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:
Mar. 05, 2002
Filed:
Dec. 27, 1999
Naoya Nakanishi, Tondabayashi, JP;
Kouichi Satoh, Itami, JP;
Kazuyasu Fujiwara, Sumoto, JP;
Toshiyuki Nohma, Hirakata, JP;
Ikuo Yonezu, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A lithium rechargeable battery having a superior battery performance in which manganese, being cheap and occurring in abundance, is used as an element of the positive electrode active material. The lithium rechargeable battery includes a negative electrode and a positive electrode, the negative electrode being made of a material capable or absorbing and releasing lithium, and the positive electrode being made of a lithium-containing metal oxide capable of absorbing and releasing lithium. The lithium-containing metal oxide is represented by a compositional formula Li MN Ni Fe O , where 1≦x≦1.3, 0.05≦y<0.9, 0.05≦z<0.9, 0.1≦y+z≦0.9.