Cell contact-making system for an electrochemical device

Patent metadata

Field	Value
Publication number	US-10784485-B2
Application number	US-201715616228-A
Country	US
Kind code	B2
Filing date	Jun 7, 2017
Priority date	Dec 9, 2014
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

A cell contact-making system for an electrochemical device that includes a plurality of electrochemical cells is provided. The cell contact-making system includes a signal conductor system having one or more signal conductors for electrically conductively connecting a signal source to a signal conductor terminal connector or to a monitoring arrangement of the electrochemical device, wherein the signal conductor system includes at least one flexible printed circuit, wherein the flexible printed circuit includes at least one flexible insulating film and at least one conductor track that is arranged on the insulating film.

First claim

The invention claimed is:

1. A cell contact-making system for an electrochemical device that includes a plurality of electrochemical cells, wherein the cell contact-making system includes a signal conductor system having one or more signal conductors for electrically conductively connecting a signal source to a signal conductor terminal connector or to a monitoring arrangement of the electrochemical device,
wherein the signal conductor system includes at least one flexible printed circuit,
wherein the flexible printed circuit includes at least one flexible insulating film and at least one conductor track that is arranged on the insulating film.

2. The cell contact-making system according to claim 1 , wherein the cell contact-making system includes at least one cell connector for electrically conductively connecting cell terminals of different electrochemical cells and/or at least one current terminal connector for electrically conductively connecting the electrochemical device to another electrochemical device or to a consumer,
wherein at least one conductor track includes a connection portion at which the conductor track is electrically conductively connected to a cell connector or a current terminal connector.

3. The cell contact-making system according to claim 2 , wherein the connection portion is fixed directly to a base body of the cell connector or current terminal connector.

4. The cell contact-making system according to claim 3 , wherein the connection portion is fixed to the base body by ultrasonic welding, friction welding, friction stir welding or soldering.

5. The cell contact-making system according to claim 2 , wherein the connection portion projects beyond an outer edge of the at least one insulating film.

6. The cell contact-making system according to claim 2 , wherein the at least one insulating film has, in the region of the connection portion, a window which is configured for contact to be made therethrough between the connection portion and the cell connector or current terminal connector or a joining tool.

7. The cell contact-making system according to claim 2 , wherein the connection portion has a region that projects towards the cell connector or current terminal connector.

8. The cell contact-making system according to claim 2 , wherein the connection portion is electrically conductively connected to the cell connector or current terminal connector by way of a terminal connector element.

9. The cell contact-making system according to claim 2 , wherein the connection portion is electrically conductively connected to the cell connector or current terminal connector by means of a bonding conductor.

10. The cell contact-making system according to claim 2 , wherein the connection portion is electrically conductively connected to the cell connector or current terminal connector by means of a crimping element.

11. The cell contact-making system according to claim 1 , wherein the flexible printed circuit includes at least two flexible insulating films between which at least one conductor track is arranged.

12. The cell contact-making system according to claim 1 , wherein at least one flexible printed circuit has at least one fold.

13. The cell contact-making system according to claim 1 , wherein the signal conductor system has a sensor which is arranged on a flexible printed circuit of the signal conductor system and is electrically conductively connected to at least one conductor track of the flexible printed circuit.

14. The cell contact-making system according to claim 13 , wherein the cell contact-making system includes a support element on which the signal conductor system is arranged, wherein the sensor is movable, as a result of deformation of the flexible printed circuit, from a first position in relation to the support element into a second position in relation to the support element.

15. The cell contact-making system according to claim 13 , wherein the support element has a passage opening through which there extends a sensor portion, carrying the sensor, of a flexible printed circuit of the signal conductor system.

16. The cell contact-making system according to claim 13 , wherein the sensor takes the form of a temperature sensor.

17. The cell contact-making system according to claim 1 , wherein the cell contact-making system includes a support element on which the signal conductor system is arranged, wherein the support element includes at least one positioning element on the support element side which cooperates with a positioning element on the signal conductor system side such that the signal conductor system is positioned in a desired location in relation to the support element.

18. The cell contact-making system according to claim 17 , wherein the support element is placeable on a housing of the electrochemical device in which a plurality of electrochemical cells are arranged.

Assignees

• Elringklinger Ag

Inventors

• Groshert Jan
• Fritz Wolfgang
• Bertsch Moritz

Classifications

• H01M10/425 Primary

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• H01M10/48

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M50/51

  Connection only in series · CPC title

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/516

  by welding, soldering or brazing · CPC title