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:
Nov. 14, 2017
Filed:
Dec. 06, 2016
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, Aichi, JP;
Yuichi Hirakawa, Kariya, JP;
Manabu Miyoshi, Kariya, JP;
Hideaki Shinoda, Kariya, JP;
Takayuki Kato, Kariya, JP;
Keiichi Hayashi, Kariya, JP;
Kayo Mizuno, Kariya, JP;
Yoshikatsu Kawabata, Kariya, JP;
Megumi Yamamoto, Kariya, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, JP;
Abstract
A negative electrode for lithium-ion secondary battery including a negative electrode that includes a current collector; and a negative-electrode active-material layer formed on a surface of the current collector, and including negative-electrode active-material particles. The negative-electrode active-material particles include an element being capable of sorbing and desorbing lithium ions, and being capable of undergoing an alloying reaction with lithium; or/and an elementary compound being capable of undergoing an alloying reaction with lithium, the negative-electrode active-material particles include particles whose particle diameter is 1 μm or more in an amount of 85% by volume or more thereof when the entirety is taken as 100% by volume, and exhibit a 'D' being 3 μm or more. The negative-electrode active-material layer having a thickness that is 1.4 times or more of a 'D' that said negative-electrode active-material particles exhibit.