EP2666198A2 - Batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques - Google Patents

Batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques

Info

Publication number
EP2666198A2
EP2666198A2 EP12700208.7A EP12700208A EP2666198A2 EP 2666198 A2 EP2666198 A2 EP 2666198A2 EP 12700208 A EP12700208 A EP 12700208A EP 2666198 A2 EP2666198 A2 EP 2666198A2
Authority
EP
European Patent Office
Prior art keywords
separating element
fire
extinguishing agent
battery according
battery
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Withdrawn
Application number
EP12700208.7A
Other languages
German (de)
English (en)
Inventor
Tim Schaefer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery 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 Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Publication of EP2666198A2 publication Critical patent/EP2666198A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • 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
    • 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
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells 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
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • 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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into 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 of a plurality of electrochemical energy storage devices. Electrochemical energy stores are needed for a wide variety of applications and
  • fire prevention and / or fire fighting is of particular importance.
  • fire prevention or firefighting is a particularly important means of increasing the safety of such
  • DE 10 2008 059 948 A1 discloses a method and a device for fire prevention and / or fire fighting for a lithium-ion battery a vehicle, in particular a motor vehicle, in which the
  • Single cells of the battery having interior of the battery is connected via an emergency line with an extinguishant storage, and in which the interior of the battery and the extinguishant storage are at least temporarily fluidly connected via an emergency opening.
  • DE 10 2008 059 942 A1 discloses a method and a device for fire prevention and / or fire fighting in a vehicle with a coolant circuit and a fire extinguishing device.
  • the fire extinguisher is provided with emergency openings which are opened for fire fighting and / or fire prevention and through which an extinguishing agent can be applied.
  • DE 10 2008 059 968 A1 discloses a method and a device for operating a lithium-ion battery of a vehicle, in which for fire prevention and / or firefighting of the individual cells of the battery having the interior of the battery via a line with a
  • Refrigerant circuit of the battery fluidly connected and, if necessary, at least temporarily, the refrigerant from the refrigerant circuit in the
  • the present invention has for its object to provide a technical teaching for fire prevention and / or fire fighting in the context of electrochemical energy storage, while possibly overcome limitations or disadvantages of known solutions.
  • This object is achieved by a product or by a method according to one of the independent claims. With the dependent claims advantageous developments of the invention are to be put under protection.
  • a battery of a plurality of electrochemical energy stores is provided, between each of which a separating element is arranged and designed such that when it is present or entering certain conditions from this separation element can escape a fire retardant material or an extinguishing agent.
  • an electrochemical energy store is to be understood as a device which stores energy in chemical form and can deliver this energy in electrical form to an external consumer.
  • energy storage are fuel cells and galvanic cells and aggregates of a plurality of such cells.
  • the cells are secondary cells, so electrochemical energy storage, which can deliver energy stored in chemical form not only in electrical form to a consumer, but which also store this in chemical form in the provision of electrical energy, d. H. so can be loaded.
  • a battery is to be understood as meaning a spatial accumulation of electrochemical energy stores, preferably with simultaneous electrical interconnection of these electrochemical energy stores.
  • the electrochemical energy storage devices are preferably located in a battery housing, in which, in particular, prismatically shaped electrochemical energy storage devices are preferably fastened by means of frames, which preferably have a foil packaging
  • Separating elements are preferably arranged between the individual electrochemical energy stores, which serve, inter alia, preferably the spatial
  • a fire is any process in which the battery, an energy storage or parts of a
  • an extinguishing agent is to be understood as meaning a substance or a substance mixture which exerts a extinguishing effect, ie preferably an inhibiting effect on fires and / or prevents or impedes the formation of fires. Under a deletion in the
  • extinguishing agents or their preferred ingredients are substances which deprive a fire source of a chemical reactant without which the fire can not be sustained, or which inhibit a chemical reaction conducive to the initiation or maintenance of a fire.
  • Extinguishing agents are preferably prepared by mixing an extinguishing agent additive with a solvent or with a carrier.
  • preferred extinguishing agent additives are so-called gelling agents which, in conjunction with other materials, solvents or carriers, preferably water, preferably form adhesive and preferably viscous gels or viscoelastic fluids, which are distinguished by their high adhesiveness to burning objects and their surfaces.
  • Gelling agents are preferred examples of extinguishing agent additives which are preferably based on so-called
  • a viscoelastic fluid is to be understood as meaning a fluid which has the property of viscoelasticity.
  • An (ideal) fluid is understood as meaning a substance which does not resist any slow shear (approximately).
  • compressible fluids gases
  • incompressible fluids liquids
  • the superordinate term "fluid” is used because most physical laws apply (approximately) equally to gases and liquids, and many of their properties differ only quantitatively, but not fundamentally qualitatively, from one another Fluids "with their descriptive fluid mechanics and non-Newtonian fluids with the descriptive rheology. The difference here is in the flow behavior of the medium, which is described by the functional relationship of shear stress or shear stress and distortion velocity or shear rate.
  • Viscose elasticity is the time, temperature and / or temperature
  • a gel is to be understood to mean a finely dispersed system comprising at least one first, often solid and at least one second, frequently liquid phase.
  • a gel is often a colloid.
  • the solid phase forms one
  • Colloids are particles or droplets which are finely distributed in another medium (solid, gas or liquid), the dispersion medium.
  • extinguishing or fire retardant materials preferred in the context of this invention are inert gases or mixtures of inert gases.
  • an inert gas is to be understood as meaning a gas or a mixture of gases which is suitable for avoiding or combating a fire, preferably in that the inert gas has a chemical effect
  • Reactant which is conducive or necessary for the emergence or continuation of a fire, displaced or eliminated from the fire area.
  • inert gases are the gases argon, nitrogen, carbon dioxide or mixtures of some of these gases, such as
  • Inergen® is a brand name for a mixture of nitrogen, argon and carbon dioxide used as extinguishing agent for fire fighting or as protective gas for active fire prevention. Inergen consists of 52% by volume of nitrogen, 40% by volume of argon and 8% by volume of carbon dioxide
  • INERGEN® - argon, nitrogen and carbon dioxide - are of natural origin. Argon and nitrogen are extracted from the Ambient atmosphere, carbon dioxide recovered from natural gas sources. After being extinguished, they are returned to the atmosphere unchanged without polluting the environment. INERGEN® stifles fire
  • the 8 vol.% - C02 content in the extinguishing agent results in the flooded room a concentration of 2.5 - 5.0 vol.%, Depending on the fire risk and extinguishing agent. This small percentage influences the respiratory control in the human body, so that the oxygen supply in the extinguishing area -
  • INERGEN® is therefore a gas extinguishing agent that does not affect the human organism. It removes completely residue-free and 100% environmentally neutral
  • the noble gas argon is heavier than air at a density of 1.784 kg / cm 3 at 0 * C and 1013 hPa. It is chemically very inert (inert), and it is the cheapest among the noble gases and available in large quantities, so that it finds industrial use in many fields.
  • Argon is preferably used as a shielding gas when nitrogen can not be used as a shielding gas, for example, in processes with metals that chemically react with nitrogen at high temperatures.
  • Argon is non-toxic and is even used as a food additive (E938) as a propellant and protective gas, preferably in the packaging of food and in wine production.
  • Argon can be used as a gaseous extinguishing agent due to its suffocating effect and is mainly used for property protection, especially in electrical and computer equipment (http://de.wikipedia.org/wiki/Argon).
  • Nitrogen is a colorless and non-toxic gas heavier than air at a density of 1, 250 kg / cm 3 and boiling at 77.36 Kelvin.
  • Nitrogen is the main constituent of natural respiratory air at 78%
  • Argon is used as a food additive, for example as a propellant, packing gas or gas for whipping cream under the designation E941.
  • Nitrogen serves as a protective gas, inter alia during welding and lamp filling gas.
  • the inert properties of nitrogen have an advantageous effect here (http: // /de.wikipedia.org/wiki/Nitrogen)
  • Carbon dioxide, also carbon dioxide, is an incombustible only above 2 000 "in carbon monoxide and oxygen splitting, the color and
  • Carbon dioxide is a natural component of the air in which it occurs with a mean concentration of 0.038%. Carbon dioxide is displacing because of its oxygen
  • carbon dioxide causes inergen to be used for fire fighting and fire prevention in rooms where people are present. Carbon dioxide has an increasing effect on the respiratory rate of people under oxygen deficiency, so that people in rooms flooded with Inergen also at
  • Oxygen concentrations can survive, which are just over 10 vol .-%. Since many fires already extinguish at such low oxygen concentrations or do not even arise, a fire prevention or
  • Argonite® is a brand name for a mixture of approximately 50% argon and 50% nitrogen. Unlike inergens, argonite does not contain carbon dioxide admixture, with the result that the potential life-sustaining effects of carbon dioxide addition to inergens do not occur when argonite is used, which also has the occasionally beneficial effect of having undesirable effects on living beings or chemical reactions a carbon dioxide admixture when using argonite are not to be expected. In addition to the already mentioned inert gases such as argon or nitrogen or
  • Admixtures preferably may contain carbon dioxide, come as inert gases in the context of the present invention also further below
  • Haloforme in which the fluorine content is replaced by another halogen is replaced by another halogen.
  • Fluoroform has the chemical formula CHF 3 and is used in various
  • Fluoroform is commercially available under the tradename FE-13 from DuPont.
  • the inert gas 1, 1, 1, 2,3,3,3-heptafluoropropane into consideration which is also among the
  • HFC-20720 or HFC-227ea is known. It is an odorless and colorless gaseous halocarbon. This compound is used as a gaseous fire extinguishing agent.
  • the extinguishing agent is preferably suitable for combating fires in the areas of
  • Another compound that can be used as an inert gas in the context of the present invention is bromotrifluoromethane.
  • Bromotrifluoromethane smokes burns already at a concentration of 6%.
  • the Bromchlordifluormethan into consideration which is also known as Halon 121 1.
  • the Bromchlordifluormethan into consideration which is also known as Halon 121 1.
  • Novec 1230 is a product of the company 3M.
  • the density of Novec 1230 is 1.723 g / cm 3 ; the gas is thus heavier than air.
  • the compound is in normal conditions as a liquid, which is why it can be introduced in liquid form in the fire area.
  • a control device is preferably a so-called battery Management system, which preferably has sensors for the detection of measured variables that can be indicative of a fire or its possible emergence.
  • Preferred examples of such measures are temperatures of battery components or gases in interstices between battery components, pressures, partial pressures or concentrations of chemical substances whose presence in certain concentrations can be indicative of a fire or its possible formation.
  • Such control devices preferably process the measured variables detected by the sensors according to programmed algorithms or according to an electronically represented logic, preferably using at least one processor to at least one signal which causes the escape of fire-retardant material or an extinguishing agent from the separating element.
  • preferably electronically controllable valves, igniters or other actuators are used by means of which an electronic signal can be converted into a mechanical, pneumatic, hydraulic, thermal or other effect.
  • the separating element is preferably designed such that a change in certain physical or chemical parameters indicative of a fire or its possible formation causes a physical or chemical reaction of the separating element or at least one of its constituents which causes the escape of a fire-retardant material or extinguishing agent from the separator without the action of a signal of a control device result. This may preferably be the violation of
  • Predetermined breaking points or the ignition of a preferably exothermic chemical reaction or a similar physical or chemical reaction of Separating element or at least one of its components act.
  • Embodiments of the invention provided control device should be failed or disturbed.
  • temperature sensors are provided in the interior, on the surface or in the vicinity of a separating element whose signals are preferably evaluated by a control device such as a battery management system, in the event of an emerging or existing fire, the escape of a fire-retardant material or an extinguishing agent to effect from the separator.
  • a control device such as a battery management system
  • Embodiments of the invention cause an increase in the temperature of a material in the interior, on the surface or in the environment of the
  • Trenn institutes a physical or chemical reaction, preferably the ignition of an exothermic reaction whose energy is used in these cases, at least partially for initiating a process which the escape of a fire retardant material or an extinguishing agent from the
  • chemical sensors are provided in the interior, on the surface or in the vicinity of a separating element whose signals are preferably evaluated by a control device such as a battery management system, in the event of an emerging or existing fire, the escape of a fire-retardant material or a To cause extinguishing agent from the separator.
  • a control device such as a battery management system
  • Embodiments of the invention cause an increase in the concentration of a material in the interior, on the surface or in the environment of the
  • Trenn institutes a physical or chemical reaction, preferably the ignition of an exothermic reaction whose energy is used in these cases, at least partially for initiating a process which the escape of a fire retardant material or an extinguishing agent from the
  • the temperature of at least one fire-retardant material or extinguishing agent exiting the separator is reduced as it exits the separator by expansion.
  • the adiabatic expansion or the isenthalpic expansion are preferably used in this context. The latter is also known as the Joule-Thomson effect.
  • the volume of a preferably gaseous material or a mixture of at least one gas and solid or liquid, preferably finely divided, fire retardant or extinguishing agent is increased or expanded under at least approximately insulation against heat exchange with the environment.
  • the thermodynamic state variables such as the temperature and pressure and the chemical composition of the material, in particular depend on the intermolecular forces in the material.
  • Separating element preferably at least one suitable nozzle or throttle, through which the adiabatic or isenthaipisch to be expanded material can flow out of the separating element.
  • the separating element is at least partially configured as an elastic cushion, upholstery or as a balloon.
  • the separating element is at least partially filled with a gaseous fire-retardant material or extinguishing agent. According to a further preferred embodiment of the invention, whose characteristics can also be combined with features of other embodiments of the invention, it is provided that the separating element is at least partially filled with a solid or liquid material, which in the presence or occurrence of certain conditions or at its exit from the separating element at least partially passes into a liquid or gaseous state. Preferably, this change occurs
  • Physical state as a result of a reduction in pressure for example when bursting a predetermined breaking point in a at least partially designed as a cushion, cushion or balloon partition, in particular by adiabatic or isenthalpische expansion of a gas with which such a cushion, cushion or such a balloon is at least partially filled.
  • the at least partial transition into a liquid or gaseous state of at least one solid or liquid material in the separator or at its exit from the separating element is connected with a cooling effect.
  • the cooling effect is preferably due to an adiabatic or isenthalpic
  • Expansion particularly preferably in combination with an ensuing evaporation process of a gas liquefied by the adiabatic or isenthalpic expansion, in which the vaporizing or evaporating liquid withdraws heat from its environment, thus cooling its environment.
  • At least one separating element is arranged. According to a further preferred embodiment of the invention, whose features can also be combined with features of other embodiments of the invention, it is provided that at least one
  • Separating element has a first frame which at least one adjacent to this separating element with at least one second frame
  • Figure 1 shows schematically a preferred embodiment of a battery according to the invention
  • FIG. 2 is a schematic view of another preferred embodiment of a battery according to the invention.
  • the embodiments shown in both figures show a battery of a plurality of electrochemical energy storage devices 2, between each of which a separating element 10 is arranged.
  • Energy storage are connected by electrical conductor elements 9 and 1 1 in series and by Abieiter 4 and 5, the electrical connections of the end energy storage are led to the outside. Between the walls, the cover plate or the bottom plate of the battery case 1 and the
  • Dividing elements or some separating elements are preferably designed as elastic cushions, upholstery or as a balloon. This allows the
  • Control device 12 which, preferably controlled by sensors, generate signals and send out to the separating elements 13, which can cause the escape of a fire-retardant material or an extinguishing agent from the separating element.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Battery Mounting, Suspending (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Secondary Cells (AREA)

Abstract

Selon l'invention, dans une batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques, un élément de séparation situé entre lesdits accumulateurs est conçu pour que, dans des conditions définies, un matériau ignifuge ou un agent d'extinction peut sortir de l'élément de séparation.
EP12700208.7A 2011-01-18 2012-01-09 Batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques Withdrawn EP2666198A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110008792 DE102011008792A1 (de) 2011-01-18 2011-01-18 Batterie aus einer Mehrzahl von elektrochemischen Energiespeichern
PCT/EP2012/000065 WO2012097965A2 (fr) 2011-01-18 2012-01-09 Batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques

Publications (1)

Publication Number Publication Date
EP2666198A2 true EP2666198A2 (fr) 2013-11-27

Family

ID=45476506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12700208.7A Withdrawn EP2666198A2 (fr) 2011-01-18 2012-01-09 Batterie composée d'une pluralité d'accumulateurs d'énergie électrochimiques

Country Status (7)

Country Link
US (1) US20140017525A1 (fr)
EP (1) EP2666198A2 (fr)
JP (1) JP2014504785A (fr)
KR (1) KR20140005236A (fr)
CN (1) CN103329307A (fr)
DE (1) DE102011008792A1 (fr)
WO (1) WO2012097965A2 (fr)

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KR20140005236A (ko) 2014-01-14
CN103329307A (zh) 2013-09-25
DE102011008792A1 (de) 2012-07-19
WO2012097965A3 (fr) 2013-08-01
WO2012097965A2 (fr) 2012-07-26
JP2014504785A (ja) 2014-02-24

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