Patent · US Expired

Zinc-alkaline battery

US4735876A · kind A · utility

28Cited by
2References
5Claims
0Family size

Assignees

Inventors

Key dates

Filing dateNov 26, 1986
Grant dateApr 5, 1988
Priority date
Expiry dateNov 26, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

This invention uses a zinc alloy containing In, one element of Al or Mg and, optionally, one or both of Pb and Cd for the anode of a zinc-alkaline battery which employs zinc as an active material of the anode (2), aqueous alkaline solution as an electrolyte, and manganese dioxide, silver oxide, oxygen and so forth as an active material of the cathode (5). The use of such zinc alloy permits the reduction of the amount to be used of mercury employed for amalgation of the anode zinc surface with the object of corrosion inhibition, thereby enabling the provision of a low pollution zinc-alkaline battery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.