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:
Feb. 10, 2004
Filed:
Apr. 11, 2002
Hitachi Maxell Ltd., Osaka, JP;
Abstract
A flat-shaped nonaqueous electrolyte battery including a sealing plate, a metal container, a gasket interposed between the sealing plate and the metal container, and a negative electrode, a positive electrode and a nonaqueous electrolyte that are sealed by pressing inward an edge portion of an opening of the metal container, the sealing plate also serves as a positive electrode terminal, the metal container also serves as a negative electrode terminal, and a peripheral portion of the negative electrode is arranged between an inner bottom surface of the metal container and the gasket is disclosed. It is preferable that a lithium alloy or an oxide of an element that can be alloyed with lithium is used for the negative electrode, and it is preferable that a ratio of a capacity of the negative electrode with respect to that of the positive electrode is at least 1.2.