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. 17, 2012
Filed:
Jul. 22, 2009
Takanobu Chiga, Kobe, JP;
Hiroyuki Matsumoto, Kobe, JP;
Ryo Mogi, Shibukawa, JP;
Osamu Omae, Kurashiki, JP;
Masafumi Kobayashi, Kurashiki, JP;
Takanobu Chiga, Kobe, JP;
Hiroyuki Matsumoto, Kobe, JP;
Ryo Mogi, Shibukawa, JP;
Osamu Omae, Kurashiki, JP;
Masafumi Kobayashi, Kurashiki, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Kanto Denka Kogyo Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises a non-aqueous solvent and lithium salt as an electrolyte, and wherein the non-aqueous solvent contains chain fluorinated carboxylic acid ester represented by the formula CHCOOCHCHF(wherein x is 2 or 3) and a film forming chemical decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.