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:
Oct. 02, 2007
Filed:
Mar. 15, 2004
Konrad Holl, Aalen-Dewangen, DE;
Alfons Joas, Tannhausen, DE;
Horst Wagner, Rosenberg, DE;
Kemal Akca, Ellwangen, DE;
Arno Perner, Ellwangen, DE;
Dejan Ilic, Ellwangen, DE;
Konrad Holl, Aalen-Dewangen, DE;
Alfons Joas, Tannhausen, DE;
Horst Wagner, Rosenberg, DE;
Kemal Akca, Ellwangen, DE;
Arno Perner, Ellwangen, DE;
Dejan Ilic, Ellwangen, DE;
Varta Microbattery GmbH, , DE;
Abstract
An electrochemical element in the form of a button cell having at least one lithium-intercalating electrode, wherein the cell cover or the cell cup has an opening which is closed in a sealed manner during the formation process. Once the formation process has been completed, it is opened briefly for gas to escape from the cell, and is then closed in a gastight manner. The cell cover and the cell cup are composed in particular of metal. The opening can be closed by a metal or metal/plastic composite sheet, which is adhesively bonded or welded to the cell cover or to the cell cup.