Metallic porous body and method of manufacturing the same and battery current collector having the same

摘要

A metallic porous body comprises a metallic framework having a three-dimensional network with a continuous-pore structure formed by linking sub-stantially polyhedral cells. The substantially polyhedral cells have an average cell diameter of about 200 to about 300 mum and an average window diameter of about 100 to about 200 mum. The metallic porous body can be obtained by the following method, for instance: First, a plastic porous body is provided that has an average cell diameter of about 200 to about 300 mum and an average window diameter of about 100 to about 200 mum. Second, a conductive layer is formed on a surface of the framework of the plastic porous body to produce a conductive porous body having a resistivity of about 1 kOMEGA.cm or less. Finally, a continuous metal-plated layer is formed on a surface of the conductive layer by electroplating, with the conductive porous body serving as the cathode. The above-mentioned current collector is provided by filling an active material into the pores of the metallic porous body.