WO2022056561A1 - Appareil de régulation de température pour cellules de batterie combinées en un module - Google Patents

Appareil de régulation de température pour cellules de batterie combinées en un module Download PDF

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Publication number
WO2022056561A1
WO2022056561A1 PCT/AT2021/060275 AT2021060275W WO2022056561A1 WO 2022056561 A1 WO2022056561 A1 WO 2022056561A1 AT 2021060275 W AT2021060275 W AT 2021060275W WO 2022056561 A1 WO2022056561 A1 WO 2022056561A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature control
battery cells
flow channel
channel
module
Prior art date
Application number
PCT/AT2021/060275
Other languages
German (de)
English (en)
Inventor
Norbert HEUBLEIN
Helmut Kastler
Original Assignee
Kreisel Electric Gmbh & Co Kg
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 Kreisel Electric Gmbh & Co Kg filed Critical Kreisel Electric Gmbh & Co Kg
Publication of WO2022056561A1 publication Critical patent/WO2022056561A1/fr

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
    • H01M10/65—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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/643—Cylindrical 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
    • H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
    • 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
    • H01M10/6567—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
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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

  • Temperature control device for battery cells combined to form a module
  • the invention relates to a temperature control device for individual battery cells assembled into a module and arranged in a common flow channel for direct flow of a temperature control fluid.
  • AT520928 discloses a temperature control device for individual battery cells assembled into a module.
  • the temperature control device has a base body which, together with the battery cells, forms a flow channel for a temperature control fluid which flows against the battery cells transversely to a longitudinal direction of the battery cells.
  • a temperature control fluid which flows against the battery cells transversely to a longitudinal direction of the battery cells.
  • the invention is therefore based on the object of proposing a temperature control device of the type described at the beginning, which enables a reduced temperature spread within a battery module with simultaneously high temperature control dynamics.
  • the invention solves the problem in that a guide element is provided between the battery cells in the flow channel, which divides the flow channel into a transverse to a longitudinal direction of the battery cells running collecting channel and branching off from this, running in the longitudinal direction of the battery cells temperature control channels, in which preferably the battery cell shell is flowed directly against by the temperature control fluid and whose length is 60-99% of the height of the flow channel and whose share of the total pressure loss within the flow channel is 60-99%.
  • a guide element is provided between the battery cells in the flow channel, which divides the flow channel into a transverse to a longitudinal direction of the battery cells running collecting channel and branching off from this, running in the longitudinal direction of the battery cells temperature control channels, in which preferably the battery cell shell is flowed directly against by the temperature control fluid and whose length is 60-99% of the height of the flow channel and whose share of the total pressure loss within the flow channel is 60-99%.
  • the actual heat exchange between temperature control fluid and battery cells takes place only in the temperature control channel running in the longitudinal direction of the battery cells, in which the temperature control fluid flows around the majority of the battery cell casing. In this way, the tempering fluid flows to all battery cells at almost the same temperature, regardless of their position in the module. In order to further counteract a temperature spread of the battery cells in the module, the same temperature conditions as well as the same flow conditions must prevail at the battery cells. In order to distribute the total volume flow of the tempering fluid homogeneously to all battery cells and thus to create the same flow conditions for each battery cell, the proportion is of the pressure loss generated by the temperature control channel in the total pressure loss within the flow channel 60 - 99%.
  • This proportion can be set, for example, by the cross-sectional ratios between the collecting duct and the temperature control ducts and/or by the ratio of the channel lengths of the collecting duct and the temperature control ducts in a form known to those skilled in the art.
  • the tempering fluid can first be distributed in the low-pressure-loss collection channel before it enters each tempering channel with almost the same volume flow, and thus almost the same temperature difference between the battery cell and the tempering fluid is achieved at each battery cell.
  • each battery cell can be representative of the other battery cells within a module, which means that voltage, temperature measurements or the like only have to be carried out on one battery cell and the other battery cells can thus be inferred.
  • tempering fluid itself, since according to the invention all battery cells are acted upon at all times by a temperature fluid with the same temperature and flow rate and thus there is no time-related temperature spread between battery cells positioned differently in the flow channel.
  • the guide element in the flow channel, the amount of temperature control fluid required is reduced, as a result of which the inertia of the temperature control process can be reduced.
  • the temperature control device can of course be used both for heating and for cooling the battery cells.
  • the tempering ducts open into a common collecting duct, which also runs transversely to the longitudinal direction of the battery cells and is flow-connected to a tempering fluid outlet.
  • the guide element can be a one-piece body, the openings for the Has battery cells.
  • the breakthrough openings can, for example, have a larger diameter than the battery cells, resulting in an annular gap as a temperature control channel.
  • the breakthrough openings can also touch the battery cell on the peripheral side in sections, that is to say have the same diameter as the battery cells, resulting in a plurality of temperature control channels distributed over the periphery.
  • the temperature control channel can also have a cross section that differs from the shape of the battery cell cross section. In order to further adjust the pressure drop in the tempering channel, it can be filled with a porous material or include various built-in components.
  • the mass of the guide element be less than the mass of the tempering fluid displaced by the guide element. This can be achieved, for example, when the density of the guide element is lower than the density of the tempering fluid, or when the guide element is hollow and evacuated. In the case of a liquid tempering fluid, the cavities can also be filled with gas.
  • the flow channel can be delimited by a base body having openings for the end sections of the battery cells.
  • the end sections guided through the openings are therefore not arranged in the flow channel and can therefore be electrically contacted with battery cells of another module in a simple manner.
  • the battery cells of a module can also be contacted in parallel at these end sections.
  • the parallel contacting of the battery cells takes place via an electrical conductor of the conducting element, which is connected at least in groups to the lateral surfaces of the battery cells, which form an electrical cell pole and on which the tempering fluid flows.
  • This electrical conductor can, for example, have contact tongues passing through the tempering channels transversely to the longitudinal direction.
  • contact tongues can be designed in this way be that they form a flow resistance to adjust the pressure loss. It is also conceivable that the base body has pairs of openings lying opposite one another in the longitudinal direction of the battery cells. In this case, therefore, both end sections of each battery cell lie outside the flow channel.
  • the heat transfer coefficient between the temperature control fluid and the battery cells in the area of the collecting channel is lower than in the area of the temperature control channels.
  • the section running in the collecting channel can be provided with insulation, for example, which can be applied electrochemically and/or consist of polymers.
  • the insulation between the surfaces of the battery cells and the temperature control fluid flowing around can advantageously form a seal between the battery cells and the openings arranged in the base body.
  • a further possibility for adjusting the heat transfer coefficient lies in roughening the battery cell section running in the temperature control channel or in turbulence-promoting structuring of the surface of the guide element facing the battery cell, which improves heat transfer.
  • the guide element can include measuring line receptacles. This means that no additional space is required for the measuring lines.
  • the measuring lines can be routed, for example, in the cavity or on the surface of the guide elements.
  • Fig. 1 shows a schematic section through a temperature control device according to the invention
  • Figure 2 is a plan view of Figure 1, partially sectioned along line II-II, on the same scale.
  • a temperature control device for individual battery cells 1 assembled into a module has a flow channel 2 in which the battery cells 1 are arranged.
  • a preferably liquid tempering fluid flows through the flow channel 2 and flows directly around the battery cells 1 .
  • a guide element 3 is provided in the flow channel 2 between the battery cells 1, which divides the flow channel 2 into a collecting channel 5 running transversely to the longitudinal direction 4 of the battery cells 1 and temperature control channels 6 branching off from this and running in the longitudinal direction 4 Splits.
  • the tempering channels 6 can also open into a common collecting channel 5 . According to the invention, the length L of the temperature control channels 6 is 60-99% of the height h of the flow channel 2.
  • the length L of the temperature control channels 6 is 80-99% of the height h of the flow channel 2. In a particularly preferred embodiment, the length L of the temperature control channels 6 90 - 99% of the height h of the flow channel 2. Due to the ratio according to the invention between the length L of the temperature control channels 6 and the height h of the flow channel 2, there is only a small heat exchange between the temperature control fluid and the battery cells 1 in the collecting channel 5, since only one small surface of the shell of the battery cells 1 flows around. This results in the advantage that the tempering fluid has almost the same temperature in the entire collecting duct 5 before it enters the tempering ducts 6, as a result of which each battery cell 1 is subjected to the same temperature difference, regardless of its position in the module.
  • the heat exchange takes place accordingly mainly in the tempering channels 6, in which the tempering fluid flows around the battery cell casing.
  • the proportion of the pressure loss caused by the temperature control channels 6 is 60 - 99% of the total pressure loss in the flow channel 2.
  • the tempering fluid is first distributed evenly in the collecting channel 5, as a result of which all tempering channels can be subjected to the same volume flow.
  • the proportion of the total pressure loss can be adjusted by the cross-sectional ratios between the collecting channel 5 and the temperature control channels 6 and/or by the ratio of the length L of the temperature control channels 6 and the length of the collecting channels 5 .
  • the temperature control fluid can be supplied to or removed from the temperature control device via temperature control fluid inlets 7 or temperature control fluid outlets 8 .
  • Structurally favorable conditions arise when the flow channel 2 is delimited by a base body 10 having openings 9 for the end sections of the battery cells 1 .
  • the end sections are therefore located outside of the flow channel and can therefore be electrically contacted with other battery cells 1 in a simple manner.
  • the base body 10 can have openings 9 lying opposite one another in pairs in the longitudinal direction 4 of the battery cells 1 . In this case, therefore, both end portions of each battery cell 1 can lie outside of the flow channel 2 .
  • the guide element 3 is designed in one piece for this purpose and has round openings 11 for the battery cells 1 , the diameter of the openings 11 being larger than the diameter of the round battery cells 2 .
  • the temperature control channels 6 can be annular gaps. The proportion of the pressure loss caused by the temperature control channel 6 in the total pressure loss in the flow channel 2 can be adjusted via the width of the annular gap. If the length L of the tempering channels is 660 - 99% of the height h of the flow channel 2, the Annular gap width should be 0.01 -2mm in order to achieve the desired proportion of the total pressure drop.
  • the mass of the guide element 3 can be less than the mass of the tempering fluid displaced by the guide element 3 .
  • the guide element 3 can include measuring line receptacles.
  • the insulation 12 can simultaneously form a seal between the battery cells 2 and the openings 9 arranged in the base body 10 .

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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)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un appareil de régulation de température pour des éléments de batterie individuels (1) qui sont réunis en un module et qui sont disposés dans un canal d'écoulement commun (2) pour diriger un flux incident par un fluide de régulation de température. Afin de permettre une dispersion de température réduite à l'intérieur d'un module de batterie avec une dynamique de régulation de température élevée en même temps, selon l'invention, un élément conducteur (3) est disposé dans le canal d'écoulement (2) entre les éléments de batterie (1) qui divise le canal d'écoulement (2) dans un canal de collecte (5) s'étendant transversalement à une direction longitudinale (4) des éléments de batterie (1) et des canaux de régulation de température (6) se ramifiant à partir dudit canal de collecte et s'étendant dans la direction longitudinale (4) des éléments de batterie (1), les canaux de régulation de température ayant chacun une longueur (L) qui est de 60 à 99 % de la hauteur (h) du canal d'écoulement (2) et une proportion de perte de pression totale à l'intérieur du canal d'écoulement (2) qui est de 60 à 99 %.
PCT/AT2021/060275 2020-09-18 2021-08-09 Appareil de régulation de température pour cellules de batterie combinées en un module WO2022056561A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50797/2020A AT523635B1 (de) 2020-09-18 2020-09-18 Temperiervorrichtung für zu einem Modul zusammengesetzte Batteriezellen
ATA50797/2020 2020-09-18

Publications (1)

Publication Number Publication Date
WO2022056561A1 true WO2022056561A1 (fr) 2022-03-24

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PCT/AT2021/060275 WO2022056561A1 (fr) 2020-09-18 2021-08-09 Appareil de régulation de température pour cellules de batterie combinées en un module

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AT (1) AT523635B1 (fr)
WO (1) WO2022056561A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116632421A (zh) * 2023-07-24 2023-08-22 宁德时代新能源科技股份有限公司 温度调节的方法、装置和计算机可读存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001075989A2 (fr) * 2000-04-04 2001-10-11 Moltech Power Systems, Inc. Groupe de batteries a refroidissement actif ayant une plus longue duree de vie muni
US20130149583A1 (en) * 2010-11-09 2013-06-13 Mitsubishi Heavy Industries, Ltd. Battery system
AT520928A4 (de) 2018-06-08 2019-09-15 Raiffeisenlandesbank Oberoesterreich Ag Temperiervorrichtung für einzelne, zu einem Modul zusammengesetzte Batteriezellen
WO2020097638A1 (fr) * 2018-11-15 2020-05-22 Raiffeisenlandesbank Oberösterreich Aktiengesellschaft Dispositif de refroidissement pour des cellules de batterie assemblées en un module

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4046463B2 (ja) * 2000-08-03 2008-02-13 三洋電機株式会社 電源装置
JP5384635B2 (ja) * 2008-07-26 2014-01-08 エルジー・ケム・リミテッド 優れた冷却効率の中型又は大型のバッテリーパックケース

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001075989A2 (fr) * 2000-04-04 2001-10-11 Moltech Power Systems, Inc. Groupe de batteries a refroidissement actif ayant une plus longue duree de vie muni
US20130149583A1 (en) * 2010-11-09 2013-06-13 Mitsubishi Heavy Industries, Ltd. Battery system
AT520928A4 (de) 2018-06-08 2019-09-15 Raiffeisenlandesbank Oberoesterreich Ag Temperiervorrichtung für einzelne, zu einem Modul zusammengesetzte Batteriezellen
WO2019232557A1 (fr) * 2018-06-08 2019-12-12 Raiffeisenlandesbank Oberösterreich Aktiengesellschaft Dispositif de régulation thermique pour des cellules e batterie individuelles assemblées en un module
WO2020097638A1 (fr) * 2018-11-15 2020-05-22 Raiffeisenlandesbank Oberösterreich Aktiengesellschaft Dispositif de refroidissement pour des cellules de batterie assemblées en un module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116632421A (zh) * 2023-07-24 2023-08-22 宁德时代新能源科技股份有限公司 温度调节的方法、装置和计算机可读存储介质

Also Published As

Publication number Publication date
AT523635B1 (de) 2021-10-15
AT523635A4 (de) 2021-10-15

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