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.

Date of Patent:
Sep. 22, 2020

Filed:

Sep. 04, 2018
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventors:

Koji Torita, Nagoya, JP;

Akihiro Ochiai, Toyonaka, JP;

Yusuke Fukumoto, Toyonaka, JP;

Harunari Shimamura, Toyonaka, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 10/42 (2006.01); H01M 10/05 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/628 (2013.01); H01M 10/05 (2013.01); H01M 10/4235 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode plate includes a positive electrode composite material layer. The positive electrode composite material layer contains at least a positive electrode active material and a flame retardant. The flame retardant contains phosphorus (P) or sulfur (S). The flame retardant has a thermal decomposition temperature not lower than 80° C. and not higher than 210° C. A value calculated by dividing a porosity (%) of the positive electrode composite material layer by an amount (mass %) of P and S contained in the positive electrode composite material layer is not smaller than 5 and not greater than 5000.


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