Title :
Calorimetric determination of thermal parameters of the Li/BrCl in SOCl2 (BCX) chemistry
Author :
Darcy, Eric C. ; Kalu, Eric E. ; White, Ralph E.
Author_Institution :
NASA-Johnson Space Center, Houston, TX, USA
Abstract :
The heat capacity of a Li-BCX DD-cell was found to be dependent on its state of charge by drop calorimetry measurements. The method of drop calorimetry involves measuring the energy (Joules) gained or lost from a sample that is transferred from a bath at temperature A to one at temperature B. The thermoneutral potential is defined as the cell potential where the cell electrochemical reactions are neither exothermic nor endothermic. A Hart scientific calorimeter system, Model was used. Calorimetric analysis yielded a thermoneutral potential of 4.14 volts and a cell heat capacity dependent on the state of charge
Keywords :
bromine compounds; calorimetry; electrochemistry; heat conduction; lithium compounds; primary cells; Hart scientific calorimeter system; Li-BCX DD-cell; Li-BrCl-SOCl2; cell electrochemical reactions; drop calorimetry measurements; energy measurement; heat capacity; heat conduction calorimetry; state of charge; thermal parameters; thermoneutral potential; Aluminum; Batteries; Calorimetry; Chemistry; Heat transfer; Q measurement; Space heating; Space shuttles; Temperature; Voltage;
Conference_Titel :
Power Sources Symposium, 1990., Proceedings of the 34th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-87942-604-7
DOI :
10.1109/IPSS.1990.145831
