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:
Mar. 06, 2012
Filed:
Feb. 26, 2008
Atsushi Kawada, Kitakyushu, JP;
Aya Tashiro, Kitakyushu, JP;
Toshihiro Kumagai, Kitakyushu, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an ionic liquid which is stable over a wide potential range and exhibits a high ionic conductivity. The ionic liquid comprises a cyclic guanidine salt represented by the following formula (1): wherein Rand Reach is independently an alkyl group or an alkoxyalkyl group, X is a methylene group, an oxygen atom, a sulfur atom, or RN; Ris an alkyl group, an alkoxyalkyl group, or an acyl group; l, m, and n each is an integer in the range of 1-6; Yis a monovalent anion such as (RSO)N, RSO, RCOO, BF, PF, NO, (CN)N, (CHO)N, NCS, ROSO, RSOS, and a halogen ion. The ionic liquid is useful for a variety of electrolytes, particularly for electrolytes of electrochemical cells.