WO2022234975A1 - 냉각 성능이 향상된 배터리 팩 및 이를 포함하는 자동차 - Google Patents
냉각 성능이 향상된 배터리 팩 및 이를 포함하는 자동차 Download PDFInfo
- Publication number
- WO2022234975A1 WO2022234975A1 PCT/KR2022/005523 KR2022005523W WO2022234975A1 WO 2022234975 A1 WO2022234975 A1 WO 2022234975A1 KR 2022005523 W KR2022005523 W KR 2022005523W WO 2022234975 A1 WO2022234975 A1 WO 2022234975A1
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- WO
- WIPO (PCT)
- Prior art keywords
- battery
- pack
- battery module
- coolant
- inlet
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title description 16
- 239000002826 coolant Substances 0.000 claims abstract description 82
- 239000000110 cooling liquid Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
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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
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—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
- H01M10/64—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack and a vehicle including the same, and more particularly, to a battery pack capable of effectively increasing the cooling efficiency of a battery cell, and a vehicle including the same.
- a battery pack typically needs to include a large number of battery modules, and in order to increase energy density, the plurality of battery modules are clustered in a very narrow space. It is often composed of
- the present invention has been devised to solve the above problems, and by adopting a method of directly cooling a battery cell through an insulating coolant, to provide a battery pack that increases the cooling efficiency of the battery cell, and a vehicle including the same The purpose.
- Another object of the present invention is to reduce the manufacturing cost of the battery pack and achieve miniaturization of the battery pack.
- a battery pack comprising: a pack case having a coolant inlet and a coolant outlet through which an insulating coolant flows in and out; a cross beam disposed inside the pack case and provided to form a space through which the insulating coolant can pass; and a plurality of battery modules including a plurality of battery cells, each of which is disposed in a space partitioned by the cross beam; includes
- the pack case may be in an airtight state except for the coolant inlet and the coolant outlet.
- the plurality of battery cells included in the battery module are in direct contact with the insulating coolant.
- the insulating coolant may flow into an inlet positioned at one side of the battery module, and the insulating coolant may flow out to an outlet positioned opposite the inlet across the battery module.
- the battery module may include a plurality of corner areas, and each of the inlet and the outlet of the battery module may be located in any one of the plurality of corner areas.
- the insulating coolant leaked from the outlet of a specific battery module may flow into the inlet of an adjacent battery module.
- the insulating coolant flowing into the coolant inlet of the pack case may sequentially pass through all the battery modules included in the battery pack and then flow out to the coolant outlet.
- a plurality of battery cells included in the battery module may be disposed at a predetermined distance from each other.
- the arrangement density of the plurality of battery cells included in the battery module may gradually increase or decrease gradually in a specific direction.
- the arrangement density of the battery cells included in the battery module may be formed to be lower as the distance from the shortest path among the paths from the inlet to the outlet increases.
- the cross beam may be spaced apart from the side cover of the pack case by a predetermined distance.
- the cross beam may be in contact with a side cover of the pack case, and at least a portion of the cross beam may have an opening through which the insulating coolant can flow in and out.
- a vehicle according to an embodiment of the present invention includes a battery pack according to an embodiment of the present invention.
- the efficient cooling of the battery pack is made possible by the structure in which the insulating coolant and each battery cell are in direct contact, and the cross beam and/or the specific arrangement structure of the battery cell inside the battery pack.
- the battery pack can be miniaturized and the manufacturing cost is reduced.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a plan view of a battery pack according to an embodiment of the present invention.
- FIG 3 is a plan view of a battery pack according to another embodiment of the present invention.
- FIG. 4A is a perspective view of a battery pack according to another embodiment of the present invention.
- FIG. 4B is a cross-sectional view taken along line A-A' in FIG. 4A as viewed from the direction perpendicular to the cut surface.
- Fig. 4C is a cross-sectional view showing another embodiment different from Fig. 4B.
- FIG. 5 is an enlarged plan view of the dotted line portion of FIG. 2 .
- FIG. 6 is a plan view showing still another implementation from FIG. 5 .
- FIG. 7 is a perspective view showing a vehicle including the battery pack of the present invention.
- FIG. 1 is a perspective view of a battery pack according to an embodiment of the present invention
- FIG. 2 is a plan view of the battery pack according to an embodiment of the present invention.
- the battery pack 1 includes a pack case 10 , a cross beam 20 , and a battery module 30 .
- a battery pack 1 may be used, for example, in an electric vehicle 2 or the like.
- the pack case 10 includes a lower cover 11 , an upper cover 12 , and a side cover 13 .
- the pack case 10 includes a cooling liquid inlet P1 and a cooling liquid outlet P2 functioning as a passage through which the insulating cooling liquid flows in and out.
- the pack case 10 accommodates the cross beam 20 and the battery module 30 therein.
- the pack case 10 may function to protect the plurality of battery modules 30 from external impact, and thus, the material thereof is preferably hard, but is not limited thereto.
- the pack case 10 is illustrated by a dotted line.
- the cooling liquid inlet P1 and the cooling liquid outlet P2 may be formed in the side cover 13 , through which the insulating cooling liquid may be introduced and discharged.
- the coolant inlet P1 and the coolant outlet P2 may be formed on the lower cover 11 or the upper cover 12 . Since the insulating coolant passes through the pack case 10 , the pack case 10 may be in an airtight state except for the coolant inlet P1 and the coolant outlet P2 . Accordingly, the insulating coolant flowing into the coolant inlet P1 does not leak out of the pack case 10 . On the other hand, the insulating coolant flowing into the coolant inlet P1 of the pack case 10 sequentially passes through all the battery modules 30 included in the battery pack 1 and then goes to the coolant outlet P2. may leak.
- the insulating coolant can be cooled through direct contact with all the battery cells 31 included in the battery pack 1 , so that cooling efficiency can be improved.
- the cooling liquid may be a liquid having high insulating performance, such as insulating cooling oil, but is not limited thereto.
- FIG. 2 is a plan view of a battery pack according to an embodiment of the present invention
- FIG. 3 is a plan view of a battery pack according to another embodiment of the present invention
- FIG. 4 is a battery according to another embodiment of the present invention. It is a perspective and cross-sectional view of the pack.
- the cross beam 20 may include at least one horizontal beam 21 and at least one vertical beam 22 .
- the horizontal beam 21 and the vertical beam 22 may cross each other approximately perpendicularly.
- a cross-shaped cross beam 20 in which one transverse beam 21 and one longitudinal beam 22 intersect each other is shown, and in FIG. 3 , two transverse beams 211 and 212 are shown.
- a cross beam 20 having a shape in which one longitudinal beam 22 intersects each other is shown.
- the inner space of the pack case 10 can be divided into 4 spaces.
- the pack case 10 when the cross beam 20 has a shape in which two horizontal beams 211 and 212 and one vertical beam 22 cross each other approximately perpendicularly, the pack case The inner space of (10) may be divided into six spaces. In this way, a plurality of inner spaces of the pack case 10 may be partitioned by one or more horizontal beams 21 and one vertical beam 22 , and the battery module 30 may be disposed in each partitioned space. have.
- the vertical beam 22 may be formed in plurality.
- the cross beam 20 may include three or more transverse beams, and may include two or more vertical beams.
- the inner space of the pack case 10 may be divided into eight or more spaces.
- the cross beam 20 is spaced apart from the side cover 13 of the pack case 10 by a predetermined interval or a structure in which an open part is formed in the cross beam 20, one battery module accommodation space A cooling liquid passage through which the insulating cooling liquid can pass from the battery module accommodating space adjacent thereto may be formed in the pack case 10 . That is, the cross beam 20 may be provided to form a space through which the insulating coolant can pass.
- both ends in the longitudinal direction (parallel to the X-axis) of the transverse beam 21 are spaced apart from the side cover 13 of the pack case 10 by a predetermined distance.
- One end of the longitudinal beam 22 (in the direction parallel to the Y-axis) is spaced apart from the side cover 13 of the pack case 10 by a predetermined distance.
- the insulating coolant may pass through the gap G formed between the cross beam 20 and the side cover 13 .
- the arrows shown in FIG. 2 show the schematic flow of the insulating coolant.
- the insulating cooling liquid can pass through the entire area in the battery pack 1 only by applying a simple structure such as the cross beam 20 , thereby increasing the cooling efficiency.
- FIG. 4A is a perspective view of a battery pack according to another embodiment of the present invention
- FIG. 4B is a cross-sectional view taken along line A-A' in FIG. 4A, viewed from a direction perpendicular to the cut surface
- FIG. 4C is FIG. 4B and is a cross-sectional view showing another embodiment.
- the cross beam 20 is in contact with the side cover 13 of the pack case 10 without a gap.
- the cross beam 20 is formed with an opening through which the insulating coolant can flow in and out.
- the shape of the opening may be a notch shape (H 1 ).
- the opening may have a hole shape (H 2 ).
- the shape of the opening is not limited thereto, and any shape may be used as long as the shape of the insulating coolant can flow in and out.
- the cross beam 20 is in contact with the side cover 13 of the pack case 10 without a gap, the battery pack 1 can be sufficiently supported by the cross beam 20 . Accordingly, even when an external shock such as an automobile accident occurs, the battery cells 31 inside the battery pack 1 can be effectively protected.
- a structure in which the cross beam 20 is spaced apart from the side cover 13 of the pack case 10 by a predetermined distance is spaced apart from the side cover 13 of the pack case 10 by a predetermined distance (refer to FIG. 2 ), or an open portion is formed in the cross beam 20
- a structure in which the cross beam 20 is spaced apart from the side cover 13 of the pack case 10 by a predetermined distance is applied to the transverse beam, and an open portion is formed in the cross beam 20 to the vertical beam. can be applied, and vice versa.
- FIG. 5 is an enlarged plan view of the dotted line portion in FIG. 2
- FIG. 6 is a plan view showing another embodiment from FIG. 5 .
- the battery module 30 is defined as an aggregate in which a plurality of battery cells 31 are gathered, and the battery module 30 does not necessarily include a physical battery module case. However, it goes without saying that the battery module 30 may include a battery module case in another embodiment of the present invention.
- the battery module 30 includes a plurality of battery cells 31 .
- the battery module 30 may include a plurality of corner areas 301 , 302 , 303 , and 304 .
- 6 shows a case in which the overall shape of the battery module 30 is approximately rectangular when viewed from a plan view, and accordingly, only the case having four corner areas 301 , 302 , 303 , 304 is shown. has been
- the battery module 30 of the present invention is not limited to this shape.
- the battery module 30 may not include a physical battery module case.
- the battery module 30 is an aggregate in which a plurality of battery cells 31 are gathered, specifically, located in the inner space of the pack case 10 partitioned by the cross beam 20 . It means an aggregate of battery cells 31 .
- the battery module 30 includes an inlet and an outlet through which the insulating coolant introduced into the pack case 10 flows in and out.
- the inlet and outlet may refer to, for example, a pipe and/or a hole that functions as a passage for the insulating coolant, but, unlike this, in describing the flow of the insulating coolant in the battery module 30 , the description is convenient. It may be just a name introduced for
- the battery module 30 includes a separate module case (not shown) accommodating the plurality of battery cells 31 , in order for the insulating coolant to directly contact the battery cells 31 , the insulating coolant is applied to the module case.
- Substantial passageways for inflow and outflow must exist. Accordingly, in this case, the inlet and the outlet may refer to a physical element such as a pipe and/or a hole functioning as a passage.
- the inlet and the outlet may refer to an area in which the insulating coolant flows in and out, rather than an actual physical element.
- a physical element such as a guide plate or pipe for well guiding the flow of the insulating coolant in the inflow region and the outflow region of the battery module 30 insulating coolant may also be applied. Accordingly, in this case, despite the absence of the module case, the inlet and the outlet may refer to physical elements.
- a plurality of spaces partitioned by the cross beam 20 is formed by a gap G formed by the space between the cross beam 20 and the side cover 13 or the cross beam 20 . They are communicated with each other by an opening having a shape such as a notch or a hole to be formed. That is, the outlet of the battery module 30 positioned on one side with the horizontal beam 21 or the vertical beam 22 interposed therebetween and the inlet of the battery module 30 positioned on the other side are the cross beam 20 itself. It is provided at a position corresponding to the coolant passage formed in the or formed between the cross beam 20 and the side cover 13 .
- the inlet and outlet of the battery module 30 may be respectively located in any one of the plurality of corner areas 301 , 302 , 303 , and 304 .
- the inlet is located in the lower left corner area 301 and the outlet is located in the upper right corner area 302 , so that the insulating coolant flowing into the inlet is the battery It may pass through the module 30 and flow out to the outlet.
- the insulating coolant flowing into the inlet located on one side of the battery module 30 crosses the battery module 30 and is located on the opposite side of the inlet. It may be a structure that flows out to an outlet.
- an insulating coolant is introduced into an inlet located in the lower left corner region 301 of FIG. 5 , and an outlet on the opposite side of the inlet crosses the battery module 30 , that is, an outlet located in the corner region 302 . It may have a structure in which the cooling liquid flows out.
- the insulating coolant leaked from the outlet of a specific battery module 30 may flow into the inlet of the adjacent battery module 30 .
- the insulating coolant flowing into the coolant inlet P1 of the pack case 10 sequentially passes through all the battery modules 30 included in the battery pack 1, and then flows out to the coolant outlet P2.
- the insulating coolant introduced into the first battery module 30A through the coolant inlet P1 moves from the inlet of the first battery module 30A to the outlet. and flows into the second battery module 30B through the coolant passage.
- the insulating coolant flowing into the inlet of the second battery module 30B flows into the third battery module 30C through the outlet and the coolant passage of the second battery module 30B.
- the insulating coolant flowing into the inlet of the third battery module 30C flows into the fourth battery module 30D through the outlet and the coolant passage of the third battery module 30C.
- the insulating coolant flowing into the inlet of the fourth battery module 30D is discharged to the outside of the battery pack 1 through the outlet and the coolant outlet P2 of the fourth battery module 30D.
- the insulated cooling liquid can flow out after cooling all the battery modules 30 , and as a result, the insulating cooling liquid can come into direct contact with all the battery cells 31 , so that cooling efficiency can be maximized.
- the battery cell 31 is illustrated as a cylindrical cell, but is not limited thereto, and may be a prismatic cell or a pouch-type cell.
- the plurality of battery cells 31 are arranged in a space partitioned by the cross beam 20 . All battery cells 31 included in the battery module 30 may be in direct contact with the insulating coolant.
- the contact area between the insulating coolant and each battery cell 31 is secured to the maximum, so that the overall cooling efficiency of the battery pack 1 can be improved.
- a heat sink occupying a separate space is not required as a component, so the manufacturing cost of the battery pack 1 is not required. can be reduced, and furthermore, it is possible to achieve miniaturization of the battery pack 1 .
- the cooling area is widened, so that the cooling efficiency of the battery pack 1 can be maximized. have.
- a plurality of battery cells 31 included in the battery module 30 may be disposed at a predetermined distance from each other. For example, it may be arranged in a tiled arrangement.
- the battery cells 31 are arranged at regular intervals, it is structurally simple and the manufacturing convenience of the battery pack 1 is increased.
- the arrangement density of the plurality of battery cells 31 included in the battery module 30 may be arranged to gradually increase or decrease gradually toward a specific direction. . That is, the arrangement shape of the plurality of battery cells 31 may be a gradation shape.
- the arrangement density of the battery cells 31 included in the battery module 30 may be formed to be lower as the distance from the shortest path S among the paths from the inlet to the outlet increases.
- the battery cells 31 are arranged at a relatively high density in the shortest distance path S from the inlet to the outlet to prevent the insulating coolant from flowing smoothly compared to other paths, and the shortest distance path S
- the battery cells 31 By disposing the battery cells 31 at a relatively low density in the region farther from the region, it is possible to prevent the intensive flow of the insulating coolant through the shortest distance path S.
- the insulating coolant does not flow well due to the physical structure.
- the insulating coolant may be, in the present invention, by forming the lowest arrangement density of battery cells 31 in the corner regions 303 and 304 as shown in FIG. 6 , insulate even the corner regions 303 and 304 where inlets and outlets are not located Coolant can flow smoothly.
- FIG. 7 is a perspective view showing an automobile 2 including the battery pack 1 of the present invention.
- a vehicle 2 according to the present invention may include a battery pack 1 according to the present invention.
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (13)
- 절연 냉각액이 유입되고 유출되는 냉각액 유입부 및 냉각액 유출부를 구비하는 팩 케이스;상기 팩 케이스 내부에 배치되며, 상기 절연 냉각액이 통과할 수 있는 공간이 형성되도록 구비되는 크로스 빔; 및복수의 배터리 셀을 포함하며, 상기 크로스 빔에 의해 구획된 공간 내에 각각 배치되는 복수의 배터리 모듈;을 포함하는 배터리 팩.
- 제 1 항에 있어서,상기 팩 케이스는, 상기 냉각액 유입부 및 상기 냉각액 유출부를 제외하고는 기밀된 상태인 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 배터리 모듈 내에 포함된 복수의 배터리 셀은 상기 절연 냉각액과 직접 접촉하는 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 배터리 모듈의 일 측에 위치하는 인렛으로 절연 냉각액이 유입되고, 상기 배터리 모듈을 가로질러 상기 인렛의 반대편에 위치하는 아웃렛으로 절연 냉각액이 유출되는 것을 특징으로 하는 배터리 팩.
- 제 4 항에 있어서,상기 배터리 모듈은 복수의 코너 영역을 포함하고,상기 배터리 모듈의 상기 인렛 및 상기 아웃렛은 각각, 상기 복수의 코너 영역 중 어느 하나에 위치되는 것을 특징으로 하는 배터리 팩.
- 제 4 항에 있어서,특정 배터리 모듈의 아웃렛에서 유출된 절연 냉각액은, 인접한 배터리 모듈의 인렛으로 유입되는 것을 특징으로 하는 배터리 팩.
- 제 4 항에 있어서,상기 팩 케이스의 상기 냉각액 유입부로 유입된 절연 냉각액은, 상기 배터리 팩에 포함된 모든 배터리 모듈을 순차적으로 통과한 뒤, 상기 냉각액 유출부로 유출되는 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 배터리 모듈에 포함된 다수의 배터리 셀은 서로 일정 간격을 두고 배치되는 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 배터리 모듈에 포함된 다수의 배터리 셀의 배치 밀도는, 특정 방향으로 갈수록 점진적으로 증가 또는 점진적으로 감소하는 것을 특징으로 하는 배터리 팩.
- 제 4 항에 있어서,상기 배터리 모듈에 포함된 상기 배터리 셀의 배치 밀도는,상기 인렛에서부터 상기 아웃렛에 이르는 경로 중 최단 거리 경로로부터 거리가 먼 영역일수록 낮게 형성되는 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 크로스 빔은 상기 팩 케이스의 측부 커버와 소정 간격 이간되어 있는 것을 특징으로 하는 배터리 팩.
- 제 1 항에 있어서,상기 크로스 빔은 상기 팩 케이스의 측부 커버와 접해 있고,상기 크로스 빔의 적어도 일부에, 절연 냉각액의 유출입이 가능한 개방부가 형성되어 있는 것을 특징으로 하는 배터리 팩.
- 제 1 항 내지 제 12 항 중 어느 한 항에 기재된 배터리 팩을 포함하는 자동차.
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KR20140015257A (ko) * | 2010-09-02 | 2014-02-06 | 아카솔 게엠베하 | 냉각 모듈의 제조를 위한 방법 및 냉각 모듈 |
JP2016122543A (ja) * | 2014-12-24 | 2016-07-07 | トヨタ自動車株式会社 | 電池冷却装置 |
KR101944053B1 (ko) * | 2016-12-22 | 2019-01-30 | 차이나 유니버시티 오브 마이닝 앤드 테크놀로지 | 상변환 물질/공기 결합형 계층적 배터리 열 관리 시스템 |
KR102061745B1 (ko) * | 2016-04-25 | 2020-01-02 | 주식회사 엘지화학 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
KR20210030071A (ko) * | 2019-09-09 | 2021-03-17 | 삼성에스디아이 주식회사 | 배터리 팩 |
KR20210058807A (ko) | 2018-09-20 | 2021-05-24 | 닛샤 가부시키가이샤 | 전단력을 산출할 수 있는 정전용량 검출장치 |
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- 2022-04-18 EP EP22799020.7A patent/EP4270604A1/en active Pending
- 2022-04-18 WO PCT/KR2022/005523 patent/WO2022234975A1/ko active Application Filing
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KR20140015257A (ko) * | 2010-09-02 | 2014-02-06 | 아카솔 게엠베하 | 냉각 모듈의 제조를 위한 방법 및 냉각 모듈 |
JP2016122543A (ja) * | 2014-12-24 | 2016-07-07 | トヨタ自動車株式会社 | 電池冷却装置 |
KR102061745B1 (ko) * | 2016-04-25 | 2020-01-02 | 주식회사 엘지화학 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
KR101944053B1 (ko) * | 2016-12-22 | 2019-01-30 | 차이나 유니버시티 오브 마이닝 앤드 테크놀로지 | 상변환 물질/공기 결합형 계층적 배터리 열 관리 시스템 |
KR20210058807A (ko) | 2018-09-20 | 2021-05-24 | 닛샤 가부시키가이샤 | 전단력을 산출할 수 있는 정전용량 검출장치 |
KR20210030071A (ko) * | 2019-09-09 | 2021-03-17 | 삼성에스디아이 주식회사 | 배터리 팩 |
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EP4270604A1 (en) | 2023-11-01 |
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