Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
• • 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
  • A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
  • A62C3/065—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products for containers filled with inflammable liquids
• • 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
  • A62C5/00—Making of fire-extinguishing materials immediately before use
  • A62C5/033—Making of fire-extinguishing materials immediately before use of gel
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
• • A—HUMAN NECESSITIES
  • A62—LIFE-SAVING; FIRE-FIGHTING
  • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
  • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
  • A62D1/0064—Gels; Film-forming compositions
• • 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
• • 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
  • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
• • 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
  • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
  • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2200/00—Safety devices for primary or secondary batteries
• • 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
• • 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 an electrochemical energy store.
• fire prevention and / or fire fighting are of particular importance.
• fire prevention or fire fighting is a particularly important means of increasing the security of such energy storage.
• DE 10 2008 059 948 A1 discloses a method and a device for fire prevention and / or fire fighting for a lithium-ion battery of a vehicle, in particular of a motor vehicle, in which the individual cells of the battery having interior of the battery connected via an emergency line with an extinguishing agent storage is, and in which the interior of the battery and the extinguishing agent 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 for fire fighting and / or - -
• Fire prevention can be opened 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 is and if necessary, at least temporarily, the refrigerant from the refrigerant circuit is introduced into the interior.
• 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.
• an electrochemical energy store is provided with a housing and at least one electrochemical cell arranged in the housing, in which at least one wall of the housing is at least partially coated or acted upon by an extinguishing agent or an extinguishing agent additive.
• an electrochemical energy store is to be understood as a device which stores energy in chemical form and delivers this energy in electrical form to an external consumer - -
• Such 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 housing for an electrochemical energy store means any device which is suitable and intended to prevent or impede mass transport between the components of the electrochemical energy store and its environment.
• the housing is also suitable and intended to prevent or complicate an unwanted energy exchange of the electrochemical energy storage with its environment, especially if in this case energy, especially in non-electrical form, would be undesirably exchanged, for example heat energy or mechanical energy.
• a housing thus preferably serves to protect the electrochemical energy storage from undesirable influences by its environment and on the other hand, the protection of the environment from stress or dangers that could emanate from the electrochemical energy storage.
• Such housings are often, but not always completely closed, and in some cases adapted for controlled gas exchange between the energy store and its environment.
• the walls of a housing for such an energy storage are those components of the housing which are suitable for preventing or hindering unwanted mass transfer or undesired energy exchange between the energy store and its environment.
• the walls also include those components of the housing which separate different sections of the housing from each other. - -
• a fire is to be understood as any process in which the energy store or parts of the energy store or its surroundings transform or decompose in an undesired chemical reaction. Fires in this sense are in particular exothermic chemical reactions of components or components of an energy storage device or its environment, which often occur as a result of overheating of the energy storage device or its components.
• 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.
• an extinguishing effect should preferably be understood to mean an effect which counteracts fire, i. which can prevent or mitigate the consequences or the occurrence of a fire.
• 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 in the context of this invention 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 superabsorbents, and which are preferably kept as powder or solid materials or else as emulsions.
• Superabsorbents can often be many times their weight or volume of water or other carrier substance - -
• Water-based gels which are formed by corresponding superabsorbents by mixing with water, have the advantage over conventional foam carpets that an air-tight barrier layer is formed which lasts longer than conventional foam carpets and which delivers significantly less water to the combustible material.
• 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, because of their behavior real fluids can be classified into "Newtonian fluids.” "with the 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.
• Viscoelasticity refers to the time, temperature and / or frequency dependent elasticity of fluids such as e.g. of polymeric melts or solids, such as plastics.
• the viscoelasticity is characterized by a partially elastic, partially viscous behavior. After removal of an external force, the material returns only incompletely to its original state; the remaining energy is dissipated in the form of flow processes.
• a gel is often a colloid.
• the solid phase forms a spongy, three-dimensional network whose pores are filled by a liquid or by a gas. Both phases often penetrate completely.
• Colloids are particles or droplets which are finely distributed in another medium (solid, gas or liquid), the dispersion medium.
• an electrochemical energy store is provided with a plurality of electrochemical cells, between which an extinguishing agent or an extinguishing agent additive is at least partially disposed.
• this electrochemical energy storage on frameless, electrically connected via their side surfaces or contacts prismatic electrochemical cells.
• an electrochemical energy store in which at least one electrochemical cell is at least partially coated or acted upon by an extinguishing agent or an extinguishing agent additive.
• electrochemical energy stores in which the electrochemical cells are at least partially laminated with their side surfaces and the extinguishing agent or an extinguishing agent additive.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive is a solid or an elastically deformable material or is contained in such a material.
• the term solid in this context should also include pressed aggregations of powders or foams, in particular elastically deformable foams.
• an electrochemical energy storage is provided in which the extinguishing agent or - -
• the extinguishing medium additive is arranged as an intermediate element, for example in the form of spacers or edge protection plates between each two adjacent electrochemical cells or between an electrochemical cell and a housing wall.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive can absorb or contain a multiple of its volume of water.
• the extinguishing agent or the extinguishing agent additive can absorb or contain a multiple of its volume of water.
• extinguishing agents based on gelling agents in particular those containing extinguishing agent additives based on so-called superabsorbents.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive contains at least one polymer, preferably a copolymer, particularly preferably an acrylamide copolymer or a sodium acrylate copolymer.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive contains at least one fatty acid ester.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive contains at least one surfactant.
• an electrochemical energy store in which the extinguishing agent or the extinguishing agent additive at least one mixture or an emulsion of water and at least one fatty acid ester, at least one polymer, preferably a copolymer, particularly preferably an acrylamide copolymer or a sodium acrylate copolymer.
• an electrochemical energy store in which the extinguishing agent is a mixture or an emulsion of about 28% of at least one polymer, about 6% of at least one surfactant, about 23% of at least one ester oil and about 43 Contains% water.
• an electrochemical energy store is provided, is used in the extinguishing agent additive in conjunction with water and a mixture or an emulsion of about 50% of at least one polymer, about 10% of at least one surfactant and about 40% at least of an ester oil.
• the carrier substance, with which the extinguishing agent additive can mix to form an extinguishing agent a coolant which flows through a closed during normal operation of the energy storage coolant circuit, which is designed so that the coolant in certain cases from the closed fire Exiting the coolant circuit and can develop a extinguishing effect at these points.
• the extinguishing effect can be selectively developed in certain places that are affected by a fire; At the same time, the effect can be retained as a coolant.
• a coolant is to be understood as meaning a fluid material, in particular a gaseous or liquid heat transport medium, which can absorb heat from its environment, transport this heat through the flow, and can also deliver this heat to its environment its physical properties is suitable to transport heat by heat conduction and / or heat transport via aerodynamic or hydrodynamic flows, in particular via convection currents in the heat transport medium.
• heat transfer media commonly used in the art are - -
• air or water or other common coolant For example, air or water or other common coolant.
• gases or liquids are common, such as chemically inert (less reactive) gases or liquids, such as noble gases or liquefied noble gases or substances with high heat capacity and / or thermal conductivity.
• a flowable material should be understood to mean any material in which a flow can form in the aerodynamic or hydrodynamic sense, or in which such a flow can be maintained.
• examples of such materials are in particular gases and liquids. But even in a mixture of liquids or gases and finely divided solids, so-called aerosols, or in colloidal solutions flows in this sense can be maintained or arise.
• a particularly preferred device according to the invention has a device for stabilizing the coolant pressure in the case of local leakage of the coolant from the coolant circuit in the event of fire.
• This embodiment of the invention may be associated with a substantial or complete preservation of the refrigerant pressure and thus the cooling effect, when the refrigerant escapes in places from the cooling circuit to develop its extinguishing effect at these points.
• water is used as the coolant, and in which this coolant flows through a closed in normal operation of the energy storage cooling circuit, which is designed so that the water can escape from the closed coolant circuit at certain points in case of fire and mixed with an extinguishing agent additive upon exiting the coolant loop to form a gel or viscoelastic fluid.
• an extinguishing agent additive consisting of a mixture of at least one polymer, at least one surfactant and at least one ester oil.
• an additive consisting of a mixture of about 50% of at least one polymer, about 10% of at least one surfactant and about 40% of at least one ester oil.
• the advantageous effects of the cooling and extinguishing mixture or of the additive are based on the viscoelasticity of the cooling and extinguishing mixture and on its ability to bind water.
• the adhesive force of the coolant can also be increased on smooth surfaces. The liquid does not drain off unused.
• the extinguishing agent additive in some preferred embodiments, preferably has the form of a mixture consisting of P wt% of at least one polymer, T wt% of at least one surfactant and E wt% of at least one ester oil based on the total amount of the additive
• Fig. 1 shows a first embodiment of the present invention
• Fig. 2 shows a second embodiment of the present invention
• Fig. 3 shows a third embodiment of the present invention
• Fig. 4 shows a fourth embodiment of the present invention
• Fig. 5 shows a fifth embodiment of the present invention
• Fig. 6 is a sixth embodiment of the present invention.
• Fig. 7 shows a seventh embodiment of the present invention.
• FIG. 1 The exemplary embodiment of an electrochemical energy store according to the invention shown schematically in FIG. 1 has a housing 1 whose walls are provided on the inside with an extinguishing agent or extinguishing agent additive 7, 8 -
• the electrochemical energy store has a plurality, in this case four, electrochemical cells 2, whose Abieiter, d. H. their electrical connections 3 are connected to each other by means of electrical connectors 6 to an electrical series connection, so that applied to the out of the housing out Abieitern 4 and 5, the sum of the voltages generated by the electrochemical cells 2 shown in FIG.
• This embodiment has over known forms of electrochemical energy storage on the advantage that in the event of a fire in the interior of the housing in which burning or combustible materials sink under the influence of gravity on the bottom plate of the housing 1, which on the walls and on the bottom plate of the Enclosed extinguishing agent or extinguishing additives 7, 8 and 9 unfold a fire-retardant effect on the combustible or burning materials, so that the fire or its development is effectively counteracted.
• the coatings 7, 8 and 9 are not an extinguishing agent but an extinguishing agent additive, it is advantageous if the substance which together with the extinguishing agent additive gives the extinguishing agent is destroyed or destroyed by the burning electrochemical cells 2 is released and mixed with the extinguishing agent additive to the extinguishing agent or can react with this extinguishing agent.
• a carrier substance such as, for example, water can be introduced, with which the extinguishing agent additive can mix or combine to form an extinguishing agent.
• Preferred embodiments of the invention are those in which the materials with which the housing walls are coated or acted on are composite materials which also partially consist of an extinguishing agent additive and a carrier substance, which together with the extinguishing agent additive results in the extinguishing agent, so that this composite material itself under the influence - -
• the mixed with the fire developing elevated temperature mixes or chemically reacts and forms in this way the extinguishing agent.
• the extinguishing agent additive on the housing inner wall or on the housing outer wall, the extinguishing agent additive by coating or otherwise mounted so that when external supply of a solvent or other carrier substance, such as water, on the housing walls or on the housing bottom attached extinguishing agent additive connects to the externally supplied solvent, preferably water, and thus reacts to the extinguishing agent.
• a preferred extinguishing agent additive is a mixture or emulsion of at least one polymer, at least one surfactant and at least one ester oil. Such mixtures or emulsions mix with water to form an extinguishing agent that sustainably retains the water on the burning surfaces and therefore provides more sustainable and effective fire retardancy and cooling than water without the extinguishing additive.
• the extinguishing agent additive preferably contains about 50% of at least one polymer, preferably about 10% of at least one surfactant and preferably about 40% of at least one ester oil.
• the extinguishing agent additive in cases where the extinguishing agent additive is already applied in conjunction with its solvent or with its carrier, in particular in combination with water as a mixture or emulsion on the housing walls or on the housing bases or other components of the electrochemical energy storage, the extinguishing agent preferably a gelatinous, in particular viscous, consistency and preferably consists of about 28% of at least one polymer, about 6% of at least one surfactant, about 23% of at least one ester oil and about 43% of water.
• Extinguishing agent additive which is a gel or a viscous fluid is preferred.
• Other embodiments of the invention provide an extinguishing agent or extinguishing additive which is a solid or an elastically deformable material or which is contained in such a solid or elastically deformable material.
• extinguishing agents or extinguishing agent additives 7, 8 attached to the housing walls and extinguishing medium or extinguishing agent additives 9 mounted in the housing base
• extinguishing agents or extinguishing agent additives 10 are arranged between the electrochemical cells 2 this arrangement of the extinguishing agent or extinguishing agent additives preferably occurs in regions, as shown schematically in Fig. 2.
• FIG. 1 shows schematically in Fig. 2.
• FIG. 3 shows an exemplary embodiment of the invention in which the electrochemical cells 2 have no electrical absorber 3 led out of the cell housing or out of the cell package, but in which the electrochemical cells 2 are contacted via their cell walls or cell packaging side surfaces 11, so that a electrical series connection of a plurality of cells 2 can be effected in that the electrically conductive or at least partially conductive cell walls touch each other, as shown in Fig. 3.
• the extinguishing agent or extinguishing agent additives are in this embodiment arranged in regions on the cell walls 7, 8 or mounted on the bottom plate 9.
• the cell stack shown in Fig. 3 consists of two sub-stacks, each containing three cells, and which are connected via electrical Abieiter 3 and 6.
• the electrical connector 6 is designed so that between the two sub-cell stacks - -
• an extinguishing agent or an extinguishing agent additive 10 can be arranged.
• FIG. 4 schematically shows an embodiment of the invention in which electrochemical cells or their side walls are at least partially coated with an extinguishing agent or extinguishing agent additive 12.
• an extinguishing agent or extinguishing agent additive 12 When the cell packaging is broken, a fire resulting from the emergence of burning or combustible material can be inhibited by the extinguishing agents or extinguishing agent additives applied to the cell packaging walls.
• FIG. 5 shows an exemplary embodiment of the invention in which the electrochemical cells 2 are laminated on at least some areas with their side surfaces and the extinguishing agent 13 or with an extinguishing agent additive 13.
• contact elements or contact layers of electrically conductive material 14 are preferably provided, which effect the electrical interconnection of the cells with one another.
• the protruding from the cell housing or from the cell packaging Abieiter 3 of the cells as in other embodiments of the invention via a electrically conductive connector 6 are connected together.
• FIG. 6 shows an embodiment variant of the embodiment shown in FIG. 5, in which the wall coatings 7 and 8 and the floor coating 9 with the extinguishing agent or extinguishing agent additive are so expanded that these coatings reach the edges and walls of the electrochemical cells.
• the extinguishing agent or extinguishing agent additive 10 arranged between the sub-cell stacks is also so expanded that the space between the electrochemical cells and the space below the electrochemical cells are practically completely filled.
• FIG. 7 shows a further embodiment of the embodiments of the invention shown in FIGS. 5 and 6, in which also the spatial regions above and below the cell case edges, where preferably the arresters are led out of the cell housing or packaging with extinguishing agent or extinguishing agent additives 15, 16 and 17 are filled.

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• Chemical & Material Sciences (AREA)
• General Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Manufacturing & Machinery (AREA)
• Dispersion Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Battery Mounting, Suspending (AREA)
• Fire-Extinguishing Compositions (AREA)
• Sealing Battery Cases Or Jackets (AREA)
• Electric Double-Layer Capacitors Or The Like (AREA)
• Secondary Cells (AREA)

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• 2010
  • 2010-08-19 DE DE102010034825A patent/DE102010034825A1/de not_active Withdrawn
• 2011
  • 2011-08-17 JP JP2013525173A patent/JP2013541131A/ja active Pending
  • 2011-08-17 WO PCT/EP2011/004147 patent/WO2012022479A2/de active Application Filing
  • 2011-08-17 EP EP11758117.3A patent/EP2606521A2/de not_active Withdrawn
  • 2011-08-17 KR KR1020137006576A patent/KR20140004065A/ko not_active Application Discontinuation
  • 2011-08-17 US US13/817,367 patent/US20130209852A1/en not_active Abandoned
  • 2011-08-17 CN CN201180040111XA patent/CN103069608A/zh active Pending

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