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:
Jul. 01, 2014
Filed:
Apr. 27, 2011
Jinbao Zhao, Ibaraki, JP;
Norio Iwayasu, Hitachinaka, JP;
Yuuki Okuda, Hitachi, JP;
Hidetoshi Honbo, Hitachinaka, JP;
Jinbao Zhao, Ibaraki, JP;
Norio Iwayasu, Hitachinaka, JP;
Yuuki Okuda, Hitachi, JP;
Hidetoshi Honbo, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A nonaqueous electrolytic solution which may suppress the overcharge of a battery and a nonaqueous electrolyte secondary battery using the solution are provided. The overcharge of the battery is suppressed by undergoing the electrolytic polymerization in the solution when the battery is overcharged, and simultaneously more effectively suppressed by increasing the internal resistance of the battery. The nonaqueous electrolytic solution comprises a polymer which undergoes the electrolytic polymerization in the range of 4.3V or more to 5.5V or less at the lithium metal standard voltage, having a repeating unit represented by the formula (1), an electrolytic salt and a nonaqueous solvent.