Patent ID: 7084002

Claim:
A method for manufacturing a nano-structured metal oxide electrode, comprising: (i) preparing an alumina or polymer template having a plurality of nano-sized pores; (ii) sputtering a metal acting as a current collector having a thickness of a few tens of μm in one surface of said alumina or polymer template; (iii) contacting the alumina or polymeric template having a current collector deposited thereon with a precipitation solution having a metal salt dissolved therein, and applying a current or electrode electric potential; (iv) electrochemically precipitating a metal oxide in the nano-sized pores of said alumina or polymeric template; (v) contacting said nano-structure metal oxide composite of the alumina or polymer template and the precipitated metal oxide with a sodium hydroxide solution under conditions conducive to removing the alumina or polymeric template; and (vi) drying said nano-sized metal oxide to provide the nano-structured metal oxide electrode.