Engineering Evaluation of Thermal Insulation of Magnesium-Manganese Dioxide Dry Battery Performance

Abstract

Substantial improvements in magnesium-manganese dioxide (Mg/MnO2) dry battery performance were obtained by thermally insulating the battery to retain the heat evolved during discharge. The influence of discharge temperature at 130F and 220F on discharge capacity of individual cells is assessed relative to 74F capacity between the 25 and 100 hour discharge rate. Magnesium Batteries BA-4386/PRC-25 (A2 Section), surrounded by varying thicknesses of thermal insulation, were discharged at a constant 5 Watt drain at operating temperatures varying from minus 25 to plus 160F. Performance data are presented for Magnesium Battery BA-4840/U, with and without insulation, and with and without a nickel- cadmium (NiCd) battery in a hybrid configuration.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA008948

Entities

People

  • Donald B. Wood

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Battery Chargers
  • Communication Equipment
  • Dry Batteries
  • Energy
  • Engineering
  • Heat Energy
  • High Temperature
  • Hybrid Systems
  • Insulation
  • Low Temperature
  • Magnesium
  • Magnesium Batteries
  • New Jersey
  • Nickel Cadmium Batteries
  • Thermal Insulation
  • Thickness

Readers

  • Electrical Engineering
  • Plasma Physics.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics