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 lithium-ion secondary battery including a negative electrode including negative-electrode active-material particles including an element being capable of sorbing and desorbing lithium ions, and being capable of alloying with lithium; or/and an elementary compound including an element that is capable of alloying with lithium; a positive electrode including a positive-electrode active material that enables Li ions to be sorbed therein and desorbed therefrom; and an electrolytic solution made by dissolving an electrolyte in a solvent. 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 of said negative-electrode active-material particles, which are included in said negative electrode, is taken as 100% by volume, and the negative-electrode active-material particles exhibit a 'D' being 3 μm or more. The solvent in the electrolytic solution includes a fluorinated ethylene carbonate.