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:
May. 10, 2016
Filed:
Jul. 29, 2011
Koji Takahata, Toyota, JP;
Machiko Abe, Okazaki, JP;
Koji Takahata, Toyota, JP;
Machiko Abe, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A lithium ion secondary batteryA has negative electrode active material particlesA which include graphite particles that are at least partially covered by an amorphous carbon film. The negative electrode, active material particlesA have a TG weight-loss-on-heating onset temperature Twhich satisfies the condition 500° C.≦T≦615° C. and a micro-Raman G-band half-width Gh which satisfies the condition 20≦Gh≦28. This configuration makes it possible to obtain a lithium ion secondary batteryA in which the reaction resistance in a low-temperature environment can be kept low.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile