Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2007-12-25
2007-12-25
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S220000, C429S229000, C429S347000
Reexamination Certificate
active
11124992
ABSTRACT:
Rechargeable batteries have been fabricated using doped nonconjugated conductive polymers as the cathode and various metals such as aluminum, copper and zinc as the anode. A nonconjugated conductive polymer is a polymer with at least one double bond in the repeat with the double bond number fraction of less than ½. The dopants include electron acceptors such as iodine. Various electrolytes including potassium iodide dissolved in water can be used. A paste formed by dissolving potassium iodide and poly(vinyl alcohol) in water has been used to demonstrate batteries in the shape of large-area sheets (11 cm×11 cm×5 mm). An open circuit voltage of 1.25 volts and a capacity more than 5 mAh have been observed. The batteries are rechargeable using an external power supply.
REFERENCES:
patent: 6586810 (2003-07-01), Thakur
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Thakur, M., A Class of Conducting Polymers Having Nonconjugated Backbones, Macromolecules 1988, 21, 661-664.
Investigation of poly(arylenevinylene)s, 40a; Manfred Helbig, Hans-Heinrich Horhold; Friedich-Schiller-Universitat Jena, Institut fur Organische Chemie und Makromolekulare Chemie, Humboldstr. 10, 0-6900 Jena, Germany; (Received: Oct. 5, 1992) pp. 1607-1618.
Lightweight Rechargeable Storage Batteries Using Polyacetylene, (CH) as the Cathode-Active Material; Paul J. Nigrey, David MacInnes, Jr., David P. Nairns, and Alan G. MacDiarmid; Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104; and Alan J. Heeger Department of Physics, University of Pennsylvania 19104; pp. 1651-1654.
A new polymer/polymer rechargeable battery; polyaniline/LiCIO4(MeCN)/poly-1-naphthol; H. H. Rehan; Chemistry Department, College of Education for girls, Malaz, Riyadh 11417, P.O. Box 27104, Saudi Arabia; Received May 27, 2002; received in revised form Sep. 4, 2002; accepted Sep. 8, 2002; pp. 57-61.
Parsons Thomas H.
Ryan Patrick Joseph
Thomas Kayden Horstemeyer & Risley LLP
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