DE102011109247A1 - High-voltage battery for vehicle application, has several cell blocks which are divided into submodules that are electroconductively and detachably connected to one another - Google Patents

High-voltage battery for vehicle application, has several cell blocks which are divided into submodules that are electroconductively and detachably connected to one another Download PDF

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Publication number
DE102011109247A1
DE102011109247A1 DE201110109247 DE102011109247A DE102011109247A1 DE 102011109247 A1 DE102011109247 A1 DE 102011109247A1 DE 201110109247 DE201110109247 DE 201110109247 DE 102011109247 A DE102011109247 A DE 102011109247A DE 102011109247 A1 DE102011109247 A1 DE 102011109247A1
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Prior art keywords
submodules
cell
cells
voltage battery
divided
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DE201110109247
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German (de)
Inventor
Jens Meintschel
Rainer Kaufmann
Dipl.-Ing. Dr. Schröter Dirk
Christian Brommer
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Mercedes Benz Group AG
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Daimler AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/512—Connection only in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The high-voltage battery has several cell blocks having several cells (2) which are connected in parallel or in series. A cell connector electroconductively connects the cell. Each cell block is divided into submodules (1) that are electroconductively and detachably connected to one another.

Description

Hochvolt-Batterien umfassen eine Vielzahl von Einzelzellen, die in Reihe oder parallel geschaltet sind, und die sich mit der dazu gehörenden elektronischen und Kühl- oder Heiz-Einrichtung in einem gemeinsamen Gehäuse befinden.High-voltage batteries include a plurality of single cells connected in series or in parallel, which are located in a common housing with the associated electronic and cooling or heating device.

Um den Bauraum zu minimieren und den elektrischen Übergangswiderstand zu verringern, der sonst besonders unter Korrosionseinfluss auftritt, werden die Zellen unlösbar miteinander verbunden, zum Beispiel stoffschlüssig oder formschlüssig. Dabei bedeutet „unlösbar”, dass eine Trennung nur bei Zerstörung von Bauteilen vorgenommen werden kann. Zur elektrischen Verbindung werden die Pole der Zellen direkt oder unter Zwischenschaltung eines metallischen Zellverbinders verbunden, beispielsweise mittels Schweißung oder Crimpung. Ein Nachteil besteht darin, dass ein Trennen der unlösbaren Verbindung, zum Beispiel bei Reparatur wegen eines Defektes einer Zelle, aufwändig ist. Um den Aufwand beziehungsweise die Menge der zu verwerfenden Teile bei Defekt einer einzelnen Komponente zu reduzieren, könnte zwar die Anzahl der Zellen pro Zellblock reduziert werden. Doch wird hierdurch wiederum die Anzahl von Zellblöcken, die innerhalb einer Batterie durch lösbare Verbindungen elektrisch verbunden sind, vergrößert, und damit steigen auch Kosten und Bauraum.In order to minimize the installation space and to reduce the electrical contact resistance, which otherwise occurs particularly under the influence of corrosion, the cells are inextricably linked, for example cohesively or positively. In this case, "insoluble" means that a separation can only be made if components are destroyed. For electrical connection, the poles of the cells are connected directly or with the interposition of a metallic cell connector, for example by means of welding or crimping. A disadvantage is that a separation of the insoluble compound, for example, in repair due to a defect of a cell, is expensive. In order to reduce the effort or the amount of parts to be rejected in case of defect of a single component, although the number of cells per cell block could be reduced. However, this in turn increases the number of cell blocks that are electrically connected within a battery by detachable connections, and thus increase costs and space.

Der Erfindung liegt die Aufgabe zugrunde, eine Hochvolt-Batterie gemäß dem Oberbegriff von Anspruch 1 derart zu gestalten, dass die oben genannten Probleme gelöst werden, und dass insbesondere der Bauraum sowie die bei Reparaturen und so weiter anfallenden Kosten verringert werden.The invention has for its object to make a high-voltage battery according to the preamble of claim 1 such that the above problems are solved, and that in particular the space and the costs incurred in repairs and so on costs are reduced.

Diese Aufgabe wird gemäß den Merkmalen von Anspruch 1 gelöst.This object is achieved according to the features of claim 1.

Demgemäß wird vorgesehen, die Zellblöcke jeweils in Submodule zu unterteilen, und die Zellen innerhalb eines Submoduls unlösbar elektrisch miteinander zu verbinden, beispielsweise durch Stoffschluss oder Formschluss. Es bilden somit mehrere Submodule einen Zellblock. Die Submodule sind zum Herstellen einer elektrischen Reihen- oder Parallelschaltung durch lösbare Verbindungen wie Schrauben, Klemmen, Nieten und so weiter in leitende Verbindung gebracht. Im Allgemeinen wendet man eine kraftschlüssige Verbindung an. Um den Aufwand zu verringern, werden die üblichen Einrichtungen des Zellblockes für Verpressung (Druckbrillen mit Spannelementen wie Zuganker, Spannbänder), Kühlung oder Heizung (Kühlplatten), Fixierung im Batteriegehäuse (Halteösen), Elektronik (Zellspannungsüberwachung und Balancing) jeweils gemeinsam für alle Submodule verwendet.Accordingly, it is provided to subdivide the cell blocks into submodules in each case, and to non-detachably connect the cells within a submodule electrically, for example by material connection or positive connection. Thus, several submodules form a cell block. The submodules are brought into conductive communication with detachable connections such as screws, clamps, rivets and so forth for making electrical series or parallel connection. In general, you use a non-positive connection. To reduce the effort, the usual facilities of the cell block for compression (pressure goggles with tensioning elements such as tie rods, straps), cooling or heating (cooling plates), fixation in the battery housing (eyelets), electronics (cell voltage monitoring and balancing) are used together for all submodules ,

Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im Einzelnen folgendes dargestellt:The invention is explained in more detail with reference to the drawing. The following is shown in detail:

Dabei zeigen:Showing:

1 ein Submodul mit prismatischen Zellen und Haltern (Spacern) zum Einhalten eines Abstandes zwischen zwei einander benachbarten Zellen in Explosionsdarstellung; 1 a submodule with prismatic cells and spacers for keeping a distance between two adjacent cells in an exploded view;

2 ein montiertes Submodul aus prismatischen Zellen, Spacern und einer Zellverbinderplatine in Explosionsdarstellung; 2 a mounted submodule of prismatic cells, spacers and a cell connector board in exploded view;

3 die Gegenstände von 2 im montierten Zustand; 3 the objects of 2 in the assembled state;

4 ein Submodul aus prismatischen Zellen mit Zellverbindern ohne die Zellverbinderplatine und ohne Spacer, in Explosionsdarstellung; 4 a submodule of prismatic cells with cell connectors without the cell connector board and without spacer, in exploded view;

5 den Gegenstand von 4 in montiertem Zustand; 5 the object of 4 in assembled condition;

6 einen Zellblock mit Submodulen aus prismatischen Zellen in Explosionsdarstellung; 6 a cell block with submodules of prismatic cells in an exploded view;

7 den Zellblock gemäß 6 in montiertem Zustand; 7 according to the cell block 6 in assembled condition;

8 einen vergrößerten Ausschnitt aus einem Zellblock mit Submodulen aus prismatischen Zellen; 8th an enlarged section of a cell block with submodules of prismatic cells;

9 einen montierten Zellblock mit Submodulen aus prismatischen Zeilen; 9 a mounted cell block with submodules of prismatic lines;

10 ein Submodul aus Pouchzellen und Rahmen in Explosionsdarstellung; 10 a submodule of pouch cells and frame in exploded view;

11 ein Submodul aus Pouchzellen und Rahmen in montiertem Zustand; 11 a submodule of pouch cells and frame in the assembled state;

12 ein Submodul aus Pouchzellen ohne Rahmen (= elektrischer Kreis); 12 a submodule of pouch cells without frames (= electrical circuit);

13 Pouchzellen eines Submoduls mit Zellverbinder vor und nach dem Verschweißen; 13 Pouch cells of a submodule with cell connectors before and after welding;

14 eine Rand-Pouchzelle eines Submoduls mit Kontaktstück vor und nach der Verschweißung; 14 an edge pouch cell of a submodule with contact piece before and after the welding;

15 einen Zellblock aus Submodulen mit Pouchzellen in Explosionsdarstellung: 15 a cell block of submodules with pouch cells in an exploded view:

16 einen Zellblock aus Submodulen mit Pouchzellen; 16 a cell block of submodules with pouch cells;

17 einen Ausschnitt aus einem Zellblock aus Submodulen mit Pouchzellen; 17 a section of a cell block of submodules with pouch cells;

18 einen Zellblock aus Submodulen mit Pouchzellen; 18 a cell block of submodules with pouch cells;

19 einen Zellblock aus Submodulen mit Pouchzellen: 19 a cell block of submodules with pouch cells:

Das in 1 dargestellte Submodul 1 ist Bestandteil eines Zellblocks. Man erkennt eine einzelne prismatische Zelle 2, gefolgt von einem Rahmen der als Spacer dient, dieser wiederum gefolgt von einer weiteren Zelle 2, und schließlich einer Druckbrille 3. Eine solche Druckbrille 3 befindet sich an jedem stirnseitigen Ende des Submoduls 1. Die beiden Druckbrillen sind mittels Zugankern 4 (siehe 7) miteinander verbunden und spannen das gesamte Paket aus Zellen und Spacern zusammen.This in 1 illustrated submodule 1 is part of a cell block. One recognizes a single prismatic cell 2 followed by a frame serving as a spacer, followed by another cell 2 , and finally a pressure goggles 3 , Such pressure glasses 3 is located at each end of the submodule 1 , The two pressure goggles are by tie rods 4 (please refer 7 ) and span the entire package of cells and spacers together.

2 zeigt wiederum ein Submodul 1, ferner eine zugehörende Zellverbinderplatine 5. Diese weist zwei Kontaktstücke 6 mit hieran befindlichen Gewindezapfen 7 auf. Nach dem Zusammenbau des aus Submodulen bestehenden Zellblocks werden die Kontaktstücke der Submodule über Stromschienen miteinander verbunden. Wird nach der Montage beziehungsweise während des Betriebes ein Defekt festgestellt, so braucht lediglich das jeweilige Submodul 1 ausgetauscht zu werden. 2 again shows a submodule 1 and an associated cell connector board 5 , This has two contact pieces 6 with threaded pins located thereon 7 on. After assembling the cell block consisting of submodules, the contact pieces of the submodules are connected to each other via busbars. If a defect is detected after assembly or during operation, only the respective submodule is required 1 to be exchanged.

Das in 3 dargestellte Submodul 1 umfasst eine Vielzahl von prismatischen Zellen und Spacern sowie eine Zellverbinderplatine 5. Auch hier sind wieder Kontaktstücke 6 mit Gewindezapfen 7 zu sehen.This in 3 illustrated submodule 1 includes a variety of prismatic cells and spacers, as well as a cell connector board 5 , Again, there are contacts 6 with threaded pin 7 to see.

Das in 4 gezeigte Submodul ist aus prismatischen Zellen 2 aufgebaut. Es sind Zellverbinder 8 vorgesehen, von denen zwei wiederum ein Kontaktstück 6 tragen, mit Gewindezapfen 7 tragen. Die Zellverbinder 8 werden mittels Laserschweißung im Überlapp-Verfahren an die Zellpole 9 angeschweißt.This in 4 Submodule shown is made of prismatic cells 2 built up. They are cell connectors 8th two of which are in turn a contact piece 6 wear, with threaded pin 7 wear. The cell connectors 8th be laser-welded in the overlap process to the cell poles 9 welded.

Das in 5 gezeigte Submodul 1 umfasst prismatische Zellen mit Zellverbindern 8. Die Zellverbinderplatine ist nicht dargestellt.This in 5 shown submodule 1 includes prismatic cells with cell connectors 8th , The cell connector board is not shown.

6 zeigt einen Zellblock mit Submodulen 1. 6 shows a cell block with submodules 1 ,

Es sind eine einzige Kühlplatte 10 und eine einzige Wärmeleitfolie 11 vorgesehen. Beide erstrecken sich über die gesamte Länge des Zellblockes in montiertem Zustand. Die Kühlplatte 10 dient zum Temperieren der Zellen, und die Wärmeleitfolie dient zum elektrischen Isolieren sowie zum Ausgleichen von Temperaturunterschieden, die von Zelle zu Zelle auftreten können. Die Kühlplatte 10 wird von Zellverbindern 8 gepresst, die ihrerseits über Ableiter (nicht dargestellt) thermisch an das innere der Zellen 2 angebunden sind – sogenannte Ableiterkühlung. Die Kontaktstücke 6 der Submodule 1 sind über nicht dargestellte Stromschienen miteinander verbunden.It is a single cooling plate 10 and a single thermal foil 11 intended. Both extend over the entire length of the cell block in the assembled state. The cooling plate 10 is used to temper the cells, and the heat-conducting foil is used for electrical insulation and to compensate for temperature differences that can occur from cell to cell. The cooling plate 10 is made by cell connectors 8th pressed, in turn, via arresters (not shown) thermally to the interior of the cells 2 are connected - so-called Ableiterkühlung. The contact pieces 6 the submodules 1 are connected to each other via bus bars, not shown.

7 zeigt wiederum einen Zellblock mit Submodulen aus prismatischen Zellen. Die Kontaktstücke 6 der einzelnen Submodule sind noch nicht miteinander elektrisch verbunden. 7 again shows a cell block with submodules of prismatic cells. The contact pieces 6 The individual submodules are not yet electrically connected to each other.

Wie eine solche Verbindung aussieht, ergibt sich aus 8. Man erkennt daraus zwei Endbereiche zweier einander benachbarter Submodule. Von jedem Submodul sieht man ein Kontaktstück 6 mit Gewindezapfen 7. Eine Stromschiene 12 steht vor dem Aufschieben auf die beiden Gewindezapfen 7, 7 der Kontaktstücke 6, 6. Nach dem Aufschieben der Stromschiene 12 werden die beiden Muttern 13, 13 auf die Gewindezapfen 7, 7 aufgeschraubt.What such a connection looks like results from 8th , It can be seen from two end regions of two adjacent submodules. From each submodule you can see a contact piece 6 with threaded pin 7 , A power rail 12 is facing the sliding on the two threaded pins 7 . 7 the contact pieces 6 . 6 , After pushing the busbar 12 be the two nuts 13 . 13 on the threaded pins 7 . 7 screwed.

9 zeigt den fertig montierten Zellblock. 9 shows the assembled cell block.

Die 10 bis 18 zeigen eine weitere konstruktive Ausführungsform der Erfindung.The 10 to 18 show a further constructive embodiment of the invention.

10 zeigt wiederum einige Pouchzellen mit Rahmen in montierten Zustand. Es folgen sodann – in der Figur nach rechts fortschreitend – eine weitere Pouchzelle 2, sowie ein weiterer Rahmen 14. Die beiden Rahmen 14 weisen Zellverbinder 8 auf. Der in der Figur rechts gezeigte Rahmen weist ein eingespritztes Kontaktstück 6 auf. 10 again shows some pouch cells with frame in assembled state. Then follow - in the figure to the right progressing - another pouch cell 2 , as well as another frame 14 , The two frames 14 show cell connectors 8th on. The frame shown on the right in the figure has an injected contact piece 6 on.

11 zeigt das fertig montierte Submodul von 10. Siehe die Kontaktstücke 6. 11 shows the fully assembled submodule of 10 , See the contacts 6 ,

13 zeigt ein Submodul aus Pouchzellen in einer Übersichtsdarstellung ohne Rahmen (= elektrischer Kreis). 13 zeigt die Pouchzellen 2 eines Submoduls mit Zellverbinder 8 vor und nach dem Verschweißen. 13 shows a submodule of pouch cells in an overview without frame (= electrical circuit). 13 shows the pouch cells 2 a submodule with cell connector 8th before and after welding.

14 zeigt eine Pouchzelle, die sich am Rande eines Submoduls befindet, mit Kontaktstück 6 vor und nach dem Verschweißen. 14 shows a Pouchzelle, which is located at the edge of a submodule, with contact piece 6 before and after welding.

15 zeigt einen Zellblock mit drei Submodulen 1, 1, 1 in einer Phase des Zusammenbaus. Die Submodule umfassen drei Pouchzellen. An den drei Enden des Zellblockes sind Druckbrillen 3 vorgesehen. 15 shows a cell block with three submodules 1 . 1 . 1 in a phase of assembly. The submodules comprise three pouch cells. At the three ends of the cell block are pressure goggles 3 intended.

16 zeigt den Zellblock gemäß 15 nach dem Montieren, aber ohne Kontaktstücke. 16 shows the cell block according to 15 after mounting, but without contact pieces.

17 zeigt einen vergrößerten Ausschnitt des Gegenstandes von 16. Man sieht die beiden Kontaktstücke 6, 6 der aneinander angrenzenden Submodule. Die Stromschiene 12 ist bereit zum Aufschrauben mittels zweier Schrauben 15, 15. 17 shows an enlarged section of the article of 16 , You can see the two contact pieces 6 . 6 the adjoining submodules. The busbar 12 is ready for screwing by means of two screws 15 . 15 ,

18 zeigt einen Zellblock mit Pouchzellen vor dem Aufschrauben von Kühlplatten 10. 18 shows a cell block with pouch cells before screwing on cold plates 10 ,

19 zeigt den komplett montierten Zellblock aus Submodulen mit Pouchzellen und montierten Kühlplatten. 19 shows the completely assembled cell block of submodules with pouch cells and mounted cold plates.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Submodulsubmodule
22
Zellecell
33
Druckbrillepressure glasses
44
Zugankertie rods
55
ZellverbinderplatineCell connector board
66
Kontaktstückcontact piece
77
Gewindezapfenthreaded pin
88th
Zellverbindercell connectors
99
Zellpolcell pole
1010
Kühlplattecooling plate
1111
WärmeleitfolieHeat conducting
1212
Stromschieneconductor rail
1313
Muttermother
1414
Rahmenframe
1515
Schraubescrew

Claims (4)

Hochvolt-Batterie mit wenigstens einem Zellblock mit den folgenden Bauteilen beziehungsweise Merkmalen: – eine Vielzahl von Zellen (2) die parallel oder in Reihe geschaltet sind; – wenigstens eine Kühl-/Heizeinrichtung; – Zellverbinder (8) zum elektrisch leitenden Verbinden der Zelle (2); dadurch gekennzeichnet, dass – jeder Zellblock in wenigstens zwei Submodule (1) unterteilt ist; – die Submodule elektrisch leitend miteinander verbindbar sind.High-voltage battery having at least one cell block with the following components or features: a plurality of cells ( 2 ) which are connected in parallel or in series; - At least one cooling / heating device; - cell connector ( 8th ) for electrically connecting the cell ( 2 ); characterized in that - each cell block is divided into at least two submodules ( 1 ) is divided; - The submodules are electrically connected to each other. Hochvolt-Batterie nach Anspruch 1, dadurch gekennzeichnet, dass die elektrisch leitenden Verbindungen zwischen Submodulen lösbare Verbindungen sind.High-voltage battery according to claim 1, characterized in that the electrically conductive connections between submodules are detachable connections. Hochvolt-Batterie nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die elektrisch leitenden Verbindungen zwischen Submodulen (1, 1) aus Schrauben, Klemmen oder Nieten gebildet sind.High-voltage battery according to claim 1 or 2, characterized in that the electrically conductive connections between submodules ( 1 . 1 ) are formed from screws, clamps or rivets. Hochvolt-Batterie nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass alle oder wenigstens einige der weiteren Vorrichtungen des Zellblockes wie Druckbrillen, Kühl-/Heizeinrichtungen, Fixiereinrichtungen im Batteriegehäuse, elektronische Einrichtungen wie Zellspannungsüberwachung und Balancing allen Submodulen gemeinsam sind.High-voltage battery according to one of claims 1 to 3, characterized in that all or at least some of the other devices of the cell block such as pressure goggles, cooling / heating devices, fixing devices in the battery case, electronic devices such as cell voltage monitoring and balancing are common to all submodules.
DE201110109247 2011-08-02 2011-08-02 High-voltage battery for vehicle application, has several cell blocks which are divided into submodules that are electroconductively and detachably connected to one another Withdrawn DE102011109247A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104979505A (en) * 2014-04-04 2015-10-14 福特全球技术公司 Battery pack array separator
CN112670633A (en) * 2019-09-30 2021-04-16 罗伯特·博世有限公司 Battery module having a plurality of battery cells and method for producing such a battery module
DE102021125528A1 (en) 2021-10-01 2023-04-06 Audi Aktiengesellschaft Cell separating device for spacing two adjacent battery cells in a battery module and battery module and motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104979505A (en) * 2014-04-04 2015-10-14 福特全球技术公司 Battery pack array separator
CN104979505B (en) * 2014-04-04 2020-12-04 福特全球技术公司 Battery pack array structure partition plate
CN112670633A (en) * 2019-09-30 2021-04-16 罗伯特·博世有限公司 Battery module having a plurality of battery cells and method for producing such a battery module
DE102021125528A1 (en) 2021-10-01 2023-04-06 Audi Aktiengesellschaft Cell separating device for spacing two adjacent battery cells in a battery module and battery module and motor vehicle

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