High Energy Sealed Nickel-Zinc Batteries.

Abstract

A sealed 7 Ah/6.5 volt nickel-zinc battery has been developed which is capable of 160-200 cycles of operation at approximately 60% depth of discharge at the C/4 rate. Initial energy density obtained was 28 Wh/lb at the C/4 discharge rate. The battery will deliver about 40% of its energy at -20F at the C/4 rate. With silver amalgam oxygen recombination electrodes the battery is capable of continuous overcharge at 0.5 amperes at a safe steady state pressure below 50 psi. Improved inorganic separators (ERC-2002) have been developed which are chemically inert in KOH, have a uniform pore size distribution and stop the occurrance of zinc dendrites. The primary cause of failure of the battery was found to be from the zinc electrode failure. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1973
Accession Number
AD0772944

Entities

People

  • Allen Charkey

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Electrodes
  • Energy
  • Energy Storage
  • High Energy
  • Nickel Zinc Batteries
  • Pressure Distribution
  • Separators
  • Steady State

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Underwater engineering and Marine Technology.