WO2013084541A1 - Dispositif de réglage de la température destiné à un module de stockage de puissance - Google Patents

Dispositif de réglage de la température destiné à un module de stockage de puissance Download PDF

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Publication number
WO2013084541A1
WO2013084541A1 PCT/JP2012/070239 JP2012070239W WO2013084541A1 WO 2013084541 A1 WO2013084541 A1 WO 2013084541A1 JP 2012070239 W JP2012070239 W JP 2012070239W WO 2013084541 A1 WO2013084541 A1 WO 2013084541A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
fluid
storage module
power storage
exchange pack
Prior art date
Application number
PCT/JP2012/070239
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English (en)
Japanese (ja)
Inventor
良昭 山田
孝幸 土屋
邦彦 肥喜里
Original Assignee
Ｕｄトラックス株式会社
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Filing date
Publication date
Application filed by Ｕｄトラックス株式会社 filed Critical Ｕｄトラックス株式会社
Publication of WO2013084541A1 publication Critical patent/WO2013084541A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
    • 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
    • H01M10/6556—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
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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 present invention relates to a temperature adjusting device that adjusts the temperature of a power storage module capable of storing electric charge.
  • JP2003-272974A is an elastic resin material having a capacitor cell having a soft case in which a flexible laminated sheet is formed in a bag shape, and a slit into which a heat radiating fin formed at the end of the soft case of the capacitor cell is fitted.
  • a capacitor module including a heat transfer frame is disclosed. In this capacitor module, heat generated when the capacitor cell is charged and discharged is released to the outside through the heat transfer frame and the heat dissipation hard case in which the capacitor cells fitted in the heat transfer frame are stacked and accommodated. is doing.
  • the capacitor module of JP2003-272974A is formed by stacking a large number of capacitor cells, and the work of fitting the heat radiation fins of the capacitor cells individually into the slits of the heat transfer frame made of an elastic resin material is complicated. .
  • the present invention has been made in view of the above-described problems, and an object thereof is to improve the assemblability of the temperature adjustment device for a power storage module.
  • a temperature adjustment device that adjusts the temperature of a power storage module in which a plurality of power storage cells capable of storing charge are stacked, and is sandwiched between a pair of adjacent power storage cells.
  • a heat exchange pack formed of an elastic body and deformable according to expansion and contraction of the electricity storage cell, the heat exchange pack for supplying a fluid for heat exchange with the electricity storage cell to the inside.
  • a temperature adjustment device for a power storage module having a supply port and a discharge port for discharging to the outside.
  • FIG. 1 is a perspective view of a temperature control device for a power storage module according to an embodiment of the present invention.
  • FIG. 2 is a plan view of FIG.
  • FIG. 3 is a side view of FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
  • FIG. 5 is a fluid circuit diagram of the temperature control device for the power storage module according to the embodiment of the present invention.
  • a capacitor module 10 as a power storage module whose temperature is adjusted by the temperature adjusting device 100 will be described with reference to FIG.
  • the capacitor module 10 is configured by stacking a plurality of electric double layer capacitors (hereinafter simply referred to as “capacitors”) 1 as storage cells, as shown in FIG.
  • a chemical battery such as a lithium ion secondary battery or a nickel hydride secondary battery may be used as the storage cell.
  • the capacitor module 10 is connected in series to increase the voltage, and connected in parallel to increase the capacity. For example, when it is desired to increase the voltage of the capacitor module 10 to several hundred volts, several tens of capacitors 1 having a voltage of several volts are connected in series and used.
  • the capacitor 1 includes a soft case 2 formed in a rectangular bag shape, and a pair of electrode terminals 3 that are drawn out from the upper end of the soft case 2 and exposed.
  • the soft case 2 is formed by laminating a laminate film, which is a pair of flexible laminated sheets provided opposite to each other, in a bag shape.
  • the laminate film is a film material having a multilayer structure including a metal layer and a resin layer covering the metal layer.
  • a hard case formed of resin or metal may be used.
  • the soft case 2 Inside the soft case 2 is a laminate formed by sequentially laminating a plurality of positive and negative electrode collectors, and a separator interposed between the positive and negative electrode collectors to isolate them. A power storage unit (not shown) is accommodated.
  • the soft case 2 is sealed with an electrolyte filled therein. That is, in the soft case 2, a plurality of positive electrode collectors and negative electrode collectors alternately stacked via separators are accommodated together with the electrolytic solution.
  • electrolyte ions filled between the positive electrode collector and the negative electrode collector constitute an electric double layer, and charge is stored via the electrode terminal 3 so as to be charged and discharged.
  • the outer periphery of the soft case 2 is formed in a rectangular shape.
  • the soft case 2 has a housing portion 2a that is formed in a rectangular shape and houses a power storage unit therein, and a flange portion 2b that is formed by bonding a pair of laminate films on the outer periphery of the housing portion 2a.
  • the electrode terminal 3 is a pair of rectangular metal plates drawn from the same side of the soft case 2. One electrode terminal 3 is connected to the positive electrode collector electrode of the power storage unit, and the other electrode terminal 3 is connected to the negative electrode collector electrode of the power storage unit. The electrode terminal 3 protrudes outside through the mating surface of the laminate film in the soft case 2.
  • the electrode terminal 3 is connected by welding between the adjacent capacitors 1. As a result, adjacent capacitors 1 are connected in series. Instead of welding, the electrode terminals 3 may be connected by bolt fastening or the like.
  • the temperature adjustment device 100 includes a heat exchange pack 20 that is sandwiched between a pair of adjacent capacitors 1, is formed of an elastic body, and can be deformed according to expansion and contraction of the capacitor 1.
  • the temperature adjusting device 100 cools the capacitor 1 with the fluid supplied to and discharged from the heat exchange pack 20 and adjusts the temperature to an appropriate temperature at which the performance can be maintained.
  • a liquid having a high thermal conductivity such as a fluorine-based inert liquid, having an insulating property and a specific gravity that is not so high.
  • a fluorine-based inert liquid having an insulating property and a specific gravity that is not so high.
  • the heat exchange pack 20 is formed into a bag shape by an elastic body.
  • the heat exchange pack 20 is deformed according to expansion / contraction associated with charging / discharging of the capacitor 1, and the internal fluid is supplied / discharged by this deformation.
  • the heat exchange pack 20 has a pair of abutment surfaces 20a that abut against the respective accommodating portions 2a of a pair of adjacent capacitors 1.
  • the abutting surface 20a is formed in a substantially rectangular shape and is formed to be larger than the accommodating portion 2a. Thereby, it becomes possible for the contact surface 20a to contact
  • the heat exchange pack 20 has a supply port 21 for supplying a fluid for exchanging heat with the capacitor 1 and a discharge port 26 for discharging the internal fluid to the outside.
  • the supply port 21 is formed so as to open at the side of the lower end of the heat exchange pack 20.
  • the supply port 21 is connected to a supply-side connection passage 31 described later, and communicates with the supply ports 21 of other capacitors 1.
  • the supply port 21 is provided with a first check valve 22 that allows only the flow in the direction in which the fluid is supplied into the heat exchange pack 20.
  • the heat exchange pack 20 When the pair of capacitors 1 sandwiching the heat exchange pack 20 contracts, the heat exchange pack 20 is deformed and the volume increases.
  • the first check valve 22 When the volume of the heat exchange pack 20 is increased, the first check valve 22 is opened when the pressure of the fluid in the supply side connection passage 31 becomes larger than the pressure in the heat exchange pack 20. As a result, the fluid is supplied from the supply port 21 into the heat exchange pack 20 through the first check valve 22.
  • the discharge port 26 is provided at a higher position than the supply port 21. Specifically, the discharge port 26 is formed to open at the side of the upper end of the heat exchange pack 20. The discharge port 26 is connected to a discharge side connection passage 32 described later, and communicates with the discharge ports 26 of other capacitors 1. As shown in FIG. 4, the discharge port 26 is provided with a second check valve 27 that allows only the flow in the direction in which the fluid inside the heat exchange pack 20 is discharged to the outside.
  • the heat exchange pack 20 When the pair of capacitors 1 sandwiching the heat exchange pack 20 is expanded, the heat exchange pack 20 is deformed and the volume is reduced. When the volume of the heat exchange pack 20 is reduced, the second check valve 27 is opened when the pressure of the fluid in the heat exchange pack 20 becomes larger than the pressure of the fluid in the discharge side connection passage 32. . As a result, the fluid is discharged from the discharge port 26 to the discharge side connection passage 32 through the second check valve 27.
  • the temperature adjustment device 100 includes the heat exchange pack 20 that is sandwiched between the pair of capacitors 1 and has the fluid supply port 21 and the discharge port 26. Therefore, the temperature adjusting device 100 can be assembled by alternately laminating the capacitors 1 and the heat exchange packs 20 and supplying the fluid into the heat exchange packs 20 later. Therefore, the assemblability of the temperature adjusting device 100 can be improved.
  • the supply port 21 and the discharge port 26 are respectively provided at the vertices on the diagonal line in the contact surface 20 a.
  • the bottom portion 20 b of the heat exchange pack 20 is formed to be inclined so as to gradually increase from the supply port 21. That is, the bottom portion 20b of the heat exchange pack 20 is formed to be inclined with the supply port 21 as the lower end.
  • the top portion 20 c of the heat exchange pack 20 is formed to be inclined so as to gradually increase toward the discharge port 26. That is, the top portion 20c of the heat exchange pack 20 is formed to be inclined with the discharge port 26 as the upper end.
  • the fluid supplied from the supply port 21 at the lower end of the heat exchange pack 20 flows through the heat exchange pack 20 and is discharged from the discharge port 26 at the upper end. Therefore, even when air enters the heat exchange pack 20, the entered air rises in the liquid filling the heat exchange pack 20 and is discharged from the discharge port 26. Can be prevented from being formed.
  • the fluid supplied into the heat exchange pack 20 flows along the bottom portion 20b that gradually increases from the supply port 21, and flows along the top portion 20c that gradually increases toward the discharge port. Therefore, it is possible to prevent only the fluid in the vicinity of the center in the heat exchange pack 20 from flowing and staying without flowing the fluid at the end.
  • the fluid heated by heat exchange with the capacitor 1 rises in the heat exchange pack 20 due to the temperature difference. Therefore, the heated fluid is first discharged to the discharge side connection passage 32. Therefore, it is possible to prevent the fluid heated by heat exchange with the capacitor 1 from staying in the heat exchange pack 20. Therefore, since the cooled fluid can always be supplied into the heat exchange pack 20, the cooling efficiency of the capacitor 1 can be improved.
  • the capacitor 1 is stacked with the heat exchange pack 20 interposed therebetween and accommodated in the hard case 40.
  • the heat exchange pack 20 expands and a pressure is applied to the capacitor 1.
  • the capacitor 1 is compressed with an appropriate pressure and can maintain its performance.
  • the heat exchange pack 20 in an empty state is stacked between the capacitors 1 and accommodated in the hard case 40.
  • the fluid is supplied into the heat exchange pack 20 in a state where the capacitor module 10 is accommodated in the hard case 40.
  • the capacitor module 10 can be easily accommodated in the hard case 40 by assembling the heat exchange pack 20 in a contracted state.
  • the temperature adjusting device 100 includes a supply side connection passage 31 that connects the supply ports 21 of the heat exchange pack 20, a discharge side connection passage 32 that connects the discharge ports 26 of the heat exchange pack 20, and a fluid circulation passage 30.
  • An accumulator 35 that applies pressure to the fluid, and a radiator 39 that is provided in the fluid circulation passage 30 and cools the fluid flowing in the fluid circulation passage 30 are provided.
  • the supply side connection passage 31 is a tubular passage that connects all the supply ports 21 of the heat exchange pack 20 sandwiched between the stacked capacitors 1.
  • the supply side connection passage 31 is formed of an elastic material.
  • the discharge side connection passage 32 is a tubular passage that communicates all the discharge ports 26 of the heat exchange pack 20 sandwiched between the stacked capacitors 1.
  • the discharge side connection passage 32 is formed of an elastic material.
  • the discharge side connection passage 32 communicates with the supply side connection passage 31 to form a fluid circulation passage 30 through which fluid can circulate.
  • the accumulator 35 includes a diaphragm 36 that divides the interior into a liquid chamber 37 and a gas chamber 38.
  • the liquid chamber 37 is connected to the fluid circulation passage 30.
  • the gas chamber 38 is connected to an air reservoir tank 34 in which compressed air from a vehicle air pressure source is stored.
  • the accumulator 35 applies pressure to the fluid flowing through the fluid circulation passage 30 via the liquid chamber 37 by the air pressure inside the gas chamber 38.
  • the pressure applied to the fluid in the fluid circulation passage 30 by the accumulator 35 is set to an appropriate pressure for the capacitor 1 to maintain its performance. Accordingly, it is not necessary to apply pressure to the capacitor 1 using another member such as an urging member, so that the capacitor module 10 can be reduced in size and weight.
  • the contact surface 20 a of the heat exchange pack 20 is pressed against the accommodating portion 2 a of the capacitor 1, and the heat exchange pack 20 and the capacitor 1 are brought into close contact with each other. Can do. Thereby, the heat transfer efficiency between the heat exchange pack 20 and the capacitor 1 can be improved.
  • the accumulator 35 absorbs the fluctuation when the pressure of the fluid in the fluid circulation passage 30 fluctuates as the capacitor 1 expands and contracts. That is, by providing the accumulator 35, expansion / contraction associated with charging / discharging of the capacitor 1 is allowed.
  • the power storage cell when a chemical battery such as a lithium ion secondary battery or a nickel hydride secondary battery is used as the power storage cell, it is not necessary to apply pressure to the power storage cell. Therefore, when the electricity storage cell is a chemical battery, the pressure applied to the fluid in the fluid circulation passage 30 by the accumulator 35 is set to a pressure that can hold the electricity storage cell in the hard case 40.
  • a chemical battery such as a lithium ion secondary battery or a nickel hydride secondary battery
  • the radiator 39 exchanges heat with the fluid flowing through the fluid circulation passage 30 and cools it.
  • the fluid discharged from each heat exchange pack 20 is supplied to the radiator 39 via the discharge side connection passage 32.
  • the fluid cooled by the radiator 39 is supplied to each heat exchange pack 20 via the supply side connection passage 31.
  • the capacitor module 10 when the capacitor module 10 is cold immediately after starting, it is necessary to warm the capacitor 1 to an appropriate temperature capable of maintaining its performance.
  • a heater for heating the fluid flowing through the fluid circulation passage 30 may be provided instead of the radiator 39. The fluid heated by the heater is supplied into the heat exchange pack 20 so that the capacitor 1 can be warmed. Further, both the radiator 39 and the heater may be provided so that the fluid in the fluid circulation passage 30 can be adjusted to a desired temperature.
  • the pressure of the fluid flowing in the fluid circulation passage 30 is equal to the pressure of the fluid in the heat exchange pack 20. In this state, the fluid flow in the fluid circulation passage 30 remains stopped. At this time, the first check valve 22 and the second check valve 27 of the heat exchange pack 20 are both kept closed.
  • the first check valve 22 is kept closed because the pressure of the fluid in the heat exchange pack 20 is larger than the pressure of the fluid in the supply side connection passage 31. Therefore, the fluid in the supply side connection passage 31 is not supplied into the heat exchange pack 20.
  • the capacitor 1 contracts due to charging and discharging, the volume of the heat exchange pack 20 sandwiched between the capacitors 1 is expanded. Thereby, the pressure of the fluid in the heat exchange pack 20 becomes small.
  • the first check valve 22 of the heat exchange pack 20 is opened. As a result, the fluid in the supply side connection passage 31 is supplied from the supply port 21 into the heat exchange pack 20.
  • the second check valve 27 maintains the closed state because the pressure of the fluid in the heat exchange pack 20 is larger than the pressure of the fluid in the discharge side connection passage 32. Therefore, the fluid in the heat exchange pack 20 is not discharged into the discharge side connection passage 32.
  • the volume of the heat exchange pack 20 is expanded and contracted as the capacitor 1 expands and contracts.
  • the heat exchange pack 20 repeats the expansion and contraction of the volume, thereby supplying and discharging the fluid by the pump action. Therefore, it is not necessary to use a fluid pressure pump or the like to circulate the fluid. Therefore, since it is not necessary to use other power to circulate the fluid, the structure can be simplified and energy consumption can be reduced.
  • the supply port 21 of the heat exchange pack 20 is provided with a first check valve 22, and the discharge port 26 is provided with a second check valve 27. Thereby, the flow of the fluid becomes one direction, and the fluid warmed by the heat exchange with the capacitor 1 is prevented from flowing back into the heat exchange pack 20.
  • the fluid discharged to the discharge side connection passage 32 is cooled by the radiator 39, led to the supply side connection passage 31, and supplied to the heat exchange pack 20 again.
  • the fluid circulation passage 30 is a closed circuit, the amount of fluid flowing inside can be reduced. Therefore, the temperature adjusting device 100 can be reduced in size and weight.
  • a heat exchange pack 20 formed of an elastic body and having a fluid supply port 21 and a discharge port 26 is sandwiched between the pair of capacitors 1. Therefore, the temperature adjusting device 100 can be assembled by alternately laminating the capacitors 1 and the heat exchange packs 20 and supplying the fluid into the heat exchange packs 20 later. Therefore, the assemblability of the temperature adjusting device 100 can be improved.
  • the volume of the heat exchange pack 20 is expanded and contracted as the capacitor 1 expands and contracts.
  • the heat exchange pack 20 repeats the expansion and contraction of the volume, thereby supplying and discharging the fluid by the pump action. Therefore, it is not necessary to use a fluid pressure pump or the like to circulate the fluid. Therefore, since it is not necessary to use other power to circulate the fluid, the structure can be simplified and energy consumption can be reduced.
  • the capacitor 1 can be pressurized by the pressure of the fluid in the heat exchange pack 20. Therefore, the capacitor 1 can maintain its performance, and it is not necessary to apply pressure to the capacitor 1 using another member such as a biasing member, so that the capacitor module 10 can be reduced in size and weight. It becomes.
  • the fluid is supplied and discharged by the pump action of the heat exchange pack 20, but when the flow rate of the fluid is to be increased, a fluid pressure pump is provided to actively flow the fluid. You may do it.
  • the fluid flow direction is one direction depending on the direction in which the fluid pressure pump discharges the fluid, it is not necessary to provide the first check valve 22 and the second check valve 27.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

La présente invention a trait à un dispositif de réglage de la température permettant de régler la température d'un module de condensateur obtenu en empilant une pluralité de condensateurs qui sont en mesure de stocker une charge électrique, lequel dispositif de réglage de la température est équipé d'unités d'échange de chaleur qui sont prises en sandwich entre des paires de condensateurs adjacents, chacune des unités d'échange de chaleur étant constituée d'un corps élastique, qui est en mesure de se déformer avec l'expansion/la contraction des condensateurs, et étant dotée d'un orifice d'alimentation et d'un orifice d'évacuation permettant, respectivement, d'amener à l'intérieur et d'évacuer vers l'extérieur un fluide qui échange la chaleur avec le condensateur.
PCT/JP2012/070239 2011-12-07 2012-08-08 Dispositif de réglage de la température destiné à un module de stockage de puissance WO2013084541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-267730 2011-12-07
JP2011267730A JP2013120827A (ja) 2011-12-07 2011-12-07 蓄電モジュールの温度調整装置

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WO2013084541A1 true WO2013084541A1 (fr) 2013-06-13

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WO (1) WO2013084541A1 (fr)

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DE102022110062A1 (de) 2022-04-26 2023-10-26 Bayerische Motoren Werke Aktiengesellschaft Feststoffbatterie sowie Kraftfahrzeug mit einer solchen

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JP6520068B2 (ja) * 2014-11-21 2019-05-29 三菱自動車工業株式会社 バッテリーパックの冷却装置
JP6593143B2 (ja) * 2015-12-15 2019-10-23 三菱自動車工業株式会社 車両用電池冷却装置
KR101824592B1 (ko) * 2016-05-10 2018-03-15 삼화전기 주식회사 전기 이중층 커패시터 모듈
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CN114784407A (zh) * 2018-11-21 2022-07-22 宁德时代新能源科技股份有限公司 换热板及电池模组
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Publication number Priority date Publication date Assignee Title
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