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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.:

US 6811923 B1

PDFFull Text
Date of Patent:
Nov. 02, 2004

Filed:

Feb. 20, 2002

Active material for anode of secondary cell and method for production thereof and non-aqueous electrolyte secondary cell, and recycled electronic functional material and method for recycling electronic functional material

Applicant:
Inventors:

Ryo Sakai, Yokohama, JP;

Yasuhiro Shirakawa, Yokohama, JP;

Kotaro Iyasu, Fuchu, JP;

Nobukazu Suzuki, Tokyo, JP;

Hisayasu Mitsui, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Attorney:

Mark R. Shanks

Primary Examiner:

Hoa Van Le

Int. Cl.
CPC ...
H01M 4/48 ;
U.S. Cl.
CPC ...
H01M 4/48 ;
Abstract

Positive electrode active material for nonaqueous electrolytic solution secondary batteries is made of a metal oxide. A content of coarse particles, of which particles sizes are 600% or more with respect to an average particle size of the metal oxide, is 1% or less by volume, and a content of high density particles, of which densities are 150% or more with respect to an average density of the metal oxide, is 1000 ppm or less. By using the positive electrode active material, battery characteristics and a manufacturing yield may be improved.

Find Patent Forward Citations

Sakai, Ryo. (2004). Active material for anode of secondary cell and method for production thereof and non-aqueous electrolyte secondary cell, and recycled electronic functional material and method for recycling electronic functional material (U.S. Patent No. 6811923). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6811923

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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