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:
May. 12, 2015
Filed:
Sep. 13, 2012
Hidekazu Miyagi, Inashiki-gun, JP;
Ryoichi Kato, Inashiki-gun, JP;
Masakazu Yokomizo, Inashiki-gun, JP;
Hiroyuki Uono, Inashiki-gun, JP;
Hitoshi Matsumoto, Inashiki-gun, JP;
Tomohiro Satou, Inashiki-gun, JP;
Minoru Kotato, Inashiki-gun, JP;
Takayuki Nakajima, Inashiki-gun, JP;
Hitoshi Suzuki, Inashiki-gun, JP;
Hiroyuki Oshima, Inashiki-gun, JP;
Hidekazu Miyagi, Inashiki-gun, JP;
Ryoichi Kato, Inashiki-gun, JP;
Masakazu Yokomizo, Inashiki-gun, JP;
Hiroyuki Uono, Inashiki-gun, JP;
Hitoshi Matsumoto, Inashiki-gun, JP;
Tomohiro Satou, Inashiki-gun, JP;
Minoru Kotato, Inashiki-gun, JP;
Takayuki Nakajima, Inashiki-gun, JP;
Hitoshi Suzuki, Inashiki-gun, JP;
Hiroyuki Oshima, Inashiki-gun, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A lithium secondary battery is provided. The battery comprises: a positive electrode and a negative electrode which each has a specific composition and specific properties; and a nonaqueous electrolyte which contains a cyclic siloxane compound of formula (1), a fluorosilane compound of formula (2), a compound of formula (3), compound having an S—F bond in the molecule, nitric acid salt, nitrous acid salt, monofluorophosphoric acid salt, difluorophosphoric acid salt, acetic acid salt, or propionic acid salt in an amount of 10 ppm or more of the whole nonaqueous electrolyte.