Abstract

The dependence of the specific capacity of carbon cathodes used in Li/SO 2 cells on the cathode thickness and the binder content has been studied. At low c.d. the specific capacity increases with decrease in thickness, while at high c.d. the relation shows a maximum. For cathodes with a thickness above 1 mm the relation between the specific capacity and the c.d. is exponential. The pre-exponent in this relationship is determined by the pore volume and the volume electrochemical equivalent of lithium dithionate. The spatial distribution of the current in the cathode has also been investigated.

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