Method for producing electrolytically coated cold rolled strip, preferably for use in the production of battery sheaths, and battery sheath produced according to this method

US6923897B1 · kind B1 · utility

Assignee

• HILLE & MÜLLER GMBH · DE

Inventors

• Ferdinand Schmidt · Wilster, DE
• Hans-Güenter Steinmann · Goldkronach, DE
• Karlfried Pfeifenbring · Sörup, DE
• Werner Olberding · Velbert, DE
• Dagmar Petrick · Solingen, DE

Key dates

• Filing date: Oct 13, 2000
• Grant date: Aug 2, 2005
• Expiry date: Jun 17, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing an electrolytically coated cold rolled strip, preferably for use in the production of battery sheaths. The cold rolled strip is provided with a cobalt or a cobalt alloy layer by an electrolytic method. The aim of the invention is to provide a battery sheath with low values for the electric contact resistance between the cathode substance of the battery and the inner surface of the battery sheath. To this end, organic substances m added to the electrolyte during coating that produce decomposition products, said decomposition produces and/or reaction products of said decomposition products with other components of the electrolytic bath being deposited on the strip material as a brittle layer along with the cobalt or the cobalt alloy.