Single component sulfur-based cathodes for lithium-ion...

Details Single component sulfur-based cathodes for lithium-ion... Single component sulfur-based cathodes for lithium-ion...

2005-03-22

2005-03-22

Chaney, Carol (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

Reexamination Certificate

active

06869729

ABSTRACT:
The present invention pertains to the selection of cathode materials. The cathode materials of concern are the conducting polymer or backbone and the redox active species or sulfur species. The selection of the materials is based on the characteristics of the materials relating to the other components of the batteries and to each other. The present invention also pertains to the resultant cathode materials, particularly a selected cathode material of a single component sulfur-based conducting polymer with the sulfur species covalently linked to the conducting polymer, and most particularly a thiophene based polymer with covalently linked sulfur species. The conducting polymers have been covalently-derivatized with sulfides and/or sulfide-containing groups as battery cathode materials. The present invention also pertains to a battery employing the selection method and resultant cathode materials.

REFERENCES:
patent: 4472488 (1984-09-01), Maxfield et al.
patent: 5712057 (1998-01-01), Fauteux
patent: 5723230 (1998-03-01), Naoi et al.

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