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:
Aug. 16, 2016
Filed:
Aug. 08, 2013
Sanyo Electric Co., Ltd., Moriguchi-shi, Osaka, JP;
Eiji Okutani, Kasai, JP;
Yoshinori Yokoyama, Itano-gun, JP;
Takayuki Hattori, Minamiawaji, JP;
Yasuhiro Yamauchi, Sumoto, JP;
SANYO Electric Co., Ltd., Daito-shi, JP;
Abstract
A nonaqueous electrolyte secondary battery according to an embodiment of the invention includes: a flat electrode assembly including a positive electrode and a negative electrode; a bottomed prismatic hollow outer can storing the flat electrode assembly and a nonaqueous electrolyte and having an opening portion; and a sealing plate sealing the opening portion of the hollow outer can. The nonaqueous electrolyte contains at least one of a lithium salt having an oxalate complex as an anion and lithium difluorophosphate (LiPFO). The outer surface area of a battery outer body including the hollow outer can and the sealing plate is 350 cmor more. With this configuration, the nonaqueous electrolyte secondary battery has excellent battery characteristics.