EP2115799A1 - Device comprising at least one electrochemical cell - Google Patents

Device comprising at least one electrochemical cell

Info

Publication number
EP2115799A1
EP2115799A1 EP07858055A EP07858055A EP2115799A1 EP 2115799 A1 EP2115799 A1 EP 2115799A1 EP 07858055 A EP07858055 A EP 07858055A EP 07858055 A EP07858055 A EP 07858055A EP 2115799 A1 EP2115799 A1 EP 2115799A1
Authority
EP
European Patent Office
Prior art keywords
cell
terminal lugs
cells
housing part
pressing force
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Withdrawn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
EP07858055A
Other languages
German (de)
French (fr)
Inventor
Jochen Fassnacht
Richard Aumayer
Dieter Hanauer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2115799A1 publication Critical patent/EP2115799A1/en
Withdrawn legal-status Critical Current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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention is based on a device having at least one electrochemical cell according to the preamble of claim 1.
  • Nickel metal hydride reservoirs e.g. are combined in a plurality of modules, each having a plurality of individual cells as a storage unit.
  • lithium-ion batteries are known, as described in EP 1 577 973 A1.
  • Conffeebag cells are formed as rectangular flat cells In such cells, the electrode packs are arranged in a laminated metal foil which adapts to the electrode pack. The cells are accordingly soft, which are usually combined in several modules and electrically parallel and However, these cells must be installed in a suitable cell housing before they can be combined to form a module.
  • the invention relates to a device having at least one electrochemical cell, which is formed substantially flat and having laterally projecting terminal lugs for electrical contacting.
  • each cell is enclosed between two housing parts, which pinch the cell between them at least in sections with the aid of pressing force.
  • the cell can experience a planar pressing, in particular in the region of its electrode pack. This can be prevented that the electrode pack is disconnected during operation, resulting in a loss of performance up to the failure of the cell.
  • the cell may remain in a compressed state throughout its lifetime.
  • the two housing parts can be connected by Vintageppsen or by welding together.
  • the housing parts can be joined at a constant distance or at a constant contact pressure. The person skilled in the art will select the suitable type of connection on the basis of the specific conditions of use of the device.
  • areas that are mechanically prone to vibration damage can be stabilized. It can be relieved of the areas where the terminal lugs are led to the outside as well as the terminal lugs themselves from vibration. A seam along the edge of the cell can also be relieved of pressure. It can be deliberately recessed areas in which, for security reasons, a break under certain conditions is desired, such as a predetermined breaking point of the cell. This can be specifically excluded from the vibration relief to ensure their function.
  • the cell can be acted upon edge side with pressing force.
  • a usually circumferential weld of the cell packaging can be protected.
  • both housing parts are constructed symmetrically.
  • the one housing part in the region of the cell edge have a circumferential bead and the other housing part has a complementary groove.
  • the tightness of Zellrandversch mayung be supported.
  • the bead and groove or in a symmetrical configuration bead and Gegenwulst in the region of the cell edge outside the exit of the terminal lugs is executed.
  • the terminal lugs usually have a low material thickness, which can be difficult to press into a groove, while the usually thin circumferential sealing edge can be pressed into the groove, thereby creating additional support of the seal ,
  • the cell can be acted upon in the region of the terminal lugs with pressing force, whereby the exit area as well as the terminal lugs can be stabilized.
  • the pressing force in this area is a flat pressing force.
  • both housing parts are constructed symmetrically.
  • a peripheral edge can be provided, which acts on the edge of the cell with pressing force.
  • a recess for a predetermined breaking point, such as a valve may be provided.
  • both housing parts are constructed symmetrically.
  • both housing parts are constructed symmetrically. From the receptacle for the cell, a first stage for the peripheral pressure and a second stage for the pressure of the outlet region of the terminal lugs are preferably formed. However, for the edge-side pressing, a bead can also be provided on one housing half and a complementary groove on the other housing half.
  • openings may be provided for a cooling medium.
  • both housing parts are constructed symmetrically.
  • the cells are therefore sufficiently coolable with a cooling medium, preferably air.
  • the cells or modules are easily replaceable, which is particularly favorable when used in larger modules in motor vehicles. A defective battery module can therefore be easily repaired or replaced.
  • channels may be provided for a cooling medium at least one housing part.
  • a plurality of packaged cells can be stacked on one another in a stacking direction and braced against one another. This module can be constructed with a plurality of individual cells. These in turn can with preferably similar modules to larger
  • Battery units are constructed. In the event of a cell defect, individual cells or individual modules can be replaced easily and inexpensively.
  • reinforced end plates may be provided at the ends of the stack and / or the shell halves of the outer cells may be suitably reinforced.
  • tension bolts e.g. in the form of threaded rods, inserted into suitable holes in the housing halves and bolted. These can be easily detached and screwed together to replace individual cells.
  • tension bolts e.g. in the form of threaded rods, inserted into suitable holes in the housing halves and bolted. These can be easily detached and screwed together to replace individual cells.
  • tension bolts e.g. in the form of threaded rods
  • a thermally insulating and / or fire-inhibiting intermediate layer is inserted between the housed cells.
  • the housing halves may be formed of a corresponding material, so that it is possible to dispense with the intermediate layers. This will make the stacks smaller.
  • the terminal lugs may protrude from the housing parts and be electrically connected to each other in series and / or in parallel. They can be welded together as an inexpensive variant, or be clamped in a clamping device for clamping and electrical contacting of the terminal lugs. By clamping an exchange of defective single cells is particularly easy.
  • the terminal lugs can each be clamped on both sides of the housing parts into a clamping device and at least two equilateral terminal lugs in the clamping device can be brought together except for one connection lug of the respective outer cells.
  • an exchange of individual cells can be realized in a simple manner.
  • the terminal lugs can also be welded at lower cost.
  • the housed cells can be combined in a battery pack in one or more stacks.
  • An installation position of one or more stacks in the corresponding battery pack can be arbitrary per se, ie, vertical, horizontal, transverse or the like. The person skilled in the art will select the appropriate installation position for the given boundary conditions.
  • the device according to the invention is particularly suitable for use in hybrid vehicles, for the industrial sector or for other applications, e.g. Electric powered wheelchairs, electric assisted bicycles, lift trucks or driverless transport systems.
  • Fig. 1 a-d is a plan view of an exploded preferred device with two housing parts and a cell arranged therebetween (Fig. 1 a), a side view of a so-called
  • FIG. 1 b is a plan view of another preferred device with a
  • Fig. 3 is a plan view of another preferred device with a
  • Figures 1 a-1 d show various details of a preferred device 100 with a packaged cell 10.
  • a top view of the device 100 in an exploded view is shown in Figure 1a.
  • a first housing part 30 and a second housing part 40 include a flat electrochemical cell 10, preferably a lithium-ion cell.
  • the housing parts 30, 40 surround the cell 10 like a shell.
  • the cell 10 is formed as a flat cell, so-called “coffebag” cell ( Figure 1 b) and substantially rectangular with a longitudinal extent 28.
  • a typical thickness of such a cell 10 is a few millimeters, typically such cells are 10 in Aluminum foil which conforms to the electrode pack inside the cell 10. Accordingly, the cell 10 is made relatively soft.
  • a laminated edge 26 is formed, typically in the range of 1 mm, which seals the cell 10 to the outside.
  • the edge is interrupted at one point with a valve 24 as a predetermined breaking point.
  • a connecting lug 20 or 22 respectively emerge on each side of passages 20a and 22a, approximately on narrow sides along the longitudinal extent 28.
  • the connecting lugs 20, 22 (current conductors) form the electrical poles of the cell 10.
  • the housing parts 30, 40 are similar in this example.
  • the housing part 30 has a recess 10 adapted to the cell 10 in the middle, which is surrounded by an edge 32.
  • the edge 32 forms a plant for the cell 10 and leads in the assembled state to a pressing force on the edge of the cell 10.
  • breakthroughs 34a are formed with which a cooling medium, such as air, the cell 10 between the housing parts 30, 40 can be fed.
  • the openings 34a lead from the outside through the pressing force generating edge 32 to the recess 36 for the cell 10th
  • paragraphs 38 are formed so that they can exert a pressing force on the terminal lugs 20, 22 of the cell 10 in the assembled state. In this way terminal lugs 20, 22 and edge 26 of the cell 10 are relieved of vibrations.
  • the housing part 40 is formed the same as the housing part 30.
  • the housing part 40 has a recess 10 adapted to the cell 10 in the middle, which is surrounded by a rim 42.
  • the edge 42 forms a plant for the cell 10 and leads in the assembled state with the housing part 30 to a pressing force on the edge of the cell 10.
  • openings 44a are formed for the cooling medium and lead through the The pressing force generating edge 42 from the outside to the recess 46 for the cell 10.
  • At the narrow sides of the housing part 40 paragraphs 48 are formed so that they can exert a pressing force on the terminal lugs 20, 22 of the cell 10 in the assembled state.
  • a recess for a safety valve, a cell ventilation or the like may be provided.
  • the housing parts 30, 40 can be joined together in various ways, such as by clipping or by welding.
  • the interposed cell 10 undergoes a surface pressure, preferably in the region of its electrode pack, not shown in its interior. This can be achieved that the electrode pack does not separate during the life of the cell 10, but always remains in a pressed state.
  • the cell housing can be fitted either at a constant distance or at a constant contact pressure.
  • the openings 34a, 44a ensure that sufficient cooling is possible.
  • a side view of one of the preferred housing parts 30 is shown in FIG. 1c.
  • the housing part 30 is formed substantially rectangular with the recess 36 which is surrounded by the edge 32.
  • On the narrow sides 16 38 holes 18 are mounted outside the paragraphs, with which a plurality of such housing parts 30, 40 can be screwed together with mounted cells 10 in a simple manner, eg with threaded rods.
  • FIG. 1d An alternative embodiment of the housing parts 30, 40 is sketched in Fig. 1d as a detailed view.
  • the structure largely corresponds to that described above
  • Embodiment however, has a housing part 30 as a rim 32 has a bead and the other housing part 40 as a complementary edge 42 a groove 42a, so that in the assembled state, the edge 26 of the cell 10 is pressed into the groove.
  • the terminal lugs 20, 22 are pressed flat between the shoulders 38 and 48.
  • a recess for any safety device in the form of a valve is also provided here.
  • the housing parts 30, 40 are rigid and may be made of metal, optionally with suitable electrical insulation at electrically critical points, or also of plastic.
  • FIG. 2 shows a preferred apparatus 110 having a plurality of packaged cells 100 as described in Figures 1 a-1 d, to which reference is made for details of the packaged cells 100.
  • three housed cells 100 are joined together in a stacking direction 56 and each provided with a thermally insulating intermediate layer 54.
  • Reinforced end plates 50 and 52 are provided at the ends of the stack of boxed cells 100 to compress the housed cells 100 when bolts 64, preferably formed as threaded rods, are guided and bolted through the bores 18 (FIG. 1c).
  • FIG. 3 A further embodiment of a preferred device 120 is shown in FIG. 3, in which a plurality of packaged cells 100 are joined together in the stacking direction 56 in a stack and with thermally insulating intermediate layers 54 is disconnected.
  • the terminal lugs 20, 22 are available from the unspecified housing parts, as is known from Fig. 1.
  • the terminal lugs 20, 22 projecting on the same side of the stack are electrically connected in pairs, except for one terminal lug 20a and 22a of the respective outer cell 100. These are connected to the taps 70 and 72, at which the electrical voltage of the stack tapped and made available to a consumer.
  • the terminal lugs 20, 22 are drilled through and the corresponding terminal lugs 20, 22 of the neighboring cells are pressed together via insulating spacers 66a ... 66d or 68a ... 68d and a threaded connection guided through. This pressure ensures electrical contact.
  • the terminal lugs 20, 22 projecting from the housing parts are clamped on each side of the stack in a clamping device 66, 68 for clamping and electrically contacting the terminal lugs 20, 22.
  • the terminal lugs 20 of the inner housed cells 100 are each clamped together in pairs and between spacers 66c and 66b, 66b and 66a.
  • spacers 66a ... 66d a unspecified bolt is guided, e.g. a threaded rod, and bolted at the ends with nuts.
  • the one contact 20a of the one outer packaged cell 100 is clamped as a single contact between the spacers 66c and 66d and can be contacted from the outside.
  • the terminal lugs 22 of the inner housed cells 100 are also clamped together in pairs and between spacers 68c and 68b, 68b and 68a.
  • the one contact 22a of the opposing outer housed cell 100 is clamped as a single contact between the spacers 68a and 66b and can be contacted from the outside.
  • stack of device 120 may also be compressed with end plates as in FIG. 2.

Abstract

The invention relates to a device comprising at least one electrochemical cell (10) which is substantially flat and is provided with laterally projecting terminal lugs (20, 22) for making electrical contact. Each cell (10) is enclosed between two housing parts (30, 40) which clamp the cell (10) therebetween in at least some areas by applying pressure.

Description

Beschreibung description
Titel Vorrichtung mit wenigstens einer elektrochemischen ZelleTitle Device with at least one electrochemical cell
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung mit wenigstens einer elektrochemischen Zelle nach dem Oberbegriff des Anspruch 1.The invention is based on a device having at least one electrochemical cell according to the preamble of claim 1.
Bei anspruchsvollen Traktionssystemen wie Hybridkraftfahrzeugen werden leistungsfähige elektrische Speicher benötigt. Bekannt für diesen Einsatz sind Nickel- Metallhydridspeicher, die z.B. in einer Vielzahl von Modulen mit jeweils einer Mehrzahl von Einzelzellen als Speichereinheit zusammengefasst sind. Als kostengünstige und leistungsfähige Alternative sind Lithium-Ionen-Batterien bekannt, wie sie in der EP 1 577 973 A1 beschrieben sind. Dort sind so genannte „Coffeebag"-Zellen als rechteckige flache Zellen ausgebildet. Bei derartigen Zellen sind die Elektrodenpacks in einer kaschierten Metallfolie angeordnet, die sich dem Elektrodenpack anpasst. Die Zellen sind dementsprechend weich. Diese werden üblicherweise in mehreren Modulen zusammengefasst und elektrisch parallel und/oder in Serie geschaltet. Diese Zellen müssen jedoch in ein geeignetes Zellengehäuse eingebaut werden, bevor sie zu einem Modul zusammengefasst werden können.Demanding traction systems such as hybrid vehicles require powerful electrical storage. Known for this use are nickel metal hydride reservoirs, e.g. are combined in a plurality of modules, each having a plurality of individual cells as a storage unit. As a cost-effective and efficient alternative lithium-ion batteries are known, as described in EP 1 577 973 A1. There, so-called "Coffeebag" cells are formed as rectangular flat cells In such cells, the electrode packs are arranged in a laminated metal foil which adapts to the electrode pack.The cells are accordingly soft, which are usually combined in several modules and electrically parallel and However, these cells must be installed in a suitable cell housing before they can be combined to form a module.
Weiterhin besteht in bestimmten Fehlerzuständen, wie etwa Überladen der Zellen, die Gefahr der Zerstörung der Zelle, die im Fehlerfall sehr heftig reagieren kann und sehr viel Wärme abgeben kann. Ein solcher Fehlerfall einer Zelle darf andere Zellen nicht beschädigen oder gar zu einem so genannten „Thermal Runaway" führen, der andere Zellen in Mitleidenschaft zieht.Furthermore, in certain fault conditions, such as overcharging the cells, there is a risk of destroying the cell, which can react very violently in the event of a fault and can give off a great deal of heat. Such a cell failure should not damage other cells or even lead to a so-called "thermal runaway" affecting other cells.
Offenbarung der Erfindung Die Erfindung geht aus von einer Vorrichtung mit wenigstens einer elektrochemischen Zelle, welche im Wesentlichen flach ausgebildet ist und seitlich abstehende Anschlussfahnen zur elektrischen Kontaktierung aufweist.Disclosure of the invention The invention relates to a device having at least one electrochemical cell, which is formed substantially flat and having laterally projecting terminal lugs for electrical contacting.
Es wird vorgeschlagen, dass jede Zelle zwischen zwei Gehäuseteilen eingeschlossen ist, welche die Zelle wenigstens bereichsweise mit Presskraft zwischen sich einklemmen. Vorteilhaft kann die Zelle insbesondere im Bereich ihres Elektrodenpacks eine flächige Pressung erfahren. Damit kann verhindert werden, dass das Elektrodenpack im Betrieb getrennt wird, was zu einer Leistungseinbuße bis hin zum Ausfall der Zelle führt. Die Zelle kann während ihrer Gesamtlebensdauer in einem gepressten Zustand verbleiben. Die beiden Gehäuseteile können durch Zusammenklippsen oder auch durch Verschweißen miteinander verbunden werden. Die Gehäuseteile können auf konstanten Abstand oder auch auf konstanten Anpressdruck gefügt werden. Der Fachmann wird die geeignete Verbindungsart anhand der konkreten Einsatzbedingungen der Vorrichtung auswählen.It is proposed that each cell is enclosed between two housing parts, which pinch the cell between them at least in sections with the aid of pressing force. Advantageously, the cell can experience a planar pressing, in particular in the region of its electrode pack. This can be prevented that the electrode pack is disconnected during operation, resulting in a loss of performance up to the failure of the cell. The cell may remain in a compressed state throughout its lifetime. The two housing parts can be connected by Zusammenklippsen or by welding together. The housing parts can be joined at a constant distance or at a constant contact pressure. The person skilled in the art will select the suitable type of connection on the basis of the specific conditions of use of the device.
Vorteilhaft können Bereiche, die mechanisch besonders für Schäden durch Vibrationen anfällig sind, stabilisiert werden. Es können die Bereiche, an denen die Anschlussfahnen nach außen geführt sind wie auch die Anschlussfahnen selbst von Vibrationen entlastet werden. Eine am Rand der Zelle entlanglaufende Schweißnaht kann ebenfalls durch Pressung entlastet werden. Es können gezielt Bereiche ausgespart werden, bei denen aus Sicherheitsgründen ein Bruch unter bestimmten Voraussetzungen erwünscht ist, etwa eine Sollbruchstelle der Zelle. Diese kann gezielt von der Vibrationsentlastung ausgenommen werden, um ihre Funktion sicherzustellen.Advantageously, areas that are mechanically prone to vibration damage can be stabilized. It can be relieved of the areas where the terminal lugs are led to the outside as well as the terminal lugs themselves from vibration. A seam along the edge of the cell can also be relieved of pressure. It can be deliberately recessed areas in which, for security reasons, a break under certain conditions is desired, such as a predetermined breaking point of the cell. This can be specifically excluded from the vibration relief to ensure their function.
In einer günstigen Weiterbildung kann die Zelle randseitig mit Presskraft beaufschlagt sein. Damit kann eine üblicherweise umlaufende Schweißnaht der Zellverpackung geschützt werden. Bevorzugt sind beide Gehäuseteile symmetrisch aufgebaut. Denkbar ist jedoch auch, dass das eine Gehäuseteil im Bereich des Zellrandes einen umlaufenden Wulst und das andere Gehäuseteil eine komplementäre Nut aufweisen. So kann die Dichtigkeit der Zellrandverschweißung unterstützt werden. Besonders günstig ist, wenn Wulst und Nut oder auch in symmetrischer Ausgestaltung Wulst und Gegenwulst im Bereich des Zellrandes außerhalb des Austritts der Anschlussfahnen ausgeführt ist. Im Bereich der Anschlussfahnen erfolgt nur eine flächige Pressung, Die Anschlussfahnen weisen üblicherweise eine geringe Material stärke auf, die sich nur schwer in eine Nut pressen lassen, während der üblicherweise dünne umlaufende Dichtrand in die Nut eingedrückt werden kann und dadurch eine zusätzliche Unterstützung der Abdichtung entsteht.In a favorable development, the cell can be acted upon edge side with pressing force. Thus, a usually circumferential weld of the cell packaging can be protected. Preferably, both housing parts are constructed symmetrically. However, it is also conceivable that the one housing part in the region of the cell edge have a circumferential bead and the other housing part has a complementary groove. Thus, the tightness of Zellrandverschweißung be supported. It is particularly favorable if the bead and groove or in a symmetrical configuration bead and Gegenwulst in the region of the cell edge outside the exit of the terminal lugs is executed. The terminal lugs usually have a low material thickness, which can be difficult to press into a groove, while the usually thin circumferential sealing edge can be pressed into the groove, thereby creating additional support of the seal ,
Ferner kann die Zelle im Bereich der Anschlussfahnen mit Presskraft beaufschlagt sein, womit der Austrittsbereich wie auch die Anschlussfahnen stabilisiert werden können. Vorzugsweise ist die Presskraft in diesem Bereich eine flächige Presskraft.Furthermore, the cell can be acted upon in the region of the terminal lugs with pressing force, whereby the exit area as well as the terminal lugs can be stabilized. Preferably, the pressing force in this area is a flat pressing force.
Es kann wenigstens ein Gehäuseteil eine Vertiefung zur Aufnahme der Zelle aufweisen. Damit wird eine Bereitstellung von Flächen zum Aufbringen von Presskraft erleichtert. Bevorzugt sind beide Gehäuseteile symmetrisch aufgebaut.It can have at least one housing part a recess for receiving the cell. This facilitates the provision of surfaces for applying pressing force. Preferably, both housing parts are constructed symmetrically.
Vorteilhaft kann ein umlaufender Rand vorgesehen sein, der die Zelle randseitig mit Presskraft beaufschlagt. Gegebenenfalls kann eine Aussparung für eine Sollbruchstelle wie etwa ein Ventil vorgesehen sein. Bevorzugt sind beide Gehäuseteile symmetrisch aufgebaut.Advantageously, a peripheral edge can be provided, which acts on the edge of the cell with pressing force. Optionally, a recess for a predetermined breaking point, such as a valve may be provided. Preferably, both housing parts are constructed symmetrically.
Es kann ein Absatz vorgesehen sein, der eine Anschlussfahne mit Presskraft beaufschlagt. Bevorzugt sind beide Gehäuseteile symmetrisch aufgebaut. Von der Aufnahme für die Zelle aus ist bevorzugt so eine erste Stufe für die randseitige Pressung und eine zweite Stufe für die Pressung des Austrittsbereichs der Anschlussfahnen ausgebildet. Für die randseitige Pressung kann jedoch auch auf der einen Gehäusehälfte einen Wulst und auf der anderen Gehäusehälfte eine komplementäre Nut vorgesehen sein.It may be provided a paragraph that acts on a terminal lug with pressing force. Preferably, both housing parts are constructed symmetrically. From the receptacle for the cell, a first stage for the peripheral pressure and a second stage for the pressure of the outlet region of the terminal lugs are preferably formed. However, for the edge-side pressing, a bead can also be provided on one housing half and a complementary groove on the other housing half.
In wenigstens einem Gehäuseteil können Durchbrüche für ein Kühlmedium vorgesehen sein. Bevorzugt sind beide Gehäuseteile symmetrisch aufgebaut. Die Zellen sind daher mit einem Kühlmedium, vorzugsweise Luft, ausreichend kühlbar. Vorteilhaft sind die Zellen oder Module leicht austauschbar, was besonders beim Einsatz in größeren Modulen in Kraftfahrzeugen günstig ist. Ein defektes Batteriemodul kann daher leicht repariert oder ersetzt werden. Ferner können wenigstens einem Gehäuseteil Kanäle für ein Kühlmedium vorgesehen sein. In bevorzugter weiterer Ausgestaltung kann eine Mehrzahl von gehäusten Zellen in einer Stapelrichtung aufeinander gestapelt und gegeneinander verspannt sein. Damit können Module mit einer Mehrzahl von einzelnen Zellen aufgebaut werden. Diese wiederum können mit vorzugsweise gleichartigen Modulen zu größerenIn at least one housing part openings may be provided for a cooling medium. Preferably, both housing parts are constructed symmetrically. The cells are therefore sufficiently coolable with a cooling medium, preferably air. Advantageously, the cells or modules are easily replaceable, which is particularly favorable when used in larger modules in motor vehicles. A defective battery module can therefore be easily repaired or replaced. Further, channels may be provided for a cooling medium at least one housing part. In a preferred further embodiment, a plurality of packaged cells can be stacked on one another in a stacking direction and braced against one another. This module can be constructed with a plurality of individual cells. These in turn can with preferably similar modules to larger
Batterieeinheiten aufgebaut werden. Bei einem Defekt einer Zelle können einzelne Zellen oder einzelne Module leicht und kostengünstig ausgetauscht werden. Um eine Pressung auf der ganzen Zellfläche zu erhalten, können an den Stapelenden verstärkte Endplatten vorgesehen sein und/oder die Gehäusehälften der äußeren Zellen können geeignet verstärkt sein. Zum Pressen der gehäusten Zellen können Zugbolzen, z.B. in Form von Gewindestangen, in geeignete Bohrungen der Gehäusehälften eingeführt und verschraubt werden. Diese können zum Austauschen einzelner Zellen einfach gelöst und wieder zusammengeschraubt werden. In einer solchen Stapelanordnung kann gegebenenfalls auf ein separates Verschließen der Gehäusehälften (Verklippsen, Verschweißen) verzichtet werden, da die Presskraft durch die Zugbolzen bereitgestellt werden kann.Battery units are constructed. In the event of a cell defect, individual cells or individual modules can be replaced easily and inexpensively. To obtain a pressure on the whole cell surface, reinforced end plates may be provided at the ends of the stack and / or the shell halves of the outer cells may be suitably reinforced. For pressing the housed cells, tension bolts, e.g. in the form of threaded rods, inserted into suitable holes in the housing halves and bolted. These can be easily detached and screwed together to replace individual cells. In such a stack arrangement may optionally be dispensed with a separate closure of the housing halves (clipping, welding), since the pressing force can be provided by the tension bolts.
Vorteilhaft ist zwischen den gehäusten Zellen jeweils eine thermisch isolierende und/oder Brand hemmende Zwischenschicht eingefügt. Gegebenenfalls können die Gehäusehälften aus einem entsprechenden material gebildet sein, so dass auf die Zwischenschichten verzichtet werden kann. Damit werden die Stapel kleiner.Advantageously, a thermally insulating and / or fire-inhibiting intermediate layer is inserted between the housed cells. Optionally, the housing halves may be formed of a corresponding material, so that it is possible to dispense with the intermediate layers. This will make the stacks smaller.
Günstigerweise können die Anschlussfahnen aus den Gehäuseteilen vorstehen und elektrisch miteinander in Serie und/oder parallel verbunden sein. Sie können als preiswerte Variante miteinander verschweißt sein, oder in einer Klemmvorrichtung zum Einklemmen und elektrischen Kontaktieren der Anschlussfahnen eingeklemmt sein. Durch die Klemmung ist ein Austausch defekter Einzelzellen besonders einfach.Conveniently, the terminal lugs may protrude from the housing parts and be electrically connected to each other in series and / or in parallel. They can be welded together as an inexpensive variant, or be clamped in a clamping device for clamping and electrical contacting of the terminal lugs. By clamping an exchange of defective single cells is particularly easy.
Bei einer Mehrzahl von gehäusten Zellen können die Anschlussfahnen beiderseits der Gehäuseteile jeweils in eine Klemmvorrichtung geklemmt und bis auf jeweils eine Anschlussfahne der jeweils äußeren Zellen wenigstens zwei gleichseitige Anschlussfahnen in der Klemmvorrichtung zusammengeführt sein. Auch hier ist ein Austausch einzelner Zellen auf einfache Weise realisierbar. Preisgünstiger können die Anschlussfahnen jedoch auch verschweißt werden. Je nach gewünschter Spannung bzw. elektrischer Leistung können die gehäusten Zellen in einem Batteriepaket in einen oder mehrere Stapeln zusammengefasst sein. Eine Einbaulage eines oder mehrerer Stapel in dem entsprechenden Batteriepaket kann an sich beliebig sein, d.h. senkrecht, waagrecht, quer oder dergleichen. Der Fachmann wird für die gegebenen Randbedingungen jeweils die geeignete Einbaulage auswählen.In the case of a plurality of housed cells, the terminal lugs can each be clamped on both sides of the housing parts into a clamping device and at least two equilateral terminal lugs in the clamping device can be brought together except for one connection lug of the respective outer cells. Again, an exchange of individual cells can be realized in a simple manner. However, the terminal lugs can also be welded at lower cost. Depending on the desired voltage or electrical power, the housed cells can be combined in a battery pack in one or more stacks. An installation position of one or more stacks in the corresponding battery pack can be arbitrary per se, ie, vertical, horizontal, transverse or the like. The person skilled in the art will select the appropriate installation position for the given boundary conditions.
Die erfindungsgemäße Vorrichtung ist besonders für den Einsatz in Hybridfahrzeugen geeignet, für den industriellen Bereich oder auch für weitere Anwendungen, z.B. bei elektrisch betriebenen Rollstühlen, mit elektrischem Hilfsantrieb versehenen Fahrrädern (Mofas), Hubstaplern oder fahrerlosen Transportsystemen.The device according to the invention is particularly suitable for use in hybrid vehicles, for the industrial sector or for other applications, e.g. Electric powered wheelchairs, electric assisted bicycles, lift trucks or driverless transport systems.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Zeichnungdrawing
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Der Fachmann wird die in der Zeichnung, der Beschreibung und den Ansprüchen in Kombination offenbarten Merkmale zweckmäßigerweise auch einzeln betrachten und zu sinnvollen weiteren Kombinationen zusammenfassen.Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The person skilled in the art will expediently also individually consider the features disclosed in the drawing, the description and the claims in combination and combine these into meaningful further combinations.
Es zeigen:Show it:
Fig. 1 a-d eine Draufsicht auf eine in Explosionsdarstellung dargestellte bevorzugte Vorrichtung mit zwei Gehäuseteilen und einer dazwischen angeordneten Zelle (Fig. 1 a), eine Seitenansicht einer so genanntenFig. 1 a-d is a plan view of an exploded preferred device with two housing parts and a cell arranged therebetween (Fig. 1 a), a side view of a so-called
„Coffebag"-Zelle (Fig. 1 b), eine Seitenansicht eines bevorzugten Gehäuseteils (Fig. 1 c) und ein Detail einer alternativen Ausgestaltung der Gehäuseteile mit Wulst und Nut (Fig. 1d); Fig. 2 eine Draufsicht auf eine weitere bevorzugte Vorrichtung mit einer"Coffebag" cell (Figure 1 b), a side view of a preferred housing part (Figure 1 c) and a detail of an alternative embodiment of the housing parts with bead and groove (Figure 1d). Fig. 2 is a plan view of another preferred device with a
Stapelanordnung von gehäusten Zellen mit verstärkten Endplatten; undStacking arrangement of housed cells with reinforced end plates; and
Fig. 3 eine Draufsicht auf eine weitere bevorzugte Vorrichtung mit einerFig. 3 is a plan view of another preferred device with a
Stapelanordnung von gehäusten Zellen und Klemmvorrichtungen für Anschlussfahnen.Stacking arrangement of housed cells and clamps for terminal lugs.
Ausführungsformen der ErfindungEmbodiments of the invention
In den Figuren sind gleiche oder gleichartige Komponenten mit gleichen Bezugszeichen beziffert.In the figures, the same or similar components are numbered with the same reference numerals.
Zur Illustration der Erfindung zeigen die Fg. 1 a-1 d verschiedene Details einer bevorzugten Vorrichtung 100 mit einer gehäusten Zelle 10. Eine Draufsicht auf die Vorrichtung 100 in Explosionsdarstellung ist in Fig. 1 a dargestellt. Ein erstes Gehäuseteil 30 und ein zweites Gehäuseteil 40 schließen eine flache elektrochemische Zelle 10 ein, bevorzugt eine Lithium-Ionen-Zelle. Die Gehäuseteile 30, 40 umschließen die Zelle 10 schalenartig.To illustrate the invention, Figures 1 a-1 d show various details of a preferred device 100 with a packaged cell 10. A top view of the device 100 in an exploded view is shown in Figure 1a. A first housing part 30 and a second housing part 40 include a flat electrochemical cell 10, preferably a lithium-ion cell. The housing parts 30, 40 surround the cell 10 like a shell.
Die Zelle 10 ist als Flachzelle, als so genannte „Coffebag"-Zelle, ausgebildet (Fig. 1 b) und im Wesentlichen rechteckig mit einer Längserstreckung 28. Eine typische Dicke einer solchen Zelle 10 liegt bei einigen Millimetern. Typischerweise sind solche Zellen 10 in Aluminiumfolie verpackt, die sich dem Elektrodenpack im Inneren der Zelle 10 anpasst. Dementsprechend ist die Zelle 10 relativ weich ausgebildet.The cell 10 is formed as a flat cell, so-called "coffebag" cell (Figure 1 b) and substantially rectangular with a longitudinal extent 28. A typical thickness of such a cell 10 is a few millimeters, typically such cells are 10 in Aluminum foil which conforms to the electrode pack inside the cell 10. Accordingly, the cell 10 is made relatively soft.
Umlaufend ist ein laminierter Rand 26 ausgebildet, typischerweise im Bereich von 1 mm, der die Zelle 10 nach außen abdichtet. Der Rand ist an einer Stelle mit einem Ventil 24 als Sollbruchstelle unterbrochen. Am Rand 26 der Zelle 10 treten auf jeder Seite je eine Anschlussfahne 20 bzw. 22 an Durchführungen 20a bzw. 22a nach außen, etwa an Schmalseiten entlang der Längserstreckung 28. Die Anschlussfahnen 20, 22 (Stromableiter) bilden die elektrischen Pole der Zelle 10.Circumferentially, a laminated edge 26 is formed, typically in the range of 1 mm, which seals the cell 10 to the outside. The edge is interrupted at one point with a valve 24 as a predetermined breaking point. At the edge 26 of the cell 10, a connecting lug 20 or 22 respectively emerge on each side of passages 20a and 22a, approximately on narrow sides along the longitudinal extent 28. The connecting lugs 20, 22 (current conductors) form the electrical poles of the cell 10.
Die Gehäuseteile 30, 40 sind in diesem Beispiel gleichartig ausgebildet. Das Gehäuseteil 30 weist eine an die Zelle 10 angepasste Aussparung 36 in der Mitte auf, die von einem Rand 32 umgeben ist. Der Rand 32 bildet eine Anlage für die Zelle 10 und führt im zusammengebauten Zustand zu einer Presskraft auf den Rand der Zelle 10. In der Umrandung 34 an den Langseiten des Gehäuseteils 30 sind Durchbrüche 34a ausgebildet, mit denen ein Kühlmedium, etwa Luft, der Zelle 10 zwischen den Gehäuseteilen 30, 40 zuführbar ist. Die Durchbrüche 34a führen durch den die Presskraft erzeugenden Rand 32 von außen zur Ausnehmung 36 für die Zelle 10.The housing parts 30, 40 are similar in this example. The housing part 30 has a recess 10 adapted to the cell 10 in the middle, which is surrounded by an edge 32. The edge 32 forms a plant for the cell 10 and leads in the assembled state to a pressing force on the edge of the cell 10. In the border 34 on the long sides of the housing part 30 breakthroughs 34a are formed with which a cooling medium, such as air, the cell 10 between the housing parts 30, 40 can be fed. The openings 34a lead from the outside through the pressing force generating edge 32 to the recess 36 for the cell 10th
An den Schmalseiten des Gehäuseteils 30 sind Absätze 38 so ausgebildet, dass diese im zusammengebauten Zustand eine Presskraft auf die Anschlussfahnen 20, 22 der Zelle 10 ausüben können. Auf diese Weise sind Anschlussfahnen 20, 22 und Rand 26 der Zelle 10 von Vibrationen entlastet. Das Gehäuseteil 40 ist gleich ausgebildet wie das Gehäuseteil 30.On the narrow sides of the housing part 30 paragraphs 38 are formed so that they can exert a pressing force on the terminal lugs 20, 22 of the cell 10 in the assembled state. In this way terminal lugs 20, 22 and edge 26 of the cell 10 are relieved of vibrations. The housing part 40 is formed the same as the housing part 30.
Das Gehäuseteil 40 weist eine an die Zelle 10 angepasste Aussparung 46 in der Mitte auf, die von einem Rand 42 umgeben ist. Der Rand 42 bildet eine Anlage für die Zelle 10 und führt im zusammengebauten Zustand mit dem Gehäuseteil 30 zu einer Presskraft auf den Rand der Zelle 10. In der Umrandung 44 an den Langseiten des Gehäuseteils 40 sind Durchbrüche 44a für das Kühlmedium ausgebildet und führen durch den die Presskraft erzeugenden Rand 42 von außen zur Ausnehmung 46 für die Zelle 10. An den Schmalseiten des Gehäuseteils 40 sind Absätze 48 so ausgebildet, dass diese im zusammengebauten Zustand eine Presskraft auf die Anschlussfahnen 20, 22 der Zelle 10 ausüben können. In der Umrandung 34 und/oder 44 kann auch eine Aussparung für ein Sicherheitsventil, eine Zellentlüftung oder dergleichen vorgesehen sein.The housing part 40 has a recess 10 adapted to the cell 10 in the middle, which is surrounded by a rim 42. The edge 42 forms a plant for the cell 10 and leads in the assembled state with the housing part 30 to a pressing force on the edge of the cell 10. In the border 44 on the long sides of the housing part 40 openings 44a are formed for the cooling medium and lead through the The pressing force generating edge 42 from the outside to the recess 46 for the cell 10. At the narrow sides of the housing part 40 paragraphs 48 are formed so that they can exert a pressing force on the terminal lugs 20, 22 of the cell 10 in the assembled state. In the border 34 and / or 44, a recess for a safety valve, a cell ventilation or the like may be provided.
Die Gehäuseteile 30, 40 können auf verschiedene Weise miteinander zusammengefügt werden, etwa durch Verklippsen oder durch Verschweißen. Die dazwischen eingelegte Zelle 10 erfährt eine flächige Pressung, vorzugsweise im Bereich ihres nicht dargestellten Elektrodenpacks in ihrem Inneren. Damit kann erreicht werden, dass der Elektrodenpack sich nicht während der Lebensdauer der Zelle 10 trennt, sondern stets in einem gepressten Zustand verbleibt. Das Zellgehäuse kann entweder auf konstanten Abstand oder auf konstanten Anpressdruck gefügt werden. Die Durchbrüche 34a, 44a gewährleisten dabei, dass eine ausreichende Kühlung möglich ist. Eine Seitenansicht eines der bevorzugten Gehäuseteile 30 zeigt Fig. 1c. Das Gehäuseteil 30 ist im Wesentlichen rechteckig ausgebildet mit der Aussparung 36, die von dem Rand 32 umgeben ist. An den Schmalseiten 16 sind außerhalb der Absätze 38 Bohrungen 18 angebracht, mit denen eine Mehrzahl solcher Gehäuseteile 30, 40 mit montierten Zellen 10 auf einfache Weise miteinander verschraubt werden können, z.B. mit Gewindestangen.The housing parts 30, 40 can be joined together in various ways, such as by clipping or by welding. The interposed cell 10 undergoes a surface pressure, preferably in the region of its electrode pack, not shown in its interior. This can be achieved that the electrode pack does not separate during the life of the cell 10, but always remains in a pressed state. The cell housing can be fitted either at a constant distance or at a constant contact pressure. The openings 34a, 44a ensure that sufficient cooling is possible. A side view of one of the preferred housing parts 30 is shown in FIG. 1c. The housing part 30 is formed substantially rectangular with the recess 36 which is surrounded by the edge 32. On the narrow sides 16 38 holes 18 are mounted outside the paragraphs, with which a plurality of such housing parts 30, 40 can be screwed together with mounted cells 10 in a simple manner, eg with threaded rods.
Eine alternative Ausgestaltung der Gehäuseteile 30, 40 ist in Fig. 1d als Detailansicht skizziert. Der Aufbau entspricht weitgehend der vorstehend beschriebenenAn alternative embodiment of the housing parts 30, 40 is sketched in Fig. 1d as a detailed view. The structure largely corresponds to that described above
Ausgestaltung, jedoch weist das eine Gehäuseteil 30 als Rand 32 eine Wulst und das andere Gehäuseteil 40 als komplementären Rand 42 eine Nut 42a auf, so dass im zusammengebauten Zustand der Rand 26 der Zelle 10 in die Nut eingepresst ist. Die Anschlussfahnen 20, 22 sind dagegen flächig zwischen den Absätzen 38 und 48 gepresst. Wie vorstehend ist hier ebenfalls eine Aussparung für eine etwaige Sicherheitseinrichtung in Form eines Ventils vorgesehen.Embodiment, however, has a housing part 30 as a rim 32 has a bead and the other housing part 40 as a complementary edge 42 a groove 42a, so that in the assembled state, the edge 26 of the cell 10 is pressed into the groove. By contrast, the terminal lugs 20, 22 are pressed flat between the shoulders 38 and 48. As above, a recess for any safety device in the form of a valve is also provided here.
Die Gehäuseteile 30, 40 sind starr ausgebildet und können aus Metall sein, gegebenenfalls mit geeigneten elektrischen Isolierungen an elektrisch kritischen Stellen, oder auch aus Kunststoff.The housing parts 30, 40 are rigid and may be made of metal, optionally with suitable electrical insulation at electrically critical points, or also of plastic.
Die Ausführung in Fig. 2 zeigt eine bevorzugte Vorrichtung 110 mit einer Mehrzahl von gehäusten Zellen 100, wie sie in Fig. 1 a-1 d beschrieben wurden, auf die für Details zu den gehäusten Zellen 100 verwiesen wird. Beispielhaft sind drei gehäuste Zellen 100 in einer Stapelrichtung 56 aneinandergefügt und jeweils mit einer thermisch isolierenden Zwischenlage 54 versehen. An den Enden des Stapels aus gehäusten Zellen 100 sind verstärkte Endplatten 50 und 52 vorgesehen, mit denen die gehäusten Zellen 100 zusammenpressbar sind, wenn vorzugsweise als Gewindestangen ausgebildete Bolzen 64 durch die Bohrungen 18 (Fig. 1c) geführt und verschraubt werden.The embodiment of Figure 2 shows a preferred apparatus 110 having a plurality of packaged cells 100 as described in Figures 1 a-1 d, to which reference is made for details of the packaged cells 100. By way of example, three housed cells 100 are joined together in a stacking direction 56 and each provided with a thermally insulating intermediate layer 54. Reinforced end plates 50 and 52 are provided at the ends of the stack of boxed cells 100 to compress the housed cells 100 when bolts 64, preferably formed as threaded rods, are guided and bolted through the bores 18 (FIG. 1c).
Eine weitere Ausgestaltung einer bevorzugten Vorrichtung 120 ist der Fig. 3 zu entnehmen, bei der in einem Stapel eine Mehrzahl von gehäusten Zellen 100 in Stapelrichtung 56 aneinandergefügt und mit thermisch isolierenden Zwischenlagen 54 getrennt ist. Die Anschlussfahnen 20, 22 stehen aus den nicht näher bezeichneten Gehäuseteilen über, wie aus Fig. 1 bekannt ist. Die auf der gleichen Seite des Stapels vorstehenden Anschlussfahnen 20, 22 sind miteinander paarweise elektrisch verbunden, bis auf jeweils eine Anschlussfahne 20a und 22a der jeweils äußeren gehäusten Zelle 100. Diese sind mit den Abgriffen 70 und 72 verbunden, an denen die elektrische Spannung des Stapels abgegriffen und einem Verbraucher zur Verfügung gestellt wird. In dieser Ausgestaltung sind die Anschlussfahnen 20, 22 durchbohrt und die entsprechenden Anschlussfahnen 20, 22 der Nachbarzellen über isolierende Distanzstücke 66a...66d bzw. 68a...68d und eine hindurchgeführte Verschraubung zusammengepresst. Durch diese Pressung wird der elektrische Kontakt sichergestellt.A further embodiment of a preferred device 120 is shown in FIG. 3, in which a plurality of packaged cells 100 are joined together in the stacking direction 56 in a stack and with thermally insulating intermediate layers 54 is disconnected. The terminal lugs 20, 22 are available from the unspecified housing parts, as is known from Fig. 1. The terminal lugs 20, 22 projecting on the same side of the stack are electrically connected in pairs, except for one terminal lug 20a and 22a of the respective outer cell 100. These are connected to the taps 70 and 72, at which the electrical voltage of the stack tapped and made available to a consumer. In this embodiment, the terminal lugs 20, 22 are drilled through and the corresponding terminal lugs 20, 22 of the neighboring cells are pressed together via insulating spacers 66a ... 66d or 68a ... 68d and a threaded connection guided through. This pressure ensures electrical contact.
Die aus den Gehäuseteilen vorstehenden Anschlussfahnen 20, 22 sind auf jeder Seite des Stapels in einer Klemmvorrichtung 66, 68 zum Einklemmen und elektrischen Kontaktieren der Anschlussfahnen 20, 22 eingeklemmt. Dazu sind die Anschlussfahnen 20 der inneren gehäusten Zellen 100 jeweils paarweise zusammengeklemmt und zwischen Distanzstücken 66c und 66b, 66b und 66a. Durch die Distanzstücke 66a...66d ist ein nicht näher bezeichneter Bolzen geführt, z.B. eine Gewindestange, und an den Enden mit Muttern verschraubt. Der eine Kontakt 20a der einen äußeren gehäusten Zelle 100 ist als Einzelkontakt zwischen die Distanzstücke 66c und 66d geklemmt und kann von außen kontaktiert werden.The terminal lugs 20, 22 projecting from the housing parts are clamped on each side of the stack in a clamping device 66, 68 for clamping and electrically contacting the terminal lugs 20, 22. For this purpose, the terminal lugs 20 of the inner housed cells 100 are each clamped together in pairs and between spacers 66c and 66b, 66b and 66a. By the spacers 66a ... 66d a unspecified bolt is guided, e.g. a threaded rod, and bolted at the ends with nuts. The one contact 20a of the one outer packaged cell 100 is clamped as a single contact between the spacers 66c and 66d and can be contacted from the outside.
Die Anschlussfahnen 22 der inneren gehäusten Zellen 100 sind ebenfalls jeweils paarweise zusammengeklemmt und zwischen Distanzstücken 68c und 68b, 68b und 68a. Der eine Kontakt 22a der gegenüberliegenden äußeren gehäusten Zelle 100 ist als Einzelkontakt zwischen die Distanzstücke 68a und 66b geklemmt und kann von Außen kontaktiert werden.The terminal lugs 22 of the inner housed cells 100 are also clamped together in pairs and between spacers 68c and 68b, 68b and 68a. The one contact 22a of the opposing outer housed cell 100 is clamped as a single contact between the spacers 68a and 66b and can be contacted from the outside.
Durch die Distanzstücke 66a...66d und 68a...68d der Klemmvorrichtungen 66, 68 ist ein nicht näher bezeichneter Bolzen geführt, z.B. eine Gewindestange, und an den Enden mit Muttern verschraubt.By the spacers 66a ... 66d and 68a ... 68d of the clamping devices 66, 68 a unspecified bolt is guided, for. a threaded rod, and bolted at the ends with nuts.
Selbstverständlich kann der Stapel der Vorrichtung 120 ebenfalls mit Endplatten wie in Fig. 2 zusammengepresst sein. Of course, the stack of device 120 may also be compressed with end plates as in FIG. 2.

Claims

Ansprüche claims
1. Vorrichtung mit wenigstens einer elektrochemischen Zelle (10), welche im Wesentlichen flach ausgebildet ist und seitlich abstehende Anschlussfahnen (20,1. Device having at least one electrochemical cell (10), which is formed substantially flat and laterally projecting terminal lugs (20,
22) zur elektrischen Kontaktierung aufweist, dadurch gekennzeichnet, dass jede Zelle (10) zwischen zwei Gehäuseteilen (30, 40) eingeschlossen ist, welche die Zelle (10) wenigstens bereichsweise mit Presskraft zwischen sich einklemmen.22) for electrical contacting, characterized in that each cell (10) between two housing parts (30, 40) is enclosed, which clamp the cell (10) at least partially with pressing force between them.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Zelle (10) randseitig mit Presskraft beaufschlagt ist.2. Apparatus according to claim 1, characterized in that the cell (10) is acted on edge side with pressing force.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Anschlussfahnen (20, 22) mit Presskraft beaufschlagt sind.3. Apparatus according to claim 1 or 2, characterized in that the terminal lugs (20, 22) are acted upon by pressing force.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens ein Gehäuseteil (30, 40) eine Vertiefung (36, 46) zur Aufnahme der Zelle (10) aufweisen.4. Device according to one of the preceding claims, characterized in that at least one housing part (30, 40) has a recess (36, 46) for receiving the cell (10).
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein umlaufender Rand (32, 42, 42a) vorgesehen ist, der die Zelle (10) randseitig mit Presskraft beaufschlagt.5. Device according to one of the preceding claims, characterized in that a peripheral edge (32, 42, 42 a) is provided, which acts on the cell (10) at the edge with pressing force.
6. Vorrichtung nach Anspruch 5 dadurch gekennzeichnet, dass das eine6. Apparatus according to claim 5, characterized in that the one
Gehäuseteil (30) einen Wulst aufweist und das andere Gehäuseteil (40) eine komplementäre Nut.Housing part (30) has a bead and the other housing part (40) has a complementary groove.
7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Absatz (38, 48) vorgesehen ist, der eine7. Device according to one of the preceding claims, characterized in that a shoulder (38, 48) is provided, which is a
Anschlussfahne (20, 22) mit Presskraft beaufschlagt. Connecting lug (20, 22) acted upon by pressing force.
8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in wenigstens einem Gehäuseteil (30, 40) Durchbrüche (34a, 44a) für ein Kühlmedium vorgesehen sind.8. Device according to one of the preceding claims, characterized in that openings (34a, 44a) are provided for a cooling medium in at least one housing part (30, 40).
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in wenigstens einem Gehäuseteil (30, 40) Kanäle für ein Kühlmedium vorgesehen sind.9. Device according to one of the preceding claims, characterized in that in at least one housing part (30, 40) channels are provided for a cooling medium.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Mehrzahl von gehäusten Zellen (100) in einer10. Device according to one of the preceding claims, characterized in that a plurality of housed cells (100) in one
Stapelrichtung (56) aufeinander gestapelt und gegeneinander verspannt sind.Stacking direction (56) stacked and braced against each other.
1 1. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anschlussfahnen (20, 22) aus den Gehäuseteilen (30, 40) vorstehen und elektrisch miteinander in Serie und/oder parallel verbunden sind.1 1. Device according to one of the preceding claims, characterized in that the terminal lugs (20, 22) from the housing parts (30, 40) protrude and are electrically connected to each other in series and / or in parallel.
12. Vorrichtung nach Anspruch 11 , dadurch gekennzeichnet, dass bei einer Mehrzahl von gehäusten Zellen (100) die Anschlussfahnen (20, 22) beiderseits der Gehäuseteile (30, 40) jeweils in eine Klemmvorrichtung (66, 68) zum12. The device according to claim 11, characterized in that in a plurality of housed cells (100), the terminal lugs (20, 22) on both sides of the housing parts (30, 40) in each case in a clamping device (66, 68) for
Einklemmen und elektrischen Kontaktieren der Anschlussfahnen (20, 22) eingeklemmt und bis auf jeweils eine Anschlussfahne (20a, 22a) der jeweils äußeren Zellen (10) wenigstens zwei gleichseitige Anschlussfahnen (20, 22) in der Klemmvorrichtung (66, 68) zusammengeführt sind. Clamping and electrical contact of the terminal lugs (20, 22) clamped and up to a respective terminal lug (20a, 22a) of the respective outer cells (10) at least two equilateral terminal lugs (20, 22) in the clamping device (66, 68) are merged.
EP07858055A 2007-01-30 2007-12-21 Device comprising at least one electrochemical cell Withdrawn EP2115799A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710004567 DE102007004567A1 (en) 2007-01-30 2007-01-30 Electrochemical cell e.g. coffee-bag cell, housing device for traction system of e.g. hybrid motor vehicle, has cell and lugs for contacting, where cell is enclosed between housing parts, which clamp cell between parts using pressing force
PCT/EP2007/064444 WO2008092536A1 (en) 2007-01-30 2007-12-21 Device comprising at least one electrochemical cell

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WO (1) WO2008092536A1 (en)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8486552B2 (en) 2008-06-30 2013-07-16 Lg Chem, Ltd. Battery module having cooling manifold with ported screws and method for cooling the battery module
US9759495B2 (en) 2008-06-30 2017-09-12 Lg Chem, Ltd. Battery cell assembly having heat exchanger with serpentine flow path
US8663829B2 (en) 2009-04-30 2014-03-04 Lg Chem, Ltd. Battery systems, battery modules, and method for cooling a battery module
US8403030B2 (en) 2009-04-30 2013-03-26 Lg Chem, Ltd. Cooling manifold
EP2273162B1 (en) * 2009-07-06 2019-01-09 Carl Freudenberg KG Sealing frame for use in a battery
KR101130043B1 (en) * 2009-07-27 2012-03-28 주식회사 엘지화학 Battery Module of Improved Cooling Efficiency
US8399118B2 (en) 2009-07-29 2013-03-19 Lg Chem, Ltd. Battery module and method for cooling the battery module
DE102009035461A1 (en) 2009-07-31 2011-02-03 Daimler Ag Battery i.e. heavy-duty battery, for motor vehicle, has electrical insulation layer and additional pole plate arranged on side of positive pole plate, where additional plate is electrically connected with negative pole plate via tension rod
US8399119B2 (en) 2009-08-28 2013-03-19 Lg Chem, Ltd. Battery module and method for cooling the battery module
US9172068B2 (en) * 2009-10-22 2015-10-27 Samsung Sdi Co., Ltd. Battery pack
WO2011073426A1 (en) * 2009-12-18 2011-06-23 Magna E-Car Systems Gmbh & Co Og Accumulator
EP2337155B1 (en) * 2009-12-21 2012-04-18 ads-tec GmbH Contact device for the terminals of the battery cells in a battery block
DE102010026133A1 (en) * 2010-07-05 2012-01-05 Ads-Tec Gmbh Cooling device in a battery pack
US8662153B2 (en) 2010-10-04 2014-03-04 Lg Chem, Ltd. Battery cell assembly, heat exchanger, and method for manufacturing the heat exchanger
JP5663282B2 (en) * 2010-12-01 2015-02-04 カルソニックカンセイ株式会社 Assembled battery
DE102010055610A1 (en) 2010-12-22 2012-06-28 Daimler Ag Battery with a stack of several prismatic battery cells
WO2013002507A2 (en) * 2011-06-27 2013-01-03 주식회사 엘지화학 Battery module and battery assembly including same
DE102012200617A1 (en) 2012-01-17 2013-07-18 Robert Bosch Gmbh Housing device for at least one electrical energy storage cell, energy storage cell assembly and method for producing a housing device for at least one electrical energy storage cell
DE102012200871A1 (en) * 2012-01-23 2013-07-25 Robert Bosch Gmbh Battery module with at least one battery cell having a thermal insulation and motor vehicle
DE102012201837A1 (en) * 2012-02-08 2013-08-08 Continental Automotive Gmbh Housing for receiving energy storage system, has housing half with joining area and another housing half with another joining area, where housing halves are formed from identical molded components and are joined together along joining areas
US9379420B2 (en) 2012-03-29 2016-06-28 Lg Chem, Ltd. Battery system and method for cooling the battery system
US9105950B2 (en) 2012-03-29 2015-08-11 Lg Chem, Ltd. Battery system having an evaporative cooling member with a plate portion and a method for cooling the battery system
US9605914B2 (en) 2012-03-29 2017-03-28 Lg Chem, Ltd. Battery system and method of assembling the battery system
US8852781B2 (en) 2012-05-19 2014-10-07 Lg Chem, Ltd. Battery cell assembly and method for manufacturing a cooling fin for the battery cell assembly
US9306199B2 (en) * 2012-08-16 2016-04-05 Lg Chem, Ltd. Battery module and method for assembling the battery module
US9196878B2 (en) * 2012-11-20 2015-11-24 GM Global Technology Operations LLC Stackable cartridge module design
US9083066B2 (en) 2012-11-27 2015-07-14 Lg Chem, Ltd. Battery system and method for cooling a battery cell assembly
US8852783B2 (en) 2013-02-13 2014-10-07 Lg Chem, Ltd. Battery cell assembly and method for manufacturing the battery cell assembly
US9647292B2 (en) 2013-04-12 2017-05-09 Lg Chem, Ltd. Battery cell assembly and method for manufacturing a cooling fin for the battery cell assembly
US9184424B2 (en) 2013-07-08 2015-11-10 Lg Chem, Ltd. Battery assembly
DE102013213550A1 (en) * 2013-07-11 2015-01-15 Robert Bosch Gmbh Battery cell with a prismatic or cylindrical housing, battery module and motor vehicle
US9257732B2 (en) 2013-10-22 2016-02-09 Lg Chem, Ltd. Battery cell assembly
DE102013222293A1 (en) * 2013-11-04 2015-05-07 Robert Bosch Gmbh battery module
US9444124B2 (en) 2014-01-23 2016-09-13 Lg Chem, Ltd. Battery cell assembly and method for coupling a cooling fin to first and second cooling manifolds
US10084218B2 (en) 2014-05-09 2018-09-25 Lg Chem, Ltd. Battery pack and method of assembling the battery pack
US10770762B2 (en) 2014-05-09 2020-09-08 Lg Chem, Ltd. Battery module and method of assembling the battery module
US9484559B2 (en) 2014-10-10 2016-11-01 Lg Chem, Ltd. Battery cell assembly
US9412980B2 (en) 2014-10-17 2016-08-09 Lg Chem, Ltd. Battery cell assembly
US9786894B2 (en) 2014-11-03 2017-10-10 Lg Chem, Ltd. Battery pack
US9627724B2 (en) 2014-12-04 2017-04-18 Lg Chem, Ltd. Battery pack having a cooling plate assembly
CN106340685B (en) * 2015-07-13 2018-09-14 宁德时代新能源科技股份有限公司 Secondary battery clamp
DE102016223194B4 (en) * 2016-11-23 2018-07-26 Robert Bosch Gmbh Battery cell comprising at least one galvanic cell, battery and method for producing a battery cell
DE102017201015A1 (en) 2017-01-23 2018-07-26 Mahle International Gmbh battery means

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189527A (en) * 1979-01-17 1980-02-19 The United States Of America As Represented By The Secretary Of The Air Force Spherical heat pipe metal-hydrogen cell
US4292381A (en) * 1980-01-30 1981-09-29 Energy Research Corporation Battery construction for uniform electrode current density
DE3247191A1 (en) * 1981-12-26 1983-07-07 Kawaguchiko Seimitsu Co. Ltd., Yamanashi FLAT BATTERY
JP2001196103A (en) * 2000-01-12 2001-07-19 Matsushita Electric Ind Co Ltd Cooling structure of integrated battery
JP2003086240A (en) * 2001-09-07 2003-03-20 Nec Mobile Energy Kk Sealed type battery and its manufacturing method
JP4057437B2 (en) * 2003-02-04 2008-03-05 株式会社東海理化電機製作所 Portable machine
JP2005267886A (en) 2004-03-16 2005-09-29 Nissan Motor Co Ltd Secondary battery
US7531270B2 (en) * 2006-10-13 2009-05-12 Enerdel, Inc. Battery pack with integral cooling and bussing devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008092536A1 *

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US20090104512A1 (en) 2009-04-23

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