 10C discharge rate. The base has a porosity of 98.5-61%, a pore size of 1-100 mu m, a cell size of 5-5000 mu m, a density in a range of 0.03-0.6 g/cm3, a compressive strength in a range of 0.2-60 MPa, a resistivity of 1.4x 10-3 ohms/cm, and a lithium ion capacity of 160 mAh/g. The polyphenyl oxide layer has a thickness of 20-200 nm. The cathode current collector is present in electrical communication with the cathode layer. An INDEPENDENT CLAIM is included for a method of making a three-dimensional battery.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a carbon foam based three-dimensional battery cell.    Cathode layer (140)    Separator layer (145)    Anode current collector (150)    Cathode current collector (155)    Pores. (156)