WO2014048628A1 - Système de dégazage d'accumulateurs - Google Patents
Système de dégazage d'accumulateurs Download PDFInfo
- Publication number
- WO2014048628A1 WO2014048628A1 PCT/EP2013/066634 EP2013066634W WO2014048628A1 WO 2014048628 A1 WO2014048628 A1 WO 2014048628A1 EP 2013066634 W EP2013066634 W EP 2013066634W WO 2014048628 A1 WO2014048628 A1 WO 2014048628A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accumulator
- receiving element
- receiving
- absorber
- guide
- Prior art date
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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/392—Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- 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
-
- 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
-
- 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 battery technology in vehicles or stationary or mobile devices.
- the present invention relates to a system for degassing of batteries and a vehicle, in particular electric or hybrid vehicle with a system according to the invention.
- Electric or hybrid vehicles have accumulators for energy storage
- lithium ion batteries which type are characterized by a high energy density, high thermal stability and a negligible memory effect.
- a pressure may build up in the case of internal faults or even incorrect wiring, which pressure can lead to bursting of the housing or of the outer sheath of the rechargeable battery unit.
- a bursting process usually occurs accumulator material, for example, electrolyte, and contaminates the environment of the accumulator.
- the accumulator material may contain solvents, for example diethyl carbonate and / or conductive salts, for example LiPF6.
- the solvents may be flammable and in particular explosive
- Solvent vapor-air mixtures produce, while conductive salts can split off highly aggressive hydrofluoric acid (hydrogen fluoride - HF), in particular by reaction with moisture.
- accumulator materials can contaminate the environment of a battery unit in the event of a fault when the housing bursts and, in the worst case, impair the function of further accumulator units or adjacent control units.
- the risk of bursting of the housing of an accumulator unit can be reduced by providing a rupture disk in the housing; an accumulator unit which is under excessive internal pressure thereby blows off at a predetermined point.
- Accumulator banks combined and a variety of Akkumulatorbänken in larger applications turn to accumulator cabinets.
- an accumulator cabinet or the accumulator bank is detected when blowing off a
- Accumulator units and in particular lithium ion batteries are used in various types of vehicles on the road, rail, in the water or in the air and in stationary or mobile devices.
- such a system provides a possibility from a
- Accumulator cabinet is contaminated by accumulator material.
- guide elements or tubes or a hose system can be provided, which connects a battery unit suitable with the receiving element.
- the accumulator material can be solid or (tough) liquid and, on the other hand, gaseous.
- the receptacle may be configured to receive and securely bind at least one type, but preferably all types or types of accumulator material.
- a receiving element may further provide suitable absorbent material, for example gelling agent, which securely binds outgoing electrolyte.
- absorption material for gaseous accumulator material can also be provided.
- This further absorption material can either be in the same receiving element or in a downstream receiving element or
- the system may include a vent to relieve pressure from the system, but without allowing accumulator material to escape. In the event that a significant pressure is built up in the degassing, this may also have a pressure element, such as a bursting foil.
- the guide elements or the tube system may / may preferably be designed to be transparent, so that accumulator material residues located in the guide element can be detected by a signal, for example an optical signal, by viewing the guide element
- Accumulator be provided, for example, responsive to electrolyte, solvent and / or gaseous accumulator material.
- the inventive system for degassing of accumulators the atmosphere around a defective accumulator remains respirable, is not explosive and does not have a corrosive effect on electronics and structural components. Also, non-damaged accumulator units may continue to be used until repaired, that is, a system is stabilized until repair or replacement of a defective accumulator unit, and remains at least partially operational, such that a vehicle, for example, in an emergency, up to one Workshop can continue.
- electrolyte-contaminated vanes or absorbers can, in particular due to provided indicator elements, can be easily recognized by eye and are therefore safely exchangeable.
- Figure 1 shows an exemplary embodiment of a system for degassing of batteries according to the present invention.
- each accumulator unit 4 has a sealed housing 6, in which the accumulator elements of the respective accumulator unit are housed.
- Each accumulator unit 4 may have a valve element or pressure relief valve, for example a bursting disk element 10.
- each accumulator unit 4 is connected to a receiving element 12 using a guide element 8, for example a suitable tube.
- the receiving element 12 or reservoir is to receive from the
- Accumulator material may be gaseous and / or solid-liquid.
- Valve elements 10 such as rupture disc elements or Berstfolienemia, on
- Receiving element 12 may be provided and in particular decouple individual guide elements 8 relative to the receiving element 12.
- Accumulator material can first propagate in the associated guide element 8 and then in the receiving element 12.
- the receiving element 12 has, for example, absorber material 14a, which can receive and bind the emerging accumulator material.
- the absorber material 14a may in particular be designed for solid or liquid or viscous accumulator material, while gaseous accumulator material can be forwarded.
- a further absorber element 18 may be connected to the receiving element 12 using a further guide element 8.
- the arrangement of absorber element 18 and receiving element 12 may in this case be designed such that occurring gaseous accumulator material from the receiving element 12 in the
- Absorber element 18 can be flowed.
- the absorber element 18 can in the following
- Absorber 14b be arranged to receive and bind, at least the aggressive components, the gaseous accumulator material.
- a valve element 10 e.g. a Berstfolienelement be provided, which opens the entire system to the atmosphere, so that thereby a pressure in the system is degradable.
- Both the receiving element 12 and the absorber element 18 can have an indicator element 16a, b for indicating to what extent accumulator material has penetrated into the receiving element 12 or the absorber element 18 and has been bonded there.
- the individual accumulator units 4 can have, in addition to or on the valve elements, adapters to which the conductor elements 8 can be coupled.
- Adapters and guide elements 8 or hoses can be made, for example, from transparent polyethylene (PE) or polypropene (PP).
- PE polyethylene
- PP polypropene
- Teflon, Teflon FEP or PFA transparent fluoropolymers
- the guide elements 8 may be provided on the accumulator 4 with an adapter which engages in a counter element on the accumulator 4, is inserted into this, for example.
- This adapter may for example be formed of aluminum and mounted on the housing 6 of the accumulator 4, in particular with this be welded.
- the guide element connection can in turn be reversibly and tightly brought into engagement with the connection element on the accumulator unit 4.
- valve element or a rupture disk is provided on an accumulator unit 4, this can be integrated in particular in the connection of the guide element 8.
- a further valve element in the housing of the accumulator 4 may be provided, which, however, at a significantly higher, especially catastrophic
- Pressure buildup responds, which pressure build-up by the system according to the invention for degassing a battery unit may not be degradable.
- valve elements 10 and Berstfolieniata may also be provided which burst at an overpressure in the guide element 8 and thus allow emptying of accumulator material or electrolyte of a defective cell in the reservoir.
- the remaining, undamaged accumulator units are protected by their valve elements 10 from contamination by leaking accumulator material of the defective accumulator unit and remain usable.
- Guide elements 8 can be designed as smooth tubes or corrugated tubes. In a smooth hose accumulator material accumulations are better visible, while corrugated hoses are better protected against kinking.
- a plurality of accumulator units 4 (for example 2, 3 up to 100 or more) can be connectable to a receiving element 12 using a plurality of guide elements 8, in particular in that the probability of the defect of an accumulator unit is low.
- Receiving element 12 may also be made of a transparent material, for example PE, PP or fluoropolymers. Possible production methods are blow molding or injection blow molding, injection molding or welding.
- the receiving element 12 preferably has such a volume that at least the accumulator material content of an accumulator unit 4 can be collected. More preferably, the content a plurality (for example 2, 3 or 4) of accumulator units 4 are received.
- the design principle of the receiving element 12 is comparable to a wash bottle.
- a guide element 8 leads in the interior of the receiving element 12 to shortly before or above the absorber material 14a, while on the upper side of the receiving element 12, an exhaust port is provided in particular with a valve element 10 and a Berstfolienelement.
- the receiving element 12 may preferably be filled with an absorbent material 14a or a gelling agent for solvents. This absorber material e.g. swells through
- Suitable gelling agents are, for example, cotton wool or polyester (PET) or pelleted waxes.
- An indicator element 16 for example a color indicator for solvents, can be used in the
- Receiving element 12 may be provided.
- solvent-soluble dye may be provided in a granule, for example
- Rhodamine 6G or the solvatochrome dye MOED which, for example, turns red in solvent or dissolves. This makes it easy to see visually to what extent the receiving element 12 has accumulator material or solvent. Also
- the exhaust gas of the receiving element 12 can be relaxed via an absorber element 18, for example a hydrogen fluoride absorber, to the ambient atmosphere, whereby the escape of HF is prevented.
- the housing of the absorber element 16 may be constructed, for example, tubular and have a connection for a guide element 8.
- absorber material 14b for example soda-lime granules or
- Limestone granules (CaC03) may be provided. As a result, hydrogen fluoride is absorbed before it exits into the atmosphere. As the last layer before the atmosphere can be provided in the absorber element 18, a layer of activated carbon, which remaining Solvent or hydrogen fluoride absorbed. Before passing to the slide can
- Absorber element 18 have a further valve element 10 or a Berstfolienelement.
- valve elements 10 or Berstfolien 1952 can be performed for example as a thin PE film or fluoropolymer film, which breaks at a defined pressure.
- the valve element 10 may be attached to one end of a guide element 8, for example, be welded, or the guide element 8 itself is welded shut and defined thinned so that it opens at a defined pressure.
- a guide element 8 for example, be welded, or the guide element 8 itself is welded shut and defined thinned so that it opens at a defined pressure.
- the opening pressure or Zerknalldruck can be adjusted.
- the bursting pressure of a valve element 10 of an accumulator unit 4 may be greater, in particular much greater than that of a valve element 10 of the receiving element 12, which in turn is greater than that of one
- Valve element 10 of the guide element of a cell and this in turn greater than the bursting pressure of the valve element 10 of the absorber element 18th
- indicator elements those may be provided for acid and for hydrogen fluoride.
- acid indicators or pH indicators for example, thymol blue or
- Methyl orange be provided, which both stain red with acid. Also conceivable is bromothymol blue, which is colored green in the neutral state but is colorless on contact with acid.
- an indicator element for hydrogen fluoride for example, red iron rhodanide, which is decolorized by fluoride.
- the indicators can be embodied as paper, as a thin layer or in granules as a powder or as a coating of the absorber granules. The indicators can either be in the
- Guide elements 8 or be housed in the absorber granules 14a, b or at both points. An outlet can also be detected by an electrical conductivity probe, this 2 metallic electrodes are housed in the receiving element 12 and monitored their resistance, trapped electrolyte changes the resistance. In the simplest case, a smooth-cut coaxial cable serves as the electrode in tank 12. Any other level sensor is also suitable.
- a defective case arises here as follows. A defective accumulator unit 4 internally builds up pressure and opens a first valve element 10, which may be provided in the transition between accumulator unit 4 and guide element 8. Accumulator material or electrolyte flows under pressure into the guide element 8, discolored an indicator element possibly arranged there and reaches a valve element 10 before
- Receiving element 12 With a suitable pressure, the respective valve element 10 opens, whereby accumulator material flows into the receiving element 12 and in particular is bound there by absorber material 14a, for example gelled with gelling agent. An indicator element provided in the receiving element 12 may become discolored.
- Hydrogen fluoride exhaust gas possibly arising leaves the receiving element 12 via the further guide element 8, enters the absorber element 18 and is bound there by the absorber material 14b. Any remaining vapors are bound in any activated carbon. A residual gas pressure can in turn open valve element 10 on the absorber element 18, whereby the overpressure can ultimately be delivered to the atmosphere. The remaining, functional
- Absorber element 18 and all guide elements 8 removed which have come into contact with accumulator material or lead to the filled receiving element.
- these can be partially reused, for example, clean hoses are cut off. Spare parts can subsequently be mounted in a clean atmosphere, which restores the operational readiness of the entire accumulator system.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
L'invention concerne un système (2) de dégazage d'accumulateurs, présentant au moins une unité d'accumulateurs (4) comprenant un boîtier étanche (6) pourvu d'au moins un élément accumulateur; caractérisé en ce que le système présente par ailleurs un élément de guidage (8) et un élément de réception (12); l'élément de guidage (8) pouvant être relié à l'unité d'accumulateurs et à l'élément de réception (12); l'élément de guidage (8) étant conçu pour, en cas de panne, guider de la substance d'accumulateurs de la au moins une unité d'accumulateurs (4), du boîtier (6) vers l'élément de réception (12).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012217383.8A DE102012217383A1 (de) | 2012-09-26 | 2012-09-26 | System zur Entgasung von Akkumulatoren |
DE102012217383.8 | 2012-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014048628A1 true WO2014048628A1 (fr) | 2014-04-03 |
Family
ID=48918438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/066634 WO2014048628A1 (fr) | 2012-09-26 | 2013-08-08 | Système de dégazage d'accumulateurs |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102012217383A1 (fr) |
WO (1) | WO2014048628A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015001167A1 (de) | 2015-02-02 | 2016-08-04 | Entex Rust & Mitschke Gmbh | Entgasen bei der Extrusion von Kunststoffen |
DE102017001093A1 (de) | 2016-04-07 | 2017-10-26 | Entex Rust & Mitschke Gmbh | Entgasen bei der Extrusion von Kunststoffen mit Filterscheiben aus Sintermetall |
DE102015002319A1 (de) * | 2015-02-25 | 2016-08-25 | Stöbich Technology Gmbh | Akkumulator |
DE102017004563A1 (de) | 2017-03-05 | 2018-09-06 | Entex Rust & Mitschke Gmbh | Entgasen beim Extrudieren von Polymeren |
DE102018001412A1 (de) | 2017-12-11 | 2019-06-13 | Entex Rust & Mitschke Gmbh | Entgasen beim Extrudieren von Stoffen, vorzugsweise von Kunststoffen |
WO2021059206A1 (fr) * | 2019-09-27 | 2021-04-01 | 3M Innovative Properties Company | Détection et capture de sous-produits toxiques contenant du fluor de blocs de cellules électrochimiques |
FR3129531B1 (fr) * | 2021-11-25 | 2024-03-08 | Airbus Operations Sas | Ensemble pour un véhicule comportant une pluralité de batteries et un système d’évacuation |
CN116964844A (zh) * | 2022-01-21 | 2023-10-27 | 宁德时代新能源科技股份有限公司 | 储能系统 |
DE102022115583A1 (de) | 2022-06-22 | 2023-12-28 | Volkswagen Aktiengesellschaft | Sicherheits-Batteriesystem mit kontrollierter Entgasungsfunktion |
DE102022116354A1 (de) | 2022-06-30 | 2024-01-04 | Faurecia Emissions Control Technologies, Germany Gmbh | Separationsvorrichtung für einen Batteriespeicher und Batteriespeicher |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2331450A (en) * | 1939-11-28 | 1943-10-12 | Sonotone Corp | Rechargeable storage battery |
GB791139A (en) * | 1954-07-16 | 1958-02-26 | Peter Josef Moll | Improvements relating to electric batteries |
US2922833A (en) * | 1955-02-28 | 1960-01-26 | Accumulatoren Fabrik Ag Fa | Pressure responsive safety device |
JP2009087900A (ja) * | 2007-10-03 | 2009-04-23 | Nec Tokin Corp | リチウムイオン二次電池 |
DE102008007669A1 (de) * | 2008-02-06 | 2009-08-13 | Robert Bosch Gmbh | Batterie mit Entgasungseinrichtung |
DE102009000660A1 (de) * | 2009-02-06 | 2010-08-12 | Robert Bosch Gmbh | Batteriemodul |
DE102010039976A1 (de) * | 2010-08-31 | 2012-03-01 | Sb Limotive Company Ltd. | Batterie mit einem Schutz von Nachbarzellen beim Abblasen einer Batteriezelle |
WO2013164149A1 (fr) * | 2012-05-02 | 2013-11-07 | Robert Bosch Gmbh | Procédé et dispositif pour juger de l'état d'un accumulateur électrochimique et système d'accumulation électrochimique |
-
2012
- 2012-09-26 DE DE102012217383.8A patent/DE102012217383A1/de not_active Withdrawn
-
2013
- 2013-08-08 WO PCT/EP2013/066634 patent/WO2014048628A1/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2331450A (en) * | 1939-11-28 | 1943-10-12 | Sonotone Corp | Rechargeable storage battery |
GB791139A (en) * | 1954-07-16 | 1958-02-26 | Peter Josef Moll | Improvements relating to electric batteries |
US2922833A (en) * | 1955-02-28 | 1960-01-26 | Accumulatoren Fabrik Ag Fa | Pressure responsive safety device |
JP2009087900A (ja) * | 2007-10-03 | 2009-04-23 | Nec Tokin Corp | リチウムイオン二次電池 |
DE102008007669A1 (de) * | 2008-02-06 | 2009-08-13 | Robert Bosch Gmbh | Batterie mit Entgasungseinrichtung |
DE102009000660A1 (de) * | 2009-02-06 | 2010-08-12 | Robert Bosch Gmbh | Batteriemodul |
DE102010039976A1 (de) * | 2010-08-31 | 2012-03-01 | Sb Limotive Company Ltd. | Batterie mit einem Schutz von Nachbarzellen beim Abblasen einer Batteriezelle |
WO2013164149A1 (fr) * | 2012-05-02 | 2013-11-07 | Robert Bosch Gmbh | Procédé et dispositif pour juger de l'état d'un accumulateur électrochimique et système d'accumulation électrochimique |
Also Published As
Publication number | Publication date |
---|---|
DE102012217383A1 (de) | 2014-03-27 |
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