DE102012211653A1 - Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate - Google Patents
Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate Download PDFInfo
- Publication number
- DE102012211653A1 DE102012211653A1 DE201210211653 DE102012211653A DE102012211653A1 DE 102012211653 A1 DE102012211653 A1 DE 102012211653A1 DE 201210211653 DE201210211653 DE 201210211653 DE 102012211653 A DE102012211653 A DE 102012211653A DE 102012211653 A1 DE102012211653 A1 DE 102012211653A1
- Authority
- DE
- Germany
- Prior art keywords
- memory cells
- energy storage
- storage module
- insulating film
- insulation film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims abstract description 20
- 238000010292 electrical insulation Methods 0.000 claims description 2
- 239000002313 adhesive film Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 description 42
- 210000000352 storage cell Anatomy 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M50/262—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
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Adhesive Tapes (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 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, which are stacked one behind the other, at least stacked in a row.
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. Insbesondere in einem Kraftfahrzeug ist der Energiespeicher unterschiedlichsten thermischen Belastungen ausgesetzt. Im Winter muss je nach Einsatzgebiet die extreme Umgebungstemperatur des Fahrzeugs beachtet werden. Im Sommer addiert sich zu der hohen Umgebungstemperatur die Belastung durch die Abgasanlage. Hier kann es durch einen hohen Strahlungseintrag auf Temperaturen bis über 100°C kommen. Lithium-Ionen-Zellen sollen in einem idealen Betriebstemperaturbereich zwischen 20°C und 40°C betrieben werden. Für eine optimale Betriebsstrategie ist insbesondere ein sehr geringer Temperaturunterschied zwischen den einzelnen Zellen des Energiespeichermoduls notwendig. Darüber hinaus soll das Energiespeichermodul und dessen Gehäuse den anspruchsvollen mechanischen Anforderungen im Automobilbereich standhalten.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. In particular, in a motor vehicle, the energy storage is exposed to a variety of thermal loads. In winter, depending on the application, the extreme ambient temperature of the vehicle must be taken into account. In summer, the load on the exhaust system adds up to the high ambient temperature. Here it can come to a temperature of over 100 ° C due to a high radiation input. Lithium-ion cells should be operated in an ideal operating temperature range between 20 ° C and 40 ° C. In particular, a very small temperature difference between the individual cells of the energy storage module is necessary for an optimal operating strategy. In addition, the energy storage module and its housing to withstand the demanding mechanical requirements in the automotive sector.
Es ist Aufgabe vorliegender Erfindung, ein Energiespeichermodul bereitzustellen, das bei kostengünstiger Herstellung und Montage möglichst effizient betrieben werden kann.It is an object of the present invention to provide an energy storage module that can be operated as efficiently as possible at cost-effective production and assembly.
Die Lösung der Aufgabe erfolgt durch den unabhängigen Anspruch 1. Die abhängigen Ansprüche haben bevorzugte Weiterbildungen der Erfindung zum Gegenstand.The object is achieved by the independent claim 1. The dependent claims have preferred developments of the invention to the subject.
Somit wird die Aufgabe gelöst durch ein Energiespeichermodul für eine Vorrichtung zur Spannungsversorgung, vorzugsweise für ein Kraftfahrzeug, umfassend mehrere prismatische Speicherzellen. Die mehreren prismatischen Speicherzellen sind zu mindestens einer Reihe gestapelt, hintereinander angeordnet. Jeweils zwischen zwei benachbarten Speicherzellen wird eine Isolationsfolie eingesetzt. Erfindungsgemäß wird zwischen zwei benachbarten Speicherzellen nur eine Isolationsfolie verwendet. Die Isolationsfolie ist mit einer Seite mit einer ersten Speicherzelle verklebt und ist mit der anderen Seite mit der benachbarten zweiten Speicherzelle verklebt. Die Isolationsfolie dient zur elektrischen Isolation der Speicherzellen untereinander. Entscheidend für den Wirkungsgrad des Energiespeichermoduls ist eine sehr geringe Temperaturspreizung zwischen den einzelnen Speicherzellen. Durch die erfindungsgemäße Verwendung von nur einer Folie zwischen den Speicherzellen, kann die elektrische Isolation äußerst dünn ausgeführt werden. Dies hat wiederum den Vorteil einer sehr guten Wärmeleitung bzw. eines sehr guten Wärmeübergangs zwischen den Speicherzellen. Insbesondere weil die Isolationsfolie mit beiden Speicherzellen verklebt ist, ergibt sich ein sehr guter Wärmeübergang über die Klebestellen und die sehr dünne Isolationsfolie. Im Gegensatz zur herkömmlichen Verwendung von jeweils einer Isolationsfolie pro Seite einer Speicherzelle, was dazu führt, dass zwischen zwei benachbarten Speicherzellen zwei Isolationsfolien angeordnet sind, konnte im Versuch nachgewiesen werden, dass mit der beidseitig verklebten, erfindungsgemäßen Isolationsfolie die Temperaturspreizung zwischen den Speicherzellen um bis zu 25 Prozent reduziert werden kann. Darüber hinaus verbessert die Verklebung der Speicherzellen untereinander auch die mechanischen Eigenschaften des Energiespeichermoduls.Thus, the object is achieved by an energy storage module for a device for power supply, preferably for a motor vehicle, comprising a plurality of prismatic memory cells. The plurality of prismatic memory cells are stacked to at least one row, arranged one behind the other. Between each two adjacent memory cells, an insulating film is used. According to the invention, only one insulation film is used between two adjacent memory cells. The insulating film is glued to one side with a first memory cell and is glued to the other side with the adjacent second memory cell. The insulating film is used for electrical isolation of the memory cells with each other. Decisive for the efficiency of the energy storage module is a very low temperature spread between the individual memory cells. The inventive use of only one film between the memory cells, the electrical insulation can be made extremely thin. This in turn has the advantage of a very good heat conduction or a very good heat transfer between the memory cells. In particular, because the insulating film is bonded to both memory cells, there is a very good heat transfer over the splices and the very thin insulation film. In contrast to the conventional use of one insulation film per side of a memory cell, which results in two insulation foils being arranged between two adjacent memory cells, it could be demonstrated in an experiment that the temperature difference between the memory cells is increased by up to 10% with the insulation film bonded on both sides 25 percent can be reduced. In addition, the bonding of the memory cells with each other also improves the mechanical properties of the energy storage module.
Die Isolationsfolie weist eine erste und eine zweite jeweils zu verklebende Seite auf, wobei die erste Seite mit einer ersten Speicherzelle und die zweite Seite mit einer zu der ersten Speicherzelle benachbarten zweiten Speicherzelle verklebt ist.The insulating film has a first and a second side to be bonded in each case, wherein the first side is glued to a first memory cell and the second side to a second memory cell adjacent to the first memory cell.
Insbesondere ist vorgesehen, dass in dem Energiespeichermodul alle benachbarten Speicherzellen mit jeweils einer beidseitig verklebten Isolationsfolie verbunden sind.In particular, it is provided that in the energy storage module all adjacent memory cells are each connected to an insulating film bonded on both sides.
Für eine kostengünstige und schnelle Montage wird besonders bevorzugt eine doppelseitig selbstklebende Isolationsfolie verwendet.For a cost-effective and fast assembly, a double-sided self-adhesive insulating film is particularly preferably used.
Insbesondere ist die Isolationsfolie höchstens 0,2 mm, vorzugsweise höchstens 0,15 mm, dick.In particular, the insulating film is at most 0.2 mm, preferably at most 0.15 mm, thick.
Die Reihe aus gestapelten Speicherzellen wird vorzugsweise zwischen zwei Endplatten verspannt. Die zwei Endplatten sind über Zuganker miteinander verbunden. Die Verspannungsrichtung steht somit senkrecht zu den Endplatten. Die Isolationsfolien werden parallel zu den Endplatten bzw. senkrecht zur Verspannungsrichtung angeordnet.The series of stacked memory cells is preferably clamped between two end plates. The two end plates are connected by tie rods. The bracing is thus perpendicular to the end plates. The insulation films are arranged parallel to the end plates or perpendicular to the stress direction.
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.The end plates and tie rods are used 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.
Für einen möglichst guten Wärmeübergang zwischen den Speicherzellen ist bevorzugt vorgesehen, dass die Speicherzellen jeweils mit ihrer größten Außenfläche aneinander anliegen. Dementsprechend wird auch auf diese größte Außenfläche die Isolationsfolie aufgeklebt. Besonders bevorzugt wird diese gesamte größte Außenfläche mit einer durchgehenden Isolationsfolie beklebt.For the best possible heat transfer between the memory cells, it is preferably provided that the memory cells abut each other with their largest outer surface. Accordingly, the insulating film is glued to this largest outer surface. Particularly preferably, this entire largest outer surface is covered with a continuous insulating film.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die begleitende Zeichnung im Detail erläutert. Dabei zeigen:Hereinafter, an embodiment of the invention will be explained in detail with reference to the accompanying drawings. Showing:
Jeweils zwischen zwei Speicherzellen
Die doppelseitig selbstklebende Isolationsfolie
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- EnergiespeichermodulEnergy storage module
- 22
- Speicherzellenmemory cells
- 33
- Endplattenendplates
- 44
- Zugankertie rods
- 55
- Oberseitetop
- 66
- Anschlusspoleconnecting poles
- 77
- Größte AußenflächeBiggest outer surface
- 88th
- Isolationsfolieinsulation blanket
- 99
- Reiheline
- FF
- VerspannkraftClamping force
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210211653 DE102012211653A1 (en) | 2012-07-04 | 2012-07-04 | Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210211653 DE102012211653A1 (en) | 2012-07-04 | 2012-07-04 | Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate |
Publications (1)
Publication Number | Publication Date |
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DE102012211653A1 true DE102012211653A1 (en) | 2014-05-22 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE201210211653 Ceased DE102012211653A1 (en) | 2012-07-04 | 2012-07-04 | Energy storage module for power supply device used in motor car, has insulation film whose sides are bonded with adjacent memory cells respectively, and that is arranged parallel to end plate |
Country Status (1)
Country | Link |
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DE (1) | DE102012211653A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109216600A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery modules |
CN109216594A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery unit and battery modules |
WO2022011513A1 (en) * | 2020-07-13 | 2022-01-20 | 威睿电动汽车技术(宁波)有限公司 | Battery module and vehicle |
CN114026737A (en) * | 2019-06-21 | 2022-02-08 | 三星Sdi株式会社 | Battery pack |
DE102022112739A1 (en) | 2022-05-20 | 2023-11-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery cell |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040045597A1 (en) * | 2001-11-12 | 2004-03-11 | Takaaki Kimijima | Electric cell |
JP2006164579A (en) * | 2004-12-03 | 2006-06-22 | Sanyo Electric Co Ltd | Battery pack |
DE102010020065A1 (en) * | 2010-05-11 | 2011-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Energy storage module of several prismatic memory cells and method for producing an energy storage module |
DE102010041143A1 (en) * | 2010-09-21 | 2012-03-22 | Sb Limotive Company Ltd. | Housing for galvanic element |
-
2012
- 2012-07-04 DE DE201210211653 patent/DE102012211653A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040045597A1 (en) * | 2001-11-12 | 2004-03-11 | Takaaki Kimijima | Electric cell |
JP2006164579A (en) * | 2004-12-03 | 2006-06-22 | Sanyo Electric Co Ltd | Battery pack |
DE102010020065A1 (en) * | 2010-05-11 | 2011-11-17 | Bayerische Motoren Werke Aktiengesellschaft | Energy storage module of several prismatic memory cells and method for producing an energy storage module |
DE102010041143A1 (en) * | 2010-09-21 | 2012-03-22 | Sb Limotive Company Ltd. | Housing for galvanic element |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109216600A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery modules |
CN109216594A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Battery unit and battery modules |
CN109216600B (en) * | 2017-06-30 | 2021-09-03 | 比亚迪股份有限公司 | Battery module |
CN114026737A (en) * | 2019-06-21 | 2022-02-08 | 三星Sdi株式会社 | Battery pack |
CN114026737B (en) * | 2019-06-21 | 2023-11-17 | 三星Sdi株式会社 | Battery pack |
US12308454B2 (en) | 2019-06-21 | 2025-05-20 | Samsung Sdi Co., Ltd. | Battery pack |
WO2022011513A1 (en) * | 2020-07-13 | 2022-01-20 | 威睿电动汽车技术(宁波)有限公司 | Battery module and vehicle |
DE102022112739A1 (en) | 2022-05-20 | 2023-11-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery cell |
DE102022112739B4 (en) | 2022-05-20 | 2025-07-10 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery cell |
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