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. 09, 2002
Filed:
Jun. 20, 2000
Atsushi Yanai, Yono, JP;
Katsunori Yanagida, Itami, JP;
Takeshi Maeda, Tsukuba, JP;
Atsuhiro Funahashi, Suita, JP;
Toshiyuki Nohma, Hirakata, JP;
Ikuo Yonezu, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
The present invention provides a positive electrode of a nonaqueous electrolyte secondary cell which is prepared using an active substance containing a composition of LiNi Co M O (a+b+c=1;0≦c≦0.5) wherein M is at least one metal selected from among Mn, Fe, Zn, Ti, Cr, Mg, Al, Cu, or Ga and a composition of AlX(SO ) wherein X is at least one material selected from among Na, Rb, Cs, or NH . This enables the secondary cell to diminish the reduction of a cell capacity when allowed to store and thus the storage characteristics of the secondary cell is improved.