Sealed Lithium Inorganic Electrolyte Cell.
Quarterly rept. no. 4, 1 Dec 74-28 Feb 75,
GTE LABS INC WALTHAM MASS
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Work was continued on testing D cells after storage. Data were obtained on the discharge capacity realized at various temperatures and with various discharge rates after the cells had been stored for one month at 55C or 72C. No capacity deterioration has been observed as a result of storage at elevated temperature, as long as the cells were discharged at low rates. Low discharge capacities were observed with these cells at higher rates andor lower discharge temperatures, probably due to mass transfer limitations of the passivating film. Voltage delay data were obtained for these cells in a form of time required to reach the cut off voltage of 2.0V after the initial drop at the start of discharge. A strong temperature dependence has been observed of this characteristic, suggesting a possible way of regenerating the cells after a prolonged storage at elevated temperatures.
- Electrochemical Energy Storage