Film and compound films with an embossed pattern, particularly for producing electrochemical components

• US 20050286209A1
• Filed: 08/13/2003
• Published: 12/29/2005
• Est. Priority Date: 08/16/2002
• Status: Active Grant

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Neumann, Gerold, Bonfanti, Francesco, Futscher, Heinz
• Granted Patent: US 7,687,128 B2
• Time in Patent Office: Days
• US Class Current: 361/502
• CPC Class Codes: H01M 10/0436 Small-sized flat cells or batteries for portable equipment
• CPC Class Codes: H01M 4/04 Processes of manufacture in general
• CPC Class Codes: H01M 4/043 involving compressing or compaction
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries
• CPC Class Codes: Y10T 428/15 Sheet, web, or layer weakened to permit separation through thickness
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

A stamped film to be connected to an additional film has a stamped pattern defining at least one dividing line that is interrupted in a regular pattern by webs, wherein the webs each have a width that is, on average, less than an average spacing between two adjacently positioned ones of the webs, respectively. The stamped pattern has, at least in one direction, several dividing lines extending parallel to one another or has several dividing lines extending perpendicularly to one another. When mirroring the stamped film at a mirror plane that intersects the stamped film centrally and perpendicularly to the dividing lines, the webs of the dividing lines will not be superimposed on webs of a stamped film that has not been mirrored when superimposing the mirrored stamped film on the stamped film that has not been mirrored. The stacked films form electrochemical or electrochromic compounds.

Claims

1-11. -11. (canceled)

12. A stamped film configured to be connected to an additional stamped film, wherein the stamped film has a stamped pattern defining at least one dividing line that is interrupted in a regular pattern by webs, wherein the webs each have a width that is, on average, less than an average spacing between two adjacently positioned ones of the webs, respectively.

13. The stamped film according to claim 12, wherein the width of all of the webs, respectively, is less than a spacing of the webs to a neighboring one of the webs, respectively.

14. The stamped film according to claim 12, wherein the stamped pattern has, in at least in one direction, several of the at least one dividing line extending parallel to one another, wherein, upon mirroring the stamped film at a mirror plane that intersects the stamped film centrally and perpendicularly to said dividing lines, the webs of said dividing lines will not be superimposed on webs of a stamped film that has not been mirrored when superimposing the mirrored stamped film on said stamped film that has not been mirrored.

15. The stamped film according to claim 12, wherein the stamped pattern has several of the at least one dividing line extending perpendicularly to one another, wherein the webs of first dividing line(s) extending in a first direction, upon mirroring of the stamped film at a mirror plane that intersects the stamped film centrally and perpendicularly to said first direction, will not be superimposed on webs of a stamped film that has not been mirrored when superimposing the mirrored stamped film on said stamped film that has not been mirrored.

16. The stamped film according to claim 12, wherein the webs are arranged such that upon rotation by 180°

about a central axis of rotation that is positioned perpendicularly to a surface plane of the stamped film will not be superimposed on webs of a stamped film that has not been rotated when superimposing the rotated stamped film on said stamped film that has not been rotated.

17. The stamped film according to claim 12, comprising parts making the stamped film suitable for configuring an electrochemical or electrochromic component of film construction.

18. The stamped film according to claim 17, wherein the stamped film is a cathode film or an anode film.

19. The stamped film according to claim 12, comprising openings suitable as positioning holes.

20. A film compound comprising at least two stamped films according to claim 12, wherein the at least two stamped films are superimposed in a staggered arrangement relative to one another such that the webs of a first one of the at least two stamped films and the webs of a second one of the at least two stamped films are not superimposed.

21. The film compound according to claim 20, wherein the stamped patterns of the at least two stamped films are identical and wherein the second one of the at least two stamped films is arranged relative to the first one of the at least two stamped films so as to be rotated by 180°

about a surface axis of the first one of the at least two stamped films.

22. The film compound according to claim 20 configured to produce electrochemical or electrochromic components.