WO2015124223A1 - Ensemble accumulateur - Google Patents

Ensemble accumulateur Download PDF

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Publication number
WO2015124223A1
WO2015124223A1 PCT/EP2014/073313 EP2014073313W WO2015124223A1 WO 2015124223 A1 WO2015124223 A1 WO 2015124223A1 EP 2014073313 W EP2014073313 W EP 2014073313W WO 2015124223 A1 WO2015124223 A1 WO 2015124223A1
Authority
WO
WIPO (PCT)
Prior art keywords
individual cells
gas
accumulator
variable
length
Prior art date
Application number
PCT/EP2014/073313
Other languages
German (de)
English (en)
Inventor
Marc Lehmann
Helge Brenner
Bernhard Ehrlich
Ralf Joswig
Original Assignee
Johnson Controls Hybrid And Recycling 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 Johnson Controls Hybrid And Recycling Gmbh filed Critical Johnson Controls Hybrid And Recycling Gmbh
Publication of WO2015124223A1 publication Critical patent/WO2015124223A1/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
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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 invention relates to an accumulator arrangement with a plurality of individual cells according to claim 1.
  • Accumulator arrangements according to the preamble of claim 1 are z. B. from WO 2012/135758 AI or WO 2013/120770 AI known. Such accumulator arrangements with prismatic shaped individual cells find z. B. in electric and hybrid vehicles application. The plurality of individual cells is held together by a housing or a frame to form a compact Akkumulatorblock. Despite the already very advanced and well-developed accumulator technology, electric and hybrid vehicles are proving relatively slow in the market.
  • the object of the invention is to provide an improved accumulator arrangement which is further optimized in terms of weight, cost and functionality.
  • an accumulator arrangement having a multiplicity of individual cells which are each designed as electrochemical accumulator cells, wherein the individual cells are arranged in at least one row behind one another in a housing or a frame of the accumulator arrangement, wherein each individual cell has at least one Gasauslassstelle, and wherein the accumulator arrangement at least one over several or all in the row successively arranged individual cells whose Gasauslassstel
  • the gas collecting channel has length compensation means, through which at least a part of the gas collecting channel extends in the direction of the longitudinal extent of the row of the gas collecting channel Single cells whose gas outlet are connected to the Gassammeikanal, variable in length.
  • the invention has the advantage that a certain flexibility and adaptability is added to the gas collection channel by the at least one length-variable part of the gas collection channel.
  • the accumulator arrangement in which the individual cells are held together in a compact, relatively rigid accumulator block, can be optimized in various ways.
  • dimensional tolerances of components of the accumulator arrangement, in particular of the individual cells or of their attachment means can be compensated by the length changeability of the at least one part of the gas collection channel.
  • Another advantage is that even during operation of the accumulator arrangement occurring changes in the length of the arranged in a row of individual cells whose gas outlet are connected to the Gassammeikanal can be compensated by the Gassammeikanal can automatically adapt to such changes
  • the invention has the further advantage that now highly optimized individual cells can be used as accumulator cells, which can change their thickness reversibly depending on the respective state of charge.
  • the thickness of the single cell can increase with increasing state of charge (SOC) and decrease again as the state of charge of the individual cell decreases.
  • SOC state of charge
  • single cells can be used to form the accumulator assembly, which are formed with relatively lightweight, thin-walled housings of the single cells, which has a favorable effect in terms of weight and manufacturing costs of the accumulator assembly.
  • the invention makes it possible, so to speak, to use "breathing" single cells in the accumulator arrangement, without these individual cells or other components being exposed to an increased risk of damage.
  • the accumulator arrangement has a housing for accommodating the individual cells, the individual cells are completely or at least largely protected by the housing from external environmental influences. Through the housing can the individual cells are encapsulated, so to speak. If the accumulator arrangement has a frame for accommodating the individual cells, the individual cells are likewise securely fixed, as in a housing, and held together to form a compact accumulator block, but possibly less protected against external environmental influences.
  • the individual cells can basically have any housing shape, z. B. cylindrical or prismatic.
  • the prismatic housing may in particular be a cuboidal or at least approximately cuboidal housing.
  • the individual cells are z. B. lined up with their respective largest surface area housing side by side.
  • the accumulator arrangement can have one or more of the gas collection channels according to the invention. If only one gas collecting channel is provided, it can also be designed as a central degassing channel.
  • the Gassammeikanal may be formed in one or more parts. If the gas collecting duct is designed in several parts, it can, for. B. from a lower channel member which is placed on the individual cells, and an upper Abdeckbauelements have, which is placed on the lower channel member and forms together with the lower channel member a closed channel to the environment.
  • the at least one variable-length part of the gas collection channel can be designed variable in length in various ways. So the part z. B. draw harmonica-like or telescopic-like. Alternatively or additionally, the variable-length part of a flexible material, for. B. one
  • the variable-length part is formed on itself as a flexible component.
  • the at least one length-variable part of the gas collection channel is fixed to one, several or all individual cells whose gas outlet points are coupled to the gas collection channel. In this way, the gas collection channel can be securely fixed in an easy-to-mount manner.
  • the at least one length-variable part of the gas collection channel is arranged between the side of the individual cells having the gas outlet point and an upper cover component of the gas collection channel.
  • the cover component prefferably be designed as a component which is essentially rigid, not variable in length, in the direction of the longitudinal extension of the row of individual cells.
  • the at least one length-variable part of the gas collection channel is fixed to one or more connection poles of individual cells. In this way, the gas collection channel can be securely fixed in an easy-to-mount manner.
  • the at least one variable-length part of the gas collection channel has in each case flexible deformation regions arranged in the transition from an individual cell to an adjacent individual cell, which are each designed as length compensation elements.
  • the accumulator arrangement has at least one busbar arrangement for connecting a plurality of individual cells of the accumulator arrangement to a series circuit and the at least one variable-length part of the gas collection channel is arranged between the individual cells and the busbar arrangement.
  • the at least one variable-length part of the gas collecting channel has at least one sealing arrangement for each individual cell connected to the gas collecting channel, which seals the gas collecting channel from the environment and with the housing surface of the single cell in the area of the gas outlet or with a gas outlet the single cell connects.
  • the seal assembly is connectable as a separate component with the at least one variable-length part of the gas collection channel, in particular of one of the individual cells facing away from the at least one variable-length portion of the gas collection channel.
  • Figure 1 shows an accumulator assembly in the assembled state
  • Figure 2 shows the individual parts of the accumulator assembly of Figure 1 in an exploded view
  • Figure 3 shows a single cell with a mounting frame
  • Figure 5 shows the components according to Figure 4 in the assembled state and a
  • Figure 6 shows the components according to Figure 5 in the assembled state
  • Figure 7 shows the components according to Figure 4 in the assembled state in a
  • FIGS. 1 to 6 each show isometric views of the illustrated components.
  • the accumulator arrangement 1 shown in FIG. 1 reveals an arrangement of angled frame components 2, at the front ends of which respective end parts 3 are installed.
  • the frame members 2 and / or the end parts 3 may be made of metal or of an insulating material, for. B. made of plastic.
  • the individual parts of the accumulator assembly 1 are shown in the manner of an exploded view. Visible are the four angled frame members 2 and the respective end-side termination parts 3.
  • a combined busbar gas discharge arrangement 7 is provided, which is likewise arranged within the frame 2, 3 and is placed from above on the row arrangement 4 of the individual cells 5 ,
  • the figure 3 shows the example of a single cell 5 and a frame part 6 whose structure.
  • the single cell 5 has a z. B. substantially prismatic housing 9 with a housing top 10 on.
  • the z. B. is designed as a valve or as a predetermined breaking point of the housing wall 10, z. B. by the material of the housing wall 10 is weakened at this point.
  • the frame part 6 has, inter alia, a partition made of insulating material or provided with an insulating coating 8, over which the arranged in the row 4 individual cells 5 are electrically isolated from each other to avoid short circuits between the usually made of metal housings 9 , FIG.
  • the cell adapter part 14 which is shaped according to the via a gas collection channel to the connecting individual cells 5 of the array 4 and is placed from above on the terminal poles 11, 12 of the individual individual cells 5.
  • the cell adapter part 14 has respective pole receiving openings 15, which are arranged substantially at a distance from each other of the poles of adjacent individual cells.
  • length compensation elements 16 are arranged between the pole receiving openings, for. B. in the form of V-shaped, U-shaped, meandering or accordion-shaped material sections through which a certain change in distance between adjacent pole receiving openings 15 is allowed.
  • the cell lenadapterteil 14 can z. B. be made of a hard or soft plastic material, for. B. as a plastic injection molded part.
  • This region 17 has a respective opening 18 at or near the respective gas outlet 13 of an individual cell 5 to be arranged below the cell adapter part 14.
  • a sealing arrangement 19 is inserted into the area 17 as a further component.
  • the seal assembly 19 has respective individual cell seals 20 which are formed in the form of downwardly projecting sealing rings.
  • the single-cell seals 20 are annular and are in the assembled state of the accumulator sealingly on the housing top 10 and surround the respective gas outlet 13.
  • an upper cover 21 is present, which can be either rigid or variable in length.
  • the upper cover 21 may be made in particular as a rigid component made of plastic.
  • the upper cover member 21 can be placed on the cell adapter part 14, the sealing assembly 19 between the cell adapter part 14 and the upper cover 21 receiving, and locking lugs 23 which engage in corresponding recesses of the cell adapter part 14, are fixed thereto. This creates a gas channel which is sealed off from the surroundings and which leads gases leaving the individual cells 5 to a central gas outlet point 22 of the accumulator arrangement 1.
  • the seal assembly 19 may, for. B. be made of an elastomeric material.
  • FIG. 5 shows in the lower region the components previously explained with reference to FIG. 4, wherein the upper cover element 21 is already placed on the cell adapter part 14 to form the gas collection channel and the seal arrangement 19 is arranged therebetween. Furthermore, FIG. 5 shows in the upper part a busbar arrangement 24 which connects two terminal poles of adjacent individual cells to one another and in this way generates an electrical series connection of all individual cells 5. It can be seen that a busbar element of the busbar arrangement 24 has respective pole attachment regions 25, over which a busbar element can be screwed to the terminal poles of respective individual cells. Between the pole attachment openings 25 of a busbar element, this has a length compensation region 26, z. B. by a U-shaped, V-shaped, meander-shaped or accordion-shaped area.
  • the busbar elements of the busbar assembly 24 are of course made of electrically conductive material, in particular of metallic material such. As copper, zinc, nickel or alloys thereof.
  • the busbar assembly 24 further includes an electrical conductor assembly 27 via which a connector 28 of the busbar assembly 24 is connected to each individual cell of the accumulator assembly. About the connector 28 monitoring of the individual cells, z. B. on the voltage and state of charge, are performed.
  • FIG. 6 shows the arrangement 7 of the components explained in FIG. 5 in the assembled state, ie. H. when mounted on the gas collection assembly busbar assembly 24th
  • FIG. 7 shows the components explained with reference to FIG. 4 in the assembled state, d. H. as shown below in Figure 5, but in a view from above.

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 ensemble accumulateur comprenant une pluralité d'éléments distincts qui sont constitués chacun par un élément d'accumulateur électrochimique, les éléments étant disposés en au moins une rangée les uns à la suite des autres dans un carter ou un châssis de l'ensemble accumulateur, chaque élément présentant au moins une zone de sortie de gaz et l'ensemble accumulateur présentant au moins un canal collecteur de gaz qui est disposé sur plusieurs éléments ou sur la totalité des éléments disposés les uns à la suite des autres en une rangée et qui relie entre elles les zones de sortie de gaz de ces éléments ; le gaz sortant des éléments peut être envoyé par ce canal à une zone centrale de sortie de gaz de l'ensemble accumulateur en restant isolé de l'environnement, le canal collecteur de gaz présentant des moyens de compensation de la longueur grâce auxquels il est possible de modifier la longueur d'au moins une partie du canal collecteur de gaz dans la région de l'extension longitudinale de la rangée d'éléments dont les zones de sortie de gaz sont reliées au canal collecteur de gaz.
PCT/EP2014/073313 2014-02-18 2014-10-30 Ensemble accumulateur WO2015124223A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014102053.7 2014-02-18
DE102014102053.7A DE102014102053A1 (de) 2014-02-18 2014-02-18 Akkumulatoranordnung

Publications (1)

Publication Number Publication Date
WO2015124223A1 true WO2015124223A1 (fr) 2015-08-27

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ID=51842536

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/073313 WO2015124223A1 (fr) 2014-02-18 2014-10-30 Ensemble accumulateur

Country Status (2)

Country Link
DE (1) DE102014102053A1 (fr)
WO (1) WO2015124223A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023070399A1 (fr) * 2021-10-27 2023-05-04 宁德时代新能源科技股份有限公司 Batterie, dispositif électrique et procédé de fabrication de batterie

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118753A1 (de) * 2016-10-04 2018-04-05 Johnson Controls Advanced Power Solutions Gmbh Energiespeichersystem
CN106784519B (zh) * 2017-01-16 2023-08-11 河南创力新能源科技股份有限公司 一种用于蓄电池组的自动限位防短路补加液系统
CN112331992B (zh) * 2019-11-08 2021-12-03 宁德时代新能源科技股份有限公司 电池包及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091431A2 (fr) * 1999-10-08 2001-04-11 Matsushita Electric Industrial Co., Ltd. Dispositif d'évacuation de gaz pour bloc de batteries
US20050130033A1 (en) * 2002-06-17 2005-06-16 Akira Iwamura Combined battery and battery holding frame
DE102005045418B3 (de) * 2005-09-23 2006-11-30 Varta Automotive Systems Gmbh Akkumulator, Akkumulatorblock und Verfahren zur Herstellung derselben
WO2012135758A1 (fr) 2011-03-31 2012-10-04 Johnson Controls Technology Llc Module de batterie et procédé comprenant un boîtier externe et un revêtement
WO2013120770A1 (fr) 2012-02-18 2013-08-22 Johnson Controls Advanced Power Solutions Gmbh Ensemble contenant un premier et un second composant et procédé de production d'un tel ensemble

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5181327B2 (ja) * 2007-10-25 2013-04-10 本田技研工業株式会社 蓄電装置
JP5331517B2 (ja) * 2008-04-14 2013-10-30 日産自動車株式会社 組電池、および組電池を搭載した車両

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091431A2 (fr) * 1999-10-08 2001-04-11 Matsushita Electric Industrial Co., Ltd. Dispositif d'évacuation de gaz pour bloc de batteries
US20050130033A1 (en) * 2002-06-17 2005-06-16 Akira Iwamura Combined battery and battery holding frame
DE102005045418B3 (de) * 2005-09-23 2006-11-30 Varta Automotive Systems Gmbh Akkumulator, Akkumulatorblock und Verfahren zur Herstellung derselben
WO2012135758A1 (fr) 2011-03-31 2012-10-04 Johnson Controls Technology Llc Module de batterie et procédé comprenant un boîtier externe et un revêtement
WO2013120770A1 (fr) 2012-02-18 2013-08-22 Johnson Controls Advanced Power Solutions Gmbh Ensemble contenant un premier et un second composant et procédé de production d'un tel ensemble

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023070399A1 (fr) * 2021-10-27 2023-05-04 宁德时代新能源科技股份有限公司 Batterie, dispositif électrique et procédé de fabrication de batterie

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