WO2012019972A1 - Battery housing comprising acceleration-sensitive elements, battery, and motor vehicle comprising a battery - Google Patents

Battery housing comprising acceleration-sensitive elements, battery, and motor vehicle comprising a battery Download PDF

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Publication number
WO2012019972A1
WO2012019972A1 PCT/EP2011/063547 EP2011063547W WO2012019972A1 WO 2012019972 A1 WO2012019972 A1 WO 2012019972A1 EP 2011063547 W EP2011063547 W EP 2011063547W WO 2012019972 A1 WO2012019972 A1 WO 2012019972A1
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WO
WIPO (PCT)
Prior art keywords
battery
acceleration
sensitive element
housing
battery housing
Prior art date
Application number
PCT/EP2011/063547
Other languages
German (de)
French (fr)
Inventor
Martin Moehle
Hans-Peter Seebich
Guenter Schnepel
Romuald Fries
Alexander Reitzle
Ulrich Zimmermann
Udo Jauernig
Stephan Leuthner
Rainer Kern
Original Assignee
Robert Bosch Gmbh
Sb Limotive Company Ltd.
Sb Limotive Germany Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh, Sb Limotive Company Ltd., Sb Limotive Germany Gmbh filed Critical Robert Bosch Gmbh
Priority to EP11748331.3A priority Critical patent/EP2603942A1/en
Publication of WO2012019972A1 publication Critical patent/WO2012019972A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/04—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses for indicating maximum value
    • G01P15/06—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses for indicating maximum value using members subjected to a permanent deformation
    • 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
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
    • 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

Definitions

  • the present invention relates to a battery case, a battery and a motor vehicle with battery.
  • the battery When transporting or handling a battery, for example, when installing it in a vehicle, the battery may be damaged if it is exposed to high accelerations. This can be done by a crash when dropping the battery. Such damage may affect the function of the battery and thus the safety of its use
  • Damage to the damaged batteries can not always be seen from the outside, unless the housing has been damaged, so that it is possible to install damaged batteries in vehicles.
  • Acceleration sensors are provided.
  • the acceleration sensors are part of a circuit which interrupts the power supply of the electronic device by the battery pack when exceeding a predetermined limit for acceleration.
  • means for recording the acceleration values may be present, so that the determined values can additionally be set in relation to time, wherein cumulative limit values for the decommissioning of the battery pack can be predetermined.
  • a battery housing preferably provided for a battery with lithium-ion battery cells, which is provided on its outside with at least one acceleration-sensitive element.
  • the acceleration-sensitive element changes its state upon the action of a defined release acceleration, wherein this state change can be perceived optically.
  • the battery case has more than one
  • acceleration-sensitive element which are each arranged at critical points of the battery case to advantageously detect all possible variants of damage safely.
  • Preferred areas for detecting the acceleration are the bottom, edges, corners and connections of the battery case.
  • the area of the battery housing that is covered by an acceleration-sensitive element can be configured arbitrarily, so also elongated shapes can be selected in addition to round or substantially round configurations, for example, to secure edges optimally.
  • the inventive design of a battery case or a battery with at least one acceleration-sensitive element can be safely and inexpensively avoided that, for example, by a fall damaged batteries in motor vehicles or in other areas are used.
  • the battery can be checked for its integrity by simple visual inspection. This change in state of the acceleration-sensitive element is preferably irreversible, so that the damage is made permanently visible and thus later errors can be ruled out.
  • acceleration-sensitive elements may be conventional
  • Acceleration recorder can be used either on the
  • Battery housing glued or permanently connected in any other suitable manner. These can also be formed by the battery case itself. Both embodiments can also be found in
  • the at least one acceleration-sensitive element is color-changeable and / or plastically deformable at the defined triggering acceleration.
  • the possible optical changes are dictated by design features of the acceleration-sensitive element.
  • acceleration-sensitive element to provide cavities with dyes that are destroyed when exceeding the limit value for the acceleration and discolor the material of the acceleration-sensitive element.
  • Another possibility is given in a transparent material, in which two components located in different cavities react with each other when destroying the cavities and form a visible from the outside dye.
  • the at least one acceleration-sensitive element can also be plastically deformed for visual inspection; the acceleration-sensitive element projects beyond the battery housing, preferably in the form of nubs or the like. If the battery falls, for example, the knobs are pressed in, signaling damage to the battery.
  • These elements may simply be hollow or have a honeycomb structure or the like inside.
  • the material used are suitable, plastically deformable plastics or metals.
  • the embodiments of the acceleration-sensitive elements can be combined with each other arbitrarily, wherein not all acceleration-sensitive elements must be activated by the identical triggering acceleration, so that particularly sensitive areas of the battery case can be particularly monitored.
  • a battery with a battery housing according to the invention usually has a number of connected between a positive battery terminal and a negative battery terminal in series battery cells, preferably
  • Lithium-ion battery cells are.
  • Another aspect of the invention relates to a motor vehicle with a
  • FIG. 1 shows a sectional detail view of a battery housing with an acceleration-sensitive element in the state before reaching a defined release acceleration
  • Figure 2 is a sectional detail view of the battery case of
  • Figure 3 is a sectional detail view of a battery case with an acceleration-sensitive element according to a second embodiment in the state before reaching a defined release acceleration
  • Figure 4 is a sectional detail view of a battery case with an acceleration-sensitive element according to the second embodiment of Figure 3 in the state after reaching a defined release acceleration.
  • FIG. 1 shows a battery housing 10 of a battery 1 1 is shown in a detailed view, wherein an acceleration-sensitive element 12 is located in the region of an edge 13 of the battery case 10. The state before exceeding a limit value for acceleration is displayed.
  • the movement-sensitive element 12 is configured hemispherical, with the curved side 14 of the movement-sensitive element 12 facing away from the battery housing 10. Inside the movement-sensitive element 12 are cavities 15 which, depending on the embodiment, can also be filled with a dye, not shown here.
  • the state after a tripping acceleration is exceeded is shown in FIG.
  • the acceleration-sensitive element 12 is plastically deformed, for example, by a fall of the battery 1 1 and thus indicates damage to the battery case 10 and / or the battery 1 1 at. Due to the plastic deformation of the acceleration-sensitive element 12, the cavities 15 are burst in the interior, wherein optionally a dye is released.
  • This acceleration-sensitive element 12 may, for example, have been produced by a foamed plastic.
  • acceleration-sensitive element 12 is shown in Figure 3 and 4, wherein Figure 3 shows the state before and Figure 4 shows the state after exceeding a
  • Threshold for the acceleration shows.
  • the acceleration-sensitive element 12 is designed as a hollow body corresponding to a fall is plastically deformed, wherein the acceleration-sensitive element 12 may be made of metal or plastic.

Abstract

The invention relates to a battery housing (10) for a battery (11), on the outside of which at least one acceleration-sensitive element (12) is disposed, to a battery, and to a motor vehicle comprising a battery. The at least one acceleration-sensitive element (12) changes the state thereof depending on a predetermined threshold value for an acceleration, wherein the change is visually perceptible. The battery (11) preferably has lithium ion battery cells.

Description

Beschreibung Titel  Description title
Batteriegehäuse mit beschleunigungssensitiven Elementen, Batterie sowie Kraftfahrzeug mit Batterie  Battery housing with acceleration-sensitive elements, battery and motor vehicle with battery
Die vorliegende Erfindung betrifft ein Batteriegehäuse, eine Batterie sowie ein Kraftfahrzeug mit Batterie. The present invention relates to a battery case, a battery and a motor vehicle with battery.
Stand der Technik State of the art
Bei Transport oder Handhabung einer Batterie, beispielsweise beim Einbau in ein Fahrzeug, kann es zu Beschädigungen der Batterie kommen, wenn diese zu hohen Beschleunigungen ausgesetzt wird. Dies kann durch einen Aufprall beim Fallenlassen der Batterie geschehen. Derartige Beschädigungen können die Funktion der Batterie und damit die Sicherheit bei deren Benutzung When transporting or handling a battery, for example, when installing it in a vehicle, the battery may be damaged if it is exposed to high accelerations. This can be done by a crash when dropping the battery. Such damage may affect the function of the battery and thus the safety of its use
beeinträchtigen. Den beschädigten Batterien ist der Schaden von außen nicht immer anzusehen, sofern nicht das Gehäuse in Mitleidenschaft gezogen wurde, so dass die Möglichkeit besteht, beschädigte Batterien in Fahrzeuge einzubauen. affect. Damage to the damaged batteries can not always be seen from the outside, unless the housing has been damaged, so that it is possible to install damaged batteries in vehicles.
Aus der US 2008/0084180 A1 ist ein Batteriepack für insbesondere elektronische Geräte bekannt, das mit Mitteln zur Erfassung von Stößen, vorzugsweise From US 2008/0084180 A1 a battery pack for in particular electronic devices is known, which with means for detecting shocks, preferably
Beschleunigungssensoren versehen ist. Die Beschleunigungssensoren sind Teil einer Schaltung, die bei Überschreitung eines für eine Beschleunigung vorgegebenen Grenzwertes die Stromversorgung des elektronischen Geräts durch den Batteriepack unterbricht. Zudem können Mittel zur Aufzeichnung der Beschleunigungswerte vorhanden sein, so dass die ermittelten Werte zusätzlich in Relation zur Zeit gesetzt werden können, wobei kumulierte Grenzwerte für die Außerbetriebnahme des Batteriepacks vorgebbar sind. Diese Maßnahmen sind für mobil verwendbare elektronische Geräte vorgesehen, die aufgrund ihrer Verwendungsart starken Belastungen ausgesetzt sein können. Um also während der gesamten Nutzungsdauer Schäden am Batteriepack rechtzeitig, also vor einer eventuellen Schädigung des elektronischen Geräts zu erkennen und eine Unterbrechung der Stromversorgung herbeiführen zu können, wird ein relativ hoher schaltungstechnischer Aufwand betrieben, der mit zusätzlichen Kosten verbunden ist und zudem selber eine Fehlerquelle darstellen kann. Acceleration sensors is provided. The acceleration sensors are part of a circuit which interrupts the power supply of the electronic device by the battery pack when exceeding a predetermined limit for acceleration. In addition, means for recording the acceleration values may be present, so that the determined values can additionally be set in relation to time, wherein cumulative limit values for the decommissioning of the battery pack can be predetermined. These measures are intended for mobile electronic devices that may be exposed to heavy loads due to their use. So, while To detect damage to the battery pack in good time, so before any damage to the electronic device and to bring about an interruption of the power supply, a relatively high circuit complexity is required, which is associated with additional costs and also can be a source of error itself.
Offenbarung der Erfindung Disclosure of the invention
Erfindungsgemäß wird ein Batteriegehäuse, vorzugsweise für eine Batterie mit Lithium-Ionen-Batteriezellen zur Verfügung gestellt, das auf seiner Außenseite mit mindestens einem beschleunigungssensitiven Element versehen ist. Das beschleunigungssensitive Element verändert beim Einwirken einer definierten Auslösebeschleunigung seinen Zustand, wobei diese Zustandsänderung optisch wahrgenommen werden kann. According to the invention, a battery housing, preferably provided for a battery with lithium-ion battery cells, which is provided on its outside with at least one acceleration-sensitive element. The acceleration-sensitive element changes its state upon the action of a defined release acceleration, wherein this state change can be perceived optically.
Vorzugsweise weist das Batteriegehäuse mehr als ein Preferably, the battery case has more than one
beschleunigungssensitives Element auf, die jeweils an kritischen Stellen des Batteriegehäuses angeordnet sind, um vorteilhafterweise alle möglichen Varianten einer Beschädigung sicher erfassen zu können. acceleration-sensitive element, which are each arranged at critical points of the battery case to advantageously detect all possible variants of damage safely.
Bevorzugte Bereiche zur Erfassung der Beschleunigung sind die Unterseite, Kanten, Ecken und Anschlüsse des Batteriegehäuses. Preferred areas for detecting the acceleration are the bottom, edges, corners and connections of the battery case.
Der Bereich des Batteriegehäuses, der von einem beschleunigungssensitiven Element bedeckt wird, kann beliebig ausgestaltet werde, so können neben runden oder im Wesentlichen runden Ausgestaltungen auch langgestreckte Formen ausgewählt werden, um beispielsweise Kanten optimal zu sichern. The area of the battery housing that is covered by an acceleration-sensitive element, can be configured arbitrarily, so also elongated shapes can be selected in addition to round or substantially round configurations, for example, to secure edges optimally.
Durch die erfindungsgemäße Ausgestaltung eines Batteriegehäuses bzw. einer Batterie mit mindestens einem beschleunigungssensitiven Element kann sicher und kostengünstig vermieden werden, dass beispielsweise durch einen Sturz beschädigte Batterien in Kraftfahrzeugen oder auch in anderen Bereichen zum Einsatz kommen. Die Batterie kann durch einfache Sichtkontrolle auf ihre Unversehrtheit überprüft werden. Diese Zustandsänderung des beschleunigungssensitiven Elements ist vorzugsweise irreversibel, so dass die Schädigung dauerhaft sichtbar gemacht wird und somit spätere Irrtümer ausgeschlossen werden können. The inventive design of a battery case or a battery with at least one acceleration-sensitive element can be safely and inexpensively avoided that, for example, by a fall damaged batteries in motor vehicles or in other areas are used. The battery can be checked for its integrity by simple visual inspection. This change in state of the acceleration-sensitive element is preferably irreversible, so that the damage is made permanently visible and thus later errors can be ruled out.
Als beschleunigungssensitive Elemente können übliche As acceleration-sensitive elements may be conventional
Beschleunigungsaufzeichner verwendet werden, die entweder auf dem Acceleration recorder can be used either on the
Batteriegehäuse aufgeklebt oder in sonstiger geeigneter Weise mit diesem dauerhaft verbunden sind. Diese können aber auch durch das Batteriegehäuse selber ausgebildet sein. Beide Ausführungsformen lassen sich auch in Battery housing glued or permanently connected in any other suitable manner. These can also be formed by the battery case itself. Both embodiments can also be found in
Abhängigkeit von den jeweiligen Sicherheitsanforderungen kombinieren. Combine dependence on the respective safety requirements.
Das mindestens eine beschleunigungssensitive Element ist bei der definierten Auslösebeschleunigung farblich veränderbar und/oder plastisch verformbar. Die möglichen optischen Änderungen werden durch konstruktive Merkmale des beschleunigungssensitiven Elements vorgegeben. The at least one acceleration-sensitive element is color-changeable and / or plastically deformable at the defined triggering acceleration. The possible optical changes are dictated by design features of the acceleration-sensitive element.
Zur Farbänderung ist es beispielsweise möglich, in dem For color change, it is possible, for example, in the
beschleunigungssensitiven Element Hohlräume mit Farbstoffen vorzusehen, die bei Überschreiten des Grenzwertes für die Beschleunigung zerstört werden und das Material des beschleunigungssensitiven Elements verfärben. Eine andere Möglichkeit ist bei einem transparenten Material gegeben, bei dem zwei in unterschiedlichen Hohlräumen befindliche Komponenten bei Zerstörung der Hohlräume miteinander reagieren und einen von außen sichtbaren Farbstoff bilden. acceleration-sensitive element to provide cavities with dyes that are destroyed when exceeding the limit value for the acceleration and discolor the material of the acceleration-sensitive element. Another possibility is given in a transparent material, in which two components located in different cavities react with each other when destroying the cavities and form a visible from the outside dye.
Das mindestens eine beschleunigungssensitive Element kann nach einer anderen Ausführungsform zur Sichtkontrolle auch plastisch verformt werden, dazu ragt das beschleunigungssensitive Element über das Batteriegehäuse hinaus, vorzugsweise in der Form von Noppen oder dergleichen. Bei einem Sturz der Batterie werden beispielsweise die Noppen eingedrückt und signalisieren damit eine Beschädigung der Batterie. Diese Elemente können einfach hohl ausgestaltet sein oder im Inneren eine Wabenstruktur oder dergleichen aufweisen. Um eine bestimme Auslösebeschleunigung einzustellen, wählt der Fachmann geeignete konstruktive Merkmale, wie oben beispielhaft beschrieben, und ein Material mit entsprechenden Eigenschaften zur Ausgestaltung der According to another embodiment, the at least one acceleration-sensitive element can also be plastically deformed for visual inspection; the acceleration-sensitive element projects beyond the battery housing, preferably in the form of nubs or the like. If the battery falls, for example, the knobs are pressed in, signaling damage to the battery. These elements may simply be hollow or have a honeycomb structure or the like inside. In order to set a certain triggering acceleration, the person skilled in the art will choose suitable design features, as described above by way of example, and Material with corresponding properties for the design of
beschleunigungssensitiven Elemente aus. acceleration-sensitive elements.
Als Material werden geeignete, plastisch verformbare Kunststoffe oder Metalle eingesetzt. The material used are suitable, plastically deformable plastics or metals.
Die Ausführungsformen der beschleunigungssensitiven Elemente lassen sich beliebig miteinander kombinieren, wobei nicht alle beschleunigungssensitiven Elemente durch die identische Auslösebeschleunigung aktivierbar sein müssen, so dass besonders sensible Bereiche des Batteriegehäuses besonders überwacht werden können. The embodiments of the acceleration-sensitive elements can be combined with each other arbitrarily, wherein not all acceleration-sensitive elements must be activated by the identical triggering acceleration, so that particularly sensitive areas of the battery case can be particularly monitored.
Eine Batterie mit einem erfindungsgemäßen Batteriegehäuse weist in der Regel eine Anzahl von zwischen einem positiven Batterieterminal und einem negativen Batterieterminal in Serie geschalteten Batteriezellen auf, die vorzugsweiseA battery with a battery housing according to the invention usually has a number of connected between a positive battery terminal and a negative battery terminal in series battery cells, preferably
Lithium-Ionen-Batteriezellen sind. Lithium-ion battery cells are.
Ein weiterer Aspekt der Erfindung betrifft ein Kraftfahrzeug mit einem Another aspect of the invention relates to a motor vehicle with a
elektrischen Antriebsmotor zum Antreiben des Kraftfahrzeugs und einer mit dem elektrischen Antriebsmotor verbundenen oder verbindbaren Batterie, die ein erfindungsgemäß ausgestaltetes Batteriegehäuse aufweist. electric drive motor for driving the motor vehicle and connected to the electric drive motor or connectable battery having a inventively ausgestaltetes battery housing.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben und in der Beschreibung beschrieben. Advantageous developments of the invention are specified in the subclaims and described in the description.
Zeichnungen drawings
Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen und der nachfolgenden Beschreibung näher erläutert. Es zeigen: Embodiments of the invention will be explained in more detail with reference to the drawings and the description below. Show it:
Figur 1 eine geschnittene Detailansicht eines Batteriegehäuses mit einem beschleunigungssensitiven Element im Zustand vor Erreichen einer definierten Auslösebeschleunigung, Figur 2 eine geschnittene Detailansicht des Batteriegehäuses der 1 shows a sectional detail view of a battery housing with an acceleration-sensitive element in the state before reaching a defined release acceleration, Figure 2 is a sectional detail view of the battery case of
Ausführungsform gemäß Figur 1 mit einem beschleunigungssensitiven Element im Zustand nach Erreichen einer definierten Auslösebeschleunigung, Embodiment according to Figure 1 with an acceleration-sensitive element in the state after reaching a defined release acceleration,
Figur 3 eine geschnittene Detailansicht eines Batteriegehäuses mit einem beschleunigungssensitiven Element nach einer zweiten Ausführungsform im Zustand vor Erreichen einer definierten Auslösebeschleunigung, und Figure 3 is a sectional detail view of a battery case with an acceleration-sensitive element according to a second embodiment in the state before reaching a defined release acceleration, and
Figur 4 eine geschnittene Detailansicht eines Batteriegehäuses mit einem beschleunigungssensitiven Element nach der zweiten Ausführungsform gemäß Figur 3 im Zustand nach Erreichen einer definierten Auslösebeschleunigung. Figure 4 is a sectional detail view of a battery case with an acceleration-sensitive element according to the second embodiment of Figure 3 in the state after reaching a defined release acceleration.
In Figur 1 ist ein Batteriegehäuse 10 einer Batterie 1 1 in einer Detailansicht gezeigt, wobei ein beschleunigungssensitives Element 12 im Bereich einer Kante 13 des Batteriegehäuses 10 befindlich ist. Es wird der Zustand vor Überschreiten eines Grenzwertes für die Beschleunigung dargestellt. Das bewegungssensitive Element 12 ist halbkugelförmig ausgestaltet, wobei die gewölbte Seite 14 des bewegungssensitiven Elements 12 vom Batteriegehäuse 10 wegweist. Im Inneren des bewegungssensitiven Elements 12 befinden sich Hohlräume 15, die je nach Ausführungsform auch mit einem hier nicht dargestellten Farbstoff gefüllt sein können. 1 shows a battery housing 10 of a battery 1 1 is shown in a detailed view, wherein an acceleration-sensitive element 12 is located in the region of an edge 13 of the battery case 10. The state before exceeding a limit value for acceleration is displayed. The movement-sensitive element 12 is configured hemispherical, with the curved side 14 of the movement-sensitive element 12 facing away from the battery housing 10. Inside the movement-sensitive element 12 are cavities 15 which, depending on the embodiment, can also be filled with a dye, not shown here.
Der Zustand nach Überschreiten einer Auslösebeschleunigung ist in Figur 2 dargestellt. Das beschleunigungssensitive Element 12 ist beispielsweise durch einen Sturz der Batterie 1 1 plastisch verformt und zeigt damit eine Schädigung des Batteriegehäuses 10 und/oder der Batterie 1 1 an. Durch die plastische Verformung des beschleunigungssensitiven Elements 12 sind die Hohlräume 15 in dessen Inneren aufgeplatzt, wobei gegebenenfalls ein Farbstoff freigesetzt wird. Dieses beschleunigungssensitive Element 12 kann beispielsweise durch einen geschäumten Kunststoff hergestellt worden sein. The state after a tripping acceleration is exceeded is shown in FIG. The acceleration-sensitive element 12 is plastically deformed, for example, by a fall of the battery 1 1 and thus indicates damage to the battery case 10 and / or the battery 1 1 at. Due to the plastic deformation of the acceleration-sensitive element 12, the cavities 15 are burst in the interior, wherein optionally a dye is released. This acceleration-sensitive element 12 may, for example, have been produced by a foamed plastic.
Eine zweite Ausführungsform des Batteriegehäuses mit einem A second embodiment of the battery case with a
beschleunigungssensitiven Element 12 wird in Figur 3 und 4 gezeigt, wobei Figur 3 den Zustand vor und Figur 4 den Zustand nach Überschreiten eines acceleration-sensitive element 12 is shown in Figure 3 and 4, wherein Figure 3 shows the state before and Figure 4 shows the state after exceeding a
Grenzwertes für die Beschleunigung zeigt. Das beschleunigungssensitive Element 12 ist als Hohlkörper ausgestaltet, der durch einen Sturz entsprechend plastisch verformt wird, wobei das beschleunigungssensitive Element 12 aus Metall oder Kunststoff gefertigt sein kann. Threshold for the acceleration shows. The acceleration-sensitive element 12 is designed as a hollow body corresponding to a fall is plastically deformed, wherein the acceleration-sensitive element 12 may be made of metal or plastic.

Claims

Ansprüche claims
1. Ein Batteriegehäuse, dadurch gekennzeichnet, dass das Batteriegehäuse (10) auf seiner Außenseite mit mindestens einem beschleunigungssensitiven Element (12) versehen ist, das bei einer definierten Auslösebeschleunigung von einem ersten Zustand in einen zweiten Zustand übergeht, der sich optisch wahrnehmbar vom ersten Zustand unterscheidet. 1. A battery housing, characterized in that the battery housing (10) is provided on its outer side with at least one acceleration-sensitive element (12), which merges at a defined triggering acceleration of a first state to a second state, the visually perceptible from the first state different.
2. Das Batteriegehäuse nach Anspruch 1 , bei dem der Übergang des 2. The battery housing according to claim 1, wherein the transition of
mindestens einen beschleunigungssensitiven Elements (12) von einem ersten in einen zweiten Zustand irreversibel ist.  at least one acceleration-sensitive element (12) is irreversible from a first to a second state.
3. Das Batteriegehäuse nach Anspruch 1 oder 2, bei dem das mindestens eine beschleunigungssensitive Element (12) bei der definierten 3. The battery housing according to claim 1 or 2, wherein the at least one acceleration-sensitive element (12) in the defined
Auslösebeschleunigung farblich veränderbar und/oder plastisch verformbar ist.  Trigger acceleration is color changeable and / or plastically deformable.
4. Das Batteriegehäuse nach einem der Ansprüche 1 bis 3, bei dem das 4. The battery case according to one of claims 1 to 3, wherein the
mindestens eine beschleunigungssensitive Element (12) sich von der Außenseite des Batteriegehäuses (10) weg erstreckt.  at least one acceleration-sensitive element (12) extends away from the outside of the battery case (10).
5. Das Batteriegehäuse nach einem der Ansprüche 1 bis 4, bei dem das 5. The battery case according to one of claims 1 to 4, wherein the
mindestens eine beschleunigungssensitive Element (12) Teil des  at least one acceleration-sensitive element (12) part of
Batteriegehäuses (10) ist und/oder gegebenenfalls mindestens ein weiteres beschleunigungssensitives Element (12) mit dem Batteriegehäuse (10) verbunden ist.  Battery housing (10) and / or optionally at least one further acceleration-sensitive element (12) is connected to the battery housing (10).
6. Das Batteriegehäuse nach einem der Ansprüche 1 bis 5, bei dem das 6. The battery housing according to one of claims 1 to 5, wherein the
mindestens eine beschleunigungssensitive Element (12) im Bereich einer Unterseite und/oder von Kanten (13) und/oder von Ecken des  at least one acceleration-sensitive element (12) in the region of a lower side and / or edges (13) and / or corners of the
Batteriegehäuses (10) angeordnet ist. Eine Batterie mit einem Batteriegehäuse (10) gemäß einem der vorhergehenden Ansprüche. Battery housing (10) is arranged. A battery having a battery case (10) according to any one of the preceding claims.
Die Batterie gemäß Anspruch 7, bei der die Batterie (1 1) The battery according to claim 7, wherein the battery (11)
Lithium-Ionen-Batteriezellen aufweist. Having lithium-ion battery cells.
Ein Kraftfahrzeug mit einem elektrischen Antriebsmotor zum Antreiben des Kraftfahrzeugs und einer mit dem elektrischen Antriebsmotor verbundenen oder verbindbaren Batterie (1 1) gemäß Anspruch 7 oder 8. A motor vehicle with an electric drive motor for driving the motor vehicle and a battery connected to the electric drive motor or connectable battery (1 1) according to claim 7 or 8.
PCT/EP2011/063547 2010-08-13 2011-08-05 Battery housing comprising acceleration-sensitive elements, battery, and motor vehicle comprising a battery WO2012019972A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11748331.3A EP2603942A1 (en) 2010-08-13 2011-08-05 Battery housing comprising acceleration-sensitive elements, battery, and motor vehicle comprising a battery

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010039327.4 2010-08-13
DE102010039327A DE102010039327A1 (en) 2010-08-13 2010-08-13 Battery housing with acceleration-sensitive elements, battery and motor vehicle with battery

Publications (1)

Publication Number Publication Date
WO2012019972A1 true WO2012019972A1 (en) 2012-02-16

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Country Status (3)

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EP (1) EP2603942A1 (en)
DE (1) DE102010039327A1 (en)
WO (1) WO2012019972A1 (en)

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US9821852B2 (en) 2016-02-03 2017-11-21 Ford Global Technologies Llc Pressurized air insert for side impacts
CN114243202A (en) * 2021-11-13 2022-03-25 四川英能基科技有限公司 Electrode cover plate, electrode, lithium battery and production process

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Publication number Priority date Publication date Assignee Title
US9821852B2 (en) 2016-02-03 2017-11-21 Ford Global Technologies Llc Pressurized air insert for side impacts
CN114243202A (en) * 2021-11-13 2022-03-25 四川英能基科技有限公司 Electrode cover plate, electrode, lithium battery and production process
CN114243202B (en) * 2021-11-13 2023-12-01 成都新英能基科技有限公司 Electrode cover plate, electrode, lithium battery and production process

Also Published As

Publication number Publication date
DE102010039327A1 (en) 2012-02-16
EP2603942A1 (en) 2013-06-19

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