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:
Jan. 25, 2005
Filed:
Aug. 01, 2001
Junichi Yamaura, Kobe, JP;
Masaki Hasegawa, Hirakata, JP;
Shuji Tsutsumi, Katano, JP;
Shinji Kasamatsu, Katano, JP;
Junichi Yamaura, Kobe, JP;
Masaki Hasegawa, Hirakata, JP;
Shuji Tsutsumi, Katano, JP;
Shinji Kasamatsu, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
100 parts by weight of a carbon material having irreversible capacity and 20 to 150 parts by weight of a lithium-containing complex nitride represented by the general formula LiMN wherein M is at least one selected from the group consisting of Co, Ni, Mn and Cu, and wherein 0.2≦X≦0.8, are included in a negative electrode thereby to compensate for the irreversible capacity of the carbon material by the above-described nitride. This enables the maximum utilization of large capacity possessed by an amorphous carbon or low crystalline carbon, thereby making it possible to provide a non-aqueous electrolyte secondary battery having high capacity and excellent cycle reversibility.