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1. WO2002025754 - RIB SPACING WITH REGISTRATION POINT

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[ EN ]

CLAIMS

1. An electrode for use in an electrochemical cell comprising:
- a bipolar electrode plate having a first side and a second side; and
> - at least one non-conducting spacing member affixed to at least one of the first or second sides of the bipolar electrode plate.

2. The electrode of claim 1 comprising at least two non-conducting non-intersecting spacing members affixed to at least one of the first or second sides of the bipolar

3 electrode plate.

3. The electrode of claim 2, wherein the non-conducting non-intersecting spacing members are substantially parallel to one another.

5 4. The electrode of claim 1 , wherein the non-conducting spacing member has a linear configuration.

5. The electrode of claim 4, wherein the non-conducting spacing member has a sinusoidal configuration.

6. The electrode of claim 1 , wherein at least two non-conducting non-intersecting spacing members are located on both the first and second sides of the bipolar
electrode.

7. The electrode of claim 6, wherein the at least two non-conducting non-intersecting spacing members on the first side are not equal in height to the at least two non-conducting non-intersecting spacing members on the second side.

8. The electrode of claim 6, wherein the non-conducting non-intersecting spacing members on the first and second sides have substantially the same dimensions.

9. The electrode of claim 2, wherein at least one spacing member includes a visual registration indicator.

10. The electrode of claim 9, wherein the visual registration indicator comprises a protrusion on the spacing member.

11. The electrode of claim 1 , wherein the non-conducting spacing member further comprises means for enhancing alignment.

12. The electrode of claim 11 , wherein the means for enhancing alignment comprises a non-conducting spacing member having a varying transverse cross-section.

13. The electrode of claim 1 , wherein the first side is an anode and the second side is a cathode.

14. The electrode of claim 1 , wherein the bipolar plate comprises a carbon plastic sheet, an active material sheet applied thereon, and a non-conductive border surrounding the perimeter of the carbon plastic and active material sheets.

15. The electrode of claim 14 further comprising means for enhancing metal plating.

16. The electrode of claim 15, wherein the means for enhancing plating comprises recesses in at least one side of carbon plastic sheet.

17. The electrode of claim 16, wherein the carbon plastic sheet comprises recesses on both of its sides.

18. The electrode of claim 15, wherein the configuration of the recesses is selected from a group consisting of dimples, grooves, nodules, or textured surface.

19. An electrochemical cell comprising:
- at least two adjacent bipolar electrode plates,
-the first bipolar electrode plate comprised of an anodic face and a cathodic face, and at least two non-conductive non-intersecting spacing members on each face, and
- the second bipolar electrode plate comprised of an anodic face and a cathodic face, and at least two non-conductive non-intersecting spacing members on each face, and wherein the at least two spacing members on opposing faces of the adjacent bipolar electrode plates are in substantial alignment with one another.

20. The electrochemical cell of claim 19, wherein the non-conducting non- intersecting spacing members are substantially parallel to one another.

21. The electrochemical cell of claim 20, wherein the spacing members are linearly 5 configured .

22. The electrochemical cell of claim 20, wherein the spacing members are
sinusoidally configured.

0 23. The electrochemical cell of claim 20, wherein at least one of the spacing
members on each bipolar electrode plate is further comprised of a visual registration indicator.

24. The electrochemical cell of claim 23, wherein the visual registration indicator 5 comprises a protrusion on the spacing member.

25. The electrochemical cell of claim 19, wherein the non-conducting non- intersecting spacing members further comprise means for enhancing alignment.

O 26. The electrochemical cell of claim 25, wherein the means for enhancing alignment comprises a non-conducting spacing member having a varying transverse cross- section.

27. The electrochemical cell of claim 19, wherein the bipolar plates further comprise means for enhancing metal plating.

28. The electrochemical cell of claim 27, wherein the means for enhancing plating comprises recesses on the anodic face.

29. A method for aligning spacing members on adjacent bipolar electrode plates comprising the steps of:
- producing bipolar electrode plates having at least two non-conducting non-intersecting spacing members on both sides, wherein at least one spacing member on at least one side includes a visual registration point; and
- placing the bipolar electrode plates in an alignment fixture so that the visual registration points on each plate are positioned at a designated location of the alignment fixture.