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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 9685660 B1

PDFFull Text
Expired
Date of Patent:
Jun. 20, 2017

Filed:

Sep. 10, 2014

Positive electrode for lithium-ion secondary battery and production process for the same, and lithium-ion secondary battery

Applicant:

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

Inventors:

Hiroki Oshima, Kariya, JP;

Kanae Suzuki, Kariya, JP;

Takeshi Maki, Kariya, JP;

Assignee:

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

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Scott J Chmielecki

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 10/05 (2010.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0404 (2013.01); H01M 4/0416 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 4/623 (2013.01); H01M 10/0525 (2013.01); H01M 10/4235 (2013.01); Y02P 70/54 (2015.11);
Abstract

A positive electrode for lithium-ion secondary battery is provided, the positive electrode being able to endure high-temperature and high-voltage driving modes or operations. At least parts of the surface of positive-electrode active-material particles are covered by a polymer coating layer, and an amino group and phosphoric-acid group are included in the polymer coating layer. Since the polymer coating layer includes a phosphoric-acid-based polymer, capacity declines are inhibited at the time of cycle tests.

Find Patent Forward Citations

Oshima, Hiroki. (2017). Positive electrode for lithium-ion secondary battery and production process for the same, and lithium-ion secondary battery (U.S. Patent No. 9685660). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9685660

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

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