Heat dissipating device for an electrochemical storage device

Patent metadata

Field	Value
Publication number	US-10218042-B2
Application number	US-201314759276-A
Country	US
Kind code	B2
Filing date	Dec 20, 2013
Priority date	Jan 8, 2013
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A system having an electrochemical storage device is provided including an anode chamber filled with anode material and cathode chamber filled with cathode material. The anode chamber is separated from the cathode chamber by ion-conducting solid body electrolytes. The anode chamber is defined on one side by the solid body electrolytes, and on the other side by a wall surrounding the solid body electrolytes. The device has a head part to receive and/or supply electric energy, base part arranged opposite the head part and at least one lateral part having at least one wall between the head and base part. At least one heat dissipating device receives heat from the electrochemical storage device via a first surface and/or to supply heat thereto and to supply and/or receive heat via a second surface. A receiving section is in thermal contact with the heat dissipating device.

First claim

The invention claimed is:

1. A system comprising:
an electrochemical storage device which, when operating normally, comprises an anode compartment filled with an anode material and a cathode compartment filled with a cathode material, wherein the anode compartment is separated from the cathode compartment by an ion conducting solid electrolyte, wherein the anode compartment is defined on one side at least in part by the solid electrolyte, and on another side at least in part by a wall at least partially surrounding the solid electrolyte, and
wherein the electrochemical storage device comprises a top part, at which electrical energy may be supplied or conducted away, a bottom part arranged opposite the top part, and at least one side part comprising the wall and arranged between top part and bottom part, and
wherein the system further comprises at least one heat dissipating device, configured to be separable from the electrochemical storage device and to receive heat from the electrochemical storage device via a first surface and to release the heat via a second surface,
wherein the electrochemical storage device further comprises a receiving portion, configured to be brought into thermal contact with the heat dissipating device,
wherein the first surface of the heat dissipating device is adapted to be connected at least in part with the receiving portion of the electrochemical storage device,
wherein the top part has a larger circumferential surface than the bottom part and the side part comprises a shaped region such that the electrochemical storage device is tapered from the top part towards the bottom part and the electrochemical storage device is removably supported at the shaped region by the heat dissipating device, and
wherein an uppermost surface of the heat dissipating device contacts the shaped region.

2. The system as claimed in claim 1 ,
wherein the electrochemical storage device is embodied as an NaNiCl 2 cell, or as an NaFeCl 2 cell or as a mixture of these cells.

3. The system as claimed in claim 1 ,
wherein the receiving portion is arranged at the wall.

4. The system as claimed in claim 1 ,
wherein the receiving portion takes the form of a depression and/or recess and/or shaping, of the wall.

5. The system as claimed in claim 1 ,
wherein the first surface of the heat dissipating device is smaller than the second surface.

6. The system as claimed in claim 1 ,
wherein the receiving portion is shaped such that on thermal contact of the heat dissipating device with the electrochemical storage device an integrated overall shape of the system results,
wherein a first portion of the overall shape is determined by the heat dissipating device and a second portion of the overall shape is determined by the electrochemical storage device.

7. The system as claimed in claim 1 ,
wherein the receiving portion is arranged closer to the bottom part than to the top part.

8. The system as claimed in claim 1 ,
wherein the heat dissipating device comprises at least one shaped region, configured to guide a heat transfer medium flowing past the system fluid-dynamically in a preferential direction on thermal contact between electrochemical storage device and heat dissipating device.

9. The system as claimed in claim 8 ,
wherein the shaped region comprises a surface portion on which a heat transfer medium flowing past the system acts with fluid-dynamic turbulence.

10. The system as claimed in claim 1 ,
wherein the heat dissipating device comprises an electrically insulating layer at the outermost surface of the heat dissipating device.

11. A thermal module for storing and releasing electrical energy, comprising
multiple electrically interconnected systems as claimed in claim 1 ,
wherein the systems are surrounded by a heat transfer medium for heat transfer purposes.

12. A method for producing a system as claimed in claim 1 , comprising:
bringing the electrochemical storage device into thermal contact with the heat dissipating device at a receiving portion.

13. The system as claimed in claim 1 , wherein a distance between the solid electrolyte and the wall at the side part is smaller than the distance between the solid electrolyte and the wall at the top part.

14. The system as claimed in claim 1 , wherein the receiving portion takes the form of a depression or recess so that the heat dissipation device and the electrochemical storage device are connected together by suitably shaped mating regions to form the thermal contact.

15. The system as claimed in claim 1 , wherein the heat dissipating device is embodied in multiple pieces.

16. The system as claimed in claim 15 , wherein at least one of the multiple pieces has a triangular basic shape.

17. The system as claimed in claim 1 , wherein the second surface of the heat dissipating device comprises a shaped region that takes the form of a flow guided surface.

18. The system as claimed in claim 1 , wherein the first surface of the heat dissipating device is adapted to be connected at least in part with an exact fit with the receiving portion of the electrochemical storage device.

Assignees

• Siemens Ag

Inventors

• Kuhne Michael

Classifications

• H01M10/3909 Primary

  Sodium-sulfur cells · CPC title

• H01M10/6556 Primary

  Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) · CPC title

• H01M2/0252

  Electricity · mapped topic

• Y10T29/4911

  including sealing · CPC title

• H01M10/65

  Means for temperature control structurally associated with the cells · CPC title