Rechargeability of the ambient temperature cell Li/2Me-THF, LiAsF/sub 6//Cr /SUB 0. 5/ V /SUB 0. 5/ S/sub 2/

Practical usefulness of Cr /SUB 0.5/ V /SUB 0.5/ S/sub 2/ as a rechargeable positive electrode for ambient temperature Li cells has been assessed. The rate-capacity behavior of the Cr /SUB 0.5/ V /SUB 0.5/ S/sub 2/ cathode has been evaluated as a function of carbon content, electrolyte, and temperature. Rechargeability of the disulfide has been investigated by extended cycling of Li cells utilizing 2MeTHF/LiasF/sub 6/. Cells with cathode capacities as large as 10 Ahr have been constructed and tested. Many cells have exceeded 200 deep discharge-charge cycles. A scheme of studies useful for assessing the practicality of potential solid cathodes for ambient temperature rechargeable Li cells is presented.