Poröses Metallblech als Substrat für eine Batterieelektrode und Verfahren zu seiner Herstellung

摘要

Metallic powders are extruded from a spinning nozzle to form metallic fibers each having a diameter of 1.0 mu m - 100 mu m. Then, the resultant metallic fibers are formed into a sheet having a porous structure such as a nonwoven sheet, or the like. Thereafter, the sheet is sintered. An active substance is applied to pores of a resultant porous metallic sheet to be used as an electrode substrate of a battery. The metallic fibers are three-dimensionally intertwined with each other by using fluid at a high pressure and a high speed and then, surfaces of the metallic fibers intertwined with each other is fused under pressure at a temperature lower than the melting point of the metal to directly connect intersections of the intertwined metallic fibers so as to form a porous metallic sheet.