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:
Aug. 23, 2016
Filed:
Aug. 25, 2011
Masahiro Suguro, Tokyo, JP;
Daisuke Kawasaki, Tokyo, JP;
Midori Shimura, Tokyo, JP;
Kazuaki Matsumoto, Tokyo, JP;
Yoko Hashizume, Tokyo, JP;
Masahiro Suguro, Tokyo, JP;
Daisuke Kawasaki, Tokyo, JP;
Midori Shimura, Tokyo, JP;
Kazuaki Matsumoto, Tokyo, JP;
Yoko Hashizume, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
The object is to provide a secondary battery with higher performance, and especially to provide a secondary battery having low impedance. An exemplary embodiment of the invention is a secondary battery, comprising an electrode assembly in which a positive electrode and a negative electrode are oppositely disposed, an electrolyte liquid, and a package which encloses the electrode assembly and the electrolyte liquid inside; wherein the negative electrode is formed by binding a negative electrode active substance to a negative electrode collector with a negative electrode binder; and wherein the electrolyte liquid comprises a fluorine-containing cyclic ether compound.