Alkaline batteries containing a zinc powder with indium and bismuth

US5240793A · kind A · utility

Assignee

• Grillo-Werke AG · DE

Inventor

• Wolfgang Glaeser · Goslar, DE

Key dates

• Filing date: Sep 24, 1991
• Grant date: Aug 31, 1993
• Expiry date: Sep 24, 2011

Classification

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

Abstract

The zinc powder for alkaline batteries having a residual lead content of less than 30 ppm, an indium content of from 10 to 10,000 ppm, and preferably from 100 to 1,000 ppm, a gallium content of from 0 to 1,000 ppm and a content of alkali and/or alkaline earth metals of up to 1,000 ppm additionally contains from 10 to 10,000 ppm, and preferably from 100 to 1,000 ppm, of bismuth.