WO2021009632A1 - Système de gestion thermique de module de batterie - Google Patents

Système de gestion thermique de module de batterie Download PDF

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Publication number
WO2021009632A1
WO2021009632A1 PCT/IB2020/056490 IB2020056490W WO2021009632A1 WO 2021009632 A1 WO2021009632 A1 WO 2021009632A1 IB 2020056490 W IB2020056490 W IB 2020056490W WO 2021009632 A1 WO2021009632 A1 WO 2021009632A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
terminal
battery module
pathway
conduit
Prior art date
Application number
PCT/IB2020/056490
Other languages
English (en)
Inventor
Bamidele O. FAYEMI
Brandon A. Bartling
Original Assignee
3M Innovative Properties Company
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 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Publication of WO2021009632A1 publication Critical patent/WO2021009632A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M10/61—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
    • H01M10/60—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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

  • a thermal management system for a battery module including a terminal of an electrochemical cell of a battery module, and a fluid conduit disposed relative to the terminal and configured to transmit a fluid therein for transferring heat to or from the terminal.
  • a battery module including a plurality of electrochemical cells, each cell of the plurality of electrochemical cells including a pair of terminals; a plurality of fluid conduits, each fluid conduit disposed relative to at least one terminal of at least one electrochemical cell of the plurality of electrochemical cells; an input fluid manifold, connected to a first end of at least one of the fluid conduits; and an output fluid manifold, connected to a second end of the at least one of the fluid conduits, wherein the input fluid manifold, the at least one fluid conduit, and the output fluid manifold define a fluid pathway configured to transmit a fluid for transferring heat to or from the terminal.
  • an electrical power system including a plurality of electrochemical cells, each cell of the plurality of electrochemical cells including a pair of terminals; a plurality of fluid conduits, each fluid conduit disposed relative to at least one terminal of at least one electrochemical cell of the plurality of electrochemical cells; a fluid inlet, connected to a first end of at least one of the fluid conduits; a fluid outlet, connected to a second end of the at least one of the fluid conduits; a fluid pump; and a heat exchanger; wherein the fluid inlet, the at least one fluid conduit, and the fluid outlet define a fluid pathway with the fluid pump and the heat exchanger.
  • FIG. 1 is a top view of a typical battery module in the prior art, illustrating electrical connections between electrochemical cells
  • FIG. 2 is a top view of a battery module thermal management system, in accordance with an embodiment of the present description
  • FIGS. 3A, 3B, and 3C provide perspective views of fluid conduits of a battery module thermal management system, in accordance with an embodiment of the present description
  • FIG. 4 is a top view of a battery module thermal management system, in accordance with an alternate embodiment of the present description
  • FIG. 5 is a perspective view of fluid conduits for a battery module thermal management system, in accordance with an alternate embodiment of the present description
  • FIG. 6 is a block diagram of an electrical power system, in accordance with an alternate embodiment of the present description.
  • FIG. 7 is a perspective view of fluid conduits for a battery module thermal management system, in accordance with an alternate embodiment of the present description.
  • a battery module shall include a plurality of electrochemical cells, the terminals of which may be connected in various arrangements in order to meet the power demands of a load (e.g., the motor of an electric vehicle).
  • One or more electrochemical cells may be connected to produce a battery, or a battery module (i.e., a battery pack, including one or more batteries).
  • An electrochemical cell as defined herein, is a device which can generate electrical energy from a chemical reaction.
  • Each electrochemical cell typically has two electrodes of dissimilar materials separated from each other by an electrolyte. When connected to wiring through a load, a chemical reaction occurs between the electrodes through the electrolyte, causing electrons to flow from the negative electrode to the positive electrode to produce electricity that runs the load.
  • Each electrochemical cell may include a pair of terminals, connected to an anode and cathode of the cell, respectively.
  • battery modules may be immersed in a dielectric fluid (e.g., 3M’s Novec Engineered Fluid), which cools the modules without causing an electrical short.
  • a dielectric fluid e.g., 3M’s Novec Engineered Fluid
  • 3M Novec Engineered Fluid
  • void space between adjacent cells may be minimized or eliminated, removing access to the walls of interior cells for either air or liquid direct cooling methods.
  • the fluid may also be used to transfer heat to the terminals, as well as to transfer heat away from them, to ensure a temperature within an ideal operating range for the electrochemical cells.
  • a heater e.g., an immersion heater
  • Any references to coolant fluid, thermal management liquid, thermal management fluid, or other liquid elements made herein shall be synonymous and shall also include liquids which may be used for other purposes (e.g., supplying heat to the terminals). The examples provided are illustrative and not meant to be limiting.
  • a thermal management system for a battery module includes a terminal of an electrochemical cell of a battery module, and a fluid conduit disposed relative to the terminal and configured to transmit a fluid therein for transferring heat to or from the terminal.
  • the fluid conduit may be a pipe or other enclosed channel transporting a fluid (e.g., a coolant fluid) between the terminal (or adjacent to the terminal) and a heat exchanging system (e.g., a system designed to remove excess heat from the fluid).
  • the fluid conduit may be of an electrically insulating material.
  • a prismatic cell e.g., a lithium-ion prismatic cell
  • Prismatic automotive cells are electrochemical cells which contain electrodes in a stacked or layered form, often contained in a rectangular housing or“can.” These cells are often used because they have a thin design and can better utilize the available space, improving the density and capacity of battery modules.
  • a typical prismatic automotive cell has flat, metallic terminal pads, allowing various types of connection hardware to be welded to them.
  • the thermal management system may include a thermally conducting member in contact with the terminal (e.g., welded to and effectively extending the terminal) and at least partially disposed within the fluid conduit such that the fluid passing through the fluid conduit flows over (i.e., is in contact with) the thermally conducting member.
  • a the thermally conducting member may be welded or otherwise connected to the terminal of the electrochemical cell, and may extend up into an opening or depression in the fluid conduit, such that a coolant fluid passing through the conduit passes over the thermally conducting member, absorbing heat from the member and away from the electrochemical cell (and from the battery module).
  • the terminal itself may include a fluid pathway (i.e., a channel allowing fluid to pass through the interior of the terminal), and this terminal fluid pathway may be in fluidic communication with the fluid conduit. That is, in some embodiments, the terminals of the electrochemical cells may not be simple, flat pads, but may instead be designed to connect to the fluid conduit and partially define the fluid pathway through which coolant flows.
  • the thermal management system may include a coolant fluid (i.e., a thermal management fluid) disposed within (e.g., flowing through) the fluid conduit.
  • the coolant fluid may be a dielectric fluid.
  • suitable coolant fluids may include or consist essentially of halogenated compounds or oils (e.g., mineral oils, synthetic oils, or silicone oils).
  • the halogenated compounds may include fluorinated compounds, chlorinated compounds, brominated compounds, or combinations thereof.
  • the halogenated compounds may include or consist essentially of fluorinated compounds.
  • the coolant fluids may have an electrical conductivity (at 25 degrees Celsius) of less than about le-5 S/cm, less than about le-6 S/cm, less than le-7 S/cm, or less than about le-10 S/cm. In some embodiments, the coolant fluids may have a dielectric constant that is less than about 25, less than about 15, or less than about 10, as measured in accordance with ASTM D 150 at room temperature.
  • the coolant fluids may have any one of, any combination of, or all of the following additional properties: sufficiently low melting point (e.g., ⁇ -40 degrees C) and high boiling point (e.g., > 80 degrees C for single phase heat transfer), high thermal conductivity (e.g., > 0.05 W/m-K), high specific heat capacity (e.g., > 800 J/kg-K), low viscosity (e.g., ⁇ 2 cSt at room temperature),, and non-flammability (e.g., no closed cup flashpoint) or low flammability (e.g., flash point > 100 F).
  • fluorinated compounds having such properties may include or consist of any one or combination of fluoroethers, fluorocarbons, fluoroketones, fhiorosulfones, and
  • fluorinated compounds having such properties may include or consist of partially fluorinated compounds, perfluorinated compounds, or a combination thereof.
  • fluoro- for example, in reference to a group or moiety, such as in the case of "fluoroalkylene” or “fluoroalkyl” or “fluorocarbon" or “fluorinated” means (i) partially fluorinated such that there is at least one carbon-bonded hydrogen atom, or (ii) perfluorinated.
  • perfluoro- for example, in reference to a group or moiety, such as in the case of "perfluoroalkylene” or “perfluoroalkyl” or “perfluorocarbon" or “perfluorinated” means completely fluorinated such that, except as may be otherwise indicated, there are no carbon- bonded hydrogen atoms replaceable with fluorine.
  • the fluid conduit of the thermal management system may include at least one fluid inlet and at least one fluid outlet.
  • the fluid inlet may be in fluidic communication with an input fluid manifold, through which the fluid inlet (and, in some embodiments, the fluid inlets of other fluid conduits disposed on or near the terminals of other electrochemical cells in the battery module) is supplied with coolant fluid.
  • the fluid outlet may be in fluidic communication with an output fluid manifold, which receives coolant fluid exiting the fluid conduit (and, in some embodiments, coolant fluid exiting other fluid conduits from other terminals).
  • the fluid inlet may accept fluid from a fluid circuit connecting the fluid conduit with a heat exchanging system.
  • the fluid outlet may transmit fluid from the fluid conduit to a fluid circuit connecting the fluid conduit to a heat exchanging system.
  • a battery module includes a plurality of electrochemical cells, a plurality of fluid conduits, an input fluid manifold, and an output fluid manifold.
  • each of the electrochemical cells includes a pair of terminals.
  • at least one of the fluid conduits is disposed relative to, or in direct contact with, at least one terminal of at least one of the electrochemical cells.
  • the input fluid manifold is connected to a first end of at least one of the fluid conduits, and the output fluid manifold is connected to a second end of the at least one of the fluid conduits.
  • the input fluid manifold, the fluid conduit, and the output fluid manifold define a fluid pathway configured to transmit a fluid for transferring heat to or from the terminal.
  • the fluid conduits may be of an electrically insulating material, such that the fluid pathway defined by the input fluid manifold, fluid conduit, and output fluid manifold will not define an electrical connection between two or more terminals.
  • the battery module further includes a coolant fluid disposed in and transmitted through the fluid pathway.
  • the coolant fluid may be a dielectric (i.e., electrically insulating) fluid.
  • the battery module may further include a plurality of thermally conducting members, such that each thermally conducting member is in proximity to and/or in contact with at least one terminal.
  • at least one of the thermally conducting members may be at least partially disposed within the fluid pathway such that coolant fluid passing through the fluid conduit is near or in direct contact with the thermally conducting member.
  • an electrical power system includes a plurality of electrochemical cells, a plurality of fluid conduits, a fluid inlet, a fluid outlet, a fluid pump, and a heat exchanger.
  • each of the electrochemical cells includes a pair of terminals, and each fluid conduit is disposed relative to at least one terminal of at least one of the electrochemical cells.
  • the fluid inlet is connected to a first end of at least one of the fluid conduits, and the fluid outlet is connected to a second end of the at least one fluid conduit.
  • the fluid inlet, the at least one fluid conduit, and the fluid outlet define a fluid pathway with the fluid pump and the heat exchanger.
  • the fluid conduits may be of an electrically insulating material, such that the fluid pathway defined by the fluid inlet, fluid conduit, and fluid outlet will not define an electrical connection between terminals.
  • the battery module further includes a coolant fluid disposed in and transmitted through the fluid pathway.
  • the coolant fluid may be a dielectric (i.e., electrically insulating) fluid.
  • the electrical power system may further include a plurality of thermally conducting members, such that each thermally conducting member is in proximity to and/or in contact with at least one terminal.
  • at least one of the thermally conducting members may be at least partially disposed within the fluid pathway such that coolant fluid passing through the fluid conduit is near or in direct contact with the thermally conducting member.
  • FIG. 1 is a top view of a typical battery module in the prior art.
  • FIG. 1 illustrates electrical connections between electrochemical cells 10 in a battery module 100.
  • electrical connections are made between one or both terminals 25 of one electrochemical cell 10 and one or more terminals 25 of another electrochemical cell 10.
  • the connections may be in the form of electrical busbars 20 (shown in FIG. 1 as dashed lines so terminals 25 may be seen).
  • electrochemical cells 10 are arranged such that the terminals 25 of each pair of adjacent cells are aligned (i.e., the polarity of the terminals in the pair of cells is aligned.)
  • the terminals 25 of each pair of adjacent cells are aligned (i.e., the polarity of the terminals in the pair of cells is aligned.)
  • the two negative (-) terminals 25 are electrically connected by one relatively short bus bar 20, and the two positive (+) terminals 25 (bottom right of FIG. 1) are electrically connected by another bus bar 20.
  • This creates pair (A) of electrochemical cells 10 which are electrically in“parallel” with each other.
  • next two electrochemical cells 10 up are connected in parallel with each other.
  • the positive terminals 25 of pair (A) share a bus bar 20 with the negative terminals 25 of pair (B), such that pair (A) is in“series” with pair (B).
  • the remaining electrochemical cells 10 in the example shown in FIG. 1 are similarly connected to complete battery module 100.
  • FIG. 2 provides a top view of an embodiment of a battery module thermal management system 200 of the present description.
  • the arrangement of the battery module depicted in FIG. 2 i.e., the number and orientation of electrochemical cells 10, the location and connections of bus bars 20, and the polarity of the terminals
  • bus bars 20 are shown as a solid pattern rather than dashed lines, and, accordingly, the terminals of the battery module are not visible (i.e., obscured by bus bars 20).
  • the arrangement and configuration of the battery modules shown in FIG. 1 and FIG. 2 are exemplary, and not intended to be limiting in any way. Any battery module configuration or arrangement/connection of electrochemical cells can be used.
  • Battery module thermal management system 200 includes one or more fluid conduits 30 which are disposed near and/or in contact with the terminals (not shown, beneath bus bars 20) of electrochemical cells 10.
  • fluid conduits 30 include a fluid inlet 30a, a fluid outlet 30b, and a connecting segment 30c, which together define a fluid pathway for transmitting a coolant fluid in proximity to the terminals for the purposes of removing heat from or adding heat to the battery module.
  • fluid flows (as indicated by arrows in FIG. 2) into one end of fluid inlet 30a, through connecting segment 30c, and out through fluid outlet 30b.
  • connecting segments 30c of fluid conduits 30 are in thermal communication with the terminals of the electrochemical cells 10.
  • FIGS. 3A-3C Details of this thermal communication (i.e., the connections between terminals and fluid conduits 30) are provided in FIGS. 3A-3C.
  • FIGS. 3A provides a perspective view of the connecting segments 30c of fluid conduits 30 (FIG. 2) of the battery module thermal management system of FIG. 2.
  • FIG. 3A shows only a single electrochemical cell 10 and only the connecting segments 30c, rather than the entire fluid conduits 30 of FIG. 2.
  • connecting segments 30c are in proximity to (disposed adjacent to) terminals 25 of electrochemical cell 10.
  • connecting segments 30c may be in direct contact with terminals 25, such that heat may be transmitted to or from terminals 25.
  • Coolant fluid 32 flows into connecting segments 30c (as shown in FIG. 2) and in proximity to (or direct contact with) terminals 25.
  • FIG. 3B illustrates how, in some embodiments, a thermally conducting member 25a may be attached to (e.g., welded to) terminal 25, and disposed such that it extends into an interior of connecting segment 30c. This may allow coolant fluid 32 to flow over thermally conducting member 25a in order to facilitate the transfer of heat to or from terminal 25.
  • Connecting segment 30c is shown as a dashed line in order to illustrate how thermally conducting member 25a extends into an interior of connecting segment 30c, in some embodiments.
  • FIG. 3B shows one example embodiment of thermally conducting member 25a, and is not intended to be limiting in any way.
  • Any appropriate shape of thermally conducting member 25a may be used, as long as it increases the amount of contact and/or thermal transfer between terminal 25 and fluid 32 flowing through connecting segment 30c.
  • thermally conducting member 25a may be a connector used to connect two or more connecting segments 30c to form a longer segment, such that fluid 32 flowing into a first half of connecting segment 30c flows through the connector (thermally conducting member 25a in connector form) and into a second half of connecting segment 30c.
  • the shape of thermally conducting member 25a may be any appropriate shape, including, but not limited to, fins, pin fins, wires, rectangular prisms, fingers, plates, or connectors.
  • FIG. 3C illustrates how, in some embodiments, the terminals of an electrochemical cell may themselves help define the fluid conduit or fluid pathway through which coolant may be routed.
  • adapted terminals 25b of electrochemical cell 10 may include an internal fluid pathway 26 (a terminal fluid pathway) which may be connected to connecting segments 30c.
  • the internal fluid pathway 26 may be electrically conducting (e.g., may be a channel through the electrically conducting material of the terminal itself).
  • the internal fluid pathway 26 may be an electrically insulating sleeve or liner within terminal 25b.
  • connecting segments 30c may be electrically insulating.
  • internal fluid pathway 26 may further include connectors, threaded segments, and/or seals/gaskets for connecting to and sealing against connecting segments 30c.
  • one of the terminal assemblies (including 25b, 26, and connecting segments 30c) in FIG. 3C is shown exploded, with connecting segments 30c in dashed lines, and the other terminal assembly is shown as assembled.
  • the example embodiments shown herein, including the configurations and connections of FIG. 3C, are exemplary only and not limiting in any way.
  • FIG. 4 is a top view of an alternate embodiment of a battery module thermal management system.
  • fluid conduits 30 are simplified into extended members which are substantially in parallel with a longitudinal direction of bus bars 20, such that coolant fluid flow (as shown by arrows in FIG. 4) flows from the terminals (not shown, beneath bus bars 20) of one electrochemical cell 10 to the terminals of an adjacent electrochemical cell 10, and so on along the length of the battery module.
  • one fluid conduit 30 is shown extending along each of the two sides (left and right sides in FIG. 4) of the battery module.
  • any appropriate number of shorter fluid conduits 30 may be used in combination to cover the length of a side of the battery module.
  • fluid conduits depicted herein are not intended to be limiting in any way. Any arrangement and/or configuration of fluid conduits may be used.
  • fluid conduits may only cover a subset of terminals of a battery module.
  • a separate fluid conduit, with its own fluid inlet and fluid outlet may be in thermal communication with each terminal of a battery module.
  • FIG. 5 is a perspective view of the connections between fluid conduits and terminals for the embodiment of the battery module thermal management system of FIG. 4. For clarity, only the fluid conduit 30 for one side of battery module 100 is shown.
  • thermally conducting members 25a are disposed on (e.g., welded to) terminals 25 of the electrochemical cells 10 of battery module 100.
  • the thermally conducting members 25a are in proximity to and/or in contact with one or more fluid conduits 30.
  • a coolant fluid (not shown) may be routed through fluid conduit 30 such that heat may be transferred between terminals 25 (through thermally conducting members 25a, in some embodiments) and the coolant fluid.
  • the battery module thermal management system may be part of a larger fluidic circuit in an electrical power system (e.g., the power system of an electric vehicle).
  • FIG. 6 is a block diagram of an electrical power system 300, in accordance with an embodiment described herein.
  • Battery module thermal management system 200 may be, for example, any of the example embodiments shown or described herein, including the configurations of FIGS. 2 and 4, although these configurations are examples only and not meant to be limiting.
  • battery module 100 has two module terminals 80n and 80p. Connected between module terminals 80n and 80p are an electrical load 305 (e.g., the power electronics controlling the motors of an electrical vehicle).
  • a fluidic circuit 350 is created by fluid conduits connected between the battery module thermal management system 200, a heat exchanger 320, and a pump 310.
  • Pump 310 causes the fluid (i.e., coolant, or thermal management fluid) to move through the fluidic circuit 350, passing through battery module thermal management system 200, where it collects heat from the terminals of the battery module 100 and removes it.
  • the thermal management fluid then exits the battery module thermal management system 200 and carries the excess heat to heat exchanger 320, which removes the heat from the fluid and returns it to the fluidic circuit 350.
  • FIG. 6 The arrangement of the components shown in FIG. 6 is one possible configuration, and is not meant to be limiting. Variations of the system exist which do not vary from the scope or intent of the description.
  • an immersion heater or similar heat source may be introduced into fluidic circuit 350 for the purpose of heating the fluid to add heat to the battery module 100 (e.g., in extreme cold conditions.)
  • heat exchanger 320 may interface to a conditioning loop 330 for a vehicle cabin or other appropriate application.
  • heat exchanger 320 may pass heat recovered from the thermal management fluid of fluidic circuit 350 to the conditioning loop 330, which may use the heat to warm the environment within a vehicle cabin.
  • each electrochemical cell 10 of battery module 100a may have a first terminal 25x on a first side of electrochemical cell 10 (e.g., atop side), and a second terminal 25y on a second side of electrochemical cell 50 (e.g., a bottom side).
  • fluid conduits 30 may be disposed on different (e.g., opposite) sides of electrochemical cells 10, providing fluid pathways (and thus, cell cooling) through thermally conducting members 25ax and 25ay on different sides of battery module 100a.
  • Such embodiments may be particularly beneficial in eliminating or reducing temperature gradients that occur within cells that are cooled from a single side of the cell.
  • electrochemical cells may be cylindrical cells, pouch cells, or any other appropriate type of cell or combination thereof.
  • the concepts discussed in the present disclosure apply to battery modules with any appropriate number and/or configuration of electrochemical cells.
  • “substantially aligned” will mean aligned to within 20% of a width of the objects being aligned.
  • Objects described as substantially aligned may, in some embodiments, be aligned to within 10% or to within 5% of a width of the objects being aligned.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Module de batterie comprenant une pluralité de cellules électrochimiques, chaque cellule de la pluralité de cellules électrochimiques comportant une paire de bornes ; une pluralité de conduits de fluide, chaque conduit de fluide étant disposé par rapport à au moins une borne d'au moins une cellule électrochimique de la pluralité de cellules électrochimiques ; un collecteur de fluide d'entrée, relié à une première extrémité d'au moins l'un des conduits de fluide ; et un collecteur de fluide de sortie, relié à une seconde extrémité du ou des conduits de fluide. Le collecteur de fluide d'entrée, le ou les conduits de fluide et le collecteur de fluide de sortie définissent un trajet de fluide conçu pour transmettre un fluide afin de transférer de la chaleur vers ou depuis le terminal.
PCT/IB2020/056490 2019-07-17 2020-07-09 Système de gestion thermique de module de batterie WO2021009632A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962875128P 2019-07-17 2019-07-17
US62/875,128 2019-07-17
US201962928705P 2019-10-31 2019-10-31
US62/928,705 2019-10-31

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WO2021009632A1 true WO2021009632A1 (fr) 2021-01-21

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2879228A1 (fr) * 2013-11-29 2015-06-03 Valeo Systemes Thermiques Module de batterie pour véhicule électrique ou hybride intégrant un échangeur de chaleur en contact avec les bornes du module
DE102014202129A1 (de) * 2014-02-06 2015-08-06 Siemens Aktiengesellschaft Batteriezellenkühlung
DE102014213671A1 (de) * 2014-07-15 2016-01-21 Robert Bosch Gmbh Zellverbinder mit einer Temperierungsvorrichtung, Batteriezelle, Batteriemodul und Kraftfahrzeug
US20170040653A1 (en) * 2014-04-14 2017-02-09 Williams Gradn Prix Engineering Limited Heat transfer system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2879228A1 (fr) * 2013-11-29 2015-06-03 Valeo Systemes Thermiques Module de batterie pour véhicule électrique ou hybride intégrant un échangeur de chaleur en contact avec les bornes du module
DE102014202129A1 (de) * 2014-02-06 2015-08-06 Siemens Aktiengesellschaft Batteriezellenkühlung
US20170040653A1 (en) * 2014-04-14 2017-02-09 Williams Gradn Prix Engineering Limited Heat transfer system
DE102014213671A1 (de) * 2014-07-15 2016-01-21 Robert Bosch Gmbh Zellverbinder mit einer Temperierungsvorrichtung, Batteriezelle, Batteriemodul und Kraftfahrzeug

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