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.:
Date of Patent:
Jun. 18, 2019
Filed:
Mar. 17, 2014
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Takayuki Fukasawa, Yokohama, JP;
Kenji Essaki, Kawasaki, JP;
Tomokazu Morita, Funabashi, JP;
Takashi Kuboki, Ota, JP;
Yasuhiro Goto, Minato, JP;
Assignee:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/38 (2006.01); H01M 10/052 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 4/0471 (2013.01); H01M 2220/30 (2013.01);
Abstract
The active material for a nonaqueous electrolyte secondary battery of the present embodiment includes a core particle and a carbon layer. The core particle is formed of silicon particles having a twinned crystal in part of a surface. The carbon layer coats the core particle.