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:
Nov. 13, 2007

Filed:

Aug. 30, 2002
Applicants:

Cristian Fierro, Northville, MI (US);

Michael A. Fetcenko, Rochester, MI (US);

Kwo Young, Troy, MI (US);

Stanford R. Ovshinsky, Bloomfield Hills, MI (US);

Beth Sommers, Clarkston, MI (US);

Craig Harrison, Mancelona, MI (US);

Inventors:

Cristian Fierro, Northville, MI (US);

Michael A. Fetcenko, Rochester, MI (US);

Kwo Young, Troy, MI (US);

Stanford R. Ovshinsky, Bloomfield Hills, MI (US);

Beth Sommers, Clarkston, MI (US);

Craig Harrison, Mancelona, MI (US);

Assignee:

Ovonic Battery Company, Inc., Rochester Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/52 (2006.01);
U.S. Cl.
CPC ...
Abstract

Nickel hydroxide material comprising particles with a microstructure including crystallites of less than 103 Å as measured in the 101 direction by x-ray diffraction. A method of making positive electrode material for use in an alkaline rechargeable electrochemical cell comprising forming a metal ion solution and increasing the pH to precipitate positive electrode material with a crystallite structure of 120 Å or less in the 101 direction.


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