Feedthrough

Patent metadata

Field	Value
Publication number	US-9614199-B2
Application number	US-201314101971-A
Country	US
Kind code	B2
Filing date	Dec 10, 2013
Priority date	Jun 10, 2011
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

A feedthrough, for example through a part of a housing, such as a battery housing, is, for example, made of a metal, such as a light alloy, for example aluminum, an aluminum alloy, AlSiC, magnesium, a magnesium alloy, titanium, a titanium alloy, steel, stainless steel or high-grade steel. The housing part has at least one opening through which at least one conductor having a cross-section is guided in a glass or glass ceramic material. The conductor has at least two sections, a first section having a first, substantially round, for example a circular, cross section having a diameter in the region of the feedthrough through the glass or glass ceramic material, and a second section having a second, substantially non-round, for example a substantially rectangular cross-section, and the conductor is formed in one piece.

First claim

What is claimed is:

1. A feedthrough through a housing component of a housing, the feedthrough comprising:
a material which is a glass material or a ceramic material; and
at least one conductor embedded in said material and guided through an opening in the housing component, said at least one conductor having a cross section and at least two sections including a first section having a first substantially round cross section with a diameter (ID) in a region of the feedthrough through said material and a second section having a second substantially non-round cross section, said at least one conductor being a one-part component, said first substantially round cross section having a first cross-sectional area which is substantially the same as a second cross-sectional area of said second substantially non-round cross section.

2. The feedthrough according to claim 1 , wherein the housing is a battery housing.

3. The feedthrough according to claim 1 , wherein the housing consists essentially of a metal.

4. The feedthrough according to claim 3 , wherein said metal is a light metal.

5. The feedthrough according to claim 4 , said light metal being one of aluminum, an aluminum alloy, AlSiC, magnesium, a magnesium alloy, titanium, a titanium alloy, steel, stainless steel and a high-grade steel.

6. The feedthrough according to claim 1 , wherein said first substantially round cross section is a circular cross section.

7. The feedthrough according to claim 1 , wherein said second substantially non-round cross section is a substantially rectangular cross section.

8. The feedthrough according to claim 1 , said second section having at least two bends.

9. The feedthrough according to claim 1 , said second section having a region which is connectable with at least one of an anode and a cathode.

10. The feedthrough according to claim 9 , said second section having an additional region extending substantially horizontal, said additional region being located perpendicular to at least one of said first section and said region which is connectable with at least one of an anode and a cathode.

11. The feedthrough according to claim 10 , said second section including a stiffening.

12. The feedthrough according to claim 11 , said stiffening being a U-profile.

13. The feedthrough according to claim 12 , said stiffening being in said additional region of said second section.

14. The feedthrough according to claim 10 , wherein said at least one conductor is a pin-shaped conductor embedded in said glass material or said glass ceramic material, said pin-shaped conductor being inserted in a region of said opening of the housing component.

15. The feedthrough according to claim 14 , further comprising a base body accommodated by said opening of the housing component of the housing, said material which is a glass material or a glass ceramic material is introduced between said base body and said at least one conductor.

16. The feedthrough according to claim 15 , said material which is a glass material or a glass ceramic material has a sealing temperature which is lower than a melting temperature of at least one of said base body, said conductor, and a material of the housing.

17. The feedthrough according to claim 15 , the housing component has an outside and an inside and said base body is connected with at least one of said inside of the housing component and said outside of the housing component.

18. The feedthrough according to claim 17 , wherein said base body is connected with at least one of said inside of the housing component and said outside of the housing component through one of a welding connection, a soldering connection and pressing.

19. The feedthrough according to claim 18 , wherein the housing component is a cover of the housing.

20. The feedthrough according to claim 19 , wherein the housing component is a cover of a battery housing having an inside and an outside, said additional region of said second section extending substantially horizontal and parallel to said inside of said battery housing and having a surface defining a maximum distance to said inside of said battery housing, said maximum distance of said surface to said inside of said battery housing being in a range between approximately 0.7·ID to 1.5·ID or in a range of 3 millimeters (mm) to 5 mm.

21. The feedthrough according to claim 20 , wherein said additional region of said second section extends substantially horizontal and parallel to said cover of said battery housing and said maximum distance to said inside of said battery housing is in a range between approximately 3.5 mm to 4.5 mm.

22. The feedthrough according to claim 21 , further comprising an insulating material arranged between said inside of the housing component and a second surface of said second section opposite said surface defining said maximum distance to said inside of said battery housing.

23. The feedthrough according to claim 22 , wherein said insulating material is a plastic insulating material.

24. The feedthrough according to claim 1 , said at least one conductor being formed from a material which is a metal.

25. The feedthrough according to claim 24 , said metal of said at least one conductor being one of copper, CuSiC, a copper alloy, aluminum, AlSiC, an aluminum alloy, magnesium, a magnesium alloy, NiFe, a NiFe jacket with an interior copper part, silver, a silver alloy, gold, a gold alloy, and a cobalt-iron alloy.

26. The feedthrough according to claim 1 , said material which is a glass material or a glass ceramic material including in mole percent (mol-%):

P 2 O 5
35-50 mol-%;

Al 2 O 3
 0-14 mol-%;

B 2 O 3
 2-10 mol-%;

Na 2 O
 0-30 mol-%;

M 2 O
 0-30 mol-%, wherein M is one of K, Cs and Rb;

PbO
 0-10 mol-%;

Li 2 O
 0-45 mol-%;

BaO
 0-20 mol-%; and

Bi 2 O 3
 0-10 mol-%.

27. The feedthrough according to claim 26 , said material which is a glass material or a glass ceramic material including in mol-%:

P 2 O 5
3

Assignees

• Schott Ag

Inventors

• Hartl Helmut

Classifications

• H01M50/566

  by welding, soldering or brazing · CPC title

• H01M50/176

  for prismatic or rectangular cells (H01M50/181 takes precedence) · CPC title

• H01M50/562

  characterised by the material · CPC title

• H01M50/553

  Terminals adapted for prismatic, pouch or rectangular cells · CPC title

• H01M50/55

  on the same side of the cell · CPC title