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Dimercaptan-polyaniline cathodes for lithium batteries. Addition of a polypyrrole derivative for rapid charging

Technical Report ·
OSTI ID:220335
A polymer composite cathode prepared from polyaniline and 2,5-dimercapto-1, 3,4-thiadiazole shows high gravimetric energy density when it is coupled with a lithium anode. However, charging and discharging currents should be 0.05 mA/sq cm or less, otherwise the cycle life is shortened. Addition of a polypyrrole derivative, poly(3-butylcarboxylate- 4-methylpyrrole), to the composite cathode enabled rapid charging at 0.2 mA/sq cm without undue deterioration of the energy density, but it was not effective for rapid discharging. This effect of the polypyrrole derivative may be ascribale to the electrical conductivity in its oxidized state.
Research Organization:
Wyoming Univ., Laramie, WY (United States). Dept. of Chemistry
OSTI ID:
220335
Report Number(s):
AD-A--301985/8/XAB; CNN: Contract N00014-90-J-1167
Country of Publication:
United States
Language:
English

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