Evaluation of Plasma-Sprayed, Thin-Film Pyrite Cathodes for Thermal Batteries
Date Published: 1999-08-02
Paper Number:1999-01-2513
DOI: 10.4271/1999-01-2513
Citation:
Guidotti, R., Reinhardt, F., Ye, H., Xiao, T. et al., "Evaluation of Plasma-Sprayed, Thin-Film Pyrite Cathodes for Thermal Batteries," SAE Technical Paper 1999-01-2513, 1999, doi:10.4271/1999-01-2513.
Thermal batteries are normally constructed using pressed- powder anode, separator, and cathode pellets (discs). However, parts less than 0.010\mi thick are difficult to press from the starting powders. The use of plasma spraying to deposit thin pyrite films onto a stainless steel substrate was examined as an alternative to pressed-powder cathodes. The electrodes were tested under isothermal conditions and constant-current discharge over a temperature range of 400\mDC to 550\mDC using a standard LiSi anode and a separator based on the LiCl-KCl eutectic. The plasma-sprayed cathodes were also evaluated in similar 5-cell thermal batteries. Cells and batteries using pressed-powder cathodes were tested under the same conditions for comparative purposes.
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