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:
Oct. 30, 2018
Filed:
Mar. 02, 2016
Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;
Takeo Tsuzuki, Takasaki, JP;
Koji Kano, Takasaki, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
In an embodiment, an electric storage deviceincludes: an electric storage elementhaving a positive electrode and a negative electrode; a non-aqueous electrolytic solution constituted by a non-aqueous solvent primarily containing cyclic ester and cyclic carbonate ester, in which an electrolyte containing lithium salt is dissolved and to which a sulfonate ester derivative whose reduction potential is higher than that of the cyclic ester and cyclic carbonate ester is added; and an outer containerthat stores the electric storage elementand non-aqueous electrolytic solution. The electric storage device can offer both good low-temperature characteristics and good high-temperature reliability.