POROUS METAL BODY MANUFACTURING METHOD AND POROUS ALUMINUM BODY, BATTERY ELECTRODE MATERIAL USING METAL POROUS BODY OR POROUS ALUMINUM BODY, AND ELECTRODE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITOR

A porous metal body containing continuous pores and having a low oxygen content is provided by decomposing a porous resin body that contains continuous pores and has a layer of a metal thereon by heating the porous resin body at a temperature equal to or less than the melting point of the metal while the porous resin body is immersed in a first molten salt and a negative potential is applied to the metal layer; and a method for producing the porous metal body is provided.