Nickel foams, which are widely used in alkaline batteries since the beginning of the 80s as current collector of the positive electrode, are produced on an industrial scale in very large quantities.

Copper foams, with high porosity and totally open pores, can now be produced by an industrial technology developed by SCPS.
They meet complementary and various markets, thanks to higher electric and thermal conductivities and lower cost.

The range of porosity, expressed in PPI (Pores Per Inch), is similar to nickel foams since the raw material, PU foam, is the same : pore diameter can vary from 0.25 to 3 mm.

Thickness range from 1.5 to 5 mm, and copper density from 0.3 to 0.6 g.cm-3.

Mechanical limitations of course reduce the number of combinations thickness-density of the copper foam.

The manufacture of copper alloys is possible, by electrolytic deposit or by successive deposits of metals followed by a thermal diffusion treatment.