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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 10446838 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Aug. 27, 2014

Negative electrode for nonaqueous secondary battery and nonaqueous secondary battery, negative electrode active material and method for producing same, complex including nano silicon, carbon layer, and cationic polymer layer, and method for producing complex formed of nano silicon and carbon layer

Applicant:

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

Inventors:

Takeshi Kondo, Kariya, JP;

Yusuke Sugiyama, Kariya, JP;

Takashi Mohri, Kariya, JP;

Hiroki Oshima, Kariya, JP;

Tomohiro Niimi, Kariya, JP;

Mutsumi Takahashi, Kariya, JP;

Nobuhiro Goda, Kariya, JP;

Takahiro Sugioka, Kariya, JP;

Yuta Kawamoto, Kariya, JP;

Assignee:

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

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Stewart A Fraser

Assistant Examiner:

Rachel L Zhang

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/133 (2010.01); H01M 4/66 (2006.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 4/587 (2010.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 10/0525 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01);
Abstract

Cycle characteristics of a nonaqueous secondary battery are to be improved. An active material including: a first active material that contains a nano silicon produced by heating a layered polysilane represented by a composition formula (SiH)and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a second active material that contains a graphite, is used in a negative electrode. With this, expansion and contraction due to stress during charging and discharging can be mitigated, and thereby cycle characteristics improve.

Find Patent Forward Citations

Kondo, Takeshi. (2019). Negative electrode for nonaqueous secondary battery and nonaqueous secondary battery, negative electrode active material and method for producing same, complex including nano silicon, carbon layer, and cationic polymer layer, and method for producing complex formed of nano silicon and carbon layer (U.S. Patent No. 10446838). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10446838

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

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