WO2020037339A1 - Dispositif de mise en contact pour des éléments de batterie assemblés en un module - Google Patents

Dispositif de mise en contact pour des éléments de batterie assemblés en un module Download PDF

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Publication number
WO2020037339A1
WO2020037339A1 PCT/AT2019/060196 AT2019060196W WO2020037339A1 WO 2020037339 A1 WO2020037339 A1 WO 2020037339A1 AT 2019060196 W AT2019060196 W AT 2019060196W WO 2020037339 A1 WO2020037339 A1 WO 2020037339A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
battery cells
contacting device
degassing
outgassing
Prior art date
Application number
PCT/AT2019/060196
Other languages
German (de)
English (en)
Inventor
Philipp KREISEL
Markus Kreisel
Johann Kreisel
Original Assignee
Raiffeisenlandesbank Oberösterreich Aktiengesellschaft
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 Raiffeisenlandesbank Oberösterreich Aktiengesellschaft filed Critical Raiffeisenlandesbank Oberösterreich Aktiengesellschaft
Priority to EP19732875.0A priority Critical patent/EP3841628A1/fr
Publication of WO2020037339A1 publication Critical patent/WO2020037339A1/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
    • H01M50/30—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
    • H01M50/50—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
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H01M6/5038—Heating or cooling of cells or 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic

Definitions

  • the invention is therefore based on the object of designing a contacting device of the type described in such a way that both electrical and thermal stress on neighboring cells of a gassing battery cell is avoided.
  • the invention achieves the stated object in that the cell receptacles have outgassing valves which are connected to the connecting conductors in a tensile manner, and in that a degassing area connects to the outgassing valves.
  • the outgassing of a battery cell arranged in the respective cell receptacle has the result that the excess pressure forming in the cell receptacle causes the outgassing valve of this cell receptacle to open.
  • the degassing valve is connected to the connecting conductor for the battery cell in tension-resistant manner, opening the valve can not only dissipate the build-up of excess pressure, but also separate the electrical connection of the battery cell concerned, regardless of the electrical operating parameters and also independently of the prevailing temperature .
  • the outgassing valve is connected to the connecting conductor in such a way that a Opening the degassing valve results in an electrical disconnection of the connection conductor. So that not only the evolving hot gas is discharged, but also an opening of the outgassing valve is made possible in any case, a degassing area for the hot gas is connected to the outgassing valve.
  • connection conductors can be achieved by the covers being pushed through by the connection conductors.
  • a tension-resistant connection between the connection lines and the outgassing valves basically means any connection that is suitable for electrically disconnecting the connection line when the valve is opened. In its simplest form, this means mechanical tearing off of the connection conductor.
  • a connection conductor can be welded to a pole of a round cell and cover a cell holder for this round cell so that when the round cell is outgassed, the cover is released and the weld seam or the connection conductor itself breaks.
  • the cover does not have to completely close the cell receptacle, but it is sufficient if the cover has a throttle opening penetrated by a contact spring as a connecting conductor. Due to the amount of hot gas escaping a safe opening of the outlet valve can thereby be achieved, the pressure which builds up being able to be partially discharged even before its opening, which overall leads to a safe removal of the hot gas which develops.
  • This effect can be further improved by providing fire protection between the degassing areas and the contact points.
  • thermal insulation or separate cooling of the intermediate space can also be provided.
  • the base plate on the side opposite the cell receptacles include blind holes, the lateral surfaces of which have passage openings to the cell receptacles.
  • a filling compound such as a simple adhesive point can be introduced into these blind holes, which lies against the respective cell wall through the passage openings to the cell receptacles.
  • FIG. 1 is a partially broken top view of a contacting device according to the invention.
  • Fig. 2 shows a section along the line II - II of FIG. 1 with the battery cells inserted.
  • a contacting device comprises a base plate 1, which has cell receptacles 2 on one side for the end sections of individual battery cells 3.
  • contact points 4 are provided, which are shown in the drawing as clamping receptacles for battery cells 3 of a further contacting device (not shown).
  • any other form of electrical connection can also be understood as a contact point 4, in particular also a busbar for the individual battery cells 3.
  • connection conductors 5 which, in the embodiment shown, are designed as spiral contact springs which are connected to the battery cells 3 via a weld seam.
  • these connection conductors 5 act as covers for the cell receptacles 2, outgassing valves 6.
  • These outlet valves 6 form a stop for the radially outer spiral passages of the connection conductors 5 and are thus connected to this in a tensile manner.
  • Degassing areas 7 are provided between the cell receptacles 3 and the contact points 4, which form receptacles for the outgassing valves 6 designed as covers.
  • the covers themselves are clamped in openings provided for the cell receptacles 2 and close the cell receptacles 2 upwards relative to the degassing areas 7.
  • the associated connecting conductor 5 is cut and the battery cell 3 loses its electrical contact with the contact point 4.
  • the covers do not have to completely close off the cell receptacles 2, but can, as can be seen in FIG. 2, be broken by a throttle opening 8 ,
  • fire protection 9 is provided between the degassing areas 7 and the contact points 4 and shields the outflowing industrial gas from the contact points 4. Because the individual degassing areas 7 can be connected to form a degassing duct, the resulting industrial gas can be safely discharged within the proposed contact device without jeopardizing neighboring battery cells 3. These are largely protected by the Ausga designed as cover valves 6.
  • the base plate 1 on the side opposite the cell receptacles 2 includes blind holes 10, the lateral surfaces of which have passage openings 11 to the cell receptacles 2.
  • a backfill material 12 can be introduced into these blind holes 10, which adjoins the battery cells 3 and fixes them in their position.
  • the filling material 12 can be, for example, a hardening filling compound such as an adhesive or a flarz.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne un dispositif de mise en contact pour des éléments de batterie à assembler en un module. Le dispositif est pourvu d'une plaque de base (1), qui présente sur une face des logements (2) d'éléments pour les parties d'extrémité d'éléments de batterie (3) individuels et sur la face opposée des points de contact (4), qui sont reliés à des conducteurs de connexion (5) électriques pour les éléments de batterie (3). L'objet de l'invention est de concevoir un dispositif de mise en contact de ce type, de telle sorte qu'une contrainte aussi bien électrique que thermique d'éléments voisins d'un élément de batterie émettant des gaz est évitée. À cet effet, les logements (2) d'éléments présentent des soupape d'émission de gaz (6), qui sont reliées de manière résistante à la traction aux conducteurs de connexion (5), et respectivement une zone de dégazage (7) se raccorde aux soupapes d'émission de gaz (6).
PCT/AT2019/060196 2018-08-24 2019-06-13 Dispositif de mise en contact pour des éléments de batterie assemblés en un module WO2020037339A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19732875.0A EP3841628A1 (fr) 2018-08-24 2019-06-13 Dispositif de mise en contact pour des éléments de batterie assemblés en un module

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50726/2018 2018-08-24
ATA50726/2018A AT521581B1 (de) 2018-08-24 2018-08-24 Kontaktierungsvorrichtung für zu einem Modul zusammengesetzte Batteriezellen

Publications (1)

Publication Number Publication Date
WO2020037339A1 true WO2020037339A1 (fr) 2020-02-27

Family

ID=67003139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2019/060196 WO2020037339A1 (fr) 2018-08-24 2019-06-13 Dispositif de mise en contact pour des éléments de batterie assemblés en un module

Country Status (3)

Country Link
EP (1) EP3841628A1 (fr)
AT (1) AT521581B1 (fr)
WO (1) WO2020037339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3890102A1 (fr) 2020-03-30 2021-10-06 Kreisel Electric GmbH & Co KG Dispositif doté d'un cadre comportant des logements pour des sections d'extrémité avant des cellules de batterie en parallèle par rapport à leur axe longitudinal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742599A1 (fr) 1995-05-12 1996-11-13 Sony Corporation Pile secondaire étanche
US20050212477A1 (en) * 2004-03-29 2005-09-29 Yasunori Uchida Connection member and battery pack
EP2104160A1 (fr) 2008-03-17 2009-09-23 Samsung SDI Co., Ltd. Batterie secondaire cylindrique
US20140120384A1 (en) * 2011-06-13 2014-05-01 Johnson Controls - Saft Advanced Power Solutions Llc Device for aiding in the fracture of a vent of an electrochemical cell
US20140308550A1 (en) 2011-11-11 2014-10-16 Panasonic Corporation Battery pack
US20150044539A1 (en) * 2013-08-12 2015-02-12 Optimum Battery Co., Ltd. Large capacity lithium-ion-battery pack
US20150372268A1 (en) * 2013-03-25 2015-12-24 Toyota Jidosha Kabushiki Kaisha Duct holding structure for battery assembly body

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742599A1 (fr) 1995-05-12 1996-11-13 Sony Corporation Pile secondaire étanche
US20050212477A1 (en) * 2004-03-29 2005-09-29 Yasunori Uchida Connection member and battery pack
EP2104160A1 (fr) 2008-03-17 2009-09-23 Samsung SDI Co., Ltd. Batterie secondaire cylindrique
US20140120384A1 (en) * 2011-06-13 2014-05-01 Johnson Controls - Saft Advanced Power Solutions Llc Device for aiding in the fracture of a vent of an electrochemical cell
US20140308550A1 (en) 2011-11-11 2014-10-16 Panasonic Corporation Battery pack
US20150372268A1 (en) * 2013-03-25 2015-12-24 Toyota Jidosha Kabushiki Kaisha Duct holding structure for battery assembly body
US20150044539A1 (en) * 2013-08-12 2015-02-12 Optimum Battery Co., Ltd. Large capacity lithium-ion-battery pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3890102A1 (fr) 2020-03-30 2021-10-06 Kreisel Electric GmbH & Co KG Dispositif doté d'un cadre comportant des logements pour des sections d'extrémité avant des cellules de batterie en parallèle par rapport à leur axe longitudinal

Also Published As

Publication number Publication date
AT521581A1 (de) 2020-03-15
EP3841628A1 (fr) 2021-06-30
AT521581B1 (de) 2020-07-15

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