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:
Apr. 11, 2006
Filed:
Jan. 28, 2002
Atsushi Ueda, Osaka, JP;
Kazuya Iwamoto, Sakai, JP;
Takafumi Oura, Hirakata, JP;
Hiroshi Yoshizawa, Hirakata, JP;
Masaki Deguchi, Neyagawa, JP;
Takaharu Morikawa, Osaka, JP;
Atsushi Ueda, Osaka, JP;
Kazuya Iwamoto, Sakai, JP;
Takafumi Oura, Hirakata, JP;
Hiroshi Yoshizawa, Hirakata, JP;
Masaki Deguchi, Neyagawa, JP;
Takaharu Morikawa, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In an electrolyte of a non-aqueous electrolyte secondary battery using a cyclic carboxylic-acid ester exerting high conductivity under a low temperature condition, for suppressing reductive decomposition of the cyclic carboxylic acid ester, a cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond is contained, and for suppressing excessive polymerization reaction of the cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond, a cyclic carbonic acid ester having no carbon-carbon unsaturated bond is further contained.