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. 04, 2000
Filed:
Mar. 24, 1998
Applicant:
Inventors:
Toshikazu Hamamoto, Ube, JP;
Atsuo Hitaka, Ube, JP;
Koji Abe, Ube, JP;
Yohsuke Ueno, Ube, JP;
Noriyuki Ohira, Ube, JP;
Masahiko Watanabe, Ube, JP;
Assignee:
Ube Industries, Ltd., Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429200 ; 429330 ; 429331 ; 429332 ; 429333 ;
Abstract
An electrolyte solution for a lithium secondary battery comprises a nonaqueous solvent and a fluorine-containing electrolyte capable of dissociating into lithium ions, wherein the content of HF in the electrolyte solution is less than 30 ppm.