DEVICE FOR DISSIPATING HEAT FROM AN ARRANGEMENT OF RECHARGEABLE ELECTROCHEMICAL ENERGY STORES

Abstract

The present invention relates to a device for dissipating heat from an arrangement of recharge-able electrochemical energy stores. Said device comprises a heat pipe and a heat coupling-in element. The present invention also relates to an arrangement of rechargeable electrochemical energy stores, which arrangement comprises the device according to the invention.

Claims

1. A heat dissipation insert comprising an insert heat pipe and a heat coupling-in element, wherein the heat coupling-in element comprises at least 50% by weight, of a thermally conductive material having an in-plane thermal conductivity of at least 0.1 W/(m*K).

2. The heat dissipation insert of claim 1, wherein the heat coupling-in element comprises a thermally conductive thermoplastic composition having an inplane thermal conductivity of 0.1 to 30 W/(m*K), and having a volume resistivity of more than 1010 ohm*m.

3. The heat dissipation insert according to claim 1, wherein the heat coupling-in element comprises a thermally conductive thermoplastic composition having an inplane thermal conductivity of 0.5 to 50 W/(m*K).

4. The heat dissipation insert according to claim 1, wherein the heat coupling-in element comprises at least 50% by weight of a metal, in particular aluminium, copper or iron, or of a metal alloy, in particular an aluminium alloy, a copper alloy or an iron alloy.

5. The heat dissipation insert claim 1, wherein the insert heat pipe is encapsulated with the thermoplastic composition of the heat coupling-in element.

6. The heat dissipation insert of claim 1, wherein the thermoplastic composition is a composition comprising a polycarbonate.

7. A battery pack comprising the heat dissipation insert of claims 1.

8. The battery pack of claim 7, wherein the heat dissipation insert of the battery pack is connected to a battery pack heat sink.

9. The battery pack of claim 8, wherein the battery pack heat sink is connected to at least one battery pack heat sink heat pipe.

10. The battery pack according to claim 9, wherein the battery pack heat sink heat pipe is connected to an electrothermal transducer.

11. The heat dissipation insert of claim 1, wherein the insert heat pipe is connected to an electrothermal transducer.

12. The battery pack of claim 10, wherein the electrothermal transducer is a Peltier element or a thermal element.

13. The battery pack of claim 12, wherein the electrothermal transducer is a Peltier element that has a hot-end heat sink.

14. An electric car comprising a heat dissipation insert of claim 1.

15-16. (canceled)

17. The heat dissipation insert of claim 11, wherein the electrothermal transducer is a Peltier element or a thermal element.

18. The heat dissipation insert of claim 17, wherein the electrothermal transducer is a Peltier element that has a hot-end heat sink.

19. An electric car comprising a battery pack of claim 7.

Description

[0121] FIG. 1 shows a battery pack (3) with batteries (1) arranged in a manner analogous to the densest hexagonal packing of spheres and with insert heat pipes (2).

[0122] FIG. 2 shows a detail from a battery pack with batteries (1) arranged in a manner analogous to the densest hexagonal packing of spheres, with insert heat pipes (2) and heat coupling-in elements (4).

[0123] FIG. 3 shows an insert (5) with insert heat pipes (2) and heat coupling-in elements (4).

[0124] FIG. 4 shows a cross section through an insert (5) with insert heat heat pipe (2) and heat coupling-in element (4).

[0125] FIG. 5 shows a side view of multiple batteries (1) with insert heat pipes (2).

[0126] FIG. 6 shows the cross section through an arrangement of two batteries (1) in series with a neighbourhood intermediate space (6).

[0127] FIG. 7 shows the cross section through an arrangement of batteries (1) analogous to the densest hexagonal packing of spheres with a neighbourhood intermediate space (7).

[0128] FIG. 8 shows the cross section through an arrangement of batteries (1) analogous to the primitive cubic packing of spheres with a neighbourhood intermediate space (8).

[0129] FIG. 9 shows a schematic illustration of a battery pack (3) with batteries (1), inserts (5) comprising insert heat pipes (2) and heat coupling-in elements (4), battery pack heat sink (9), battery pack heat sink heat pipe (10), cell holder (11), housing (12), hot-end heat sink (13), heat conduction layer (14), Peltier element (15) and cold-end heat sink (16).