logo

For the Inventor, By the Inventor

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 10559846 B1

PDFFull Text
Date of Patent:
Feb. 11, 2020

Filed:

Apr. 23, 2018

Negative-electrode active material for non-aqueous secondary battery and non-aqueous secondary battery

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Takayuki Nakatsutsumi, Osaka, JP;

Akira Kano, Osaka, JP;

Junko Matsushita, Osaka, JP;

Nobuhiko Hojo, Tokyo, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Scott J Chmielecki

Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/133 (2010.01); H01M 2/20 (2006.01); H01M 4/583 (2010.01); H01M 4/134 (2010.01); H01M 4/66 (2006.01); H01M 4/38 (2006.01); C01B 32/21 (2017.01); H01M 4/587 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); C01B 32/205 (2017.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); C01B 32/205 (2017.08); C01B 32/21 (2017.08); H01M 2/204 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/381 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/5835 (2013.01); H01M 4/62 (2013.01); H01M 4/662 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

A negative-electrode active material comprises a graphite including at least boron and fluorine. The fluorine is disposed at least on a surface of the graphite. A ratio R satisfies 0.5≤R≤1, where R=S/S, and Sdenotes a total peak area of a boronspectrum of the graphite obtained by X-ray photoelectron spectroscopy, and Sdenotes a peak area of all spectra each having a peak in a binding energy range of not less than 184.0 eV and not more than 188.5 eV in the boronspectrum.

Find Patent Forward Citations

Quick Actions:

Nakatsutsumi, Takayuki. (2020). Negative-electrode active material for non-aqueous secondary battery and non-aqueous secondary battery (U.S. Patent No. 10559846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10559846

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

Loading…