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. 06, 2008
Filed:
Sep. 26, 2003
Masato Iwanaga, Tokushima, JP;
Kazuyasu Fujiwara, Tokushima, JP;
Ryuji Ohshita, Tokushima, JP;
Masayuki Terasaka, Hyogo, JP;
Masatoshi Takahashi, Tokushima, JP;
Masato Iwanaga, Tokushima, JP;
Kazuyasu Fujiwara, Tokushima, JP;
Ryuji Ohshita, Tokushima, JP;
Masayuki Terasaka, Hyogo, JP;
Masatoshi Takahashi, Tokushima, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The present invention provides a non-aqueous electrolyte secondary cell that has good high-temperature cycle characteristics and good high-temperature standing resistance, and that is highly safe enough to prevent overcharge. The non-aqueous electrolyte secondary cell of the invention utilizes a non-aqueous electrolyte that includes a vinylene carbonate derivative, a cyclic sulfite derivative, and both/either of a phenylcycloalkane derivative and/or an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring.