WO2018151430A1 - Battery module comprising electroosmotic pump - Google Patents

Battery module comprising electroosmotic pump Download PDF

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Publication number
WO2018151430A1
WO2018151430A1 PCT/KR2018/001015 KR2018001015W WO2018151430A1 WO 2018151430 A1 WO2018151430 A1 WO 2018151430A1 KR 2018001015 W KR2018001015 W KR 2018001015W WO 2018151430 A1 WO2018151430 A1 WO 2018151430A1
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WO
WIPO (PCT)
Prior art keywords
compartment
battery module
battery
bottom plate
pump
Prior art date
Application number
PCT/KR2018/001015
Other languages
French (fr)
Korean (ko)
Inventor
고루브코브안드레
Original Assignee
삼성에스디아이 주식회사
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.)
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Publication date
Priority claimed from EP17156803.3A external-priority patent/EP3364492B1/en
Application filed by 삼성에스디아이 주식회사 filed Critical 삼성에스디아이 주식회사
Publication of WO2018151430A1 publication Critical patent/WO2018151430A1/en

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    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/56—Electro-osmotic dewatering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/04—Pumps for special use
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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 battery module, and more particularly, to a battery module including at least one compartment for accommodating a battery cell as a configuration of the battery module.
  • Rechargeable or secondary batteries differ from primary batteries in that charging and discharging can be repeated, the latter providing only an irreversible conversion of chemicals into electrical energy.
  • Low-capacity rechargeable batteries can be used as power sources for small electronic devices such as mobile phones, laptops, computers, and camcorders, while large-capacity rechargeable batteries can be used as power sources for hybrid vehicles.
  • the secondary battery may include an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a case accommodating the electrode assembly, and an electrode terminal electrically connected to the electrode assembly.
  • the electrolyte is injected into the case to enable charge and discharge of the battery by the electrochemical reaction of the positive electrode, the negative electrode and the electrolyte.
  • the shape of the case which may be, for example, cylindrical or rectangular, may vary depending on the use of the battery.
  • the rechargeable battery may be used in the form of a battery module composed of a plurality of unit battery cells coupled in series or in parallel to provide a high energy density, for example, for driving of a hybrid vehicle.
  • the battery module may implement a high-power rechargeable battery such as for an electric vehicle by interconnecting a plurality of unit battery cells according to the amount of power required.
  • the battery module may be configured in a block or modular form.
  • each battery may be coupled to a common current collector and a common battery management system and have a housing.
  • a plurality of battery cells are connected to form a sub module, and the plurality of sub modules are connected to form any one module.
  • the battery management function may be implemented at least partially at the module or submodule level, thereby improving compatibility.
  • One or more battery modules may be mechanically and electrically integrated, equipped with a thermal management system, and provided to be connected with one or more electrical consumer devices to form a battery system.
  • the battery module may be provided with a closed compartment or housing to receive at least a portion of the battery module and to protect it from environmental influences. If water is present, corrosion of the battery components must be prevented and damage to the electrical or electronic components of the battery module must be prevented.
  • the electrical or electronic components of the battery module have a temperature cycle due to the diffusion of high temperature.
  • gas exchange with the atmosphere should be made to avoid high pressure fluctuations inside the compartment.
  • Humid air may enter the components of the battery module during the gas exchange.
  • moisture inside the compartment may be condensed, and the condensed water promotes corrosion of electronic components inside the compartment.
  • the large compartment for the secondary battery module makes the situation worse.
  • the large surfaces of these compartments are difficult to withstand the pressure fluctuations of the gas in the temperature cycling situation. Therefore, the compartment needs to be provided with a pressure compensation opening toward the atmosphere.
  • Humid air can be exchanged through the pressure compensation openings while most of the cells are used and heated and cooled. Water condensed inside the cell compartment not only accelerates corrosion, but also reduces insulation resistance with regard to safety, and in the worst case can lead to internal short cuts in high voltage cells.
  • Controlling the humidity inside the cell compartment is difficult in terms of cost effectiveness. Water may be prevented from entering the compartment by the filter provided in the pressure compensation opening, but it is possible to prevent the inflow of water from the gaseous state through the filter. .
  • plastic materials commonly used in the automotive field such as polyamides PA6 and PA66, allow for some moisture migration or diffusion. Therefore, in the long term, when the partial pressure difference of moisture between the inside and the outside is large, moisture may flow into the compartment through the walls of the compartment.
  • the housing or compartment Since the housing or compartment has no water present for the entire life of the vehicle (more than 10 years), it is easy to cause a diffusion effect due to the partial pressure difference of water, and even a small water diffusion that does not lead to condensation of water has a long-term adverse effect. .
  • Embodiments of the present invention are to provide a battery system to ensure a long-term dry state for the compartment of the battery module.
  • a battery module comprising at least one compartment for accommodating the components of the battery module, the compartment comprising an electroosmotic pump.
  • the battery module includes one or more housings for receiving the components of the battery system.
  • This housing is designed to prevent external mechanical deformation. Furthermore, these housings must protect the components of the cell contained from harmful environmental factors, particularly liquid water, which can cause the corrosion process.
  • One embodiment of the present invention is based on the fact that during operation of the secondary battery module, inflow of moisture due to specific conditions, in particular in automotive applications, is inevitable.
  • condensate may be present inside the housing or compartment and may corrode components such as electronic equipment for regulating or controlling the operation of the terminals of the battery cells and the battery modules.
  • the mechanical integrity of the compartment can be degraded due to the corrosion process by the liquid water.
  • one embodiment of the present invention greatly improves the dryness of the interior of the compartment by having an electropenetrating pump provided to discharge liquid water from the compartment to the outside.
  • Electropenetrating pumps can be easily provided, for example, on the walls of compartments.
  • the electroosmotic pump can be very small, light in weight and save installation space.
  • the amount of water that condenses for a short time, such as 1 day, is quite small.
  • the electropenetrating pump is advantageous for discharging this small amount, and the power consumption during operation is low.
  • the compartment surrounds the plurality of battery cells.
  • the electropenetrating pump may be integrally integrated with the bottom plate of the compartment. Thus, part of the pump can replace the bottom plate area of the compartment.
  • the electropenetrating pump may comprise a porous hydrophilic region integrally integrated into the bottom plate of the compartment. That is, there is no additional frame or support member for securing the porous hydrophilic region to the bottom plate. Therefore, the installation space and weight can be reduced.
  • the electroosmotic pump is integrated into the bottom plate of the compartment, the bottom plate has a surface structure on its inner surface, and the electroosmotic pump may be installed at the lowest point of the surface structure.
  • the bottom plate has a kind of pattern or ditch that allows condensate to flow to the collection point.
  • An electropenetrating pump is placed at the collection point. As a result, the time to remove the condensate out of the compartment can be shortened.
  • the cooling unit may be provided adjacent to the electroinfiltration pump.
  • the cooling section leads to condensation of water vapor in the electropenetrating pump.
  • the electroosmotic pump is integrated in the bottom plate and the bottom plate comprises a surface structure, it is preferred that the bottom plate is cooled. That is, the bottom plate can act as the cooling unit.
  • the battery module may itself constitute the voltage source of the electropenetrating pump. That is, there is no additional external voltage source for the pump operation, thereby reducing the manufacturing process and the total cost of the battery system.
  • a vehicle including the battery module is provided.
  • FIG. 1 is a perspective view of a battery module according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a compartment in a battery module according to an embodiment of the present invention.
  • a component when referred to as being 'connected' or 'connected' to another component, the component may be directly connected to or connected to the other component, but in between It will be understood that may exist.
  • a component when referred to as 'directly connected' or 'directly connected' to another component, it should be understood that there is no other component in between.
  • the term 'comprises' or 'having' is only intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more. It is to be understood that it does not exclude in advance the possibility of the presence or addition of other features, numbers, steps, actions, components, parts or combinations thereof.
  • 'and / or' includes any combination of the plurality of listed items or any of the plurality of listed items.
  • 'A or B' may include 'A', 'B', or 'both A and B'.
  • an embodiment of the battery module 100 includes a plurality of battery cells 10 arranged in one direction and a heat exchange member 110 adjacent to a bottom surface of the plurality of battery cells 10.
  • the pair of end plates 18 are provided to face the wide surface of the battery cell 10 at the outside of the battery cell 10, and the connection plate 19 connects the pair of end plates 18 to form a plurality of end plates 18. It is provided to fix the battery cells 10 together.
  • the fastening portions 18a at both sides of the battery module 100 are fastened to the bottom plate 31 by bolts 140.
  • the bottom plate 31 constitutes a part of the compartment 30.
  • each battery cell 10 may be a rectangular (or rectangular) cell, a plurality of cells are stacked together in a wide surface direction to form a battery module.
  • each battery cell 10 includes a battery case configured to receive an electrode assembly and an electrolyte. The battery case is sealed by a cap assembly 14.
  • the cap assembly 14 includes a positive terminal 11, a negative terminal 12, and a vent 13 having different polarities.
  • the vent 13 serves as a passage through which gas generated from the battery cell 10 is discharged to the outside of the battery cell 10.
  • the positive electrode terminal 11 and the negative electrode terminal 12 of the adjacent battery cell 10 may be electrically connected through the bus bar 15, and the bus bar 15 may be fixed by a nut 16 or the like. Therefore, the battery module 100 may be provided by electrically connecting the plurality of battery cells 10 in one bundle, and may be used as a power supply unit.
  • the battery cell 10 may generate a large amount of heat during charging and discharging. Therefore, the battery module 100 may further include a heat exchange member 110 provided adjacent to the bottom surface of the battery cell 10. An elastic member 120 made of an elastic material such as rubber may be interposed between the bottom plate 31 and the heat exchange member 110.
  • Compartment 30 of battery module 100 has a pressure compensation opening 40 to the atmosphere and a plurality of battery cells 10 are embedded.
  • the pressure compensation opening 10 may include a device such as a filter for preventing the inflow of liquid water.
  • Compartment 30 may be formed of a metal such as aluminum.
  • An electropenetrating pump (EOP) 50 is provided which is integrated into the lower side of the compartment 30, more precisely, the bottom plate 31. EOP is based on the electropenetrating effect of uncharged liquid moving against a surface charged by an externally applied electric field.
  • the electropenetrating effect is a phenomenon on the contact surface of a solid and a liquid. Applying an electric field across the porous dielectric material causes liquid to flow across the dielectric material.
  • EOP has some outstanding features. EOP can produce a constant, pulse-free flow, and the size and direction of the flow in the EOP is easy to control. Electropenetration requires a charged solid surface to create an electroinfiltration flow (EOF).
  • EEF electroinfiltration flow
  • silica surface in contact with an aqueous solution is charged due to the deprotonation of silanol groups on the surface.
  • the charged surface attracts counter ions and repels coin ions, resulting in an electrical double layer (EDL).
  • EDL electrical double layer
  • EOP A fluid propulsion device based on EOF is called EOP.
  • EOP can be operated under a direct current (DC) electric field, and the material used to make the EOF is an open channel or a porous material.
  • the EOP 50 comprises a porous hydrophilic region 52 embedded in a portion of the compartment 30, preferably the bottom plate of the compartment 30 ( 31) is integrated.
  • the porous material may be made of a silica-based material or the like based on sintered glass.
  • the bottom plate 31 has a surface structure 32 for collecting water on the inner side, and can provide the collected water to the EOP 50 side.
  • surface structure 32 may be comprised of slopes, ditches, and the like that allow water to flow toward EOP 50.
  • the water may be condensed water inside the compartment or water introduced into the compartment from the outside.
  • the EOP 50 will be provided at the lowest point of the surface structure 32.
  • Electrodes 54 and 56 are positioned above and below the porous hydrophilic region 52, respectively. Electrodes 54 and 56 are connected to voltage source 60 and create an electric field in the porous hydrophilic region 52. The electrodes 54 and 56 are perforated to allow water vapor to condense (evaporate) on the surface of the porous hydrophilic region 52. The electrodes 54 and 56 may have a corrosion resistant coating.
  • the battery cell 10 provided inside the compartment 30 as a voltage source for the electrodes 54, 56.
  • a cooling unit (not shown) may be provided around the inner surface of the porous hydrophilic region 52. Accordingly, the temperature of the inner side surface may be lower than that of other components inside the compartment 30. As a result, the condensation of water vapor on the surface is promoted.
  • connection plate 30 compartment
  • 60 power supply unit 100: battery module

Abstract

The present invention provides a battery module. A battery module according to an embodiment of the present invention comprises at least one compartment for containing a constituent element of a battery cell, and the compartment comprises an electroosmotic pump.

Description

전기침투 펌프를 포함하는 전지 모듈Battery Module Including Electropenetrating Pump
본 발명은 전지 모듈에 관한 것으로서, 더욱 상세하게는 전지 모듈의 구성으로서 전지셀 등을 수용하기 위한 적어도 하나의 격실을 포함하는 전지 모듈에 관한 것이다.The present invention relates to a battery module, and more particularly, to a battery module including at least one compartment for accommodating a battery cell as a configuration of the battery module.
충전식 또는 이차전지는 충전 및 방전이 반복될 수 있다는 점에서 1차전지와 다르며, 후자는 화학물질에서 전기에너지로의 비가역적 변환만을 제공한다. 저용량의 충전식 전지는 휴대 전화, 노트북, 컴퓨터 및 캠코더와 같은 소형 전자장치의 전원으로 사용되고, 대용량의 충전식 전지는 하이브리드 자동차 등의 전원으로 사용될 수 있다.Rechargeable or secondary batteries differ from primary batteries in that charging and discharging can be repeated, the latter providing only an irreversible conversion of chemicals into electrical energy. Low-capacity rechargeable batteries can be used as power sources for small electronic devices such as mobile phones, laptops, computers, and camcorders, while large-capacity rechargeable batteries can be used as power sources for hybrid vehicles.
이차전지는 양극, 음극 및 상기 양극과 음극 사이에 개재된 세퍼레이터를 포함하는 전극조립체, 상기 전극조립체를 수용하는 케이스 및 상기 전극 조립체와 전기적으로 연결되는 전극단자를 포함할 수 있다.The secondary battery may include an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a case accommodating the electrode assembly, and an electrode terminal electrically connected to the electrode assembly.
전해액은 양극, 음극 및 상기 전해액의 전기 화학적 반응으로 전지의 충방전이 가능하도록 하기 위해 케이스 내부로 주입된다. 예컨대 원통형 또는 직사각형일 수 있는 케이스의 형상은 전지의 용도에 따라 다를 수 있다.The electrolyte is injected into the case to enable charge and discharge of the battery by the electrochemical reaction of the positive electrode, the negative electrode and the electrolyte. The shape of the case, which may be, for example, cylindrical or rectangular, may vary depending on the use of the battery.
충전식 전지는 직렬 또는 병렬로 결합된 다수의 단위전지셀로 구성되는 전지 모듈 형태로 사용됨으로써, 예컨대 하이브리드 자동차의 주행 등을 위한 높은 에너지밀도를 제공할 수 있다. The rechargeable battery may be used in the form of a battery module composed of a plurality of unit battery cells coupled in series or in parallel to provide a high energy density, for example, for driving of a hybrid vehicle.
즉, 전지 모듈은 필요한 전력량에 따라 다수의 단위전지셀을 상호 연결하여 전기 자동차용과 같이 고전력의 충전식 전지를 구현할 수 있다.That is, the battery module may implement a high-power rechargeable battery such as for an electric vehicle by interconnecting a plurality of unit battery cells according to the amount of power required.
전지 모듈은 블록형 또는 모듈형으로 구성될 수 있다. 블록형의 경우, 각각의 전지는 공통 집전체와 공통 전지 관리시스템에 결합되고 하우징을 가질 수 있다. The battery module may be configured in a block or modular form. In the case of the block type, each battery may be coupled to a common current collector and a common battery management system and have a housing.
모듈형의 경우, 복수의 전지셀이 연결되어 서브 모듈을 형성하고, 복수의 서브 모듈이 연결되어 어느 하나의 모듈을 형성한다. 전지 관리기능은 모듈 또는 서브 모듈 수준에서 적어도 부분적으로 구현될 수 있는 바, 호환성이 개선될 수 있다.In the case of the modular type, a plurality of battery cells are connected to form a sub module, and the plurality of sub modules are connected to form any one module. The battery management function may be implemented at least partially at the module or submodule level, thereby improving compatibility.
하나 이상의 전지 모듈은 기계적 및 전기적으로 통합되고, 열관리 시스템이 장착되며, 전지 시스템을 형성하기 위해 하나 이상의 전기소비장치와 연결되도록 구비될 수 있다.One or more battery modules may be mechanically and electrically integrated, equipped with a thermal management system, and provided to be connected with one or more electrical consumer devices to form a battery system.
전지 모듈은 전지 모듈의 적어도 일부를 수용하고 환경적 영향으로부터 보호하기 위해 폐쇄된 격실 또는 하우징이 마련될 수 있다. 물이 존재하는 경우 전지 구성품의 부식이 방지되어야 하고, 전지 모듈의 전기적 또는 전자적 구성요소의 손상을 방지해야 한다.The battery module may be provided with a closed compartment or housing to receive at least a portion of the battery module and to protect it from environmental influences. If water is present, corrosion of the battery components must be prevented and damage to the electrical or electronic components of the battery module must be prevented.
그러나, 자동차 환경 등에서 전지 모듈의 전기적 또는 전자적 구성요소는 고온의 확산으로 인해 온도순환이 일어난다. 온도순환 동안에는 격실 내부의 높은 압력 변동을 피하기 위해 대기와의 가스 교환이 이루어져야 한다.However, in the automotive environment, the electrical or electronic components of the battery module have a temperature cycle due to the diffusion of high temperature. During the temperature cycle, gas exchange with the atmosphere should be made to avoid high pressure fluctuations inside the compartment.
상기 가스 교환중에 다습한 공기가 상기 전지 모듈의 구성요소에 들어갈 수 있다. 또한, 격실의 온도가 낮아지면 상기 격실 내부의 습기가 응축될 수 있으며, 응축된 물은 격실 내부의 전자 부품 부식을 촉진한다.Humid air may enter the components of the battery module during the gas exchange. In addition, when the temperature of the compartment is lowered, moisture inside the compartment may be condensed, and the condensed water promotes corrosion of electronic components inside the compartment.
이차전지 모듈을 위한 대형 격실은 상황이 더 악화된다. 이러한 격실의 넓은 표면들은 상기 온도순환 상황에서 가스의 압력 변동을 견디기 어렵다. 따라서, 상기 격실에는 대기측으로 압력보상용 개구가 제공될 필요가 있다.The large compartment for the secondary battery module makes the situation worse. The large surfaces of these compartments are difficult to withstand the pressure fluctuations of the gas in the temperature cycling situation. Therefore, the compartment needs to be provided with a pressure compensation opening toward the atmosphere.
다습한 공기는 대부분 전지가 사용되어 가열 및 냉각되는 동안 상기 압력보상용 개구를 통해 교환될 수 있다. 전지 격실 내부에서 응축된 물은 부식을 가속시킬 뿐만 아니라, 안전과 관련하여 절연저항을 감소시키고, 최악의 경우 고전압 전지의 내부 숏컷으로 이어질 수 있다.Humid air can be exchanged through the pressure compensation openings while most of the cells are used and heated and cooled. Water condensed inside the cell compartment not only accelerates corrosion, but also reduces insulation resistance with regard to safety, and in the worst case can lead to internal short cuts in high voltage cells.
전지의 격실 내부의 습도를 조절하는 것은 비용상의 효율적 측면에서 어려운 일이다. 압력보상용 개구에 마련된 필터에 의해 격실 내부로 물이 유입되는 것을 방지할 수도 있겠으나, 액체 상태의 물에는 가능하지만 기체 상태의 수분이 상기 필터를 통과하여 격실 내부로 유입되는 것을 방지하기는 어렵다.Controlling the humidity inside the cell compartment is difficult in terms of cost effectiveness. Water may be prevented from entering the compartment by the filter provided in the pressure compensation opening, but it is possible to prevent the inflow of water from the gaseous state through the filter. .
또한, 폴리아미드 PA6 및 PA66 등과 같이 자동차 분야에서 흔히 사용되는 플라스틱 물질은 약간의 수분 이동 또는 확산을 허용한다. 따라서, 장기적으로 볼 때, 내부와 외부간 수분의 분압차가 큰 경우에는 격실의 벽들을 통해 수분이 격실 내부로 유입될 수 있다.In addition, plastic materials commonly used in the automotive field, such as polyamides PA6 and PA66, allow for some moisture migration or diffusion. Therefore, in the long term, when the partial pressure difference of moisture between the inside and the outside is large, moisture may flow into the compartment through the walls of the compartment.
하우징 또는 격실은 차량의 전체 수명(10년 이상) 동안 물이 존재하는 않는 상태이므로 수분의 분압차에 의한 확산 효과가 일어나기 쉬우며, 물의 응축에 이르지 못하는 작은 수분 확산이라도 장기적으로는 악영향을 미치게 된다.Since the housing or compartment has no water present for the entire life of the vehicle (more than 10 years), it is easy to cause a diffusion effect due to the partial pressure difference of water, and even a small water diffusion that does not lead to condensation of water has a long-term adverse effect. .
상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background art are only for the purpose of improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art.
본 발명의 실시예들은 전지 모듈의 격실에 대해 장기간 건조 상태를 보장하는 전지 시스템을 제공하는 것이다.Embodiments of the present invention are to provide a battery system to ensure a long-term dry state for the compartment of the battery module.
본 발명의 일실시예에 따르면, 전지 모듈의 구성요소를 수용하기 위한 적어도 하나 이상의 격실을 포함하는 전지 모듈이 제공되며, 격실은 전기침투 펌프를 포함한다.According to one embodiment of the invention, there is provided a battery module comprising at least one compartment for accommodating the components of the battery module, the compartment comprising an electroosmotic pump.
즉, 전지 모듈은 전지 시스템의 구성요소를 수용하기 위한 하나 이상의 하우징을 포함한다. 이 하우징은 외부적인 기계적 변형이 방되도록 설계된다. 나아가, 이러한 하우징은 부식 과정을 일으킬 수 있는 유해한 환경적 요인, 특히 액체상태의 물로부터 수용된 전지의 구성요소들을 보호해야 한다.That is, the battery module includes one or more housings for receiving the components of the battery system. This housing is designed to prevent external mechanical deformation. Furthermore, these housings must protect the components of the cell contained from harmful environmental factors, particularly liquid water, which can cause the corrosion process.
본 발명의 일실시예는 이차전지 모듈의 작동 중, 특히 자동차 응용 분야에서의 특정 조건 등에 의한 수분의 유입이 일어나는 것이 불가피하다는 점에 근거한다.One embodiment of the present invention is based on the fact that during operation of the secondary battery module, inflow of moisture due to specific conditions, in particular in automotive applications, is inevitable.
결과적으로, 상기 하우징 또는 격실 내부에는 응축수가 존재할 수 있고, 전지셀의 단자 및 전지 모듈의 작동을 조절 또는 제어하기 위한 전자 장비와 같은 구성요소를 부식시킬 수 있다. 또한, 격실의 기계적 완전성은 액체상태의 물에 의한 부식 과정으로 인해 악화될 수 있다. As a result, condensate may be present inside the housing or compartment and may corrode components such as electronic equipment for regulating or controlling the operation of the terminals of the battery cells and the battery modules. In addition, the mechanical integrity of the compartment can be degraded due to the corrosion process by the liquid water.
그러나, 본 발명의 일실시예는 격실로부터 액체상태의 물을 외부로 배출하도록 마련된 전기침투 펌프를 구비함으로써 격실 내부의 건조성을 크게 향상시킨다.However, one embodiment of the present invention greatly improves the dryness of the interior of the compartment by having an electropenetrating pump provided to discharge liquid water from the compartment to the outside.
전기침투 펌프는 예컨대 격실의 벽 등에 쉽게 마련될 수 있다. 또한, 전기 침투 펌프는 매우 작고 무게가 가벼우며 설치공간이 절약될 수 있다. 1일과 같이 단시간동안 응축되는 물의 양은 상당히 적은데, 전기침투 펌프는 이러한 작은 양을 배출하는 데에 유리하고, 작동 중의 전력소비가 낮다.Electropenetrating pumps can be easily provided, for example, on the walls of compartments. In addition, the electroosmotic pump can be very small, light in weight and save installation space. The amount of water that condenses for a short time, such as 1 day, is quite small. The electropenetrating pump is advantageous for discharging this small amount, and the power consumption during operation is low.
격실은 복수의 전지 셀을 둘러싼다. 본 발명의 일실시예에 따르면, 전기침투 펌프는 격실의 바닥판에 일체로 통합될 수 있다. 따라서, 펌프의 일부는 격실의 바닥판 영역을 대체할 수 있다.The compartment surrounds the plurality of battery cells. According to one embodiment of the invention, the electropenetrating pump may be integrally integrated with the bottom plate of the compartment. Thus, part of the pump can replace the bottom plate area of the compartment.
전기침투 펌프는 격실의 바닥판에 일체로 통합된 다공성의 친수성 영역을 포함할 수 있다. 즉, 바닥판에 상기 다공성의 친수성 영역을 고정하기 위한 부가적인 프레임이나 지지부재가 존재하지 않는다. 따라서, 설치공간과 무게를 감소시킬 수 있다.The electropenetrating pump may comprise a porous hydrophilic region integrally integrated into the bottom plate of the compartment. That is, there is no additional frame or support member for securing the porous hydrophilic region to the bottom plate. Therefore, the installation space and weight can be reduced.
상기 전기침투 펌프는 상기 격실의 바닥판에 일체화되고, 상기 바닥판은 그 내면에 표면 구조물을 가지며, 상기 전기침투 펌프는 상기 표면 구조물의 최하지점에 설치될 수 있다.The electroosmotic pump is integrated into the bottom plate of the compartment, the bottom plate has a surface structure on its inner surface, and the electroosmotic pump may be installed at the lowest point of the surface structure.
즉, 바닥판은 응축수가 수집지점으로 흘러가게 하는 일종의 패턴 또는 도랑 등을 가진다. 전기침투 펌프는 상기 수집지점에 배치된다. 그 결과, 응축수를 격실 밖으로 제거하는 시간이 단축될 수 있다.That is, the bottom plate has a kind of pattern or ditch that allows condensate to flow to the collection point. An electropenetrating pump is placed at the collection point. As a result, the time to remove the condensate out of the compartment can be shortened.
본 발명의 다른 실시 예에 따르면, 냉각부가 전기침투 펌프와 인접하게 제공될 수 있다. 냉각부는 전기침투 펌프에서 수증기가 응축되도록 유도한다.According to another embodiment of the present invention, the cooling unit may be provided adjacent to the electroinfiltration pump. The cooling section leads to condensation of water vapor in the electropenetrating pump.
전기침투 펌프가 바닥판에 통합되고 바닥판이 표면 구조물을 포함하는 경우, 바닥판이 냉각되는 것이 바람직하다. 즉, 바닥판은 상기 냉각부로서 작용할 수 있다.If the electroosmotic pump is integrated in the bottom plate and the bottom plate comprises a surface structure, it is preferred that the bottom plate is cooled. That is, the bottom plate can act as the cooling unit.
전지 모듈은 그 자체가 전기침투 펌프의 전압원을 구성할 수 있다. 즉, 펌프 작동을 위한 추가적인 외부 전압원이 존재하지 않게 하고, 이에 따라 전지 시스템의 제조 프로세스 및 총 비용이 감소 될 수 있다.The battery module may itself constitute the voltage source of the electropenetrating pump. That is, there is no additional external voltage source for the pump operation, thereby reducing the manufacturing process and the total cost of the battery system.
본 발명의 또 다른 실시예에 따르면, 상기 전지 모듈을 포함하는 차량이 제공된다.According to another embodiment of the present invention, a vehicle including the battery module is provided.
상술한 바와 본 발명의 실시예들은 전지 모듈의 격실에 대해 장기간 건조 상태를 보장할 수 있다.As described above and the embodiments of the present invention can ensure a long-term dry state for the compartment of the battery module.
도 1은 본 발명의 일실시예에 따른 전지 모듈의 사시도이다. 1 is a perspective view of a battery module according to an embodiment of the present invention.
도 2는 본 발명의 일실시예에 따른 전지 모듈에서 격실의 단면을 나타낸 도면이다.2 is a cross-sectional view of a compartment in a battery module according to an embodiment of the present invention.
아래에서는 첨부한 도면을 참고로 하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.
그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙였다.As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.
본 명세서에서, 동일한 구성요소에 대해서 중복된 설명은 생략한다.In this specification, duplicate descriptions of the same components are omitted.
또한 본 명세서에서, 어떤 구성요소가 다른 구성요소에 '연결되어' 있다거나 '접속되어' 있다고 언급된 때에는, 그 다른 구성요소에 직접적으로 연결되어 있거나 또는 접속되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다. 반면에 본 명세서에서, 어떤 구성요소가 다른 구성요소에 '직접 연결되어' 있다거나 '직접 접속되어' 있다고 언급된 때에는, 중간에 다른 구성요소가 존재하지 않는 것으로 이해되어야 할 것이다.Also, in the present specification, when a component is referred to as being 'connected' or 'connected' to another component, the component may be directly connected to or connected to the other component, but in between It will be understood that may exist. On the other hand, in the present specification, when a component is referred to as 'directly connected' or 'directly connected' to another component, it should be understood that there is no other component in between.
또한, 본 명세서에서 사용되는 용어는 단지 특정한 실시예를 설명하기 위해 사용되는 것으로써, 본 발명을 한정하려는 의도로 사용되는 것이 아니다. Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
또한 본 명세서에서, 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함할 수 있다. Also, in this specification, the singular forms may include the plural forms unless the context clearly indicates otherwise.
또한 본 명세서에서, '포함하다' 또는 '가지다' 등의 용어는 명세서에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부품, 또는 이들을 조합한 것이 존재함을 지정하려는 것일 뿐, 하나 또는 그 이상의 다른 특징, 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 할 것이다.Also, as used herein, the term 'comprises' or 'having' is only intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more. It is to be understood that it does not exclude in advance the possibility of the presence or addition of other features, numbers, steps, actions, components, parts or combinations thereof.
또한 본 명세서에서, '및/또는' 이라는 용어는 복수의 기재된 항목들의 조합 또는 복수의 기재된 항목들 중의 어느 항목을 포함한다. 본 명세서에서, 'A 또는 B'는, 'A', 'B', 또는 'A와 B 모두'를 포함할 수 있다.Also in this specification, the term 'and / or' includes any combination of the plurality of listed items or any of the plurality of listed items. In the present specification, 'A or B' may include 'A', 'B', or 'both A and B'.
도 1을 참조하면, 전지 모듈(100)의 일실시예는 일방향으로 배열된 복수의 전지셀(10)과, 상기 복수의 전지셀(10) 하면에 인접하는 열교환부재(110)를 포함한다. 한 쌍의 엔드플레이트(18)는 전지셀(10)의 외측에서 전지셀(10)의 넓은면에 대향하도록 마련되고, 연결플레이트(19)가 상기 한 쌍의 엔드플레이트(18)를 연결하여 복수의 전지셀(10)을 함께 고정하도록 마련된다. 전지 모듈(100) 양측의 체결부(18a)는 볼트 (140)에 의해 바닥판(31)에 체결된다. 바닥판(31)은 격실(30)의 일부를 구성한다.Referring to FIG. 1, an embodiment of the battery module 100 includes a plurality of battery cells 10 arranged in one direction and a heat exchange member 110 adjacent to a bottom surface of the plurality of battery cells 10. The pair of end plates 18 are provided to face the wide surface of the battery cell 10 at the outside of the battery cell 10, and the connection plate 19 connects the pair of end plates 18 to form a plurality of end plates 18. It is provided to fix the battery cells 10 together. The fastening portions 18a at both sides of the battery module 100 are fastened to the bottom plate 31 by bolts 140. The bottom plate 31 constitutes a part of the compartment 30.
여기서, 각각의 전지셀(10)은 각형(또는 직사각형)셀일 수 있고, 복수의 셀은 넓은면 방향으로 함께 적층되어 전지 모듈을 형성한다. 또한, 각각의 전지셀(10)은 전극조립체 및 전해질을 수용하도록 구성된 전지케이스를 포함한다. 상기 전지케이스는 캡조립체(14)에 의해 밀폐되어 있다. Here, each battery cell 10 may be a rectangular (or rectangular) cell, a plurality of cells are stacked together in a wide surface direction to form a battery module. In addition, each battery cell 10 includes a battery case configured to receive an electrode assembly and an electrolyte. The battery case is sealed by a cap assembly 14.
상기 캡조립체(14)는 극성이 서로 다른 양극단자(11), 음극단자(12) 및 벤트(13)를 구비한다. 상기 벤트(13)는 전지셀(10)에서 발생된 가스가 전지셀(10)의 외부로 배출되는 통로 역할을 한다. The cap assembly 14 includes a positive terminal 11, a negative terminal 12, and a vent 13 having different polarities. The vent 13 serves as a passage through which gas generated from the battery cell 10 is discharged to the outside of the battery cell 10.
인접한 전지셀(10)의 양극단자(11)와 음극단자(12)는 버스바(15)를 통해 전기적으로 연결되고, 버스바(15)는 너트(16)등에 의해 고정될 수 있다. 따라서, 전지 모듈(100)은 복수의 전지셀(10)을 하나의 묶음으로 전기적으로 연결하여 마련될 수 있고, 전원부로 사용할 수 있다. The positive electrode terminal 11 and the negative electrode terminal 12 of the adjacent battery cell 10 may be electrically connected through the bus bar 15, and the bus bar 15 may be fixed by a nut 16 or the like. Therefore, the battery module 100 may be provided by electrically connecting the plurality of battery cells 10 in one bundle, and may be used as a power supply unit.
전지셀(10)은 충방전시 많은 양의 열을 발생시킬 수 있다. 따라서, 전지 모듈 (100)은 전지셀(10)의 하면에 인접하여 마련되는 열교환부재(110)를 더 구비할 수 있다. 상기 바닥판(31)과 열교환부재(110) 사이에는 고무 등의 탄성 물질로 이루어진 탄성부재(120)가 개재될 수 있다.The battery cell 10 may generate a large amount of heat during charging and discharging. Therefore, the battery module 100 may further include a heat exchange member 110 provided adjacent to the bottom surface of the battery cell 10. An elastic member 120 made of an elastic material such as rubber may be interposed between the bottom plate 31 and the heat exchange member 110.
도 2는 격실(30)의 기본 구조를 개략적으로 도시한다. 전지 모듈(100)의 격실 (30)은 대기로의 압력보상 개구(40)를 가지며 복수의 전지셀(10)이 내장된다. 상기 압력보상 개구(10)는 액상의 물이 유입되는 것을 방지하기 위한 필터 등의 장치를 포함할 수 있다. 격실(30)은 알루미늄 등과 같은 금속으로 형성될 수 있다. 2 schematically shows the basic structure of the compartment 30. Compartment 30 of battery module 100 has a pressure compensation opening 40 to the atmosphere and a plurality of battery cells 10 are embedded. The pressure compensation opening 10 may include a device such as a filter for preventing the inflow of liquid water. Compartment 30 may be formed of a metal such as aluminum.
격실(30)의 하부측, 보다 정확하게는 바닥판(31)에 일체화되는 전기침투 펌프 (EOP)(50)가 제공된다. EOP는 외부적으로 인가된 전기장에 의해 대전된 표면에 대해 대전되지 않은 액체가 움직이는 전기침투 효과를 기반으로 한다.An electropenetrating pump (EOP) 50 is provided which is integrated into the lower side of the compartment 30, more precisely, the bottom plate 31. EOP is based on the electropenetrating effect of uncharged liquid moving against a surface charged by an externally applied electric field.
전기침투 효과는 고체와 액체의 접촉면에 대한 현상이다. 다공성의 유전체 물질을 가로지르는 전기장을 인가하면 상기 유전체 물질을 가로질러 액체가 흐르게 된다.The electropenetrating effect is a phenomenon on the contact surface of a solid and a liquid. Applying an electric field across the porous dielectric material causes liquid to flow across the dielectric material.
EOP는 몇 가지 뛰어난 특징을 가진다. EOP는 일정하고 펄스가 없는 흐름을 생성할 수 있으며 EOP에서 흐름의 크기와 방향은 조절하기 용이하다. 전기침투는 전기침투흐름(EOF)을 생성하기 위해 대전된 고체 표면이 필요하다. EOP has some outstanding features. EOP can produce a constant, pulse-free flow, and the size and direction of the flow in the EOP is easy to control. Electropenetration requires a charged solid surface to create an electroinfiltration flow (EOF).
대부분의 표면은 수용액과 접촉할 때 자연적으로 유한한 전하밀도를 얻게 된다. 예를 들어, 수용액과 접촉한 실리카 표면은 표면상의 실라놀 그룹의 탈 양성자화로 인해 대전된다.Most surfaces naturally have finite charge densities when in contact with aqueous solutions. For example, the silica surface in contact with an aqueous solution is charged due to the deprotonation of silanol groups on the surface.
대전된 표면은 반대이온을 끌어당기고 동전하이온을 밀어내며, 그 결과 전기이중층(EDL)을 형성한다. 전기장이 상기 표면과 평행하게 인가되면, EDL영역의 양이온은 전기장의 방향으로 이동하게 된다.The charged surface attracts counter ions and repels coin ions, resulting in an electrical double layer (EDL). When an electric field is applied parallel to the surface, the cations in the EDL region move in the direction of the electric field.
이와 같이 이동하는 이온들은 액체를 끌어당겨 상기 액체의 이동을 유도한다. 상기 액체의 이동이 앞서 언급한 EOF에 해당한다. EOF에 기반한 유체 추진 장치를 EOP라고 한다. EOP는 직류(DC) 전기장하에서 작동될 수 있고, EOF를 만드는 데에 사용되는 재료는 개방형 채널 또는 다공성 물질 등이다. These moving ions attract the liquid and induce the movement of the liquid. The movement of the liquid corresponds to the above mentioned EOF. A fluid propulsion device based on EOF is called EOP. EOP can be operated under a direct current (DC) electric field, and the material used to make the EOF is an open channel or a porous material.
도 2에 도시된 본 발명의 일실시예에 따르면, EOP(50)는 격실(30)의 일부에 매립된 다공성의 친수성 영역(52)을 포함하고, 바람직하게는 격실(30)의 바닥판(31)에 일체화된다. 상기 다공성의 물질은 소결유리(sintered glass)를 기반으로 하는 실리카계 물질 등으로 이루어질 수 있다.According to one embodiment of the invention shown in FIG. 2, the EOP 50 comprises a porous hydrophilic region 52 embedded in a portion of the compartment 30, preferably the bottom plate of the compartment 30 ( 31) is integrated. The porous material may be made of a silica-based material or the like based on sintered glass.
바닥판(31)은 내측면상에 물을 수집하기 위한 표면 구조(32)를 가지고, 수집된 물을 EOP(50)측으로 제공할 수 있다. 예컨대, 표면 구조(32)는 물이 EOP(50)를 향해 흐르게 하는 경사면, 도랑 등으로 이루어질 수 있다.The bottom plate 31 has a surface structure 32 for collecting water on the inner side, and can provide the collected water to the EOP 50 side. For example, surface structure 32 may be comprised of slopes, ditches, and the like that allow water to flow toward EOP 50.
여기서, 상기한 물은 격실 내부의 응축수 또는 외부로부터 격실 내부로 유입된 물일 수 있다. 이러한 실시예에 따르면, EOP(50)는 표면 구조(32)의 최하 지점에 제공될 것이다.Here, the water may be condensed water inside the compartment or water introduced into the compartment from the outside. According to this embodiment, the EOP 50 will be provided at the lowest point of the surface structure 32.
다공성의 친수성 영역(52)의 상하에는 각각 전극(54, 56)이 위치한다. 전극(54, 56)은 전압원(60)에 연결되고 상기 다공성의 친수성 영역(52)에 전기장을 형성한다. 상기 전극(54, 56)은 상기 다공성의 친수성 영역(52) 표면상에서 수증기가 응축(증발)될 수 있도록 천공되어 있다. 상기 전극(54, 56)은 내부식성 코팅을 가질 수 있다. Electrodes 54 and 56 are positioned above and below the porous hydrophilic region 52, respectively. Electrodes 54 and 56 are connected to voltage source 60 and create an electric field in the porous hydrophilic region 52. The electrodes 54 and 56 are perforated to allow water vapor to condense (evaporate) on the surface of the porous hydrophilic region 52. The electrodes 54 and 56 may have a corrosion resistant coating.
격실(30) 내부의 온도가 이슬점 이하로 떨어지면, 수증기는 액체상태의 물로 응축된다. 다공성의 친수성 영역(52) 내측면에서 액체상태의 물은 전기침투 효과에 의해 외부로 이동된다. 상기 물은 격실(30)의 외부에서 증발할 수 있다. 따라서, 다공성의 친수성 영역(52) 외측면을 대기와 접촉하도록 유지하는 것이 유리하다.When the temperature inside the compartment 30 drops below the dew point, the water vapor condenses into liquid water. On the inner surface of the porous hydrophilic region 52, the liquid water is moved outward by the electropenetrating effect. The water may evaporate outside of the compartment 30. Thus, it is advantageous to maintain the outer surface of the porous hydrophilic region 52 in contact with the atmosphere.
상기한 과정은 다공성의 친수성 영역(52) 내측면에 응축된 액체상태의 물이 존재하는 한 반복된다. 따라서, 모든 냉각(또는 응축) 사이클에서 격실(30) 내부의 물/증기 분율이 감소되고, 내부 공기의 습기가 감소한다.The above process is repeated as long as there is condensed liquid water on the inner surface of the porous hydrophilic region 52. Thus, the water / vapor fraction inside compartment 30 is reduced in all cooling (or condensation) cycles, and the moisture in the interior air is reduced.
전지 모듈(100)의 제조 공정을 단순화하기 위해, 전극(54, 56)에 대한 전압원으로서 격실(30) 내부에 제공된 상기 전지셀(10)을 사용하는 것이 유리하다.In order to simplify the manufacturing process of the battery module 100, it is advantageous to use the battery cell 10 provided inside the compartment 30 as a voltage source for the electrodes 54, 56.
다른 실시예에 따르면, 다공성의 친수성 영역(52) 내측면 주변에 냉각부(미도시)가 제공될 수 있다. 따라서, 상기 내측면의 온도는 격실(30) 내부의 다른 구성에 비해 낮아질 수 있다. 그 결과, 수증기가 표면상에서 응축되는 것이 촉진된다.According to another embodiment, a cooling unit (not shown) may be provided around the inner surface of the porous hydrophilic region 52. Accordingly, the temperature of the inner side surface may be lower than that of other components inside the compartment 30. As a result, the condensation of water vapor on the surface is promoted.
본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.
- 부호의 설명 -Description of the sign
10 : 전지셀 11, 12 : 전극단자10: battery cell 11, 12: electrode terminal
13 : 벤트 14 : 캡조립체13 vent 14 cap assembly
15 : 버스바 16 : 너트15 busbar 16: nut
18 : 엔드플레이트 18a : 체결부18: end plate 18a: fastening portion
19 : 연결플레이트 30 : 격실19: connection plate 30: compartment
31 : 바닥판 32 : 표면 구조31: bottom plate 32: surface structure
40 : 압력보상 개구 50 : 전기침투 펌프40: pressure compensation opening 50: electroosmotic pump
52 : 다공성 친수성 영역 54, 56 : 전극52: porous hydrophilic region 54, 56: electrode
60 : 전원부 100 : 전지 모듈60: power supply unit 100: battery module
110 : 열교환부재 120 : 탄성부재110: heat exchange member 120: elastic member
140 : 볼트140: Bolt

Claims (12)

  1. 전지셀을 수용하는 적어도 하나의 격실을 포함하고,At least one compartment for receiving a battery cell,
    상기 격실은 전기침투 펌프를 포함하는 전지 모듈.The compartment is a battery module comprising an electroosmotic pump.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 전기침투 펌프는 상기 격실의 바닥판에 일체화되는 전지 모듈.The electroosmotic pump is integrated into the bottom plate of the compartment.
  3. 청구항 2에 있어서,The method according to claim 2,
    상기 전기침투 펌프는 상기 바닥판과 일체화된 다공성의 친수성 영역을 포함하는 전지 모듈.The electroosmotic pump includes a porous hydrophilic region integrated with the bottom plate.
  4. 청구항 3에 있어서,The method according to claim 3,
    상기 다공성의 친수성 영역은 실리카계 물질을 포함하는 전지 모듈.And the porous hydrophilic region comprises a silica-based material.
  5. 청구항 2에 있어서,The method according to claim 2,
    상기 전기침투 펌프는 상기 다공성의 친수성 영역 상측 및 하측에 각각 위치된 한 쌍의 전극을 포함하는 전지 모듈.The electroosmotic pump includes a pair of electrodes located above and below the porous hydrophilic region, respectively.
  6. 청구항 5에 있어서,The method according to claim 5,
    상기 한 쌍의 전극은 천공되고 내부식성 코팅을 가지는 전지 모듈.And the pair of electrodes are perforated and have a corrosion resistant coating.
  7. 청구항 1에 있어서,The method according to claim 1,
    상기 전기침투 펌프와 인접하는 냉각부가 제공되는 전지 모듈.A battery module provided with a cooling unit adjacent to the electropenetrating pump.
  8. 청구항 7에 있어서,The method according to claim 7,
    상기 냉각부는 상기 격실의 바닥판에 해당하는 전지 모듈.The cooling module is a battery module corresponding to the bottom plate of the compartment.
  9. 청구항 1에 있어서,The method according to claim 1,
    상기 전기침투 펌프의 전압원을 더 포함하는 전지 모듈.The battery module further comprises a voltage source of the electroosmotic pump.
  10. 청구항 1에 있어서,The method according to claim 1,
    상기 전지셀은 복수이고, 상기 격실은 상기 복수의 전지셀을 둘러싸는 전지 모듈.The battery cell is a plurality, the compartment is a battery module surrounding the plurality of battery cells.
  11. 청구항 2에 있어서,The method according to claim 2,
    상기 바닥판은 내측면에 표면 구조를 가지며, 상기 전기침투 펌프는 상기 표면 구조의 최하 지점에 제공되는 전지 모듈.The bottom plate has a surface structure on the inner surface, the electro-osmotic pump is provided at the lowest point of the surface structure.
  12. 청구항 1 내지 4 중 어느 한 항에 따른 전지 모듈을 포함하는 차량.Vehicle comprising a battery module according to any one of claims 1 to 4.
PCT/KR2018/001015 2017-02-20 2018-01-23 Battery module comprising electroosmotic pump WO2018151430A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP17156803.3A EP3364492B1 (en) 2017-02-20 2017-02-20 Battery module including an electroosmotic pump
EP17156803.3 2017-02-20
KR1020180007846A KR102308655B1 (en) 2017-02-20 2018-01-22 Battery module including an electroosmotic pump
KR10-2018-0007846 2018-01-22

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074768A1 (en) * 2002-10-18 2004-04-22 Anex Deon S. Electrokinetic pump having capacitive electrodes
US7149085B2 (en) * 2004-08-26 2006-12-12 Intel Corporation Electroosmotic pump apparatus that generates low amount of hydrogen gas
KR20070065871A (en) * 2004-08-04 2007-06-25 더 보드 오브 트러스티스 오브 더 리랜드 스탠포드 주니어 유니버시티 Fuel cell with electroosmotic pump
KR20070097337A (en) * 2006-03-28 2007-10-04 가시오게산키 가부시키가이샤 Connecting structure, flow path control section, fuel cell-type power generation device, and electronic apparatus
US20160233482A1 (en) * 2013-09-18 2016-08-11 Robert Bosch Gmbh Device and method for removing moisture from a battery housing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074768A1 (en) * 2002-10-18 2004-04-22 Anex Deon S. Electrokinetic pump having capacitive electrodes
KR20070065871A (en) * 2004-08-04 2007-06-25 더 보드 오브 트러스티스 오브 더 리랜드 스탠포드 주니어 유니버시티 Fuel cell with electroosmotic pump
US7149085B2 (en) * 2004-08-26 2006-12-12 Intel Corporation Electroosmotic pump apparatus that generates low amount of hydrogen gas
KR20070097337A (en) * 2006-03-28 2007-10-04 가시오게산키 가부시키가이샤 Connecting structure, flow path control section, fuel cell-type power generation device, and electronic apparatus
US20160233482A1 (en) * 2013-09-18 2016-08-11 Robert Bosch Gmbh Device and method for removing moisture from a battery housing

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