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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 10333139 B1

PDFFull Text
Date of Patent:
Jun. 25, 2019

Filed:

Nov. 14, 2014

Negative electrode active material, method for producing same, and electrical storage device

Applicant:

Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, Aichi, JP;

Inventors:

Takeshi Kondo, Kariya, JP;

Tomohiro Niimi, Kariya, JP;

Yusuke Sugiyama, Kariya, JP;

Masataka Nakanishi, Kariya, JP;

Nobuhiro Goda, Kariya, JP;

Assignee:

KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, Aichi, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Alix E Eggerding

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01G 11/34 (2013.01); H01M 4/04 (2006.01); H01M 4/1395 (2010.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01G 11/24 (2013.01); H01G 11/30 (2013.01); H01G 11/86 (2013.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/1393 (2010.01); H01M 10/0525 (2010.01); H01M 4/48 (2010.01); H01M 10/052 (2010.01); H01M 12/00 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01G 11/24 (2013.01); H01G 11/30 (2013.01); H01G 11/34 (2013.01); H01G 11/86 (2013.01); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 4/483 (2013.01); H01M 10/052 (2013.01); H01M 12/005 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); Y02E 60/13 (2013.01); Y02T 10/7022 (2013.01);
Abstract

Provided is a negative electrode active material including complex particles formed of: nano silicon aggregated particles produced by heating a layered polysilane represented by a composition formula of (SiH)and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a composited carbon layer formed from an amorphous carbon and at least covering one portion of the aggregated particles. A mean particle diameter Dof the aggregated particles is within a range of 0.2 μm to 30 μm, and a mean particle diameter Dof the complex particles is within a range of 0.5 μm to 40 μm.

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