EP2601699A1 - Agencement de liaison électrique et élément de liaison électrique, ainsi qu'agencement d'accumulateurs correspondant - Google Patents

Agencement de liaison électrique et élément de liaison électrique, ainsi qu'agencement d'accumulateurs correspondant

Info

Publication number
EP2601699A1
EP2601699A1 EP11741108.2A EP11741108A EP2601699A1 EP 2601699 A1 EP2601699 A1 EP 2601699A1 EP 11741108 A EP11741108 A EP 11741108A EP 2601699 A1 EP2601699 A1 EP 2601699A1
Authority
EP
European Patent Office
Prior art keywords
electrical connection
electrical
structured surface
connection element
arrangement according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP11741108.2A
Other languages
German (de)
English (en)
Inventor
Martin Wiegmann
Markus Hoh
Ralf Joswig
Henning Eisermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clarios Technology and Recycling GmbH
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 EP2601699A1 publication Critical patent/EP2601699A1/fr
Withdrawn legal-status Critical Current

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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical 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
    • 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
    • H01M50/514—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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
    • 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
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • 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 relates to an electrical connection arrangement according to the preamble of claim 1.
  • the invention also relates to an electrical connection element for such an eiekihariwitz connection arrangement according to claim 10 and an accumulator arrangement according to claim 11.
  • An accumulator arrangement with several accumulator cells usually has electrical connection elements for connecting the poles of the accumulator cells.
  • the battery cells are usually connected in series, possibly also in groups connected in parallel.
  • the electrical connection elements may e.g. be formed in the form of a sheet metal strip, such. known from US 2010/0015519 A1.
  • Such electrical connection elements are also referred to as bridge connectors or, in the English language, as a "bus bar”. To transfer the electric current from one accumulator cell to the next, it is desirable to minimize the contact resistances and thus the losses.
  • the invention is therefore based on the object of specifying an electrical connection arrangement, in particular for a rechargeable battery arrangement, with an electrical connection element which enables the lowest possible transmission of electrical energy between the rechargeable batteries.
  • the invention allows a reduction of the contact resistance of the one electrical connection to the other electrical connection via the electrical connection element with simple inexpensive Mittein.
  • the invention is based on an optimization of the contact surfaces at which the electrical connection element is in contact with the electrical connections. According to the hitherto recognized doctrine, attempts have been made to make the surfaces of these contact surfaces as smooth and flat as possible in order to maximize contact and thus minimize contact resistance.
  • the inventors of the present application have found, however, that such an optimization in the direction of ideal surface quality just does not lead to the desired goal, since even with a large manufacturing and thus cost optimized smooth surfaces have tolerances that do not produce a uniform two-dimensional flat concern in the microscopic area the contact surfaces of the connecting element and the electrical connection lead to each other. This inherently leads to a higher contact resistance, which according to the previous teaching would require a further increase in the manufacturing precision of the surfaces.
  • the present invention deviating from the prevailing teaching, and instead proposing to deliberately produce at least one of the contact surfaces of the electrical connection element and / or the first or second electrical connection with a structured surface, and to design them such that due to a Fixing the electrical connection element to the first and / or second electrical connection, the structured surface is plastically deformed compared to the present prior to attaching the electrical connection element state. It turns out that in this way a significant reduction of contact resistance is possible in a cost-effective manner, since the structured surface allows a plastic adaptation to the respectively opposite contact surface, which leads to a maximization of the entire contact surface.
  • the structured surface can plastically deform the respectively opposite contact surface due to the fastening of the electrical connection element to the first and / or second electrical connection, for example by impressing. It is also possible a combination such that the structured surface itself is plastically deformed and the textured surface also plastically deforms the opposite contact surface. Overall, this results in an optimal adaptation of the profiles of the adjacent contact surfaces.
  • the plastic deformation takes place as a result of a fastening of the electrical connection element to the first and / or the second electrical connection, e.g. by fastening the connecting element with a screw or a fastening nut on a thread on the electrical connection and tightening the screw or the fastening nut until a desired plastic deformation is achieved.
  • the tightening of the screw or the fastening nut is advantageously carried out with a prescribed torque.
  • the textured surface may be regular or irregular.
  • the invention allows large degrees of freedom in the definition and production of the structured surface, which has the advantage that in each case particularly cost-effective production methods can be used.
  • the structured surface may e.g. have a random pattern.
  • the structured surface is designed as a third-order shape deviation according to DIN 4760.
  • the structured surface thus has a certain roughness, which, according to an advantageous development of the invention, e.g. may be formed in the form of grooves.
  • the structured surface has a single groove arrangement and a cross groove arrangement.
  • the grooves may be profiled differently in cross-section, e.g. V-shaped or U-shaped.
  • the structured surface is provided only on the electrical connection element.
  • the first and the second electrical connection are thus not provided with a structured surface.
  • the electrical connection element consists, at least in the area of its contact surfaces, of a different material with a different material hardness than the first and / or the second electrical connection in the region of its contact surface.
  • a different material with a different material hardness than the first and / or the second electrical connection in the region of its contact surface.
  • it is technically basically irrelevant which contact partner is made harder or softer.
  • the choice of material can therefore be made economically, in particular according to the criteria recyclability and Teiiekos- th.
  • soft-alloyed copper varieties are advantageously used. Also possible are lead and aluminum and their alloys.
  • the structured surface has a roughness depth in the range of 0.25 to 1 mm.
  • the surface roughness is measured between the highest and the lowest point of the surface, eg between the upper edge and valley of a groove.
  • the roughness can be determined in particular depending on the size of the electrical connection element.
  • the structured surface is embossed with a stamping tool. This has the advantage that the structured surface is less sharp-edged, whereby notch effect effects and an associated risk of breakage in the area of the adjacent contact surfaces is reduced.
  • the electrical connection element in the region of its contact surfaces in each case a passage opening for carrying out a fastening means.
  • the fastening means may in particular have a thread, e.g. be designed as a screw.
  • the invention further relates to an electrical connection element in the form of a sheet-metal strip for connecting a first electrical connection to a second electrical connection, in particular for connecting a first accumulator cell to a second accumulator cell of an accumulator arrangement of the type described above.
  • the electrical connection element has at least one of its contact surfaces the structured surface.
  • the invention further relates to an accumulator arrangement having at least a first accumulator cell, a second accumulator cell and an electrical connection arrangement of the type described above.
  • the first electrical connection is a first pole of the first accumulator cell and the second electrical connection is a second pole of the second accumulator cell.
  • the electrical connection arrangement according to the invention can be advantageously used for all types of electrical connections between two electrical connections.
  • Figure 5 a first embodiment of an electrical connection element
  • Figure 6 a second embodiment of an electrical connection element
  • Figure 7 an embodiment of a terminal pole of a battery cell
  • Figure 8 - a third embodiment of an electrical connection element in plan view
  • Figure 10 - a groove in an enlarged view.
  • FIG. 1 shows an accumulator arrangement with a first accumulator cell 4 and a second accumulator cell 5.
  • the first accumulator cell 4 has a pole 1 which is the first electrical connection.
  • the second accumulator cell 5 has a second pole 2 as a second electrical connection.
  • the first pole 1 is electrically and mechanically connected to the second pole 2 via an electrical connection element 3 designed in the form of a sheet-metal strip.
  • On the underside of the battery cells 4, 5 respective further electrical connection elements 3 are shown, via which the battery cells 4, 5 can be electrically connected to further battery cells, not shown.
  • FIG. 2 shows the connection between the first pole 1 and the electrical connecting element 3 in an enlarged detail, the first accumulator cell 4 not being shown.
  • the first pole 1 has a contact surface 14 which is provided for engagement with a corresponding, associated contact surface 32 of the electrical connection element 3.
  • the first pole 1 also has a longitudinal passage opening 10 provided with an internal thread.
  • the electrical connection element 3 has a first passage opening 30 in the form of a bore and a second passage opening 31 in the form of a bore. In the region surrounding the second passage opening 31, the electrical connection element 3 has a second contact surface 33.
  • the second passage opening 31 serves to carry out a further fastening means in order to connect the electrical connection element 3 to the second accumulator cell 5.
  • a screw 12 which serves as a fastening means.
  • Screw 12 has e.g. a thread 13 which fits to the internal thread of the through hole 10 of the first pole 1. Furthermore, a washer 11 is disposed between the head of the screw 12 and the electrical connector 3.
  • FIG. 3 shows the arrangement according to FIG. 2 in a state in which the electrical connection element is fastened to the first pole 1 by the screw 12 being screwed into the internal thread of the through-opening 10.
  • FIG. 4 shows the arrangement according to FIG. 3 in a view from below of the electrical connection element 3, ie. in a view in which the second contact surface 33 is recognizable with its structured surface.
  • FIG. 5 shows a first embodiment of the electrical connection element 3. As can be seen, both the first contact surface
  • the structured surfaces are formed at least in the region of the contact surfaces 32, 33 in the form of a Wienrillenan angel, i. there is a first plurality of grooves parallel to each other and a second plurality of grooves also parallel to each other, the second plurality of grooves being disposed at an angle to the first plurality of grooves.
  • FIG. 6 shows a second embodiment of the electrical connection element 3, in which, at least in the area of the contact surfaces 32,
  • FIG. 7 shows the connection pole 1 with the contact surface 14, wherein it can be seen that the contact surface 14 is likewise structured.
  • the surface structure of the contact surface 14 was determined by plastic Forming the previously substantially flat (smooth) surface of the contact surface 14 as a result of attaching a provided with a Wienrillenanowskiowski electrical connection element, for example according to Figure 5, generated.
  • the described structured surfaces of the contact surfaces can also be provided on the respective contact surface 14 of the first or second pole 1, 2.
  • a pole 1, 2 results with a contact surface 14, which looks comparable as shown in Figure 7.
  • FIG. 8 shows an electrical connection element 3, in which at least in the region of the respective contact surfaces 32, 33 a cross groove arrangement is again provided, e.g. by impressing with a stamping tool.
  • FIG. 8 shows the electrical connection element 3 in plan view
  • FIG. 9 shows the same electrical connection element 3 in a side view.
  • a groove 34 of the cross groove arrangement in the area of the contact surface 33 will be discussed below.
  • the groove 34 is shown enlarged in FIG.
  • the groove has a V-shaped profile.
  • the groove depth is designed such that it corresponds approximately to 0.85 times the value of the groove width t. It has been shown that in this way particularly low contact resistance can be achieved.

Landscapes

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

Abstract

L'invention concerne un agencement de liaison électrique comportant un premier raccordement électrique (1), un deuxième raccordement électrique (2) et un élément de liaison électrique (3) prenant la forme d'une bande de tôle. L'élément de liaison électrique (3), grâce à des surfaces de contact (14, 32, 33) prévues sur l'élément de liaison électrique (3) et sur le premier et le deuxième raccordement électrique (1, 2), relie le premier raccordement électrique et le deuxième raccordement électrique. Au moins l'une des surfaces de contact (14, 32, 33) de l'élément de liaison électrique (3) et/ou du premier ou deuxième raccordement électrique (1, 2) est fabriquée avec une surface structurée. La surface structurée et/ou la surface de contact opposée à la surface structurée, du fait d'une fixation de l'élément de liaison électrique (3) sur le premier et/ou le deuxième raccordement électrique (1, 2), est déformée plastiquement par rapport à l'état qui existait avant la fixation de l'élément de liaison électrique (3). L'invention concerne en outre un élément de liaison électrique pour un tel agencement de liaison électrique, ainsi qu'un agencement d'accumulateurs.
EP11741108.2A 2010-08-04 2011-07-22 Agencement de liaison électrique et élément de liaison électrique, ainsi qu'agencement d'accumulateurs correspondant Withdrawn EP2601699A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010033437A DE102010033437A1 (de) 2010-08-04 2010-08-04 Elektrische Verbindungsanordnung und elektrisches Verbindungselement sowie Akkumulatoranordnung dafür
PCT/EP2011/003678 WO2012016644A1 (fr) 2010-08-04 2011-07-22 Agencement de liaison électrique et élément de liaison électrique, ainsi qu'agencement d'accumulateurs correspondant

Publications (1)

Publication Number Publication Date
EP2601699A1 true EP2601699A1 (fr) 2013-06-12

Family

ID=44587753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11741108.2A Withdrawn EP2601699A1 (fr) 2010-08-04 2011-07-22 Agencement de liaison électrique et élément de liaison électrique, ainsi qu'agencement d'accumulateurs correspondant

Country Status (7)

Country Link
US (1) US9337464B2 (fr)
EP (1) EP2601699A1 (fr)
JP (1) JP5595591B2 (fr)
KR (1) KR101834028B1 (fr)
CN (1) CN103053047B (fr)
DE (1) DE102010033437A1 (fr)
WO (1) WO2012016644A1 (fr)

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DE102012003979B3 (de) 2012-02-28 2013-06-20 Audi Ag Batterie mit wenigstens zwei Batteriezellen und mit wenigstens einem Verbindungselement
US8864502B2 (en) * 2012-05-04 2014-10-21 Thomas & Betts International, Inc. Mechanical grounding connector
US9799872B2 (en) * 2013-01-18 2017-10-24 Samsung Sdi Co., Ltd. Battery module
DE102013208242A1 (de) * 2013-05-06 2014-11-06 Robert Bosch Gmbh Elektrisches Verbindungselement und Batterie mit elektrischem Verbindungselement
DE102014225419A1 (de) 2014-12-10 2016-06-16 Robert Bosch Gmbh Elektrische Verbindungsanordnung mit strukturierten Kontaktflächen
KR102072080B1 (ko) * 2015-01-21 2020-01-31 엘에스엠트론 주식회사 에너지 저장 장치
WO2017205982A1 (fr) * 2016-06-01 2017-12-07 Termaco Ltee Connecteur de batterie
JP7004200B2 (ja) * 2017-11-08 2022-02-10 トヨタ自動車株式会社 組電池の製造方法、および組電池
US11764390B1 (en) * 2020-10-30 2023-09-19 Guangdong Brunp Recycling Technology Co., Ltd. Automatic production line for cascade utilization of power batteries
SE2150717A1 (en) * 2021-06-04 2022-12-05 Northvolt Ab A cylindrical secondary cell with a terminal surface with different roughness

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ATE141717T1 (de) * 1992-05-08 1996-09-15 Multi Contact Ag Kontaktvorrichtung
EP1014494A1 (fr) * 1998-12-16 2000-06-28 Zurecon Ag Méthode pour joindre conducteurs de courant métalliques et une connexion d'une barre omnibus fabriquée selon cette méthode
KR100684743B1 (ko) * 2004-10-28 2007-02-20 삼성에스디아이 주식회사 이차 전지 모듈
US20070099073A1 (en) * 2005-10-31 2007-05-03 White Daniel J Cell connection straps for battery cells of a battery pack
KR100658686B1 (ko) * 2005-10-31 2006-12-15 삼성에스디아이 주식회사 이차 전지 모듈
CN200993978Y (zh) * 2005-10-31 2007-12-19 布莱克和戴克公司 用于电池组的单元电池的电池连接带
JP5005220B2 (ja) 2006-01-10 2012-08-22 三桜工業株式会社 組電池における接続板の溶接方法
WO2008098193A2 (fr) 2007-02-09 2008-08-14 Johnson Controls--Saft Advanced Power Solutions Llc Barre omnibus pour batteries
US7972185B2 (en) * 2009-03-16 2011-07-05 Sb Limotive Co., Ltd. Battery module having connector for connecting terminals

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Also Published As

Publication number Publication date
KR20140002606A (ko) 2014-01-08
DE102010033437A1 (de) 2012-02-09
KR101834028B1 (ko) 2018-03-02
US9337464B2 (en) 2016-05-10
US20140030933A1 (en) 2014-01-30
WO2012016644A1 (fr) 2012-02-09
CN103053047A (zh) 2013-04-17
CN103053047B (zh) 2016-09-14
JP2013533599A (ja) 2013-08-22
JP5595591B2 (ja) 2014-09-24

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