EP3328678A1 - Traktionsbatterie für ein kraftfahrzeug mit einer kühlvorrichtung - Google Patents
Traktionsbatterie für ein kraftfahrzeug mit einer kühlvorrichtungInfo
- Publication number
- EP3328678A1 EP3328678A1 EP16717924.1A EP16717924A EP3328678A1 EP 3328678 A1 EP3328678 A1 EP 3328678A1 EP 16717924 A EP16717924 A EP 16717924A EP 3328678 A1 EP3328678 A1 EP 3328678A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- coolant
- traction battery
- cooling plate
- return
- 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.)
- Withdrawn
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the invention relates to a traction battery for a motor vehicle with a cooling device for temperature control of battery cells, which has at least one cooling plate.
- the thermal management of the traction battery plays an important role.
- the operation of battery cells preferably lithium-ion battery cells, is efficient. Even if the efficiency of these battery arrangements is high, a small amount of heat in the ratio of the transmitted energy must be dissipated, since this heat can damage the battery cells. At an elevated temperature, irreversible degradation reactions can occur within the battery in the battery cells, reducing the life of the battery cells.
- the battery cells should ideally be operated continuously below 40 ° C, which is why a tempering or a
- Cooling device within the battery assembly for larger discharge and charging currents is advantageous.
- Liquid cooling circuit used.
- Cooling channels made of manufacturing and cost reasons in sand casting heat sinks conventional battery modules usually have an undefined internal geometry. This geometry is due to the use of lost sand cores. There is the risk of an uneven coolant or temperature distribution and a poorer heat transfer from the battery cells to be cooled.
- the invention has for its object to provide a powerful cooling of the battery cells with minimal space and manufacturing and cost-effective.
- Patent claim 1 solved.
- the traction battery has a cooling device for temperature control of battery cells, which has at least one cooling plate, wherein the cooling plate is designed as an extruded profile.
- the extruded profiles are advantageously uniform, reproducible Cooling channels formed with a defined surface, which have a much better cooling performance compared to the heat sinks made with sand cores sand lost.
- the traction battery according to the invention can be further developed by the characterizing features of the subclaims, so that the design options are not exhausted.
- An advantageous embodiment of the invention provides that the at least one cooling channel has an approximately rectangular cross-section.
- the cooling plate can be produced so inexpensively, easily and reproducibly.
- the shorter sides of the approximately rectangular cross section at least one cooling channel advantageously have a straight course, so that the production of the geometry can be simple and inexpensive.
- the longer sides of the cooling channel are preferably designed such that they have an approximately wave-shaped course.
- the wave-shaped profile of the cross section, comprising wave crests and wave troughs, on the longer sides of the cooling channel provides for an enlarged surface, so that the largest possible area for the heat transfer between the coolant flow and the cooling plate is available.
- the cooling channel has on its longer sides in each case a plurality of wave crests and wave troughs, which are configured such that the wave crest of the first longer side lies exactly opposite the wave trough of the second longer side.
- the resulting cross-section is similar to a concertina, since the width of the cooling channel changes, which changes steadily between a narrower and wider width.
- the cooling plate has two separate coolant connections, one of the coolant connections serving for one coolant inlet and the other coolant connection serving for a coolant outlet.
- the coolant connection for the coolant inlet is preferably arranged above the coolant connection for the coolant outlet.
- the coolant introduced via the coolant inlet for the coolant inlet can be supported by gravity from the coolant connection for the coolant outlet
- the cooling plate on a cooling channel for the inlet of the coolant and a plurality of cooling channels for the return of the coolant, whereby the entire cooling plate of
- Coolant can be flowed through.
- the coolant connections are space-optimized arranged in the upper region, which connected thereto coolant lines can be made shorter and thus cheaper.
- the coolant connection for the coolant outlet opens in a funnel shape in the direction of the cooling channels for the return, so that all three
- Cooling channels for the return from the coolant connection for the coolant outlet are detected.
- the cooling channel for the inlet has a larger cross section than each of the cooling channels for the return, wherein e.g. the sum of the cross-sectional areas of the cooling channels for the return corresponds approximately to the cross-sectional area of the cooling channel for the inlet.
- Cross-sectional areas of the cooling channels for the return are, for example, substantially the same size and have the same geometry, so that almost identical flow velocities prevail in the cooling channels.
- the resulting heat transfer is very homogeneous over the entire cooling surface. This results in a particularly uniform distribution of
- Coolant flow so that the supplied coolant has a constant pressure.
- the cooling channel for the inlet and the cooling channels for the return on the coolant connections facing away from the end face of the cooling plate are connected to each other, so that the coolant can flow in a defined direction through the cooling plate.
- the cooling plates are preferably made of aluminum or an aluminum alloy.
- Aluminum has a very good thermal conductivity, making it a good and faster
- Fig. 1 shows an embodiment of a traction battery according to the invention with a
- Cooling device in assembly with two battery cell modules
- Figure 2 is a section along the Y-axis through the embodiment in Fig. 1.
- the traction battery 1 according to FIG. 1 has two cell modules 3, which each have two
- a cooling device 8 is arranged, which is preferably designed as a cooling plate 9.
- the cooling plate 9 has two coolant connections 12, 13 at one of its end faces 11, the upper coolant connection 12, seen in the Z direction, being a coolant inlet and the lower coolant connection 13, seen in the Z direction, serving for a coolant outlet.
- the coolant connections 12, 13 have the same round cross-sectional geometry.
- the cell modules 3, the connector 5 and the cooling plate 9 are screwed together by means of connecting elements 15 and clamped.
- the connecting elements 15 consist of a guided through the cell modules 3, the connector 5 and the cooling plate 9 screw and a one-sided welded to one of the connector 5 screw nut.
- Fig. 2 shows the inventive arrangement of Fig. 1 in a section in the Y direction.
- the cooling plate 9 is arranged between the cell modules 3.
- a thermal conductive layer 18 which is preferably designed as a thermally conductive film, arranged, which serves the better heat exchange between the cooling plate 9 and cell module 3.
- the cooling plate 9 has, for example, a cooling channel for the inlet 20 of the coolant, which has a geometrically larger cross section, and three cooling channels for the return 22, which have a geometrically smaller cross section on. Both the cooling channel for the inlet 20 and the cooling channels for the return 22 have an approximately rectangular cross-section, which is explained in more detail with reference to FIG. 2a.
- Fig. 2a shows a cross-section according to the invention of the cooling channel for the inlet 20, which is substantially rectangular, wherein two shorter sides 24, which extend in the Y direction, have a straight course and are parallel to each other.
- Two Z-directional longer sides 26, 27 of approximately rectangular cross-section have a wave form with multiple crests 28 and troughs 29.
- the wave crests 28 have geometrically the same maximum and the wave troughs 29 geometrically the same minimum, as seen in the Y direction each wave peaks and all wave troughs are at the same height.
- the wave crests 28 and wave troughs 29 are arranged such that in each case a wave crest 28 of the first longer side 26 lies exactly opposite a wave trough 29 of the second longer side 27, so that the cross section along the Z axis resembles an accordion.
- the cross section thus changes along the Z axis, becoming narrower and wider.
- the channel geometry of the cooling channel for the inlet 20 is also found in a similar form to the cooling channels for the return 22, wherein the cooling channels for the return 22 each have the same maxima of the peaks 28 and minima of the troughs 29, but in Z- Seen in the direction are each made shorter, so that the overall result is a reduced cross-sectional area of each of the cooling channels for the return 22 in comparison with the cooling channel for the inlet 20.
- the cooling plate 9 is designed in the XZ plane at its seen in the Z direction upper and lower area in the depth (in the Y direction) with a smaller wall thickness and has in a bore 32 at each of its four corners. Through these holes 32, the screws of the connecting elements 15 are guided.
- the cooling plate 9 On the coolant ports 12, 13 facing away from the end face of the cooling plate 9, the cooling channel for the inlet 20 with all cooling channels for the return 22 via a connecting line 30 are connected ,
- the cooling plate 9 has at the coolant connections 12, 13 having end face 1 1 a coupling line 31.
- the coupling line 31 connects the cooling channels for the return 22 to each other.
- the coupling line 31 is connected over its entire length extending in the Z direction with the coolant connection for the coolant outlet 13, wherein the tubular geometry of the coolant connection for the coolant outlet 13 in
- the coolant connection for the coolant inlet 12 also opens like a funnel in the direction of the cooling channel for the inlet 20, since the cross section between the coolant connection for the coolant inlet 12 and the cooling channel for the inlet 20 changes.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015214661.8A DE102015214661A1 (de) | 2015-07-31 | 2015-07-31 | Traktionsbatterie für ein Kraftfahrzeug mit einer Kühlvorrichtung |
PCT/EP2016/058857 WO2017021018A1 (de) | 2015-07-31 | 2016-04-21 | Traktionsbatterie für ein kraftfahrzeug mit einer kühlvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3328678A1 true EP3328678A1 (de) | 2018-06-06 |
Family
ID=55806341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16717924.1A Withdrawn EP3328678A1 (de) | 2015-07-31 | 2016-04-21 | Traktionsbatterie für ein kraftfahrzeug mit einer kühlvorrichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3328678A1 (de) |
CN (1) | CN107848436A (de) |
DE (1) | DE102015214661A1 (de) |
WO (1) | WO2017021018A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017204194B4 (de) | 2017-03-14 | 2020-08-27 | Bayerische Motoren Werke Aktiengesellschaft | Energiespeicher mit Kühlvorrichtung und Kraftfahrzeug mit einem Energiespeicher |
DE102017204763A1 (de) * | 2017-03-22 | 2018-09-27 | Bayerische Motoren Werke Aktiengesellschaft | Hochvoltspeicher |
EP3386001B1 (de) | 2017-04-03 | 2022-11-23 | hofer powertrain innovation GmbH | Traktionsakkumulator länglicher bauart mit benachbart zueinander angeordneten elektrochemischen sekundärzellen und verfahren zur kontrolle des wärmehaushalts |
DE202017101961U1 (de) | 2017-04-03 | 2018-07-04 | Hofer Mechatronik Gmbh | Traktionsakkumulator, insbesondere länglicher Bauart mit benachbart angeordneten Lithium-Ionen-Sekundärzellen |
CN110197935B (zh) | 2018-02-27 | 2021-11-12 | 格朗吉斯铝业(上海)有限公司 | 一种用于电池模组的水冷板 |
DE102018115791B4 (de) * | 2018-06-29 | 2022-05-05 | Webasto SE | Temperierungselement zum Temperieren eines elektrischen Energiespeichers |
DE102020114313B4 (de) | 2020-05-28 | 2022-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Batteriemodulgehäuse mit integrierten Kühlmittelkanälen, Kraftfahrzeug |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4308515B2 (ja) * | 2002-12-27 | 2009-08-05 | パナソニック株式会社 | 電池モジュール |
KR100599776B1 (ko) * | 2004-05-25 | 2006-07-13 | 삼성에스디아이 주식회사 | 연료 전지 시스템 및 그 스택 |
KR100669414B1 (ko) * | 2004-11-30 | 2007-01-15 | 삼성에스디아이 주식회사 | 전지 모듈과 전지 모듈의 격벽 |
DE102008027293A1 (de) * | 2008-06-06 | 2009-12-10 | Behr Gmbh & Co. Kg | Vorrichtung zur Kühlung einer Fahrzeugbatterie |
DE102010027765B4 (de) * | 2010-04-15 | 2023-10-12 | Robert Bosch Gmbh | Kühleinrichtung zur Kühlung von Bauteilen |
KR101205180B1 (ko) * | 2010-05-18 | 2012-11-27 | 주식회사 엘지화학 | 콤팩트하고 안정성이 우수한 냉각부재와 이를 포함하는 전지모듈 |
KR101205181B1 (ko) * | 2010-05-18 | 2012-11-27 | 주식회사 엘지화학 | 신규한 구조의 냉각부재와 이를 포함하는 전지모듈 |
DE102012218082A1 (de) * | 2012-10-04 | 2014-04-10 | Continental Automotive Gmbh | Trägerelement für eine elektrische Energiespeicherzelle mit Kühlkanälen mit einem nicht kreisförmigen Querschnitt, elektrischer Energiespeicher und Herstellverfahren für ein Trägerelement |
DE102013201102A1 (de) * | 2013-01-24 | 2014-08-07 | Robert Bosch Gmbh | Vorrichtung zur Temperierung von Batteriezellen |
DE102013011692A1 (de) * | 2013-07-12 | 2015-01-29 | Daimler Ag | Energiespeichervorrichtung mit einer Temperiervorrichtung, Verfahren zum Herstellen der Energiespeichervorrichtung |
-
2015
- 2015-07-31 DE DE102015214661.8A patent/DE102015214661A1/de not_active Withdrawn
-
2016
- 2016-04-21 CN CN201680045759.9A patent/CN107848436A/zh active Pending
- 2016-04-21 EP EP16717924.1A patent/EP3328678A1/de not_active Withdrawn
- 2016-04-21 WO PCT/EP2016/058857 patent/WO2017021018A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102015214661A1 (de) | 2017-02-02 |
CN107848436A (zh) | 2018-03-27 |
WO2017021018A1 (de) | 2017-02-09 |
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Ipc: H01M 10/613 20140101ALI20190410BHEP Ipc: H01M 10/625 20140101ALI20190410BHEP Ipc: B60L 58/26 20190101ALI20190410BHEP Ipc: H01M 10/6557 20140101AFI20190410BHEP Ipc: B60L 50/64 20190101ALI20190410BHEP Ipc: H01M 10/617 20140101ALI20190410BHEP |
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