WO2020020990A1 - Accumulateur d'énergie électrochimique - Google Patents

Accumulateur d'énergie électrochimique Download PDF

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Publication number
WO2020020990A1
WO2020020990A1 PCT/EP2019/069997 EP2019069997W WO2020020990A1 WO 2020020990 A1 WO2020020990 A1 WO 2020020990A1 EP 2019069997 W EP2019069997 W EP 2019069997W WO 2020020990 A1 WO2020020990 A1 WO 2020020990A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
cell
electrochemical energy
storage device
storage unit
Prior art date
Application number
PCT/EP2019/069997
Other languages
German (de)
English (en)
Inventor
Marius Cichon
Lars BOMMER
Michael Donotek
Original Assignee
Robert Bosch 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 filed Critical Robert Bosch Gmbh
Publication of WO2020020990A1 publication Critical patent/WO2020020990A1/fr

Links

Classifications

    • 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
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H01M10/6564—Gases with forced flow, e.g. by blowers using compressed gas
    • 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
    • H01M10/04—Construction or manufacture in general
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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
    • H01M2200/10—Temperature sensitive devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention is based on an electrochemical energy store comprising at least one electrochemical energy storage cell, a method for producing an electrochemical energy store and a use of the energy store according to the preamble of the independent claims.
  • the publication DE 10 2014 213 920 A1 discloses a battery system comprising a system housing in which at least one battery module with at least one electrochemical battery cell is arranged, the at least one battery cell having a cell housing with a degassing valve, the system housing having an input line to Lead gas is connected to the system housing and wherein the system housing is connected to an output line for leading gas from the system housing and wherein a fan for guiding gas through the system housing is arranged in the output line, with an expandable in the output line Gasauf acquisition is arranged, which is expandable by gas emerging from a battery cell.
  • Air conditioning system and an energy storage device having a Kreislaufme medium, which is accommodated in a container, and wherein the circuit medium can be at least partially derived from the container by a control device, the control device of the circuit medium supplying the energy storage device to the air conditioning system.
  • the publication DE 10 2013 016 797 A1 discloses a device for emergency cooling of at least one single cell for a battery, a storage unit being provided for a pressurized coolant, and the storage unit being coupled to a first end of a line which has a blocking element , by means of which a flow in the line can be regulated and / or controlled, where at least one throttle element with at least one outflow opening for narrowing a flow cross-section of the line is arranged at a second end of the line, wherein the at least one throttle element within a housing of the Battery and / or is arranged within a single cell and / or within a component of the single cell.
  • the procedure according to the invention with the characterizing features of the independent claims has the advantage that the energy store further comprises at least one storage unit for a gas under pressure, the storage unit comprising at least one outflow opening which is closed with at least one temperature-dependent closure, the shutter opens when a predetermined temperature threshold is exceeded, whereby the outflow opening is released.
  • the storage unit and the at least one energy storage cell are cooled by the falling temperature. This means that cooling is close to one Energy storage cell possible, which overheats due to an exothermic chemical reaction ("thermal runaway").
  • the exothermic chemical reaction can occur if handled incorrectly, for example due to excessive charging current or overheating, and / or damage, for example due to an accident.
  • an energy storage cell can burn down and / or explode and, in the worst case, heat and / or ignite further energy storage cells, which can lead to a chain reaction.
  • the storage unit is advantageously filled with an inert gas and / or an inert gas mixture, in particular carbon dioxide, nitrogen and / or argon.
  • An incombustible gas has the advantage that the risk of fire and / or explosion of the energy storage cell or the energy storage device is reduced by the escaping gas. Even if thermal runaway cannot be prevented, it is particularly possible to gain time to be able to bring people to safety.
  • the outflowing gas is supplied to the at least one energy storage cell by means of at least one predetermined flow channel, as a result of which oxygen is displaced and the risk of fire and / or the explosion of the energy storage cell or the energy storage device is reduced.
  • a pressure prevailing in the storage unit is substantially higher than the ambient pressure of the energy store, for example the atmospheric pressure.
  • the storage unit, the inert gas and / or the inert gas mixture comprises at least one additive, which is advantageously distributed with the outflowing gas.
  • the additive is advantageously foaming and / or gel-forming and / or has a fire-retardant effect, for example by displacing the oxygen. As a result, the risk of fire and / or the risk of explosion of the energy storage cell or of the energy store is further reduced.
  • the energy storage cell comprises a lithium-ion, lithium-sulfur, lithium-air, lithium-polymer cell, a solid electrolyte and / or a capacitor. This further increases the operational reliability of both energy stores with a high energy density and energy stores with a high power density.
  • a method for producing an electrochemical energy store according to the invention with at least one energy storage cell comprises the following steps:
  • an electrochemical energy store according to the invention is used in electrically driven vehicles including hybrid vehicles, in stationary electrical energy storage systems, in electrically operated hand tools, in portable devices for telecommunications or data processing, and in household appliances. This can further increase security and prevent or at least delay thermal runaway.
  • FIG. 1 shows a schematic illustration of a first embodiment of the energy store according to the invention.
  • FIG. 2 shows a schematic illustration of a second embodiment of the energy store according to the invention
  • FIG. 3 shows a schematic illustration of a third embodiment of the energy store according to the invention.
  • FIG. 1 shows a schematic representation of a first embodiment of the energy storage device according to the invention.
  • each of the energy storage cells 101 comprises at least one electrical pole 104 arranged on one end face.
  • the cell holder is, for example, a multi-part injection molded part , which includes receiving devices for the energy storage cells, for example in the form of cylindrical recesses.
  • the electrochemical energy store 100 comprises a storage unit 102, which is closed with a temperature-dependent closure 103.
  • An inert gas is stored in the storage unit 102, the pressure prevailing in the storage being substantially higher than the ambient pressure of the energy store 100.
  • current busbars have not been shown. 1 shows the energy store 100 with a plurality of energy storage cells 101 that can be electrically connected in series and / or in parallel.
  • Figure 2 shows a second embodiment of the energy storage according to the invention. In a section of the electrochemical energy store shown
  • the 200 it comprises a plurality of electrochemical energy storage cells 201, 205 and a multiplicity of storage units 202, 206, 210.
  • the electrochemical energy storage cells 201, 205 and the storage units 202, 206, 210 are arranged in a cell holder 220 of the energy store.
  • the energy storage cells 201, 205 are arranged in such a way that adjacent rows of energy storage cells 201, 205 have a different polarity on one end face of the energy storage cells 201, 205.
  • the storage units 202, 206, 210 are arranged in spatial proximity to the energy storage cells 201, 205.
  • the storage unit 202 which comprises a temperature-dependent closure 203, is in close proximity to the energy storage cells 201 (1), 201 (2), 201 (3), 201 (4), 201 (5), 201 (6 ) arranged.
  • the storage unit 206 is arranged in close proximity to the energy storage cells 205 (2), 205 (3), 205 (6) and also comprises a temperature-dependent closure 207.
  • the storage unit 210 is arranged in spatial proximity to further energy storage cells of the energy storage 200 and also comprises a temperature-dependent closure 211.
  • 201 a predetermined temperature threshold value of the temperature-dependent closure 203, it opens, whereby the outflow opening is opened and a pressurized gas mixture flows out. Due to the cooling effect that arises, all energy storage cells 201 (1), 201 (2), 201 (3), 201 (4), 201 (5), 201 (6) arranged in spatial proximity to the storage unit 202 are cooled, as a result of which a thermal Going through these energy storage cells is prevented.
  • FIG. 3 shows a schematic representation of a third embodiment of the energy storage device according to the invention.
  • the electro-chemical energy storage 300 shown comprises a plurality of electro-chemical energy storage cells 301 and a plurality of storage units 302.
  • a form of the storage units 302 differs from the energy storage cells 301 because the storage units 302 have the Surround energy storage cells 301.
  • the energy storage cells 301 (1), 301 (2), 301 (3), 301 (4) are surrounded by the storage units 302 (1), 302 (2), 302 (3), 302 (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un accumulateur d'énergie électrochimique (100, 200, 300) comprenant au moins une batterie d'accumulateurs d'énergie (101, 201, 301) électrochimique, l'accumulateur d'énergie comprenant en outre au moins une unité accumulatrice (102, 202, 206, 210, 302) pour un mélange gazeux se trouvant sous pression, l'unité accumulatrice comprenant au moins une ouverture d'écoulement qui est fermée avec au moins une fermeture dépendant de la température (103, 203, 207, 211, 303), la fermeture s'ouvrant lorsqu'un seuil de température prédéfini est dépassé, si bien que l'ouverture d'écoulement est libérée. Le gaz s'écoulant modifie sa température (effet Joule-Thomson). L'abaissement de température permet de refroidir l'unité accumulatrice ainsi qu'au moins une pile accumulatrice d'énergie.
PCT/EP2019/069997 2018-07-25 2019-07-25 Accumulateur d'énergie électrochimique WO2020020990A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018212344.6A DE102018212344A1 (de) 2018-07-25 2018-07-25 Elektrochemischer Energiespeicher
DE102018212344.6 2018-07-25

Publications (1)

Publication Number Publication Date
WO2020020990A1 true WO2020020990A1 (fr) 2020-01-30

Family

ID=67551344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/069997 WO2020020990A1 (fr) 2018-07-25 2019-07-25 Accumulateur d'énergie électrochimique

Country Status (2)

Country Link
DE (1) DE102018212344A1 (fr)
WO (1) WO2020020990A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022112724A1 (de) 2022-05-20 2023-11-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Batteriesystem mit Entgasungseinrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1168479A1 (fr) * 2000-06-26 2002-01-02 Alcatel Batterie de générateurs électrochimiques comprenant un dispositif de sécurité
US20050202310A1 (en) * 2003-10-03 2005-09-15 Yahnker Christopher R. Thermal management systems for battery packs
EP2045852A1 (fr) 2007-08-17 2009-04-08 Carl Freudenberg KG Agencement doté d'une climatisation et d'un dispositif de stockage d'énergie
DE102013016797A1 (de) 2013-10-10 2015-04-16 Daimler Ag Vorrichtung zur Notkühlung einer Batterie
DE102014213920A1 (de) 2014-07-17 2016-01-21 Robert Bosch Gmbh Batteriesystem
EP3333932A1 (fr) * 2016-12-06 2018-06-13 Samsung SDI Co., Ltd. Système de batterie

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012016801B3 (de) * 2012-08-23 2014-02-13 Audi Ag Kraftfahrzeug mit Batteriekühlung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1168479A1 (fr) * 2000-06-26 2002-01-02 Alcatel Batterie de générateurs électrochimiques comprenant un dispositif de sécurité
US20050202310A1 (en) * 2003-10-03 2005-09-15 Yahnker Christopher R. Thermal management systems for battery packs
EP2045852A1 (fr) 2007-08-17 2009-04-08 Carl Freudenberg KG Agencement doté d'une climatisation et d'un dispositif de stockage d'énergie
DE102013016797A1 (de) 2013-10-10 2015-04-16 Daimler Ag Vorrichtung zur Notkühlung einer Batterie
DE102014213920A1 (de) 2014-07-17 2016-01-21 Robert Bosch Gmbh Batteriesystem
EP3333932A1 (fr) * 2016-12-06 2018-06-13 Samsung SDI Co., Ltd. Système de batterie

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DE102018212344A1 (de) 2020-01-30

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