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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 9412999 B1

PDFFull Text
Date of Patent:
Aug. 09, 2016

Filed:

Oct. 08, 2015

Potato-shaped graphite particles with low impurity rate at the surface, method for preparing the same

Applicant:

Hydro Quebec, Montreal, Quebec, CA;

Inventors:

Abdelbast Guerfi, Brossard, CA;

Fernand Brochu, Longueuil, CA;

Kimio Kinoshita, Cupertino, CA (US);

Karim Zaghib, Longueuil, CA;

Assignee:

HYDRO-QUEBEC, Montreal, Quebec, CA;

Attorney:

Buchanan Ingersoll & Rooney P.C.

Primary Examiner:

Daniel C McCracken

Int. Cl.
CPC ...
C01B 31/04 (2006.01); H01M 4/133 (2010.01); B01J 20/32 (2006.01); H01M 4/1393 (2010.01); H01M 4/583 (2010.01); H01M 4/96 (2006.01); H01M 10/0525 (2010.01); G01N 27/407 (2006.01); H01M 4/02 (2006.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
H01M 4/133 (2013.01); B01J 20/3204 (2013.01); B01J 20/3236 (2013.01); B01J 20/3293 (2013.01); C01B 31/04 (2013.01); G01N 27/4075 (2013.01); H01M 4/1393 (2013.01); H01M 4/583 (2013.01); H01M 4/96 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); H01M 2004/8684 (2013.01);
Abstract

Modified graphite particles obtained from graphite or based on graphite, the said particles having impurities in their internal structure and having on the surface a low, even nil, rate of an impurity or several impurities. In addition, these particles have at least one of the following characteristics: These particles can be used for fuel cells, electrochemical generators, or as moisture absorbers and/or oxygen absorbers and they have important electrochemical properties. The electrochemical cells and batteries thus obtained are stable and safe.

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