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:
Aug. 11, 1998
Filed:
Mar. 03, 1997
Takehito Mitate, Yamatotakada, JP;
Motoaki Nishijima, Gose, JP;
Yoshihiro Tsukuda, Osaka, JP;
Kazuo Yamada, Kitakatsuragi-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A nonaqueous secondary battery is provided, which comprises a positive electrode, a negative electrode and a nonaqueous ion conductor, the negative electrode containing a lithium-containing substance or a lithium insertable and releasable substance as a positive electrode active material, the positive electrode containing a lithium nickelate compound as a positive electrode substance, wherein the lithium nickelate compound has a layered rocksalt crystalline structure belonging to Space Group R-3m and the ratio of a 3a- and 3b-site occupation rate of lithium atoms to a 3a- and 3b-site occupation rate of nickel atoms in the crystal lattice thereof is 0.85 to 1.15.