Patent ID: 8232005

Claim:
A hybrid lead acid supercapacitor battery energy storage device comprising: a plurality of titanium core positive electrodes, a plurality of negative carbon electrode assemblies, a plurality of separators, a casing, and an acid electrolyte comprising an aqueous solution of sulfuric acid; wherein: (a) each of the titanium cores has an expanded metal body portion; (b) each of the titanium cores is a titanium alloy containing from 0.01 to 0.9% of a platinum group metal; (c) said titanium cores each having a hot dip coating selected from the groups of lead and lead alloy; (d) said each carbon electrode assembly comprises a negative current collector comprising a sheet of metal; (e) two sheets of electronically conductive corrosion resistive shield material sealing said sheet of metal between them; and (g) a sheet of activated carbon and a binder adhered to and in electrical contact with a surface of said shield material.