DE102011076578A1 - Energy storage module for battery of motor car, has end plates comprising two pairs of opposite sides at distances, where one of distances is greater than other distance, and tie rods engage at end plates at one of pairs of opposed sides - Google Patents
Energy storage module for battery of motor car, has end plates comprising two pairs of opposite sides at distances, where one of distances is greater than other distance, and tie rods engage at end plates at one of pairs of opposed sides Download PDFInfo
- Publication number
- DE102011076578A1 DE102011076578A1 DE201110076578 DE102011076578A DE102011076578A1 DE 102011076578 A1 DE102011076578 A1 DE 102011076578A1 DE 201110076578 DE201110076578 DE 201110076578 DE 102011076578 A DE102011076578 A DE 102011076578A DE 102011076578 A1 DE102011076578 A1 DE 102011076578A1
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- energy storage
- storage module
- end plates
- tie rods
- distance
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- 238000004146 energy storage Methods 0.000 title claims description 35
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000005304 joining Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 31
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 2
- 210000000352 storage cell Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 101000737296 Pisum sativum Chlorophyll a-b binding protein AB96 Proteins 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
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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
- 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
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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
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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)
- Secondary Cells (AREA)
Abstract
Description
Die Erfindung betrifft ein Energiespeichermodul für eine Vorrichtung zur Spannungsversorgung, insbesondere eines Kraftfahrzeugs, aus mehreren prismatischen Speicherzellen, die, zumindest in einer Reihe gestapelt, hintereinander angeordnet und zwischen zwei Endplatten über Zuganker verspannt sind.The invention relates to an energy storage module for a device for power supply, in particular of a motor vehicle, of a plurality of prismatic memory cells, stacked at least in a row, arranged one behind the other and clamped between two end plates via tie rods.
In einer üblicherweise als Batterie bezeichneten Vorrichtung zur Spannungsversorgung eines Kraftfahrzeugs kommt meist eine Mehrzahl an Energiespeichermodulen zum Antrieb des Fahrzeugs, beispielsweise von Elektrofahrzeugen oder Hybridfahrzeugen, zum Einsatz. Ein jeweiliges Energiespeichermodul besteht typischerweise aus mehreren gestapelten prismatischen Speicherzellen. Die einzelnen Speicherzellen enthalten elektrochemische Zellen der Batterie. Der Stapel aus den einzelnen Speicherzellen wird zumeist über eine mechanische Endplatte und Zuganker zu dem Energiespeichermodul verspannt. Die Endplatten und Zuganker dienen neben der mechanischen Fixierung der Module zueinander insbesondere dazu, eine Verformung durch Gasdruckänderungen, welche beim Betrieb in den im Inneren der Module angeordneten elektrochemischen Zellen auftreten, entgegenzuwirken. Derartige Energiespeichermodule benötigen in der Regel eine Kühlung, um die Betriebstemperatur sicherzustellen.In a device usually referred to as a battery for supplying power to a motor vehicle, a plurality of energy storage modules are usually used to drive the vehicle, for example electric vehicles or hybrid vehicles. A respective energy storage module typically consists of several stacked prismatic storage cells. The individual memory cells contain electrochemical cells of the battery. The stack of individual memory cells is usually clamped to the energy storage module via a mechanical end plate and tie rods. The end plates and tie rods serve in addition to the mechanical fixation of the modules to each other in particular to counteract deformation by gas pressure changes, which occur during operation in the arranged inside the modules electrochemical cells. Such energy storage modules usually require cooling to ensure the operating temperature.
Es ist Aufgabe der vorliegenden Erfindung, ein Energiespeichermodul für eine Vorrichtung zur Spannungsversorgung anzugeben, das auf einfache Weise herstellbar ist und eine effektive Verspannung der Speicherzellen ermöglicht.It is an object of the present invention to provide an energy storage module for a device for power supply, which can be produced in a simple manner and allows effective clamping of the memory cells.
Die Aufgabe wird gelöst durch die Merkmalskombinationen des unabhängigen Anspruchs. Die abhängigen Ansprüche zeigen vorteilhafte Ausgestaltungen der Erfindung.The object is achieved by the feature combinations of the independent claim. The dependent claims show advantageous embodiments of the invention.
Somit wird die Aufgabe gelöst durch ein Energiespeichermodul für eine Vorrichtung zur Spannungsversorgung, insbesondere eines Kraftfahrzeugs, aus mehreren prismatischen Speicherzellen, die, zu mindestens einer Reihe gestapelt, hintereinander angeordnet und zwischen zwei Endplatten (auch Druckplatten genannt) über zu mindest zwei gegenüberliegende Zuganker verspannt sind. Die beiden Endplatten weisen jeweils ein erstes Paar an gegenüberliegenden Seiten mit einem ersten Abstand zueinander und ein zweites Paar an gegenüberliegenden Seiten mit einem zweiten Abstand zueinander auf. Der erste Abstand ist dabei kleiner als der zweite Abstand und die zumindest zwei Zuganker sind an den beiden Endplatten jeweils an dem ersten Paar der gegenüberliegenden Seiten angebracht bzw. greifen dort an. Dadurch ist gewährleistet, dass die beiden Angriffspunkte der Zuganker an der jeweiligen Endplatte möglichst geringen Abstand zueinander haben. Infolgedessen ist der zu berücksichtigende Hebelarm gering und die Zuganker können leichter ausgebildet werden bzw. können mehr Druck aushalten.Thus, the object is achieved by an energy storage module for a device for power supply, in particular a motor vehicle, of several prismatic memory cells, stacked to at least one row, arranged one behind the other and clamped between two end plates (also called pressure plates) to at least two opposite tie rods , The two end plates each have a first pair on opposite sides at a first distance from each other and a second pair on opposite sides at a second distance from each other. The first distance is smaller than the second distance and the at least two tie rods are attached to the two end plates in each case on the first pair of opposite sides or attack there. This ensures that the two points of application of the tie rods on the respective end plate have the smallest possible distance from each other. As a result, the lever arm to be considered is small and the tie rods can be made lighter or can withstand more pressure.
Insbesondere befinden sich bei dem Energiespeichermodul alle Anschlussterminals der einzelnen Speicherzellen auf einer Seite, nämlich der Oberseite bzw. Vorderseite. Bei der Konstruktion von Energiespeichermodulen nach dem Stand der Technik erschien es immer als unpraktisch, die Zuganker ebenfalls auf der Oberseite und somit im Bereich der elektrischen Anschlussterminals anzubringen. Deshalb wurden nach dem Stand der Technik die Zuganker in der Regel seitlich des Energiespeichermoduls angebracht. Da jedoch im Laufe der Lebensdauer eines Energiespeichermoduls bis zu 10 KN an Druckkräften auftreten können, wurde erfindungsgemäß erkannt, dass der Angriffspunkt der Zuganker an den Endplatten eine entscheidende Rolle für den maximal zulässigen Innendruck des Energiespeichermoduls darstellt.In particular, in the energy storage module all connection terminals of the individual memory cells are located on one side, namely the top side or front side. In the design of prior art energy storage modules, it has always seemed impractical to mount the tie rods also on the top and thus in the area of the electrical connection terminals. Therefore, the tie rods were usually attached to the side of the energy storage module according to the prior art. However, since up to 10 KN of compressive forces can occur over the life of an energy storage module, it has been recognized according to the invention that the point of application of the tie rods on the end plates is a decisive factor for the maximum permissible internal pressure of the energy storage module.
Besonders bevorzugt ist vorgesehen, dass der erste Abstand höchstens 90%, insbesondere höchstens 75%, insbesondere höchstens 60%, des zweiten Abstands beträgt. Bei diesen Größenverhältnissen kommt die erfindungsgemäße Anordnung der Zuganker bevorzugt zur Anwendung.It is particularly preferably provided that the first distance is at most 90%, in particular at most 75%, in particular at most 60%, of the second distance. With these size ratios, the arrangement of the tie rods according to the invention is preferably used.
Des Weiteren ist bevorzugt vorgesehen, dass die Zuganker mittels einer Schweißverbindung und/oder mittels Fügen durch Umformen mit den Endplatten verbunden sind. Besonders bevorzugt kommt dabei das Durchsetzfügen zur Anwendung. Insbesondere, wenn die beiden Endplatten als Stanzbiegeteile ausgebildet sind, bietet sich das Fügen durch Umformen zur Anbindung der Zuganker an.Furthermore, it is preferably provided that the tie rods are connected by means of a welded joint and / or by means of joining by forming with the end plates. Particularly preferably, the clinching is used. In particular, when the two end plates are formed as stamped and bent parts, the joining by forming offers for connecting the tie rods.
Des Weiteren ist es von Vorteil, dass der einzelne Zuganker aus einem einzigen Blech gefertigt ist. Durch diese einteilige Herstellung können Kosten gespart werden.Furthermore, it is advantageous that the single tie rod is made of a single sheet. By this one-piece production costs can be saved.
In einer weiteren vorteilhaften Ausbildung ist vorgesehen, dass zumindest einer der Zuganker als Wärmeleitblech zum Abführen der Wärme aus den Speicherzellen zu einer Kühleinrichtung ausgebildet ist. Besonders bevorzugt ist vorgesehen, dass die Speicherzellen Anschlussterminals aufweisen, die bei allen Speicherzellen gemeinsam auf einer Vorderseite des Energiespeichermoduls angeordnet sind, wobei dann ein Zuganker an der der Vorderseite gegenüberliegenden Rückseite des Energiespeichermoduls zumindest teilweise anliegt. Insbesondere ist dieser anliegende Kontakt wärmeleitend ausgebildet. In dieser bevorzugten Ausführung wird somit einer der beiden Zuganker zusätzlich als Wärmeleitblech verwendet. Dadurch entfällt ein zusätzliches Wärmeleitblech auf der Rückseite bzw. Unterseite des Energiespeichermoduls. Der als Wärmeleitblech ausgebildete Zuganker hat somit zwei Funktionen: zum einen dient er der Kühlung des Zellmoduls und zum anderen der Verspannung der Speicherzellen.In a further advantageous embodiment, it is provided that at least one of the tie rods is designed as a heat conduction plate for dissipating the heat from the storage cells to a cooling device. It is particularly preferably provided that the memory cells have connection terminals which are arranged in common on all memory cells on a front side of the energy storage module, in which case a tie rod at least partially abuts the rear side of the energy storage module opposite the front side. In particular, this applied contact is formed thermally conductive. In this preferred embodiment, thus one of the two tie rods is additionally as Wärmeleitblech used. This eliminates an additional Wärmeleitblech on the back or bottom of the energy storage module. The tie rod designed as a heat conducting plate thus has two functions: on the one hand, it serves to cool the cell module and, on the other hand, it serves to tension the memory cells.
In weiterer vorteilhafter Ausbildung ist vorgesehen, dass zumindest 10%, insbesondere zumindest 50%, insbesondere zumindest 75%, der Oberfläche der Rückseite des Energiespeichermoduls mit dem als Wärmeleitblech ausgebildeten Zuganker in wärmeleitendem Kontakt steht. Dadurch ist eine ausreichende Abführung der Wärme aus dem Energiespeichermodul gewährleistet.In a further advantageous embodiment, it is provided that at least 10%, in particular at least 50%, in particular at least 75%, of the surface of the rear side of the energy storage module is in heat-conducting contact with the tie rod designed as a heat-conducting sheet. This ensures sufficient dissipation of the heat from the energy storage module.
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Dabei zeigt:The invention will be explained in more detail with reference to the drawing. Showing:
Im Folgenden wird die Erfindung anhand der
In
Da in dem erfindungsgemäßen Energiespeichermodul
Gemäß
Beispielsweise weisen die Zuganker
Die Verbindung zwischen den Zugankern
Wie die
Der untere Zuganker
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- EnergiespeichermodulEnergy storage module
- 1010
- Speicherzellememory cell
- 1111
- Anschlussterminal erster PolaritätConnection terminal of the first polarity
- 1212
- Anschlussterminal zweiter PolaritätConnection terminal of the second polarity
- 1313
- Vorderseitefront
- 1414
- Rückseiteback
- 1515
- Hauptflächemain area
- 1616
- Hauptflächemain area
- 1717
- Stirnseitefront
- 1818
- Stirnseitefront
- 2020
- Klebefolieadhesive film
- 3030
- Endplatteendplate
- 3535
- Endplatteendplate
- 4040
- Zugankertie rods
- 4242
- Zugankertie rods
- 6060
- Speicherzellen-ReiheMemory cell row
- 101–104101-104
- erste bis vierte Seitefirst to fourth page
- A1A1
- erster Abstandfirst distance
- A2A2
- zweiter Abstandsecond distance
- BB
- Breitewidth
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110076578 DE102011076578A1 (en) | 2011-05-27 | 2011-05-27 | Energy storage module for battery of motor car, has end plates comprising two pairs of opposite sides at distances, where one of distances is greater than other distance, and tie rods engage at end plates at one of pairs of opposed sides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110076578 DE102011076578A1 (en) | 2011-05-27 | 2011-05-27 | Energy storage module for battery of motor car, has end plates comprising two pairs of opposite sides at distances, where one of distances is greater than other distance, and tie rods engage at end plates at one of pairs of opposed sides |
Publications (1)
Publication Number | Publication Date |
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DE102011076578A1 true DE102011076578A1 (en) | 2012-11-29 |
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DE201110076578 Withdrawn DE102011076578A1 (en) | 2011-05-27 | 2011-05-27 | Energy storage module for battery of motor car, has end plates comprising two pairs of opposite sides at distances, where one of distances is greater than other distance, and tie rods engage at end plates at one of pairs of opposed sides |
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DE (1) | DE102011076578A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020152020A1 (en) * | 2019-01-21 | 2020-07-30 | Lisa Dräxlmaier GmbH | Method and system for producing a thermal interface in a battery for a motor vehicle |
WO2020212066A1 (en) * | 2019-04-15 | 2020-10-22 | Atlas Copco Ias Gmbh | Method for producing a battery arrangement |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030118898A1 (en) * | 1999-10-08 | 2003-06-26 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US20070015049A1 (en) * | 2002-05-13 | 2007-01-18 | Matsushita Electric Industrial Co., Ltd. | Cooling device for a battery pack and rechargeable battery |
US20070026304A1 (en) * | 2005-07-29 | 2007-02-01 | Yoon-Cheol Jeon | Battery module and restraint rod |
US20070285051A1 (en) * | 2006-06-09 | 2007-12-13 | Yoon-Cheol Jeon | Battery module |
-
2011
- 2011-05-27 DE DE201110076578 patent/DE102011076578A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030118898A1 (en) * | 1999-10-08 | 2003-06-26 | Matsushita Electric Industrial Co., Ltd. | Battery pack |
US20070015049A1 (en) * | 2002-05-13 | 2007-01-18 | Matsushita Electric Industrial Co., Ltd. | Cooling device for a battery pack and rechargeable battery |
US20070026304A1 (en) * | 2005-07-29 | 2007-02-01 | Yoon-Cheol Jeon | Battery module and restraint rod |
US20070285051A1 (en) * | 2006-06-09 | 2007-12-13 | Yoon-Cheol Jeon | Battery module |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020152020A1 (en) * | 2019-01-21 | 2020-07-30 | Lisa Dräxlmaier GmbH | Method and system for producing a thermal interface in a battery for a motor vehicle |
CN113302790A (en) * | 2019-01-21 | 2021-08-24 | 利萨·德雷克塞迈尔有限责任公司 | Method and system for producing a thermal interface in a battery for a motor vehicle |
CN113302790B (en) * | 2019-01-21 | 2023-11-21 | 利萨·德雷克塞迈尔有限责任公司 | Method and system for producing a thermal interface in a battery for a motor vehicle |
WO2020212066A1 (en) * | 2019-04-15 | 2020-10-22 | Atlas Copco Ias Gmbh | Method for producing a battery arrangement |
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