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:
Dec. 25, 2012
Filed:
May. 21, 2008
Applicant:
Susumu Kato, Osaka, JP;
Inventor:
Susumu Kato, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A positive electrode and a negative electrode are accommodated in a bottomed cylindrical battery case with a separator interposed therebetween, and an opening part of the battery case is sealed by means of a gasket. A body part of the battery case has a thickness in the range between 0.1 and 0.17 mm. The positive electrode is made of a material obtained by adding graphite to manganese dioxide. The density of the graphite in the material of the positive electrode is in the range between 0.12 and 0.23 g/cm.