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:
Jan. 19, 2016
Filed:
Jan. 22, 2009
Meiten Koh, Settsu, JP;
Hideo Sakata, Settus, JP;
Hitomi Nakazawa, Settsu, JP;
Akiyoshi Yamauchi, Settsu, JP;
Akinori Tani, Settsu, JP;
Meiten Koh, Settsu, JP;
Hideo Sakata, Settus, JP;
Hitomi Nakazawa, Settsu, JP;
Akiyoshi Yamauchi, Settsu, JP;
Akinori Tani, Settsu, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A solvent for non-aqueous electrolytic solution of lithium secondary battery including a non-fluorine-containing cyclic carbonate (I), a non-fluorine-containing chain carbonate (II) and 1,2-dialkyl-1,2-difluoroethylene carbonate (III). When the total amount of (I), (II) and (III) is taken as 100% by volume, the non-fluorine-containing cyclic carbonate (I) is contained in an amount of 10 to 50% by volume, the non-fluorine-containing chain carbonate (II) is contained in an amount of 49.9 to 89.9% by volume and the 1,2-dialkyl-1,2-difluoroethylene carbonate (III) is contained in an amount of not less than 0.1% by volume and less than 30% by volume. A non-aqueous electrolytic solution including the above-mentioned solvent and a lithium secondary battery using the non-aqueous electrolytic solution are also disclosed.