Claims
- 1. An electrochemical cell, which comprises:
a) an anode; b) a cathode; c) an electrolyte activating the anode in electrochemical association with the cathode; and d) a casing housing the anode and the cathode, wherein the casing comprises:
a first portion having a first surrounding side wall extending to and meeting with a generally planar first major face wall; a second portion having a second surrounding side wall extending to and meeting with a generally planar second major face wall; wherein the first portion and the second portion of the casing are mated to each other with the first surrounding side wall sealed to the second surrounding side wall to house the anode cathode and the electrolyte contained therein.
- 2. The electrochemical cell of claim 1 wherein the first surrounding side wall is angled with respect to the first major face wall and the second surrounding side wall is angled with respect to the second major face wall.
- 3. The electrochemical cell of claim 1 wherein at least one recess is formed in at least one of the planar first and second major face walls.
- 4. The electrochemical cell of claim 1 wherein the at least one recess comprises a recess wall extending to and meeting with a surrounding side wall which is at an obtuse angle or perpendicular to a plane of the at least one of the planar first and second major face walls.
- 5. The electrochemical cell of claim 1 wherein the at least one recess comprises a recess wall extending to and meeting with a surrounding side wall which is partly formed by one of the first and the second surrounding side walls of the respective first and second portions.
- 6. The electrochemical cell of claim 1 wherein the planar first and second major face walls of the first and second portions of the casing are parallel to each other with the first portion and the second portion of the casing mated to each other.
- 7. The electrochemical cell of claim 1 wherein the planar first major face wall and second planar major face wall of the respective first and second portions of the casing are angled with respect to each other.
- 8. The electrochemical cell of claim 1 as either a primary cell or a secondary cell.
- 9. The electrochemical cell of claim 1 wherein the first and second portions of the casing are of a metal material.
- 10. The electrochemical cell of claim 1 wherein there is at least one recess in each of the first and second portions of the casing.
- 11. An electrochemical cell according to claim 1 further comprising a seam for welding formed by positioning the side wall of the first portion of the cell in a coplanar arrangement with the side wall of the second portion of the cell.
- 12. An electrochemical cell according to claim 1 wherein the second portion side wall further comprises an outwardly extending offset portion, said offset portion is mated with the side wall of the first portion forming a seam for welding.
- 13. An electrochemical cell according to claim 1, wherein the first cell portion side wall further comprises an inwardly extending offset portion and the second cell portion further comprising an outwardly extending offset portion, said inwardly extending offset of the first cell portion is mated with said outwardly extending offset of the second cell portion to form a seam for welding.
- 14. An electrochemical cell according to claim 1 wherein the first cell portion side wall further comprises an inwardly extending offset mated with the side wall of the second portion of the cell to form a seam for welding.
- 15. An electrochemical cell according to claim 1, further comprising a seam for welding formed by positioning the first cell portion within the second cell portion wherein the side wall of the first cell portion is disposed within the side wall of the second portion in a non coplanar arrangement.
- 16. An electrochemical cell according to claim 1, wherein the first portion and the second portion are characterized as having been sealed together using a laser beam.
- 17. A method for providing an electrochemical cell, comprising the steps of:
a) forming a first portion having a first surrounding side wall extending to and meeting with a generally planar first major face wall and a second portion having a second surrounding side wall extending to and meeting with a generally planar second major face wall; b) positioning an anode and a cathode in one of the first portion and the second portion; c) connecting the anode and the cathode to respective terminals; d) mating the first portion with the second portion with the first surrounding side wall sealed to the second surrounding side wall to house the anode and the cathode therein; and e) activating the anode and the cathode with an electrolyte.
- 18. The method of claim 17 including providing the first surrounding side wall being angled with respect to the first major face wall and providing the second surrounding side wall being angled with respect to the second major face wall.
- 19. The method of claim 17 including providing at least one recess formed in at least one of the planar first and second major face walls.
- 20. The method of claim 17 including providing at least one recess comprising a recess wall extending to and meeting with a surrounding side wall which is at an obtuse angle or perpendicular to a plane of the at least one of the planar first and second major face walls.
- 21. The method of claim 17 including providing at least one recess comprising a recess wall extending to and meeting with a surrounding side wall which is partly formed by one of the first and the second surrounding side walls of the respective first and second portions.
- 22. The method of claim 17 including providing the planar first and second major face walls of the first and second portions of the casing disposed parallel to each other with the first portion and the second portion of the casing mated to each other.
- 23. The method of claim 17 including providing the planar first major face wall and the second planar major face wall of the respective first and second portions of the casing being angled with respect to each other.
- 24. The method of claim 17 including providing the cell as either a primary or a second electrochemical cell.
- 25. The method of claim 17 including providing the first and second portions of the casing of a metal material.
- 26. The method of claim 17 including providing at least one recess in each of the first and second portions of the casing.
- 27. The method of claim 17 including providing a seam for welding formed by positioning the side wall of the first portion of the cell in a coplanar arrangement with the side wall of the second portion of the cell.
- 28. The method of claim 17 wherein the second portion side wall further comprises an outwardly extending offset portion, and mating said offset portion with the side wall of the first portion forming a seam by welding.
- 29. The method of claim 17 wherein the first cell portion side wall further comprises an inwardly extending offset portion and the second cell portion further comprising an outwardly extending offset portion, and welding said inwardly extending offset of the first cell portion with said outwardly extending offset of the second cell portion to form a seam by welding.
- 30. The method of claim 17 wherein the first cell portion side wall further comprises an inwardly extending offset mated with the side wall of the second portion of the cell to form a seam by welding.
- 31. The method of claim 17 including providing a seam for welding by positioning the first cell portion within the second cell portion with the side wall of the first cell portion being disposed within the side wall of the second portion in a non coplanar arrangement.
- 32. The method of claim 17 including welding the first portion to the second portion to seal them together.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present application claims priority based on provisional application Ser. No. 60/195,007, filed Apr. 6, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60195007 |
Apr 2000 |
US |