The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2007
Filed:
May. 09, 2005
Mrinal Thakur, Auburn, AL (US);
Mrinal Thakur, Auburn, AL (US);
Other;
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.