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OwnerPeter Haug, Peter Birke +2inventors
InventorsPeter Haug, Peter Birke, Konrad Holl, Dejan Ilic
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In a galvanic element having at least one lithium-intercalating electrode, whose electrochemically active material is applied onto a metallic output conductor, in the form of foil, the metallic output conductor is provided on its surface with electrochemically deposited crystallites of a second or identical metal, which enlarge the contact area and reduce the contact resistance to the active material. The substrate material is chosen from Al, Cu, V, Ti, Cr, Fe, Ni, Co or alloys of these metals, or from a corrosion-resistant stainless steel, and the deposited metal is chosen from Cu, Vi, Ti, Cr, Fe, Ni, Co, Zn, Sn, In, Sb, Bi, Ag or alloys of these metals. The crystallite size of the electrochemically deposited material is between 1 and 25 μm, preferably between 1 and 10 μm, and a maximum of 10 crystallite layers, preferably 1 to 3 cyrstallite layers, are deposited on the substrate sheet.
A galvanic element comprising at least one lithium-intercalating electrode having electrochemically active material applied to a metallic output conductor or a substrate sheet, in the form of foil, wherein the metallic output conductor or substrate sheet has on a surface thereof electrochemically deposited crystallites of a second or substantially identical metal, the crystallites enlarging contact area of the element and reducing contact resistance to the active material.
Dependencies are inferred from the claim text.