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. 28, 2017
Filed:
Nov. 19, 2013
Sony Corporation, Tokyo, JP;
Akira Yamaguchi, Fukushima, JP;
Kunihiko Hayashi, Kanagawa, JP;
Tadahiko Kubota, Kanagawa, JP;
Hiroyuki Suzuki, Chiba, JP;
Akira Ichihashi, Fukushima, JP;
Yuzuru Fukushima, Miyagi, JP;
Hironori Sato, Aichi, JP;
Masaki Kuratsuka, Fukushima, JP;
Hideto Watanabe, Fukushima, JP;
Kimio Tajima, Fukushima, JP;
Masahiro Miyamoto, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.