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. 14, 2017
Filed:
Apr. 09, 2010
Yui Senda, Kanagawa, JP;
Kenta Yamamoto, Kanagawa, JP;
Yuri Nakayama, Kanagawa, JP;
Reina Ito, Kanagawa, JP;
Yui Senda, Kanagawa, JP;
Kenta Yamamoto, Kanagawa, JP;
Yuri Nakayama, Kanagawa, JP;
Reina Ito, Kanagawa, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A secondary battery capable of safely improving a battery performance is provided. An electrolyte with which a separatoris impregnated contains an alkyl sulfone and a low-polar solvent (a solvent having a relative permittivity of 20 or less) together with an aluminum salt. The alkyl sulfone facilitates the redox reaction of aluminum, and further reduces the reactivity of the electrolyte. Additionally, the low-polar solvent suppresses the block of the redox reaction of aluminum. In charge and discharge, it becomes easy to electrochemically efficiently precipitate and dissolve aluminum, and further to inhibit the corrosion of a metallic exterior package member or the like.