Patent · US Active

Button cells and method for producing same

US9153835B2 · kind B2 · utility

3Cited by

7References

13Claims

0Family size

Assignee

VARTA MICROBATTERY GMBH · DE

Inventors

Eduard Pytlik · Ellwangen, DE
Jürgen Lindner · Worms, DE
Ulrich Barenthin · Ellwangen, DE
Winfried Gaugler · Ellwangen, DE

Key dates

Filing date	Feb 9, 2010
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Oct 26, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4911
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A button cell includes a housing cup and a housing top separated from one another by an electrically insulating seal and which form a housing with a flat bottom area and a flat top area parallel to it and an electrode-separator assembly within the housing including at least one positive and at least one negative electrode in the form of flat layers and connected to one another by at least one flat separator, wherein the electrode layers are aligned essentially at right angles to the flat bottom and top areas and the button cell is closed without being beaded over.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.