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. 04, 1999
Filed:
Apr. 25, 1997
Applicant:
Inventors:
Naoto Nishimura, Kitakatsuragi-gun, JP;
Takehito Mitate, Yamatotakada, JP;
Tetsuya Yoneda, Nabari, JP;
Kazuo Yamada, Kitakatsuragi-gun, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
4292314 ; 4292318 ;
Abstract
A non-aqueous secondary battery composed of an negative electrode comprising a carbon material capable of conducting absorption-desorption or intercalation-deintercalation of lithium into or from itself, a positive electrode comprising a lithium-containing chalcogenide compound, and a non-aqueous ion conductor, in which the carbon material for the negative electrode is such that combined oxygens on its surface are substantially removed.