Battery with a Heat Conducting Plate

• US 20100104936A1
• Filed: 02/27/2008
• Published: 04/29/2010
• Est. Priority Date: 02/27/2007
• Status: Abandoned Application

• Current Assignee: Daimler AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler AG (Mercedes-Benz Group AG)
• Inventors: Meintschel, Jens, Schroeter, Dirk, Schulz, Petra
• Application Number:
  US12/528,751
• Publication Number:
  US 20100104936A1
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/643 Cylindrical cells
• CPC Class Codes: H01M 10/653 characterised by electrically insulating or thermally conductive materials
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: H01M 50/179 for cells having curved cross-section, e.g. round or elliptic H01M50/176, H01M50/181 take precedence
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/24 adapted for protecting batteries from their environment, e.g. from corrosion thermal insulation H01M10/658
• CPC Class Codes: H01M 50/502 Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/559 Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells H01M50/553 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery has a heat conducting plate for temperature control, and a plurality of parallel and/or serially connected single cells which are thermally coupled to the heat conducting plate. A channel structure is arranged in the heat conducting plate for guiding a flow of a heat conducting medium therein, and connection cross sections for the channel structure extend from the heat conducting plate. In the region of the poles of the single cells the heat conducting plate has bores through which the poles of the single cells extend. An insert piece which is made from an electrically insulating material and is arranged around the pole of a single cell, at least partially abuts the outer surface of the pole, and has at least one spacer extending radially from the pole. The spacer is arranged in the region of the pole between the cover of the single cell and the heat conducting plate.

Claims

1-13. -13. (canceled)

14. A battery comprising:

a heat conducting plate for temperature control of the battery;

a plurality of single cells which are electrically interconnected and are thermally coupled to the heat conducting plate, and each of which has two poles; and

a channel structure arranged in the heat conducting plate for guiding a flow of a heat conducting medium therein; and

connection cross sections for the channel structure extending from the heat conducting plate;

wherein,

the heat conducting plate has bores in a region of the poles of the single cells;

the poles of the single cells project through the bores;

an insert piece of an electrically insulating material is arranged around a pole of a single cell;

the insert piece abuts the outer surface of the pole at least in sections;

the insert piece has at least one spacing collar extending at least radially from the pole; and

the spacing collar of the insert piece is arranged in a region of the poles between a cell housing cover of the single cell and the heat conducting plate.

15. The battery according to claim 14, wherein the spacing collar extends radially from the pole and progresses at an edge of the insert piece in an uninterrupted continuous manner.

16. The battery according to claim 14, wherein the insert piece is made of a heat-conducting material.

17. The battery according to claim 14, wherein both poles of a single cell have a single, one-piece insert piece.

18. The battery according to claim 14, wherein the insert piece surrounds substantially completely the outer surface of a pole.

19. The battery according to claim 14, wherein the heat conducting plate is made of a metal.

20. The battery according to claim 14, wherein a clear width of the bores is larger than an outer diameter of a respective pole.

21. The battery according to claim 14, wherein a form and clear measurements of a bore are larger than outer dimensions of both poles of a single cell.

22. The battery according to claim 14, wherein an electrically insulating and heat-conductive casting compound or foam is arranged within the battery housing in a gap between the heat conducting plate and the poles.

23. The battery according to claim 14, wherein an electrically insulating and heat-conductive casting compound or foam is arranged within the battery housing in a gap between the heat conducting plate and electrical connectors.

24. The battery according to claim 14, wherein an electrically insulating and heat-conductive casting compound or foam is arranged within the battery housing in a gap between the heat conducting plate and the cell housing cover.

25. The battery according to claim 14, wherein an electrically insulating and heat-conductive casting compound or foam is arranged within the battery housing in a gap between the heat conducting plate and a cover of the battery housing.

26. The battery according to claim 22, wherein the gap is completely filled by the casting compound or foam.

27. The battery according to claim 23, wherein the gap is completely filled by the casting compound or foam.

28. The battery according to claim 24, wherein the gap is completely filled by the casting compound or foam.

29. The battery according to claim 25, wherein the gap is completely filled by the casting compound or foam.