DE102013006758A1 - Battery assembly and method of operating a battery assembly - Google Patents
Battery assembly and method of operating a battery assembly Download PDFInfo
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- DE102013006758A1 DE102013006758A1 DE201310006758 DE102013006758A DE102013006758A1 DE 102013006758 A1 DE102013006758 A1 DE 102013006758A1 DE 201310006758 DE201310006758 DE 201310006758 DE 102013006758 A DE102013006758 A DE 102013006758A DE 102013006758 A1 DE102013006758 A1 DE 102013006758A1
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- battery
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000011261 inert gas Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 38
- 239000001569 carbon dioxide Substances 0.000 claims description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 19
- 230000004044 response Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed 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
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
-
- 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
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/579—Devices or arrangements for the interruption of current in response to shock
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Die Erfindung betrifft eine Batterieanordnung (10) mit einem Batteriegehäuse (16), in welchem eine Mehrzahl von Batteriezellen (14) angeordnet sind. Die Batteriezellen (14) dienen dem Bereitstellen von elektrischer Energie für einen Antrieb eines Fahrzeugs. Ein Speicher (18) enthält ein Inertgas und ist mit dem Batteriegehäuse (16) verbunden. Eine Steuerungseinrichtung (26) ist mit wenigstens einem Sensor (28) gekoppelt, mittels welchem eine unfallbedingte Kraftbeaufschlagung des Fahrzeugs erfassbar ist. Die Steuerungseinrichtung (26) ist dazu ausgelegt, in Abhängigkeit von einem Signal des wenigstens einen Sensors (28) das Einbringen des Inertgases in das Batteriegehäuse (16) zu bewirken. Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer solchen Batterieanordnung (10).The invention relates to a battery arrangement (10) with a battery housing (16) in which a plurality of battery cells (14) are arranged. The battery cells (14) are used to provide electrical energy for driving a vehicle. A memory (18) contains an inert gas and is connected to the battery housing (16). A control device (26) is coupled to at least one sensor (28), by means of which an accidental application of force to the vehicle can be detected. The control device (26) is designed to effect the introduction of the inert gas into the battery housing (16) as a function of a signal from the at least one sensor (28). The invention also relates to a method for operating such a battery arrangement (10).
Description
Die Erfindung betrifft eine Batterieanordnung mit einem Batteriegehäuse, in welchem eine Mehrzahl von Batteriezellen angeordnet sind. Die Batteriezellen dienen dem Bereitstellen von elektrischer Energie für einen Antrieb eines Fahrzeugs. Die Batterieanordnung umfasst einen Speicher, welcher wenigstens ein Inertgas enthält. Der Speicher ist mit dem Batteriegehäuse verbunden. Mittels einer Steuerungseinrichtung der Batterieanordnung ist ein Einbringen des Inertgases in das Batteriegehäuse bewirkbar. Des Weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer solchen Batterieanordnung.The invention relates to a battery arrangement with a battery housing, in which a plurality of battery cells are arranged. The battery cells serve to provide electrical energy for driving a vehicle. The battery assembly comprises a reservoir containing at least one inert gas. The memory is connected to the battery case. By means of a control device of the battery arrangement, introduction of the inert gas into the battery housing can be effected. Furthermore, the invention relates to a method for operating such a battery arrangement.
Die
Die
Als nachteilig ist hierbei der Umstand anzusehen, dass weiterhin Situationen auftreten können, in denen es zu einem Brand der Batterie kommen kann.A disadvantage here is the fact that further situations may occur in which it can lead to a fire of the battery.
Aufgabe der vorliegenden Erfindung ist es daher, eine Batterieanordnung der eingangs genannten Art sowie ein Verfahren zum Betreiben einer solchen Batterieanordnung zu schaffen, bei welchem bzw. bei welcher auf verbesserte Weise ein Brand vermeidbar ist.Object of the present invention is therefore to provide a battery assembly of the type mentioned above and a method for operating such a battery assembly, in which or in which in an improved way a fire is avoidable.
Diese Aufgabe wird durch eine Batterieanordnung mit den Merkmalen des Patentanspruchs 1 und durch ein Verfahren mit den Merkmalen des Patentanspruchs 7 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den abhängigen Patentansprüchen angegeben.This object is achieved by a battery arrangement having the features of patent claim 1 and by a method having the features of patent claim 7. Advantageous embodiments with expedient developments of the invention are specified in the dependent claims.
Bei der erfindungsgemäßen Batterieanordnung ist die Steuerungseinrichtung mit wenigstens einem Sensor gekoppelt, mittels welchem eine unfallbedingte Kraftbeaufschlagung des Fahrzeugs erfassbar ist. Die Steuerungseinrichtung ist dazu ausgelegt, in Abhängigkeit von einem Signal des wenigstens einen Sensors das Einbringen des Inertgases in das Batteriegehäuse zu bewirken. Dem liegt die Erkenntnis zu Grunde, dass es bei einem Unfall des Fahrzeugs zu einer mechanischen Beschädigung der Batteriezellen in dem Batteriegehäuse kommen kann. Hierbei kann dann Elektrolyt aus den Batteriezellen austreten und mit Luftsauerstoff ein zündfähiges Gemisch bilden. Bei dem Unfall und einem damit einhergehenden Losrütteln von Komponenten der Batterieanordnung kann auch es zu einem elektrischen Kurzschluss kommen. Aufgrund eines solchen Kurzschlusses kann dann in der Batterie ein Brand entstehen. Ein Grund dafür kann das Austreten des Elektrolyten aus undicht gewordenen Batteriezellen sein.In the case of the battery arrangement according to the invention, the control device is coupled to at least one sensor, by means of which an accident-induced application of force to the vehicle can be detected. The control device is designed to effect the introduction of the inert gas into the battery housing as a function of a signal of the at least one sensor. This is based on the knowledge that, in the event of an accident of the vehicle, mechanical damage to the battery cells in the battery housing can occur. In this case, electrolyte can then emerge from the battery cells and form an ignitable mixture with atmospheric oxygen. In the accident and a concomitant loose shaking of components of the battery assembly can also lead to an electrical short circuit. Due to such a short circuit, a fire can then occur in the battery. One reason for this may be the leakage of the electrolyte from leaking battery cells.
Der Kurzschlussstrom kann jedoch auch für eine Elektrolyse von Wasser sorgen, welches aus einem Kühlmittel stammt. Kühlmittel zum Kühlen der Batteriezellen enthalten nämlich üblicherweise neben Glykol oder dergleichen Zusätzen Wasser. Wenn also aufgrund einer Undichtigkeit in einem Flüssigkeits-Kühlsystem der Batterieanordnung Kühlmittel in das Batteriegehäuse gelangt, so kann in Verbindung mit dem dort vorliegenden elektrischen Potenzial die Elektrolyse stattfinden. Das bei der Elektrolyse entstehende Wasserstoffgas kann ebenfalls durch einen Funken in Brand geraten.However, the short-circuit current can also provide for an electrolysis of water, which comes from a coolant. Namely, coolant for cooling the battery cells usually contain water besides glycol or the like. Thus, if due to a leak in a liquid cooling system of the battery assembly coolant enters the battery housing, so in conjunction with the electrical potential present there electrolysis can take place. The hydrogen gas produced during the electrolysis can also catch fire due to a spark.
Wenn in Folge einer mechanischen Verformung von Stromschienen von Stapeln der Batteriezellen oder der Verformung von Kontaktfahnen der einzelnen Batteriezellen ein Kurzschluss entsteht, so kann dieser eine Zündquelle liefern. Dadurch kann die Batterie in Brand geraten.If, as a result of a mechanical deformation of busbars of stacks of the battery cells or the deformation of contact lugs of the individual battery cells, a short circuit, so this can provide a source of ignition. This may cause the battery to catch fire.
Vorliegend ist jedoch die Steuerungseinrichtung dazu ausgelegt, dann, wenn sich ein Unfall ereignet oder zu ereignen droht, dafür zu sorgen, dass das Inertgas in das Batteriegehäuse eingebracht wird. Der wenigstens eine Sensor kann hierbei beispielsweise als Beschleunigungssensor ausgebildet sein, welcher eine abrupte Verzögerung des Fahrzeugs erfasst. Zusätzlich oder alternativ können Drucksensoren zum Einsatz kommen und/oder Sensoren, welche einen Unfall aufgrund von Körperschalländerungen von sich beim Aufprall verformenden Komponenten des Fahrzeugs detektieren. Vorliegend wird dann das Batteriegehäuse mit dem Inertgas geflutet und das dort gegebenenfalls vorliegende brennbare Gasgemisch verdrängt. Da das nicht von Batteriezellen oder weiteren Komponenten eingenommene Volumen, also das freie Volumen im Batteriegehäuse relativ gering ist, reicht eine geringe Menge an Inertgas aus, um das Batteriegehäuse zu spülen.In the present case, however, the control device is designed to ensure, when an accident occurs or threatens to occur, to ensure that the inert gas is introduced into the battery case. The at least one sensor may in this case be designed, for example, as an acceleration sensor which detects an abrupt deceleration of the vehicle. Additionally or alternatively, pressure sensors may be used and / or sensors which detect an accident due to structure-borne sound changes of impact-deforming components of the vehicle. In the present case, the battery housing is then flooded with the inert gas and the possibly present there combustible gas mixture displaced. Since the volume not occupied by battery cells or other components, ie the free volume in the battery housing, is relatively small, a small amount is sufficient Amount of inert gas to flush the battery case.
Durch das Einbringen des Inertgases in das Batteriegehäuse kann ein thermisches Ereignis wie ein Brand vermieden oder zumindest verzögert werden, welcher bei einer massiven Beschädigung der Batterie ansonsten zu befürchten wäre.By introducing the inert gas into the battery case, a thermal event such as a fire can be avoided or at least delayed, which would otherwise be feared in a massive damage to the battery.
In einer vorteilhaften Ausgestaltung ist der Speicher als Kohlendioxidpatrone ausgebildet. Eine solche Kohlendioxidpatrone, wie sie beispielsweise zum Beaufschlagen von Getränken mit Kohlendioxid eingesetzt wird, ist leicht und kostengünstig verfügbar. Durch die Flutung des Batteriegehäuses mit dem Kohlendioxid wird Sauerstoff verdrängt, und zudem wird die Batterie durch die Expansion des Kohlendioxidgases gekühlt. So wird eine Verbrennung unterbunden.In an advantageous embodiment of the memory is designed as a carbon dioxide cartridge. Such a carbon dioxide cartridge, as used for example to treat drinks with carbon dioxide, is easily and inexpensively available. By flooding the battery case with the carbon dioxide, oxygen is displaced, and moreover, the battery is cooled by the expansion of the carbon dioxide gas. This prevents combustion.
Als weiter vorteilhaft hat es sich gezeigt, wenn an dem Speicher und/oder in einer den Speicher mit dem Batteriegehäuse verbindenden Leitung wenigstens ein Ventilelement angeordnet ist, welches in eine Offenstellung verbringbar ist, in welcher das Inertgas in das Batteriegehäuse einbringbar ist. Durch das Vorsehen eines solchen Ventilelements kann sichergestellt werden, dass lediglich so viel Inertgas in das Batteriegehäuse eingebracht wird, wie dies für die Vermeidung des Brands notwendig ist.As further advantageous, it has been shown, if at least one valve element is arranged on the memory and / or in a memory connecting the battery housing with the battery housing, which can be brought into an open position in which the inert gas can be introduced into the battery housing. By providing such a valve element can be ensured that only as much inert gas is introduced into the battery case, as is necessary for the prevention of the fire.
Als weiter vorteilhaft hat es sich gezeigt, wenn mittels der Steuerungseinrichtung das Einbringen des Inertgases in das Batteriegehäuse derart einstellbar ist, dass ein vorgebbarer Schwellenwert eines Innendrucks im Batteriegehäuse unterschritten bleibt.As further advantageous, it has been shown that by means of the control device, the introduction of the inert gas into the battery housing is adjustable such that a predeterminable threshold value of an internal pressure in the battery housing remains below.
So kann verhindert werden, dass es beim Fluten mit dem Inertgas zu einem unkontrollierten Bersten des Batteriegehäuses kommt.Thus it can be prevented that it comes when flooding with the inert gas to an uncontrolled bursting of the battery case.
Üblicherweise ist im Batteriegehäuse ein Berstschutz vorgesehen, etwa in Form von federbeaufschlagten Berstscheiben, welche ein Ablassen von Überdruck aus dem Batteriegehäuse ermöglichen. Bei der genannten Ausgestaltung ermöglicht es nun die Steuerungseinrichtung, das Inertgas ausreichend langsam in das Batteriegehäuse eintreten zu lassen, so dass über die Berstöffnungen das aus dem Batteriegehäuse verdrängte Gas kontrolliert abgegeben werden kann.Typically, a burst protection is provided in the battery case, such as in the form of spring-loaded rupture discs, which allow a release of excess pressure from the battery case. In the aforementioned embodiment, it is now possible for the control device to allow the inert gas to enter the battery housing sufficiently slowly so that the gas displaced from the battery housing can be emitted in a controlled manner via the burst openings.
Als weiter vorteilhaft hat es sich gezeigt, wenn das Batteriegehäuse in einem in der Einbaulage im Fahrzeug oberen Bereich wenigstens eine Sollbruchstelle aufweist, welche zum Nachgeben bei der unfallbedingten Kraftbeaufschlagung ausgelegt ist. Sollbruchstellen können hierbei insbesondere im Bereich eines Deckels des Batteriegehäuses vorgesehen sein. Wenn nämlich das Batteriegehäuse lediglich im oberen Bereich bricht und im unteren Bereich intakt bleibt, so kann sichergestellt werden, dass sich das Inertgas im unteren Bereich sammeln und so über einen besonders langen Zeitraum wirken kann.As a further advantage, it has been shown that the battery case has at least one predetermined breaking point in an upper region in the installed position in the vehicle, which is designed for yielding in the accidental application of force. Predetermined breaking points can in this case be provided in particular in the region of a cover of the battery housing. If, in fact, the battery casing breaks only in the upper region and remains intact in the lower region, then it can be ensured that the inert gas can collect in the lower region and thus act over a particularly long period of time.
Dies gilt insbesondere, wenn als Inertgas Kohlendioxid vorgesehen ist, welches schwerer ist als atmosphärische Luft. Das Ansammeln des Inertgases im unteren Bereich des Batteriegehäuses kann auch durch eine entsprechende geometrische Auslegung des Batteriegehäuses sichergestellt werden.This is especially true when carbon dioxide is provided as the inert gas, which is heavier than atmospheric air. The accumulation of the inert gas in the lower region of the battery case can also be ensured by a corresponding geometric design of the battery case.
Schließlich hat es sich als vorteilhaft gezeigt, wenn die Steuerungseinrichtung mit wenigstens einem weiteren Sensor gekoppelt ist, mittels welchem eine Feuchtigkeit im Batteriegehäuse erfassbar ist. Hierbei ist die Steuerungseinrichtung dazu ausgelegt, in Abhängigkeit von einem Signal des wenigstens einen weiteren Sensors das Einbringen des Inertgases in das Batteriegehäuse zu bewirken. Über einen Feuchtesensor kann nämlich auf das Vorliegen einer, insbesondere unfallbedingten, Beschädigung einer Kühlmittelleitung rückgeschlossen werden. Bei einer solchen Beschädigung und dem damit einhergehenden Austreten von Kühlmittel in das Batteriegehäuse kann es aufgrund elektrolytischer Vorgänge zur Bildung von Wasserstoffgas kommen, welches durch einen Funken entzündet werden kann.Finally, it has proven to be advantageous if the control device is coupled to at least one further sensor, by means of which a moisture in the battery housing can be detected. In this case, the control device is designed to effect the introduction of the inert gas into the battery housing as a function of a signal of the at least one further sensor. A moisture sensor can in fact be deduced the existence of a, in particular accidental, damage to a coolant line. In such a damage and the concomitant leakage of coolant into the battery case may be due to electrolytic processes to form hydrogen gas, which can be ignited by a spark.
Durch Auswerten der Signale des wenigstens einen Feuchtesensors und entsprechendes Beaufschlagen des Batteriegehäuses mit dem Inertgas kann somit besonders sicher ein Brand vermieden werden.By evaluating the signals of the at least one humidity sensor and corresponding loading of the battery housing with the inert gas thus a fire can be avoided particularly safe.
Die Batterieanordnung kann auch ausschließlich den wenigstens einen zum Erfassen von Feuchtigkeit im Batteriegehäuse ausgebildeten Sensor umfassen, oder es kann zusätzlich zu einem Feuchtesensor der wenigstens eine zum Erfassen einer unfallbedingten Kraftbeaufschlagung des Fahrzeugs ausgelegte Sensor vorgesehen sein.The battery arrangement can also exclusively comprise the at least one sensor designed to detect moisture in the battery housing, or it can be provided in addition to a humidity sensor, the at least one designed for detecting an accidental application of force to the vehicle sensor.
Des Weiteren können auch Temperatursensoren zum Einsatz kommen, um anhand der Signale dieser Sensoren das Beaufschlagen des Batteriegehäuses mit dem Inertgas zu bewirken.Furthermore, temperature sensors can also be used in order to effect the application of the signals of these sensors to subject the battery housing to the inert gas.
Bei dem erfindungsgemäßen Verfahren zum Betreiben einer Batterieanordnung stellen eine Mehrzahl von in einem Batteriegehäuse angeordneten Batteriezellen elektrische Energie für einen Antrieb eines Fahrzeugs bereit. Mittels einer Steuerungseinrichtung wird ein Einbringen von Inertgas in das Batteriegehäuse bewirkt, wobei das Inertgas in einem Speicher der Batterieanordnung gespeichert ist. Mittels wenigstens eines Sensors wird eine unfallbedingte Kraftbeaufschlagung des Fahrzeugs erfasst. Der Steuerungseinrichtung wird ein die unfallbedingte Kraftbeaufschlagung angebendes Signal übermittelt, wobei in Abhängigkeit von dem Signal das Einbringen des Inertgases in das Batteriegehäuse bewirkt wird. Durch ein solches Verfahren lässt sich auf besonders zuverlässige Art und Weise ein Brand vermeiden.In the method according to the invention for operating a battery arrangement, a plurality of battery cells arranged in a battery housing provide electrical energy for driving a vehicle. By means of a control device, an introduction of inert gas is effected in the battery case, wherein the inert gas is stored in a memory of the battery assembly. By means of at least one sensor, an accidental application of force to the vehicle is detected. The controller is the one transmitted signal due to accidental force application, wherein in response to the signal, the introduction of the inert gas is effected in the battery case. Such a method makes it possible to avoid a fire in a particularly reliable manner.
Die für die erfindungsgemäße Batterieanordnung beschriebenen Vorteile und bevorzugten Ausführungsformen gelten auch für das erfindungsgemäße Verfahren und umgekehrt.The advantages and preferred embodiments described for the battery arrangement according to the invention also apply to the method according to the invention and vice versa.
Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in der Figur alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen.The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the figure description and / or shown alone in the figure can be used not only in the respectively specified combination, but also in other combinations or in isolation, without the scope of To leave invention.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Ansprüchen, der nachfolgenden Beschreibung bevorzugter Ausführungsformen sowie anhand der Zeichnung.Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and from the drawing.
Diese zeigt stark schematisiert eine Batterieanordnung, mittels welcher sich ein Brand einer Hochvoltbatterie eines Fahrzeugs vermeiden lässt.This shows very schematically a battery arrangement by means of which a fire of a high-voltage battery of a vehicle can be avoided.
Eine in der Figur gezeigte Batterieanordnung
Bei einer mechanischen Beschädigung der Hochvoltbatterie
Zudem kann es aufgrund des elektrischen Potenzials der Batteriezellen
Dies wird vorliegend unterbunden, da aus einer Kohlendioxidpatrone
In der Leitung
Zur Ansteuerung des Ventils
Zusätzlich oder alternativ kann als der Sensor
Es können auch sowohl die Signale von Crash-Sensoren als auch von wenigstens einem in dem Batteriegehäuse
Die Kohlendioxidpatrone
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- Batterieanordnungbattery assembly
- 1212
- HochvoltbatterieHigh-voltage battery
- 1414
- Batteriezellebattery cell
- 1616
- Batteriegehäusebattery case
- 1818
- Kohlendioxidpatronecarbon dioxide cartridge
- 2020
- Leitungmanagement
- 22 22
- Zwischenraumgap
- 2424
- VentilValve
- 2626
- Steuergerätcontrol unit
- 2828
- Sensorsensor
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 2011/0189511 A1 [0002] US 2011/0189511 A1 [0002]
- DE 102011008792 A1 [0003] DE 102011008792 A1 [0003]
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310006758 DE102013006758A1 (en) | 2013-04-19 | 2013-04-19 | Battery assembly and method of operating a battery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310006758 DE102013006758A1 (en) | 2013-04-19 | 2013-04-19 | Battery assembly and method of operating a battery assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102013006758A1 true DE102013006758A1 (en) | 2014-10-23 |
Family
ID=51628685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE201310006758 Withdrawn DE102013006758A1 (en) | 2013-04-19 | 2013-04-19 | Battery assembly and method of operating a battery assembly |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102013006758A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016111230A1 (en) * | 2016-06-20 | 2017-12-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Deformable protective cover for securing at least one control component of a battery of a vehicle in the event of an impact |
| CN110481375A (en) * | 2019-08-08 | 2019-11-22 | 宿州市艾尔新能源有限公司 | A kind of power & environment supervision device of energy-storage box |
| WO2021142812A1 (en) * | 2020-01-17 | 2021-07-22 | 华为技术有限公司 | Battery system and fire extinguishing method for battery system |
| DE102020118077A1 (en) | 2020-07-09 | 2022-01-13 | Bayerische Motoren Werke Aktiengesellschaft | Traction battery with overheating prevention device and motor vehicle |
| WO2023020830A1 (en) * | 2021-08-17 | 2023-02-23 | Stotz Im- und Export GmbH | Extinguishing a vehicle, in particular an electric vehicle |
| DE102021129086A1 (en) | 2021-08-17 | 2023-02-23 | Stotz Im- und Export GmbH | Deleting a vehicle, in particular an electric vehicle |
| DE102022103877A1 (en) | 2022-02-18 | 2023-08-24 | Audi Aktiengesellschaft | Battery housing arrangement, energy storage and method for counteracting a battery fire |
| CN117554838A (en) * | 2024-01-11 | 2024-02-13 | 深圳市百耐信科技有限公司 | Industrial and commercial liquid cooling energy storage battery equipment and control system |
| EP4320671A4 (en) * | 2021-04-09 | 2025-07-09 | Brunswick Corp | Marine battery safety system and method |
| EP4550520A4 (en) * | 2023-06-08 | 2025-11-05 | Lg Energy Solution Ltd | BATTERY PACK AND VEHICLE WITH IT |
| EP4672419A4 (en) * | 2023-06-09 | 2026-01-28 | Lg Energy Solution Ltd | BATTERY PACK AND VEHICLE WITH IT |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110189511A1 (en) | 2010-02-03 | 2011-08-04 | Jihyoung Yoon | Battery system and driving method thereof |
| DE102011008792A1 (en) | 2011-01-18 | 2012-07-19 | Li-Tec Battery Gmbh | Battery of a plurality of electrochemical energy storage |
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2013
- 2013-04-19 DE DE201310006758 patent/DE102013006758A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110189511A1 (en) | 2010-02-03 | 2011-08-04 | Jihyoung Yoon | Battery system and driving method thereof |
| DE102011008792A1 (en) | 2011-01-18 | 2012-07-19 | Li-Tec Battery Gmbh | Battery of a plurality of electrochemical energy storage |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016111230A1 (en) * | 2016-06-20 | 2017-12-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Deformable protective cover for securing at least one control component of a battery of a vehicle in the event of an impact |
| CN110481375B (en) * | 2019-08-08 | 2024-03-12 | 宿州市艾尔新能源有限公司 | Movable ring monitoring device of energy storage box |
| CN110481375A (en) * | 2019-08-08 | 2019-11-22 | 宿州市艾尔新能源有限公司 | A kind of power & environment supervision device of energy-storage box |
| WO2021142812A1 (en) * | 2020-01-17 | 2021-07-22 | 华为技术有限公司 | Battery system and fire extinguishing method for battery system |
| CN114761091A (en) * | 2020-01-17 | 2022-07-15 | 华为数字能源技术有限公司 | Battery system and fire extinguishing method of battery system |
| DE102020118077A1 (en) | 2020-07-09 | 2022-01-13 | Bayerische Motoren Werke Aktiengesellschaft | Traction battery with overheating prevention device and motor vehicle |
| EP4320671A4 (en) * | 2021-04-09 | 2025-07-09 | Brunswick Corp | Marine battery safety system and method |
| DE102021129086A1 (en) | 2021-08-17 | 2023-02-23 | Stotz Im- und Export GmbH | Deleting a vehicle, in particular an electric vehicle |
| WO2023020830A1 (en) * | 2021-08-17 | 2023-02-23 | Stotz Im- und Export GmbH | Extinguishing a vehicle, in particular an electric vehicle |
| DE102022103877A1 (en) | 2022-02-18 | 2023-08-24 | Audi Aktiengesellschaft | Battery housing arrangement, energy storage and method for counteracting a battery fire |
| EP4550520A4 (en) * | 2023-06-08 | 2025-11-05 | Lg Energy Solution Ltd | BATTERY PACK AND VEHICLE WITH IT |
| EP4672419A4 (en) * | 2023-06-09 | 2026-01-28 | Lg Energy Solution Ltd | BATTERY PACK AND VEHICLE WITH IT |
| CN117554838A (en) * | 2024-01-11 | 2024-02-13 | 深圳市百耐信科技有限公司 | Industrial and commercial liquid cooling energy storage battery equipment and control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |