Method for producing porous metal body, porous aluminum body, battery electrode material including porous metal body or porous aluminum body, and electrode material for electrical double layer capacitor

Abstract

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.

1 - 9 . (canceled) 
     
     
         10 . A porous aluminum body comprising continuous pores, wherein an oxygen content of a surface of the porous aluminum body is 3.1 mass % or less, the oxygen content being determined by energy dispersive X-ray spectroscopy (EDX) at an accelerating voltage of 15 kV. 
     
     
         11 . A battery electrode material comprising the porous metal body produced by the production method according to claim  1  and an active material held on the porous body. 
     
     
         12 . A battery comprising the battery electrode material according to  claim 11  for one or both of a positive electrode and a negative electrode. 
     
     
         13 . An electrode material for an electrical double layer capacitor, comprising the porous metal body produced by the production method according to claim  1  and an electrode active material that contains activated carbon as a main component and is held on the porous body. 
     
     
         14 . An electrical double layer capacitor comprising the electrode material for an electrical double layer capacitor according to  claim 13 . 
     
     
         15 . A method for producing a porous metal body, comprising decomposing a porous resin body that contains continuous pores and has a metal layer thereon by immersing the porous resin body in supercritical water.