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:
Apr. 20, 2010
Filed:
Nov. 02, 2004
Tetsuo Nishida, Izumiotsu, JP;
Megumi Tomisaki, Izumiotsu, JP;
Kazutaka Hirano, Izumiotsu, JP;
Akihiro Nabeshima, Tokushima, JP;
Hiroaki Tokuda, Tokushima, JP;
Tetsuo Nishida, Izumiotsu, JP;
Megumi Tomisaki, Izumiotsu, JP;
Kazutaka Hirano, Izumiotsu, JP;
Akihiro Nabeshima, Tokushima, JP;
Hiroaki Tokuda, Tokushima, JP;
Otsuka Chemical Co., Ltd., Osaka, JP;
Stella Chemifa Corporation, Osaka, JP;
Abstract
An electrolytic solution for use in nonaqueous electrolytic lithium secondary cells which contains a room temperature molten salt, i.e., an aliphatic quaternary ammonium salt of the formula (1), an organic solvent and a lithium salt of the formula (2), the electrolytic solution being characterized in that the organic solvent contains vinylene carbonate in an amount of 1 to 5 wt. % based on the electrolytic solution, and a lithium secondary cell using the electrolytic solution wherein Rto Rare each a chain hydrocarbon having 1 to 4 carbon atoms, Ris methoxymethyl, ethoxymethyl, propoxymethyl or isopropoxymethyl, and Xand Xare each a fluorine-containing anion.