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:
Sep. 20, 2016

Filed:

Jun. 22, 2015
Applicant:

Asahi Glass Company, Limited, Chiyoda-ku, JP;

Inventors:

Tomohiro Sakai, Chiyoda-ku, JP;

Tsubasa Takasugi, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); C01G 53/50 (2013.01); H01M 4/364 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2002/74 (2013.01); C01P 2002/76 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 4/621 (2013.01); H01M 4/624 (2013.01); H01M 2004/028 (2013.01);
Abstract

A cathode active material comprising secondary particles having a plurality of primary particles of a lithium-containing composite oxide agglomerated, the lithium-containing composite oxide being represented by LiNiCoMnMO(x: 1.1 to 1.7, a: 0.15 to 0.5, b: 0 to 0.33, c: 0.33 to 0.85, M: another metal element, d: 0 to 0.05, a+b+c+d=1, and y: the number of moles of oxygen atom (O) required to satisfy the valences of the metal elements), and I/Iin an X-ray diffraction pattern being from 0.02 to 0.3, wherein the porosity in a cross section of the secondary particles is from 5 to 20%, and the percentage of the maximum void in a cross section of the secondary particles is from 0.1 to 10%.


Find Patent Forward Citations

Quick Actions:

Sakai, Tomohiro. (2016). Cathode active material, positive electrode for lithium ion secondary battery, and lithium ion secondary battery (U.S. Patent No. 9450228). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9450228

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

Loading…