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.

Date of Patent:
Apr. 18, 2006

Filed:

May. 01, 2001
Applicants:

Shizuo Ogura, Charlotte, NC (US);

Hidehisa Mokudai, Kawasaki, JP;

Makoto Murata, Tsurugashima, JP;

Barrie Linton Davies, Waxhaw, NC (US);

Inventors:

Shizuo Ogura, Charlotte, NC (US);

Hidehisa Mokudai, Kawasaki, JP;

Makoto Murata, Tsurugashima, JP;

Barrie Linton Davies, Waxhaw, NC (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2006.01); H01M 4/60 (2006.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electrode includes an electrically conductive matrix containing a disulfide group, wherein an S—S bond of the disulfide group is cleaved by electrochemical reduction and reformed by electrochemical oxidation. A plurality of carbon nanotubes are substantially disentangled and dispersed in the electrically conductive matrix. The electrode can be used as a cathode of a lithium battery. A method for producing disentangled carbon nanotubes includes the steps of: adding a plurality of aggregates of carbon nanotubes to a liquid; and providing sheer force (e.g. passing the liquid through a narrow gap at a high speed) onto the liquid for disentangling the aggregates of carbon nanotubes therein.


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