CURRENT COLLECTOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY

摘要

To provide a current collector for a nonaqueous electrolyte battery capable of improving the discharge capacity and charge/discharge efficiency of a battery, in which the content of oxygen in the surface of an aluminum porous body is low. The current collector for a nonaqueous electrolyte battery is made of an aluminum porous body, and the content of oxygen in the surface of the aluminum porous body is 3.1% by mass or less. Further, the aluminum porous body is made of an aluminum alloy containing at least one element selected from the group consisting of Cr, Mn and transition metal elements. The aluminum porous body can be prepared by a production method in which, after an aluminum alloy layer 2 is formed on the surface of a resin 1 of a resin body 1f having continuous pores, the resin body is heated to a temperature of the melting point of the aluminum alloy or less to thermally decompose the resin body 1f (resin 1) while applying a potential lower than the standard electrode potential of aluminum to the aluminum alloy layer 2 with the resin body (aluminum alloy layer-coated resin body 3) dipped in a molten salt.