| abstract |
Provided is a particulate electrode material for an electrode of a hybrid battery/capacitor, in which the battery constituent is a lithium-ion battery. The electrode material comprises: a group of hybrid particle structures, each hybrid particle structure consisting of electrode material and capacitor material, each hybrid particle structure being characterized by a core particle composed of active anode material or of active cathode material for a lithium-ion battery, each core particle being covered by a porous shell of smaller carbon particles, the carbon particles being porous and serving as capacitor material in the group of hybrid particle structures, the porosity of the shells of capacitor material particles enabling lithium ions in a selected non-aqueous solution of a lithium electrolyte salt to interact with both the active anode material or the active cathode material of the core particle and the porous carbon capacitor particles of the shell. Also provided is a method of forming hybrid particle structures. |