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. 12, 2013
Filed:
Mar. 10, 2009
Koji Abe, Yamaguchi, JP;
Kazuyuki Kawabe, Yamaguchi, JP;
Koji Abe, Yamaguchi, JP;
Kazuyuki Kawabe, Yamaguchi, JP;
Ube Industries, Ltd., Ube-shi, JP;
Abstract
Disclosed are (1) a nonaqueous electrolytic solution for lithium battery comprising an electrolyte dissolved in a nonaqueous solvent, which contains at least one hydroxy acid derivative compound represented by the formulae (I) and (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and which can improve the low-temperature and high-temperature cycle property thereof (wherein Rrepresents an alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, or an alkynyl group having from 3 to 6 carbon atoms, Rrepresents a sulfonyl group or a formyl group, Rand Reach represent a hydrogen atom or a methyl group); (2) a lithium battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains at least one hydroxy acid derivative compound represented by the above formulae (I) and (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution; and (3) a hydroxy acid derivative compound represented by the following formula (III) or (IV) (wherein Rrepresents an alkenyl group having from 2 to 6 carbon atoms, or an alkynyl group having from 3 to 6 carbon atoms, Rrepresents a sulfonyl group or a formyl group, and Rand Reach represent a hydrogen atom or a methyl group).