WO2022025483A1 - 전지 팩 및 이의 제조 방법 - Google Patents
전지 팩 및 이의 제조 방법 Download PDFInfo
- Publication number
- WO2022025483A1 WO2022025483A1 PCT/KR2021/008912 KR2021008912W WO2022025483A1 WO 2022025483 A1 WO2022025483 A1 WO 2022025483A1 KR 2021008912 W KR2021008912 W KR 2021008912W WO 2022025483 A1 WO2022025483 A1 WO 2022025483A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery cell
- cell stack
- battery
- conductive resin
- thermally conductive
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000010410 layer Substances 0.000 claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000012790 adhesive layer Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 80
- 238000001816 cooling Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
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- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for 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
- H01M10/04—Construction or manufacture in general
-
- 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
- H01M10/64—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
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
-
- 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 manufacturing method thereof, and more particularly, to a battery pack having improved insulation performance and improved cooling efficiency, and a manufacturing method thereof.
- Secondary batteries are attracting a lot of attention as an energy source for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles, as well as mobile devices such as cell phones, digital cameras, and laptops.
- the battery module may include a module frame for accommodating the battery cell stack in an internal space in order to protect the battery cell stack from external impact, heat, or vibration.
- FIG. 1 is an exploded perspective view showing a conventional battery module.
- a conventional battery module 10 includes a battery cell stack 12 including a plurality of battery cells 11 , a U-shaped frame 30 with an open top, front and rear surfaces, and a battery cell.
- An upper plate 40 covering the upper portion of the stacked body 12 , an end plate 15 positioned on the front and rear surfaces of the battery cell stack 12 , respectively, and between the battery cell stacked body 12 and the end plate 15 .
- a bus bar frame 13 located in
- the battery module 10 includes a thermally conductive resin layer 31 positioned between the U-shaped frame 30 and the battery cell stack 12 .
- the thermally conductive resin layer 31 is a kind of heat dissipation layer, and may be formed by coating a material having a heat dissipation function.
- the cooling surface of the battery cell 11 is in direct contact with the thermal conductive resin layer 31 , and there is a risk of damage. Since the conventionally used thermally conductive resin layer 31 does not guarantee insulation performance, when the battery cell 11 is damaged, there is a problem in that an insulation issue occurs.
- An object of the present invention is to provide a battery pack having improved insulation performance and cooling efficiency, and a method for manufacturing the same.
- a battery pack according to an embodiment of the present invention has a battery cell stack formed by stacking a plurality of battery cells, an adhesive layer applied to a lower surface of the battery cell stack, and a plurality of module regions, wherein the battery cell stack is a lower pack housing to be mounted, and a thermally conductive resin layer positioned between the adhesive layer and the lower pack housing, wherein the adhesive layer has insulation
- the thermally conductive resin layer may directly contact the lower pack housing.
- the plurality of module areas may be partitioned by a plurality of barrier ribs formed in the lower pack housing, and the barrier rib may be positioned between adjacent battery cell stacks among the plurality of battery cell stacks.
- the thermally conductive resin layer includes a first thermally conductive resin layer and a second thermally conductive resin layer, and the plurality of module regions include a first region and a second region partitioned from each other by the partition wall, and the first The thermally conductive resin layer may be formed to correspond to the first region, and the second thermally conductive resin layer may be formed to correspond to the second region.
- the battery pack further includes an insulating cover covering both ends of the battery cell stack, and holding members surrounding both ends of the battery cell stack adjacent to the insulating cover, the battery cell stack, the insulating cover, and the The holding member and the battery module including the adhesive layer may be directly mounted on the lower pack housing.
- the battery pack may further include an upper pack housing covering the plurality of battery cell stacks.
- a battery pack manufacturing method includes the steps of stacking a plurality of battery cells to form a battery cell stack, forming an insulating cover covering both ends of the battery cell stack, the insulating cover forming a holding member surrounding both ends of the battery cell stack adjacent to the battery cell stack, forming an adhesive layer by applying an adhesive material to a lower surface of the battery cell stack, in a lower pack housing having a plurality of module areas Forming a thermally conductive resin layer, and mounting the battery cell stack in the lower pack housing so that a lower surface of the battery cell stack is in contact with the thermal conductive resin layer.
- the forming of the adhesive layer may include spraying an insulating adhesive spray toward a lower surface of the battery cell stack in a state in which the battery cell stack is vertically inverted.
- the plurality of module regions may be partitioned by a plurality of barrier ribs, and the battery cell stack may be mounted between the neighboring barrier ribs.
- the thickness of the adhesive layer may be formed to be thinner than the thickness of the thermally conductive resin layer.
- an insulating adhesive to the bottom surface for cooling of the battery cell stack, it is possible to maintain insulating performance and improve cooling efficiency.
- FIG. 1 is an exploded perspective view showing a conventional battery module.
- FIG. 2 is a perspective view illustrating a battery module according to an embodiment of the present invention.
- FIG. 3 is an exploded perspective view of the battery module of FIG. 2 .
- FIG. 4 is a perspective view of a battery cell included in the battery module of FIG. 2 .
- FIG. 5 and 6 are perspective views illustrating a battery pack and a method of manufacturing the same according to another embodiment of the present invention.
- a part of a layer, film, region, plate, etc. when a part of a layer, film, region, plate, etc. is said to be “on” or “on” another part, it includes not only cases where it is “directly on” another part, but also cases where another part is in between. . Conversely, when we say that a part is “just above” another part, we mean that there is no other part in the middle.
- the reference part means to be located above or below the reference part, and to necessarily mean to be located “on” or “on” in the direction opposite to the gravity no.
- planar it means when the target part is viewed from above, and "cross-sectional” means when viewed from the side when a cross-section of the target part is vertically cut.
- FIG. 2 is a perspective view illustrating a battery module according to an embodiment of the present invention.
- 3 is an exploded perspective view of the battery module of FIG. 2 .
- 4 is a perspective view of a battery cell included in the battery module of FIG. 2 .
- the battery module 100 includes a battery cell stack 200 in which a plurality of battery cells 110 are stacked.
- the battery cell 110 is preferably a pouch-type battery cell, and may be formed in a rectangular sheet-like structure.
- two electrode leads 111 and 112 have one end 114a positioned opposite to each other with respect to the cell body 113 and the other end 114b. Each has a structure protruding from the.
- the electrode leads 111 and 112 are connected to an electrode assembly (not shown) and protrude from the electrode assembly (not shown) to the outside of the battery cell 110 .
- One of the two electrode leads 111 and 112 may be the positive lead 111 , and the other may be the negative lead 112 . That is, the positive lead 111 and the negative lead 112 may protrude in opposite directions with respect to one battery cell 110 .
- both ends 114a and 114b of the cell case 114 and one side 114c connecting them are adhered in a state in which an electrode assembly (not shown) is accommodated in the cell case 114 .
- the battery cell 110 according to the present embodiment has a total of three sealing parts, the sealing part has a structure in which the sealing part is sealed by a method such as thermal fusion, and the other side part may be formed of the connection part 115 .
- the cell case 114 may be formed of a laminate sheet including a resin layer and a metal layer.
- the battery cells 110 may be configured in plurality, and the plurality of battery cells 110 are stacked to be electrically connected to each other to form the battery cell stack 200 .
- a plurality of battery cells 110 may be stacked along the x-axis direction. Accordingly, the electrode leads 111 and 112 may protrude in the y-axis direction and the -y-axis direction, respectively.
- the battery module 100 according to the present embodiment may form a module-less structure in which the module frame and the end plate are removed.
- the battery module 100 according to the present embodiment may include a side plate 600 and a holding band 700 .
- a complicated process requiring precise control such as a process of accommodating the battery cell stack 200 in the module frame or a process of assembling the module frame and the end plate, is unnecessary.
- it has the advantage that the weight of the battery module 100 can be greatly reduced by the removed module frame and end plate.
- the battery module 100 according to the present embodiment has the advantage that reworkability is advantageous during the battery pack assembly process according to the removal of the module frame, but the conventional battery module 10 is defective due to the welding structure of the module frame. Even if this occurs, it can be compared to that rework is impossible.
- the side plate 600 is a plate-shaped member and is positioned on both sides of the battery cell stack 200 to supplement the rigidity of the battery module 100 .
- the side plate 600 has elastic properties and may include a plastic material manufactured by injection molding, and in some cases, a leaf spring material may be applied.
- the holding band 700 is a member surrounding the battery cell stack at both ends of the battery cell stack 200 , and includes a plurality of battery cells 110 and a side plate 600 constituting the battery cell stack 200 . may be responsible for fixing the In this way, after fixing the battery cell stack 200 and the side plate 600 through the holding band 700 , the front and rear surfaces of the battery cell stack 200 corresponding to the direction in which the electrode lead 111 protrudes.
- An insulating cover 400 may be positioned on the .
- the holding band 700 may be made of a material having a predetermined elastic force, and specifically, a structure of a leaf spring may be applied.
- the battery module 100 according to the present embodiment further includes an adhesive layer 120 applied to the lower surface of the battery cell stack 200 .
- the adhesive layer 120 according to the present embodiment may be formed by applying an insulating adhesive material to the lower surface of the battery cell stack 200 to a thin thickness.
- the pressure-sensitive adhesive layer 120 covers the bottom surface of the battery cell stack 200 for cooling the battery cell stack 200 , thereby maintaining the insulating performance of the battery cell stack 200 and cooling the battery cell stack 200 . Efficiency reduction can be minimized.
- the adhesive layer 120 may cover the entire bottom surface of the battery cell stack 200 .
- FIG. 5 and 6 are perspective views illustrating a battery pack and a method of manufacturing the same according to another embodiment of the present invention.
- the insulating adhesive spray 130 may be sprayed toward the lower surface of the battery cell stack 200 in a state in which the battery module 100 described above is vertically inverted.
- the adhesive layer 120 is applied as thinly as possible, thereby minimizing the action of the adhesive layer 120 as a cooling resistance.
- the adhesive layer 120 may be formed to a thickness thinner than a thermally conductive resin layer to be described later.
- the battery pack 1000 includes a battery module 100 including the battery cell stack 200 described above, and a pack frame accommodating the battery module 100 ( 1100 ) and a thermally conductive resin layer 1200 positioned between the battery module 100 and the bottom 1111 of the pack frame 1100 .
- the battery module 100 may include an insulating cover, and instead may form a module-less structure in which the module frame and the end plate are removed. A plurality of such battery modules 100 may be gathered and accommodated in the pack frame 1100 to form the battery pack 1000 .
- the pack frame 1100 may include a lower pack housing 1110 and an upper pack housing 1120 covering the lower pack housing 1110 , and a plurality of batteries are disposed on the bottom 1111 of the lower pack housing 1110 .
- the module 100 may be located.
- the lower pack housing 1110 may have a plurality of module areas, and the plurality of module areas may be partitioned by a plurality of partition walls 1350 formed in the lower pack housing 1110 .
- the partition wall 1350 is formed between adjacent battery modules 100 among the plurality of battery modules 100 .
- the thermally conductive resin layer 1200 includes a first thermally conductive resin layer and a second thermally conductive resin layer adjacent to each other, and the plurality of module regions includes a first region partitioned from each other by a partition wall 1350 and It may include a second region, wherein the first thermally conductive resin layer is formed to correspond to the first region, and the second thermally conductive resin layer is formed to correspond to the second region.
- the first thermally conductive resin layer and the second thermally conductive resin layer may be spaced apart from each other by the partition wall 1350 .
- the thermally conductive resin layer 1200 may be formed by coating a thermally conductive resin on the bottom 1111 of the lower pack housing 1110 .
- the thermally conductive resin may include a thermally conductive adhesive material, and specifically, may include at least one of a silicone material, a urethane material, and an acrylic material.
- the thermally conductive resin may serve to fix the battery module 100 by being in a liquid phase during application, but may be cured after application. In addition, it is possible to prevent overheating of the battery pack 1000 by quickly transferring heat generated from the battery module 100 to the bottom 1111 due to excellent thermal conductivity.
- the battery pack 1000 in the battery module 100 according to the present embodiment, in a module-less structure in which the module frame is removed, a portion of the battery cell 110 may be exposed to the outside. However, it is essential to fix the exposed battery cells 110 for structural safety. Accordingly, the battery pack 1000 according to the present embodiment has a thermal conductive resin layer capable of fixing the battery module 100 , in particular, each battery cell 110 constituting the battery module 100 to the bottom 1111 . By forming 1200, it was attempted to improve structural safety. In addition, by omitting the module frame, it is possible to directly transfer heat generated from the battery cells from the thermal conductive resin layer to the pack frame to increase cooling efficiency. Although not shown, a heat sink structure may be formed on the pack frame.
- the battery module or battery pack according to the present embodiment described above may be applied to various devices. Specifically, it may be applied to transportation means such as electric bicycles, electric vehicles, hybrids, etc., but is not limited thereto, and may be applied to various devices capable of using a secondary battery.
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- Electrochemistry (AREA)
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (10)
- 복수의 전지 셀이 적층되어 형성된 전지 셀 적층체,상기 전지 셀 적층체 하부면에 도포되어 있는 점착층,복수의 모듈 영역을 갖고, 상기 전지 셀 적층체가 장착되는 하부 팩 하우징, 및상기 점착층과 상기 하부 팩 하우징 사이에 위치하는 열전도성 수지층을 포함하고,상기 점착층은 절연성을 갖는 전지 팩.
- 제1항에서,상기 열전도성 수지층은 상기 하부 팩 하우징에 직접 접촉하는 전지 팩.
- 제1항에서,상기 복수의 모듈 영역은 상기 하부 팩 하우징 내에 형성된 복수의 격벽으로 구획되고, 상기 격벽은 상기 복수의 전지 셀 적층체 중 이웃하는 전지 셀 적층체 사이에 위치하는 전지 팩.
- 제3항에서,상기 열전도성 수지층은 제1 열전도성 수지층과 제2 열전도성 수지층을 포함하고,상기 복수의 모듈 영역은 상기 격벽에 의해 서로 구획되는 제1 영역과 제2 영역을 포함하며,상기 제1 열전도성 수지층은 상기 제1 영역에 대응되도록 형성되고, 상기 제2 열전도성 수지층은 상기 제2 영역에 대응되도록 형성되는 전지 팩.
- 제1항에서,상기 전지 셀 적층체의 양 단부를 덮는 절연 커버,상기 절연 커버와 인접한 상기 전지 셀 적층체의 양 단부를 감싸는 홀딩 부재를 더 포함하고,상기 전지 셀 적층체, 상기 절연 커버, 상기 홀딩 부재, 상기 점착층을 포함하는 전지 모듈이 하부 팩 하우징에 직접 장착되어 있는 전지 팩.
- 제1항에서,상기 복수의 전지 셀 적층체를 덮는 상부 팩 하우징을 더 포함하는 전지 팩.
- 복수의 전지 셀을 적층하여 전지 셀 적층체를 형성하는 단계,상기 전지 셀 적층체의 양 단부를 덮는 절연 커버를 형성하는 단계,상기 절연 커버와 인접한 상기 전지 셀 적층체의 양 단부를 감싸는 홀딩 부재를 형성하는 단계,상기 전지 셀 적층체의 하부면에 점착 물질을 도포하여 점착층을 형성하는 단계,복수의 모듈 영역을 갖는 하부 팩 하우징 내에 열전도성 수지층을 형성하는 단계, 및상기 열전도성 수지층에 상기 전지 셀 적층체의 하부면이 맞닿도록 상기 전지 셀 적층체를 상기 하부 팩 하우징 내에 장착하는 단계를 포함하는 전지 팩 제조 방법.
- 제7항에서,상기 점착층을 형성하는 단계는, 상기 전지 셀 적층체를 상하 반전한 상태에서 상기 전지 셀 적층체의 하부면을 향해 절연성 점착 스프레이를 분사하는 단계를 포함하는 전지 팩 제조 방법.
- 제8항에서,상기 복수의 모듈 영역은 복수의 격벽으로 구획되고, 상기 전지 셀 적층체는 서로 이웃하는 상기 격벽 사이에 장착되는 전지 팩 제조 방법.
- 제7항에서,상기 점착층의 두께는 상기 열전도성 수지층의 두께보다 얇도록 형성되는 전지 팩 제조 방법.
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CN202180005547.9A CN114450840B (zh) | 2020-07-29 | 2021-07-12 | 电池组和制造该电池组的方法 |
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