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. 17, 2015
Filed:
Aug. 02, 2011
Kuniaki Okamoto, Tokorozawa, JP;
Motoshige Sumino, Fujimino, JP;
Tsutomu Watahiki, Kawagoe, JP;
Kouki Ohkubo, Niiza, JP;
Tatsuko Ikeda, Shiki, JP;
Kuniaki Okamoto, Tokorozawa, JP;
Motoshige Sumino, Fujimino, JP;
Tsutomu Watahiki, Kawagoe, JP;
Kouki Ohkubo, Niiza, JP;
Tatsuko Ikeda, Shiki, JP;
Wako Pure Chemical Industries, Ltd., Osaka, JP;
Abstract
The present invention provides a non-aqueous electrolytic solution including a methylenebissulfonate derivative and improving initial irreversible capacity and other characteristics of a battery such as cycle characteristics, electric capacity, and storage characteristics; a method for producing thereof; and a battery using the electrolytic solution. The non-aqueous electrolytic solution includes: (1) a non-aqueous solvent comprising a cyclic carbonate ester, a straight chained carbonate ester, and/or a cyclic carboxylic acid ester, (2) a lithium salt which may be dissolved in the non-aqueous solvent, as an electrolyte salt, and (3) a methylenebissulfonate derivative of formula [I]: The method includes steps of dissolving a lithium salt in a non-aqueous solvent, and then dissolving the methylenebissulfonate derivative. The non-aqueous electrolytic solution battery includes (i) the non-aqueous electrolytic solution above, (ii) a negative electrode, (iii) a positive electrode, and (iv) a separator.