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

• US 7,687,128 B2
• Filed: 08/13/2003
• Issued: 03/30/2010
• 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
• Primary Examiner(s): Ruthkosky; Mark
• Assistant Examiner(s): HIGGINS, GERARD T
• Application Number:
  US10/524,592
• Publication Number:
  US 20050286209A1
• Time in Patent Office: 2,421 Days
• Field of Search: 429/211, 429/233, 429/209, 429/246, 29/2, 296/233, 310365-368, 428/43, 428/136, 428/137, 428/195.1, 428/571, 428/572
• US Class Current: 428/43
• 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. A stacked film arrangement comprising:

at least one stamped anode film and at least one stamped cathode film, wherein the stamped anode and cathode films, each have a stamped perforation pattern defining at least one dividing line and predetermining the edges of cut for future separation into individual elements, wherein said at least one dividing line 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, wherein the stamped anode and cathode films are stacked on top one another with interposition of a separator film that electronically separates the stamped anode and cathode films and are superimposed in a staggered arrangement relative to one another such that the webs of the at least one stamped anode film and the webs of the at least one stamped cathode film are not superimposed, the stacked film arrangement forming a compound film.

2. The stacked film arrangement according to claim 1, wherein the stamped perforation patterns of the stamped anode and cathode films are identical and wherein a first one of the stamped anode film and cathode films is arranged relative to a second one of the stamped anode and cathode films in a rotated position rotated by 180°

about a surface axis of the first one of the stamped anode and cathode films.

3. The stacked film arrangement according to claim 1 configured to produce electrochemical or electrochromic components.

4. The stacked film arrangement according to claim 1, wherein the stamped perforation patterns of the stamped anode and cathode films each have, in a first direction, several dividing lines that extend parallel to one another, wherein in the stacked film arrangement a first one of the stamped anode and cathode films is arranged in a mirrored position, mirrored at a mirror plane intersecting said first one of stamped anode and cathode films centrally and perpendicularly to said several dividing lines, respectively, and the webs of said several dividing lines in the mirrored position are not superimposed on webs of a second one of stamped anode and cathode films that has not been mirrored

5. The stacked film arrangement according to claim 1, wherein the stamped perforation pattern of the stamped anode and cathode films each have several dividing lines that extend perpendicularly to one another in a first direction and in a second direction, wherein a first one of the stamped anode and cathode films is arranged in a mirrored position, mirrored at a mirror plane, which mirror plane intersects said first one of the stamped anode and cathode films centrally and perpendicularly to said first direction, and the webs of said several dividing lines that extend in said first direction are not superimposed in the mirrored position on webs of a second one of the stamped anode and cathode films that has not been mirrored.

6. The stacked film arrangement according to claim 1, wherein the stamped perforation patterns of the stamped anode and cathode films each have the webs arranged such that a first one of the stamped anode and cathode films is arranged in a rotated position, rotated by 180°

about a central axis of rotation that is positioned perpendicularly to a surface plane of said first one of the stamped anode and cathode films, and the webs of said first one of the stamped anode and cathode films in the rotated position are not superimposed on the webs of a second one of the stamped anode and cathode films that has not been rotated.

7. The stacked film arrangement according to claim 1, wherein the stamped anode and cathode films are joined to one another.

8. The stacked film arrangement according to claim 1, wherein the stamped anode and cathode films are laminated to one another.