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. 31, 1994
Filed:
Jul. 15, 1992
Applicant:
Inventors:
Kazuya Kuriyama, Takatsuki, JP;
Aya Nishino, Takatsuki, JP;
Assignee:
Yuasa Battery Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H07M / ;
U.S. Cl.
CPC ...
429197 ; 429198 ;
Abstract
This invention relates to a lithium secondary battery, in which a nonaqueous solvent is used for an electrolyte and a carbonaceous material is used for a negative active material; and especially relates to the electrolyte. Namely, the electrolyte includes one or more kinds of tertiary amines, and the tertiary amines include one or more substituents having two or more numbers of carbon. Further, the electrolyte includes a cyclic ester and includes a solvent having a reduction potential higher than that of the cyclic ester.