Heat dissipation of primary and secondary batteries. [30-Ah Ni--Cd, 360-Ah Ag--Zn]

Journal Article · Fri Jan 01 04:00:00 EST 1965 · J. Spacecr. Rockets; (United States)

DOI:https://doi.org/10.2514/3.28339· OSTI ID:7320241

Gandel, M C; Kinsey, R H

Calorimetric data are given for the heat generated in a 30-Ah nickel-cadmium battery and a 360-Ah silver--zinc battery. Equations are also given to calculate the amount of heat generated. Heat dissipation in the silver(II) oxide region is about 20% less than in the silver(I) oxide region; also for silver--zinc cells, heat dissipation above 21 C, because of self-discharge, is an exponential function of temperature. About 70% of heat generated is due to polarization losses, the remainder is due to chemical inefficiencies. In nickel--cadmium batteries, a linear relationship is found between heat generation and current where I/sup 2/R heating is not significant.

• OSTI ID: 7320241
• Journal Information: J. Spacecr. Rockets; (United States), Journal Name: J. Spacecr. Rockets; (United States) Vol. 2:6; ISSN JSCRA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
CURRENTS
ELECTRIC BATTERIES
ELECTRIC CURRENTS
ELECTROCHEMICAL CELLS
ENERGY STORAGE SYSTEMS
HEATING
MEDIUM TEMPERATURE
METAL-METAL OXIDE BATTERIES
NICKEL-CADMIUM BATTERIES
POLARIZATION
SILVER-ZINC BATTERIES
TEMPERATURE DEPENDENCE