Abstract
Catalytic copolymerization of sulfur with 5-vinylbicyclo[2.2.1]hept-2-ene or tricyclo[5.2.1.0 2.6 ]deca-3,8-diene (sulfur:diene ratio=20:1) at 170 v °C in bulk or decalin in the presence of 1,4-diazabicyclo[2.2.2]octane or N,N,N,N-tetramethylethylenediamine in combination with CoCl 2 - 6H 2 O or Cu(acac) 2 occurs at two dienic double bonds to form partially cross-linked copolymers stable up to 200 v °C (DSC/TGA). Preliminary evaluation of the specific discharge capacity of cathodes made using the above copolymers in model lithium button cells gives 670-970 and 300-330 v mA - h - g m 1 in the 1st and 50th cycles, respectively.
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