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 PDFInfo
- 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
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
- H01M50/50—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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE212009000142U DE212009000142U1 (en) | 2008-12-16 | 2009-12-09 | Connection point for poles of electrical cells |
KR2020117000018U KR200473642Y1 (en) | 2008-12-16 | 2009-12-09 | Junction for poles of electric 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 |
Family
ID=42016209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/PL2009/050040 WO2010071464A1 (en) | 2008-12-16 | 2009-12-09 | A method for connecting poles of electric cells and a junction for poles of electric cells |
Country Status (7)
Country | Link |
---|---|
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) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (7)
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EP0939956A1 (en) | 1996-04-22 | 1999-09-08 | Iomega Corporation | Writing and reading high density magnetic tapes |
JP2004022395A (en) * | 2002-06-18 | 2004-01-22 | Nissan Motor Co Ltd | Cell connection structure |
US20040102096A1 (en) * | 2002-11-25 | 2004-05-27 | Jae-Hwan Lim | Electric cell connecting apparatus for hybrid electric vehicle |
US20050031946A1 (en) * | 2003-08-06 | 2005-02-10 | Kruger Duane D. | Battery assembly and method of making same |
WO2006046585A1 (en) * | 2004-10-29 | 2006-05-04 | Nec Corporation | Coupling device, storing case and method for manufacturing electric device assembly |
JP2007323952A (en) | 2006-05-31 | 2007-12-13 | Sanyo Electric Co Ltd | Battery pack |
US20080124617A1 (en) * | 2006-04-18 | 2008-05-29 | Danaher Corporation | Battery busing scheme |
-
2008
- 2008-12-16 PL PL386823A patent/PL386823A1/en not_active Application Discontinuation
-
2009
- 2009-12-09 KR KR2020117000018U patent/KR200473642Y1/en active IP Right Grant
- 2009-12-09 DE DE212009000142U patent/DE212009000142U1/en not_active Expired - Lifetime
- 2009-12-09 RU RU2011129360/07U patent/RU113877U1/en active
- 2009-12-09 WO PCT/PL2009/050040 patent/WO2010071464A1/en active Application Filing
-
2011
- 2011-07-08 CZ CZ201124578U patent/CZ23145U1/en not_active IP Right Cessation
- 2011-08-30 JP JP2011005070U patent/JP3171905U/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0939956A1 (en) | 1996-04-22 | 1999-09-08 | Iomega Corporation | Writing and reading high density magnetic tapes |
JP2004022395A (en) * | 2002-06-18 | 2004-01-22 | Nissan Motor Co Ltd | Cell connection structure |
US20040102096A1 (en) * | 2002-11-25 | 2004-05-27 | Jae-Hwan Lim | Electric cell connecting apparatus for hybrid electric vehicle |
US20050031946A1 (en) * | 2003-08-06 | 2005-02-10 | Kruger Duane D. | Battery assembly and method of making same |
WO2006046585A1 (en) * | 2004-10-29 | 2006-05-04 | Nec Corporation | Coupling device, storing case and method for manufacturing electric device assembly |
US20080124617A1 (en) * | 2006-04-18 | 2008-05-29 | Danaher Corporation | Battery busing scheme |
JP2007323952A (en) | 2006-05-31 | 2007-12-13 | Sanyo Electric Co Ltd | Battery pack |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP2643872B1 (en) * | 2010-11-26 | 2019-05-01 | ads-tec GmbH | Contact device in a battery pack |
EP2538469A3 (en) * | 2011-06-23 | 2013-12-18 | Samsung SDI Co., Ltd. | Battery pack |
KR101835582B1 (en) | 2011-06-23 | 2018-03-07 | 삼성에스디아이 주식회사 | 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 |
EP2737560A4 (en) * | 2011-07-29 | 2015-06-10 | Shenzhen Byd Auto R & D Co Ltd | 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 |
EP2808926A1 (en) * | 2013-05-27 | 2014-12-03 | Whitehead Sistemi Subacquei S.p.A. | Power unit for naval unit, in particular submarine unit |
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 |
CN106410260B (en) * | 2016-12-12 | 2023-12-05 | 珠海泰坦新动力电子有限公司 | Energy-conserving portable bearing structure of soft packet of lithium cell |
Also Published As
Publication number | Publication date |
---|---|
KR20110008218U (en) | 2011-08-19 |
CZ23145U1 (en) | 2012-01-02 |
JP3171905U (en) | 2011-11-24 |
RU113877U1 (en) | 2012-02-27 |
DE212009000142U1 (en) | 2012-02-23 |
PL386823A1 (en) | 2010-06-21 |
KR200473642Y1 (en) | 2014-07-15 |
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