| abstract |
The electrode material comprises a micro-array porous material. The micro-array porous material comprises a plurality of pores having a substantially uniform size of < 1000 μm with a dispersion of < 20%, and includes metals such as Ni, Al, Ti, Sn and Mn. The metal micro-array porous electrode material may be surface-treated to form a metal oxide on the surface of the porous electrode material, or may be coated with a metal oxide comprising RuO 2 , TaO. An electrical energy storage device containing the micro-array porous electrode material, such as a supercapacitor or a lithium battery, may have significantly improved performance compared to conventional materials. |