WO2010071464A1 - A method for connecting poles of electric cells and a junction for poles of electric cells - Google Patents

A method for connecting poles of electric cells and a junction for poles of electric cells Download PDF

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Publication number
WO2010071464A1
WO2010071464A1 PCT/PL2009/050040 PL2009050040W WO2010071464A1 WO 2010071464 A1 WO2010071464 A1 WO 2010071464A1 PL 2009050040 W PL2009050040 W PL 2009050040W WO 2010071464 A1 WO2010071464 A1 WO 2010071464A1
Authority
WO
WIPO (PCT)
Prior art keywords
poles
shaping element
electric cells
supporting
covering
Prior art date
Application number
PCT/PL2009/050040
Other languages
French (fr)
Inventor
Marcin Paweł CIOSEK
Bartłomiej Stefan KRAS
Konrad Makomaski
Jérôme Jean HEILIGENSTEIN
Original Assignee
Impact Automotive Technologies Sp. Z O.O.
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 Impact Automotive Technologies Sp. Z O.O. filed Critical Impact Automotive Technologies Sp. Z O.O.
Priority to KR2020117000018U priority Critical patent/KR200473642Y1/en
Priority to DE212009000142U priority patent/DE212009000142U1/en
Publication of WO2010071464A1 publication Critical patent/WO2010071464A1/en

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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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • 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
    • H01M50/502—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
    • H01M50/543—Terminals
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • 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

  • This invention concerns a method for connecting poles of electric cells and a junction for poles of electric cells, used especially when producing and operating battery modules for supplying electric or hybrid cars.
  • Individual cells in a module may be electrically connected in series, parallel, or combination of both, i.e. series-parallel system, in order to provide a required voltage, amperage or battery capacity.
  • a positive pole and a negative one are led out in close proximity to one another as two thin metal plates made respectively of aluminum and copper.
  • poles pose a challenge of how to, by means of electrics, effectively connect electric cells into battery modules, because materials being connected have different electrochemical properties, and, when they are in contact, an electric cell is created in the presence of moisture, which substantially accelerates corrosion in such a connection and degrades electric and mechanical parameters. Higher resistance between connected poles generates more heat where the connection takes place, which, in turn, accelerates oxidation of an aluminum element in such a junction. Because of that additional bimetallic separators are used usually in the known solutions when cell terminals made of two different metals are being connected.
  • a pack of batteries comprising a set of cells connected in a series system by means of metal plates connecting positive poles with negative poles of neighboring cells.
  • cell poles are mutually connected by means of ultrasonic welding technique.
  • European Patent Application EP939956 a battery pack is also known in which tips of electrodes being connected are bent at an angle of 90° and connected in pairs to better use the space.
  • tips of electrodes being connected suitably located.
  • Contacted terminals of neighboring cells are connected by means of screw clamps, whereas the proper adherence of terminal tips in a substantial plane is provided due to their substantial thickness and, therefore, a suitable rigidity.
  • An additional object of this invention is to provide a junction that enables assembling cells into packs and their operation with lower risk of incidental short- circuits.
  • a method for connecting poles of electric cells by contacting flat poles of two neighboring electric cells and pressing them by means of a clamping element is characterized by that the poles of the neighboring electric cells are being clamped and simultaneously bent between a supporting and shaping element and a covering and shaping element.
  • the clamped poles are advantageously bent along at least one arched surface.
  • a junction of poles of electric cells in which poles of two neighboring electric cells remain in contact with one another and are clamped by a clamping element is characterized by that the poles of the neighboring electric cells are clamped between a supporting and shaping element and a covering and shaping element.
  • the supporting and shaping element as well as the covering and shaping element have arched or trapezoid- arched shaping surfaces.
  • the supporting and shaping element and/or the covering and shaping element are made of plastic.
  • a current lead-out is clamped between the supporting and shaping element and the covering and shaping element.
  • an insulating front plate is placed between a front part of the electric cells and the supporting and shaping element, said plate comprising oblong openings receiving the poles of said electric cells. Additionally, the poles of the particular electric cells are connected with an electronic plate.
  • the poles of two cells are profiled and successfully pressed against each other to take less space.
  • Shaping element is understood to be every element with a 3-D shaped, non-flat profiling surface, which gives flat poles of cells a bent profile while connecting them by clamping.
  • Fig. 1 shows a junction for poles of electric cells in a perspective view before clamping it
  • Fig. 2 shows a similar junction in a perspective view before clamping it
  • Fig. 3 shows the junction for the poles of electric cells in a perspective view before clamping it, with a current terminal located between a supporting shaping element and a covering shaping element;
  • Fig. 4 shows the supporting and shaping element in a perspective view
  • Fig. 5 shows the covering and shaping element in a perspective view
  • Fig. 6 shows an insulating front plate
  • Fig. 7 shows a plan view of a current lead-out of a battery module
  • Fig. 8 shows the battery module in a section through screws clamping the supporting and shaping elements, as well as the covering and shaping elements;
  • Fig. 9 shows a section through an assembled battery module
  • Fig. 10 shows components of the single battery module in a perspective view.
  • a junction for poles of electric cells 1 has a supporting and shaping element 2 and a covering and shaping element 3 with poles 4, 5 of the two neighboring electric cells 1 located between said elements, said poles 4, 5 contacting each other and being wrapped around said supporting and shaping element 2 and pressed through said covering and shaping element 3 by means of screws 6, which are clamping elements.
  • the supporting and shaping element 2 as well as the covering and shaping element 3 illustrated in Fig. 1 have their shaping surfaces made in an arc shape.
  • Fig. 2 a different junction for poles of the electric cells 1 is shown, in which the supporting and shaping element 2 as well as the covering and shaping element 3 have trapezoid-arched shaping surfaces. Said trapezoid-arched shape of these elements consists in that a cross section through their shaping surfaces is essentially created as an isosceles trapezium, whereas arms of said trapezium are determined by arched lines.
  • the construction of the junction according to this invention forces the contacting surfaces of the poles 4, 5 to shift one in relation to the other when they are clamped and simultaneously shaped by the supporting and shaping element 2 and covering and shaping element 3.
  • This relative shift between contacting surfaces of the poles 4, 5 is caused by the fact that the outer surface of the inner pole 4 is stretched during bending, whereas the inner surface of the outer pole 5 is squeezed during bending.
  • Such a connection in which surfaces of poles being connected are being rubbed against each other is characterized by a lower resistance, which is related to longer service life and greater efficiency of an electric connection.
  • Such a relative shift of cell poles against each other, with said poles being simultaneously shaped is achieved in each form of the supporting and shaping element 2 and of the covering and shaping element 3. There is no such effect in the known solutions when pressing flat cell poles by means of flat supporting and covering clamping elements.
  • Fig. 3 the junction according to the invention is shown. Said junction is connected with a current lead-out 7 and connects two furthermost electric cells 1.
  • Fig. 4 shows, in a perspective view, an embodiment of the supporting and shaping element 2 having an outer shaping surface.
  • This supporting and shaping element 2 has openings 8 receiving the screws 6, whereas the length of this shaping element is so selected that it is approximately equal to the width of the poles 4, 5.
  • the supporting and shaping element 2 is made of plastic, for example of polypropylene.
  • Fig. 5 shows in a perspective view the covering and shaping element 3 having an inner shaping surface.
  • This covering and shaping element 3 has openings 9 receiving the screws 6.
  • the length of said covering and shaping element 3 corresponds with the length of the cooperating supporting and shaping element 2.
  • the covering and shaping element 3 is made of plastic, for example of polypropylene, for similar reasons as the supporting and shaping element 2.
  • an insulating front plate 10 shown in Fig. 6 This insulating plastic front plate has openings 11 for the clamping screws 6 and two columns of oblong openings 12 for the poles 4, 5 of the electric cells 1. Said oblong openings 12 are equidistant in each column to ensure equal distance between junctions of the poles 4, 5 of the electric cells 1 in the battery module.
  • the first junction according to the invention to be connected to the positive pole of the uppermost cell in the battery module, as well as the last junction to be connected to the negative pole of the lowermost cell in the battery module are additionally provided with the current lead-out 7.
  • FIG. 7 A shape of said current lead-out is shown in Fig. 7.
  • FIG. 8 A part of a battery module 13 comprising a number of junctions according to the invention is shown in Fig. 8.
  • the poles 4, 5 of the electric cells 1 are led through the insulating plate 10 and are wrapped around the supporting and shaping elements 2 and pressed with the covering and shaping elements 3.
  • screws act as clamping elements.
  • the battery module 13 comprises an electronic plate 14 gathering a voltage from all the electric cells 1, said electronic plate 14 being connected to a battery control system.
  • the whole assembled battery module 13 is presented in the Fig. 9.
  • This module has a housing 15 which shelters a stack comprising nine electric cells 1 connected in series by means of junctions according to the invention.
  • FIG. 10 A perspective view of components of one battery module 13 before assembling them is illustrated in Fig. 10. This figure shows nine electric cells 1 partially moved out of the housing 5.
  • the insulating front plate 10 is laid onto the straight poles 4, 5 in order to connect the electric cells 1 of the battery module 13 so that they go through the oblong openings 12, and then suitable poles 4, 5 are wrapped in pairs around the supporting and shaping elements 2 and said poles are pressed with the covering and shaping elements 3 by means of the screws 6, and then the electronic plate 14 gathering the voltage from all the electric cells 1 is installed and connected with the battery control system.
  • the outermost junctions of the cell poles i.e. the upper left one and the lower right one, are additionally provided with the current out-leads 7.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A method for connecting and a junction especially for battery modules used in supply systems in cars having an electric or hybrid driving unit. According to the proposed method flat poles of two neighboring electric cells are made to touch each other and clamped together, and they are simultaneously bent between shaping elements. In a created junction poles (4, 5) of two neighboring electric cells (1) are clamped between a supporting and shaping element (2) and a covering and shaping element (3).

Description

A method for connecting poles of electric cells and a junction for poles of electric cells
This invention concerns a method for connecting poles of electric cells and a junction for poles of electric cells, used especially when producing and operating battery modules for supplying electric or hybrid cars. Individual cells in a module may be electrically connected in series, parallel, or combination of both, i.e. series-parallel system, in order to provide a required voltage, amperage or battery capacity. A positive pole and a negative one are led out in close proximity to one another as two thin metal plates made respectively of aluminum and copper. Such a construction of poles poses a challenge of how to, by means of electrics, effectively connect electric cells into battery modules, because materials being connected have different electrochemical properties, and, when they are in contact, an electric cell is created in the presence of moisture, which substantially accelerates corrosion in such a connection and degrades electric and mechanical parameters. Higher resistance between connected poles generates more heat where the connection takes place, which, in turn, accelerates oxidation of an aluminum element in such a junction. Because of that additional bimetallic separators are used usually in the known solutions when cell terminals made of two different metals are being connected.
From the Japan Patent Application JP2007323952 a pack of batteries is known comprising a set of cells connected in a series system by means of metal plates connecting positive poles with negative poles of neighboring cells. In order to provide a reliable, long life, and low resistance connection, cell poles are mutually connected by means of ultrasonic welding technique. From the European Patent Application EP939956 a battery pack is also known in which tips of electrodes being connected are bent at an angle of 90° and connected in pairs to better use the space. In order to have poles of neighboring cells properly adhered on a large surface area it is essential to have tips of electrodes being connected suitably located. Contacted terminals of neighboring cells are connected by means of screw clamps, whereas the proper adherence of terminal tips in a substantial plane is provided due to their substantial thickness and, therefore, a suitable rigidity.
It is an object of this invention to provide such a construction of a junction for poles of electric cells which ensures a suitable adherence of pole tips on a great plane and, in the result, a reliable and long-life electric connection of a small resistance to better use the space.
An additional object of this invention is to provide a junction that enables assembling cells into packs and their operation with lower risk of incidental short- circuits.
A method for connecting poles of electric cells by contacting flat poles of two neighboring electric cells and pressing them by means of a clamping element is characterized by that the poles of the neighboring electric cells are being clamped and simultaneously bent between a supporting and shaping element and a covering and shaping element.
The clamped poles are advantageously bent along at least one arched surface.
A junction of poles of electric cells in which poles of two neighboring electric cells remain in contact with one another and are clamped by a clamping element is characterized by that the poles of the neighboring electric cells are clamped between a supporting and shaping element and a covering and shaping element. In an advantageous solution the supporting and shaping element as well as the covering and shaping element have arched or trapezoid- arched shaping surfaces.
In an advantageous embodiment the supporting and shaping element and/or the covering and shaping element are made of plastic. In another advantageous solution a current lead-out is clamped between the supporting and shaping element and the covering and shaping element.
In a further advantageous solution an insulating front plate is placed between a front part of the electric cells and the supporting and shaping element, said plate comprising oblong openings receiving the poles of said electric cells. Additionally, the poles of the particular electric cells are connected with an electronic plate.
Through clamping of the flat and flexible poles of the neighboring cells between the supporting and shaping element and the covering and shaping element, the poles of two cells are profiled and successfully pressed against each other to take less space.
Shaping element, according to this invention, is understood to be every element with a 3-D shaped, non-flat profiling surface, which gives flat poles of cells a bent profile while connecting them by clamping.
A solution according to the invention is presented in its embodiments in the drawings where:
Fig. 1 shows a junction for poles of electric cells in a perspective view before clamping it;
Fig. 2 shows a similar junction in a perspective view before clamping it;
Fig. 3 shows the junction for the poles of electric cells in a perspective view before clamping it, with a current terminal located between a supporting shaping element and a covering shaping element;
Fig. 4 shows the supporting and shaping element in a perspective view; Fig. 5 shows the covering and shaping element in a perspective view;
Fig. 6 shows an insulating front plate;
Fig. 7 shows a plan view of a current lead-out of a battery module;
Fig. 8 shows the battery module in a section through screws clamping the supporting and shaping elements, as well as the covering and shaping elements;
Fig. 9 shows a section through an assembled battery module; and
Fig. 10 shows components of the single battery module in a perspective view.
As it is shown in Fig. 1 and 2 a junction for poles of electric cells 1 has a supporting and shaping element 2 and a covering and shaping element 3 with poles 4, 5 of the two neighboring electric cells 1 located between said elements, said poles 4, 5 contacting each other and being wrapped around said supporting and shaping element 2 and pressed through said covering and shaping element 3 by means of screws 6, which are clamping elements. The supporting and shaping element 2 as well as the covering and shaping element 3 illustrated in Fig. 1 have their shaping surfaces made in an arc shape. In Fig. 2 a different junction for poles of the electric cells 1 is shown, in which the supporting and shaping element 2 as well as the covering and shaping element 3 have trapezoid-arched shaping surfaces. Said trapezoid-arched shape of these elements consists in that a cross section through their shaping surfaces is essentially created as an isosceles trapezium, whereas arms of said trapezium are determined by arched lines.
According to the method being an object of this invention flat poles of two neighboring electric cells remain in contact with each other over a substantial part of their side surfaces and are being clamped together with simultaneously bending them between shaping elements. The supporting and shaping element 2 and the covering and shaping element 3 are used as said shaping elements, said clamping achieved by means of the screws 6. Before clamping the poles 4, 5 have a flat rectangular shape, and after clamping they assume a shape of pressing surfaces of the supporting and shaping element 2 and the covering and shaping element 3. The pole 4 contacted with the supporting and shaping element 2 is bent during clamping on the outside convex pressing surface of said shaping element, while the pole 5 contacted with the covering and shaping element is simultaneously bent on the pole 4 located below it. Therefore, the construction of the junction according to this invention forces the contacting surfaces of the poles 4, 5 to shift one in relation to the other when they are clamped and simultaneously shaped by the supporting and shaping element 2 and covering and shaping element 3. This relative shift between contacting surfaces of the poles 4, 5 is caused by the fact that the outer surface of the inner pole 4 is stretched during bending, whereas the inner surface of the outer pole 5 is squeezed during bending. Such a connection in which surfaces of poles being connected are being rubbed against each other is characterized by a lower resistance, which is related to longer service life and greater efficiency of an electric connection. Such a relative shift of cell poles against each other, with said poles being simultaneously shaped, is achieved in each form of the supporting and shaping element 2 and of the covering and shaping element 3. There is no such effect in the known solutions when pressing flat cell poles by means of flat supporting and covering clamping elements.
In Fig. 3 the junction according to the invention is shown. Said junction is connected with a current lead-out 7 and connects two furthermost electric cells 1.
Fig. 4 shows, in a perspective view, an embodiment of the supporting and shaping element 2 having an outer shaping surface. This supporting and shaping element 2 has openings 8 receiving the screws 6, whereas the length of this shaping element is so selected that it is approximately equal to the width of the poles 4, 5. In order to minimize a probability of accidental short-circuits during assembly and in operation of said junction, the supporting and shaping element 2 is made of plastic, for example of polypropylene.
Fig. 5 shows in a perspective view the covering and shaping element 3 having an inner shaping surface. This covering and shaping element 3 has openings 9 receiving the screws 6. The length of said covering and shaping element 3 corresponds with the length of the cooperating supporting and shaping element 2. The covering and shaping element 3 is made of plastic, for example of polypropylene, for similar reasons as the supporting and shaping element 2.
A further risk of short-circuits in operation of the junction according to this invention is limited by an insulating front plate 10 shown in Fig. 6. This insulating plastic front plate has openings 11 for the clamping screws 6 and two columns of oblong openings 12 for the poles 4, 5 of the electric cells 1. Said oblong openings 12 are equidistant in each column to ensure equal distance between junctions of the poles 4, 5 of the electric cells 1 in the battery module. To connect the neighboring battery modules into a set of modules the first junction according to the invention to be connected to the positive pole of the uppermost cell in the battery module, as well as the last junction to be connected to the negative pole of the lowermost cell in the battery module are additionally provided with the current lead-out 7. A shape of said current lead-out is shown in Fig. 7. A part of a battery module 13 comprising a number of junctions according to the invention is shown in Fig. 8. The poles 4, 5 of the electric cells 1 are led through the insulating plate 10 and are wrapped around the supporting and shaping elements 2 and pressed with the covering and shaping elements 3. In the illustrated embodiment screws act as clamping elements. Moreover, the battery module 13 comprises an electronic plate 14 gathering a voltage from all the electric cells 1, said electronic plate 14 being connected to a battery control system. The whole assembled battery module 13 is presented in the Fig. 9. This module has a housing 15 which shelters a stack comprising nine electric cells 1 connected in series by means of junctions according to the invention.
A perspective view of components of one battery module 13 before assembling them is illustrated in Fig. 10. This figure shows nine electric cells 1 partially moved out of the housing 5.
The insulating front plate 10 is laid onto the straight poles 4, 5 in order to connect the electric cells 1 of the battery module 13 so that they go through the oblong openings 12, and then suitable poles 4, 5 are wrapped in pairs around the supporting and shaping elements 2 and said poles are pressed with the covering and shaping elements 3 by means of the screws 6, and then the electronic plate 14 gathering the voltage from all the electric cells 1 is installed and connected with the battery control system. Moreover, the outermost junctions of the cell poles, i.e. the upper left one and the lower right one, are additionally provided with the current out-leads 7.

Claims

Claims
1. A method for connecting poles of electric cells by contacting flat poles of two neighboring electric cells and pressing them by means of a clamping element is characterized by that the poles (4, 5) of the neighboring electric cells (1) are being clamped and simultaneously bent between a supporting and shaping element (2) and a covering and shaping element (3).
2. A method according to Claim 1 characterized in that the clamped poles (4, 5) are bent along at least one arched surface.
3. A junction of poles of electric cells in which poles of two neighboring electric cells remain in contact and are clamped by a clamping element, characterized by that the poles (4, 5) of the neighboring electric cells (1) are clamped between a supporting and shaping element (2) and a covering and shaping element (3).
4. A junction according to claim 3, characterized by that the supporting and shaping element (2) as well as the covering and shaping element (3) have arched shaping surfaces.
5. A junction according to claim 3, characterized by that the supporting and shaping element (2) and the covering and shaping element (3) have trapezoid- arched shaping surfaces.
6. A junction according to claim 3 or 4 or 5, characterized by that the supporting and shaping element (2) is made of plastic.
7. A junction according to claim 3 or 4 or 5, characterized by that the covering and shaping element (3) is made of plastic.
8. A junction according to claim 3 or 4 or 5, characterized by that a current lead-out (7) is clamped between the supporting and shaping element (2) and the covering and shaping element (3.)
9. A junction according to claim 3 or 4 or 5, characterized by that an insulating front plate (10) having oblong openings, with the poles of electric cells (1) going through said openings, is located between the front part of the electric cells (1) and the supporting and shaping element (2).
10. A junction according to claim 3, characterized by that the poles of the particular electric cells (1) are additionally connected to an electronic plate (14).
PCT/PL2009/050040 2008-12-16 2009-12-09 A method for connecting poles of electric cells and a junction for poles of electric cells WO2010071464A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR2020117000018U KR200473642Y1 (en) 2008-12-16 2009-12-09 Junction for poles of electric cells
DE212009000142U DE212009000142U1 (en) 2008-12-16 2009-12-09 Connection point for poles of electrical cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL386823A PL386823A1 (en) 2008-12-16 2008-12-16 Method of connection of the electric cells poles and the connector of electric cells poles
PLP-386823 2008-12-16

Publications (1)

Publication Number Publication Date
WO2010071464A1 true WO2010071464A1 (en) 2010-06-24

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JP (1) JP3171905U (en)
KR (1) KR200473642Y1 (en)
CZ (1) CZ23145U1 (en)
DE (1) DE212009000142U1 (en)
PL (1) PL386823A1 (en)
RU (1) RU113877U1 (en)
WO (1) WO2010071464A1 (en)

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WO2012062397A1 (en) * 2010-11-10 2012-05-18 Daimler Ag Battery with a cell assembly
DE102010052507A1 (en) * 2010-11-26 2012-05-31 Ads-Tec Gmbh Contact device in a battery block
EP2538469A3 (en) * 2011-06-23 2013-12-18 Samsung SDI Co., Ltd. Battery pack
EP2737560A1 (en) * 2011-07-29 2014-06-04 Shenzhen BYD Auto R&D Company Limited Connector between battery modules and battery system comprising the same
ITTO20130424A1 (en) * 2013-05-27 2014-11-28 Whitehead Sistemi Subacquei S P A UNIT FOR THE SUPPLY OF ELECTRICITY BY NAVAL VESSEL, IN PARTICULAR UNDERWATER VESSEL
CN106410260A (en) * 2016-12-12 2017-02-15 珠海泰坦新动力电子有限公司 Soft-package lithium battery energy-saving portable bearing structure

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KR102077272B1 (en) * 2015-09-14 2020-02-13 주식회사 엘지화학 Battery module and protecting structure applied for the same
JP6863192B2 (en) * 2017-09-15 2021-04-21 トヨタ自動車株式会社 How to manufacture assembled batteries

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JP3171905U (en) 2011-11-24
KR200473642Y1 (en) 2014-07-15
DE212009000142U1 (en) 2012-02-23

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