MERCURY CELL BATTERY INVESTIGATION

Abstract

The rechargeable electrochemical system Zn/KOH/HgO-Ag was investigated from the viewpoint of aerospace requirements. Two versions of an exploratory research cell, with accompanying pellet type reference electrode, were successfully used during positive and negative electrode charge-discharge experiments. Zn anodes containing high percentages of Hg were discharged with efficiencies over 90% at rates up to 2000 ma/sq. in. under uninhibited conditions. The system of Zn-Hg-Ag was found compatible with electrolyte containing zincate. A cell cup retaining member for the high Hg-Zn alloy was fabricated and employed in completed cells. Discharge utilization obtained was comparable to that obtained in the research cell. A comprehensive study of separator materials was made. Positive electrode densification experienced during cycle testing appears to be related to cycle depth. Use of Pd in the positive electrode alloy improved charge efficiency.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1963
Accession Number
AD0296906

Entities

People

  • J.m. Booe
  • R.e. Ralston

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Artificial Satellites
  • Cellular Structures
  • Electrical Resistance
  • Electrodes
  • Fabrication
  • Instrumentation
  • Materials
  • Materials Processing
  • Measurement
  • Resistance
  • Separators
  • Storage Batteries
  • Tensile Strength
  • Test And Evaluation
  • Test Equipment
  • Test Vehicles

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Mathematics or Statistics

Technology Areas

  • Space
  • Space - Hall-Effect Thruster