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Inhomogeneous Temperature Problems Inside a Li/SOC12 Cell; Homogenization by Integrated Heat Pipes
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Abstract
In the present paper, we are going to investigate the influence of the temperature gradient on the electrical capacity of the Lithium/thionyl chloride cells and the dependence of internal heat generation on the temperature level.
Moreover, we will show the influence of temperature gradient between couples on the depth of discharge and so how important is to limit this gradient to prevent discrepancy in couple's voltage and inversion phenomenon.
First, we present a theoretical study concerning the influence of temperature on the heat generation of lithium/thionyl chloride couple. This study, which is based on the thermoneutral potential, was carried out using calorimetry measurement. We also display the evolution of discharge tension and current with temperature.
Secondly, we present a real evolution of these parameters and that for a lithium battery cooled by an aluminium corset put on a coldplate. A nodal model has been made to simulate battery behaviour and different parameter's evolution for a realistic discharge profile.
It follows that pure conduction cooling system is not suitable in the case of high discharge currents in the cell lithium cells. A new cooling concept is proposed to overcome this problem [1].
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Citation
LeFriec, C., Suleiman, A., and Alexandre, A., "Inhomogeneous Temperature Problems Inside a Li/SOC12 Cell; Homogenization by Integrated Heat Pipes," SAE Technical Paper 921165, 1992, https://doi.org/10.4271/921165.Also In
References
- Alexandre. A Suleiman. A Theoretical and Experimental Study of a Heat Pipe in Zero-G for Electrochemical Cell Cooling 21st ICES San Francisco, Califoria 1991
- Suleiman A. 1992
- SAFT - Advanced Battery Group - Space Department
- Saulnier J.B. Alexandre A. o 280 371 383 1985
- Suleiman A. Alexandre A. Firmin J.L. Integrated heat pipe concept for Li/SOC12 cells cooling ESA SP-324 Florence, Italy 1991
- LeFriec C. septembre 91