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:
Jan. 14, 2014
Filed:
Jun. 30, 2009
Hiroyuki Yamaguchi, Fukushima, JP;
Shunsuke Saito, Fukushima, JP;
Toru Odani, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Hiroyuki Yamaguchi, Fukushima, JP;
Shunsuke Saito, Fukushima, JP;
Toru Odani, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A secondary battery capable of improving battery characteristics is provided. The secondary battery includes a cathodecontaining a cathode active material capable of inserting and extracting an electrode reactant, an anodecontaining an anode active material capable of inserting and extracting the electrode reactant, and an electrolyte containing a solvent and an electrolyte salt. At least one of the cathode, the anode, and the electrolyte contains a radical scavenger compound. The radical scavenger compound is a compound in which a group having a radical scavenger function exists as a matrix, to which one or more carboxylic metal bases or one or more sulfonic metal bases are introduced. Chemical stability of the cathode, the anode, or the electrolyte containing the radical scavenger compound is improved. Thus, at the time of charge and discharge, decomposition reaction of the electrolytic solution is easily inhibited.