WO2024117522A1 - Battery cell assembly of lithium secondary battery having heat dissipation function - Google Patents

Battery cell assembly of lithium secondary battery having heat dissipation function Download PDF

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Publication number
WO2024117522A1
WO2024117522A1 PCT/KR2023/015585 KR2023015585W WO2024117522A1 WO 2024117522 A1 WO2024117522 A1 WO 2024117522A1 KR 2023015585 W KR2023015585 W KR 2023015585W WO 2024117522 A1 WO2024117522 A1 WO 2024117522A1
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Prior art keywords
battery cell
battery
lithium secondary
secondary battery
border
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PCT/KR2023/015585
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French (fr)
Korean (ko)
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남상현
송대천
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에너테크인터내셔널 주식회사
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Publication of WO2024117522A1 publication Critical patent/WO2024117522A1/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • 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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/591—Covers
    • 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 cell assembly of a lithium secondary battery, and more specifically, to a lithium secondary battery having a heat dissipation function that can quickly release heat that may be generated during charging and discharging of a battery module made by assembling a plurality of battery cells. It relates to the battery cell assembly of a battery.
  • lithium secondary batteries are widely used as an energy source with high energy density and operating voltage and excellent lifespan characteristics. , it is being presented as an alternative method to solve the environmental pollution and global warming problems of existing gasoline and diesel vehicles that use fossil fuels.
  • medium-to-large devices such as electric vehicles and power storage devices use battery modules that electrically connect multiple battery cells.
  • the size and weight of the battery module are directly related to the accommodation space and output of the medium-to-large devices. As it becomes relevant, manufacturers are making efforts to manufacture battery modules that can be miniaturized and lightweight while ensuring high output.
  • Figure 1 is a plan view showing the assembly structure of the battery cell 11 and the border frame 13 in the battery cell assembly 10 of the lithium secondary battery used in the above-mentioned electric vehicle and power storage device, and the border frame 13 is It is made of synthetic resin, an insulating material, and is assembled to surround both sides of the battery cell 11 and both terminal portions 12 of the battery cell 11.
  • the square edge of the border frame 13 has a screw assembly hole 14 into which a fixing screw is fitted to keep the position of the border frame 13 constant when stacking a plurality of battery cells 11 side by side. This is provided.
  • the border frame 13 is installed to surround both sides of the battery cell 11, so that during charging and discharging of the lithium secondary battery, the battery cell 11 The generated heat cannot escape quickly due to the border frame 13, and as a result, the performance of the battery module is reduced and the period of use is shortened due to the high heat generated during charging and discharging of the lithium secondary battery. The situation is in dire need of improvement.
  • the present invention is intended to solve the above-described conventional problems, and its purpose is to improve the structure so that heat generated from the battery cell can quickly escape during charging and discharging of the lithium secondary battery, thereby preventing heat generation from the lithium secondary battery inside the battery module.
  • the aim is to provide a battery cell assembly for a lithium secondary battery that has a heat dissipation function that can improve the performance of the secondary battery and further extend its usage period by minimizing .
  • the present invention includes a rectangular battery cell, a border frame surrounding the side circumference of the battery cell and both terminal parts, and a screw assembly hole into which a fixing screw is fitted into the square corner of the border frame.
  • the border frame includes a double-sided border portion that surrounds and covers terminal portions of both ends of the battery cell, and a side border portion that surrounds and covers one side of the battery cell.
  • the side border portion is formed to be detachable from the border portion of both ends of the border frame, so that it can selectively surround and cover one side or the other side of the battery cell.
  • a lithium secondary battery having a heat dissipation function. There are characteristics of the battery cell assembly.
  • the detachable structure of the side edge portion includes forming first and second detachable protrusions on the upper and lower portions of both connection end surfaces of the side edge portion, and opposing both connection end surfaces of the side edge portion.
  • the battery cell assembly of the lithium secondary battery having a heat dissipation function is characterized by forming first and second removable grooves in which the first and second removable protrusions are respectively inserted into both connection end sections of the border frame.
  • the side border portion surrounding the side of the battery cell is formed to be detachable from the border frame, thereby reducing the heat of the battery cell.
  • the side border on the discharge side can be separated and removed, which has the effect of quickly discharging the heat generated from the battery cell and minimizing heat generation inside the battery module, thereby improving the performance of the secondary battery and further extending its service life. there is.
  • Figure 1 is a plan view showing a conventional battery cell assembly.
  • Figure 2 is a perspective view showing a battery cell assembly according to the present invention.
  • Figure 3 is an exploded perspective view showing a battery cell assembly according to the present invention.
  • Figure 4 is a plan view showing a battery cell and a border frame in a battery cell assembly according to the present invention.
  • Figure 5 is an enlarged view of part A of Figure 4.
  • Figure 6 is an exploded perspective view showing the detachable structure of the border frame and the side edge shown in Figure 5.
  • Figure 7 is a plan view showing another example of assembly of the side edge portion in the battery cell assembly according to the present invention.
  • the battery cell assembly 100 includes a square-shaped battery cell 110. And terminal portions 120 are installed at both ends of the battery cell 110 in the long width direction.
  • the side perimeter of the battery cell 110 and both terminal portions 120 of the battery cell 110 are surrounded and protected by a border frame 130, and the border frame 130 is made of an insulating material, for example, a synthetic resin material. It is provided with a screw assembly hole 131 into which a fixing screw 140 is fitted at the square edge.
  • the border frame 130 includes a double-sided border portion 133 that surrounds and covers the terminal portions 120 on both ends of the battery cell 110, and one side of the battery cell 110. It is provided with one side border portion 132 surrounding the side surface 110a, and the side border portion 132 is formed separately from the border portions 133 on both ends of the border frame 130, and the battery cell 110 The side edge portion 132 is removed from the other side 110b.
  • the heat generated from the battery cell 110 can be quickly discharged through the other side 110b from which the side border 132 has been removed, thereby improving the performance of the secondary battery by minimizing heat generation inside the battery module.
  • the period of use can also be further extended.
  • the one side border portion 132 is capable of selectively covering one side 110a or the other side 110b of the battery cell 110, as shown in FIGS. 4, 5, and 6.
  • the detachable structure of the side border portion 132 forms first and second detachable protrusions 132a and 132b on the upper and lower portions of both connection end surfaces of the side border portion 132, and the side border portion 132
  • the first and second attachment and detachment protrusions 132a and 132b are respectively inserted into the first and second attachment and detachment grooves 133a, respectively, on both connection end surfaces of the both end edges 133, which are opposite to the connection end surfaces of the two end faces. 133b).
  • the side border portion 132 covers one side 110a of the battery cell 110, as shown in FIG. 133), the heat generated in the battery cell 110 can escape to the other side 110b of the battery cell 110, and as shown in FIG. 7, the side edge portion 132 is connected to the battery cell 110. ), when assembled with both end edges 133 of the border frame 130 to cover the other side 110b, the heat generated in the battery cell 110 flows out to one side 110a of the battery cell 110. You can make it go out.
  • the heat generation of the lithium secondary battery inside the battery module can be minimized to improve the performance of the secondary battery and further extend the usage period, so it can be applied to a battery cell assembly of lithium secondary batteries such as electric vehicles.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention provides a battery cell assembly of a lithium secondary battery, having a heat dissipation function, in which the structure is improved so that heat generated from a battery cell can quickly escape during charging and discharging of the lithium secondary battery, thus minimizing the heat generated by the lithium secondary battery inside a battery module and thereby improving the performance of the secondary battery and extending the period of use. The battery cell assembly of a lithium secondary battery, having a heat dissipation function, according to the present invention, comprises a rectangular battery cell and a boundary frame surrounding the lateral circumference and both terminal portions of a battery cell, wherein the boundary frame includes both-ends boundary frame portions that surround and cover the terminal portions on both ends of the battery cell, and one side boundary portion that surrounds and covers one side of the battery cell.

Description

열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체Battery cell assembly of lithium secondary battery with heat dissipation function
본 발명은 리튬 이차전지의 배터리셀 조립체에 관한 것으로, 더욱 상세하게는 다수개의 배터리셀을 조립하여 이루어지는 배터리모듈의 충전 및 방전시 발생할 수 있는 열을 빠르게 방출시킬 수 있는 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체에 관한 것이다.The present invention relates to a battery cell assembly of a lithium secondary battery, and more specifically, to a lithium secondary battery having a heat dissipation function that can quickly release heat that may be generated during charging and discharging of a battery module made by assembling a plurality of battery cells. It relates to the battery cell assembly of a battery.
최근, 전기자동차 및 전력저장장치에 대한 기술 개발과 수요 증가로, 이차전지의 수요 또한 급격히 증가하고 있으며, 그 중에서도 리튬 이차전지는 에너지밀도 및 작동전압이 높고 수명특성이 우수한 에너지원으로 널리 사용되고 있으며, 화석 연료를 사용하는 기존의 가솔린 차량, 디젤 차량 등의 환경오염 및 지구온난화 문제를 해결하기 위한 대체방안으로 제시되고 있다.Recently, with the development of technology and increased demand for electric vehicles and power storage devices, the demand for secondary batteries is also rapidly increasing. Among them, lithium secondary batteries are widely used as an energy source with high energy density and operating voltage and excellent lifespan characteristics. , it is being presented as an alternative method to solve the environmental pollution and global warming problems of existing gasoline and diesel vehicles that use fossil fuels.
전기자동차 및 전력저장장치와 같은 중대형 디바이스에는 고출력과 대용량의 필요성으로 인해 다수개의 배터리셀을 전기적으로 연결한 배터리모듈이 사용되고 있으며, 배터리모듈의 크기와 중량은 해당 중대형 디바이스의 수용공간 및 출력 등과 직접적으로 관련성이 있음에 따라, 제조업체들은 고출력을 담보하면서도 소형화 및 경량화가 가능한 배터리모듈의 제조를 위해 노력하고 있다.Due to the need for high output and large capacity, medium-to-large devices such as electric vehicles and power storage devices use battery modules that electrically connect multiple battery cells. The size and weight of the battery module are directly related to the accommodation space and output of the medium-to-large devices. As it becomes relevant, manufacturers are making efforts to manufacture battery modules that can be miniaturized and lightweight while ensuring high output.
또한 리튬 이차전지의 충전 및 방전 진행시 발생하는 고열에 의한 성능 저하 및 사용 기간 단축에 대한 문제를 최대한 개선할 필요성이 있다. In addition, there is a need to improve as much as possible the problems of performance deterioration and shortening of use period due to high heat that occurs during charging and discharging of lithium secondary batteries.
도 1은 상기한 전기자동차 및 전력저장장치에 사용되는 리튬 이차전지의 배터리셀 조립체(10)에서 배터리셀(11)과 테두리프레임(13)의 조립구조를 나타낸 평면도로서, 테두리프레임(13)은 절연재질인 합성수지로 제조되고, 배터리셀(11)의 양측면과 배터리셀(11)의 양쪽 단자부(12)를 둘러싸도록 조립된다.Figure 1 is a plan view showing the assembly structure of the battery cell 11 and the border frame 13 in the battery cell assembly 10 of the lithium secondary battery used in the above-mentioned electric vehicle and power storage device, and the border frame 13 is It is made of synthetic resin, an insulating material, and is assembled to surround both sides of the battery cell 11 and both terminal portions 12 of the battery cell 11.
또한 테두리프레임(13)의 사각모서리부에는 다수개의 배터리셀(11)을 나란히 배치하여 적층할 때 테두리프레임(13)의 위치를 일정하게 유지하기 위한 고정나사가 끼워맞춤되는 나사조립구멍(14)이 구비된다.In addition, the square edge of the border frame 13 has a screw assembly hole 14 into which a fixing screw is fitted to keep the position of the border frame 13 constant when stacking a plurality of battery cells 11 side by side. This is provided.
그러나, 종래의 리튬 이차전지의 배터리셀 조립체(10)는, 테두리프레임(13)이 배터리셀(11)의 양쪽 측면을 둘러싸도록 설치된 것이므로, 리튬 이차전지의 충전 및 방전시 배터리셀(11)에서 발생하는 열이 테두리프레임(13)에 의해 신속하게 빠져나가지 못하게 되고, 이로 인해 리튬 이차전지의 충전 및 방전 진행시 발생하는 고열에 의해 배터리모듈의 성능을 저하시키고 사용 기간을 단축시키는 문제가 있어 이의 개선이 절실한 실정에 있다.However, in the battery cell assembly 10 of a conventional lithium secondary battery, the border frame 13 is installed to surround both sides of the battery cell 11, so that during charging and discharging of the lithium secondary battery, the battery cell 11 The generated heat cannot escape quickly due to the border frame 13, and as a result, the performance of the battery module is reduced and the period of use is shortened due to the high heat generated during charging and discharging of the lithium secondary battery. The situation is in dire need of improvement.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 그 목적은 리튬 이차전지의 충전 및 방전 진행시 배터리셀에서 발생하는 열이 신속하게 빠져나가게 구조를 개선함으로써 배터리모듈 내부의 리튬 이차전지 발열을 최소화하여 이차전지의 성능을 향상시키고 사용 기간을 더욱 연장시킬 수 있는 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체를 제공하는데 있다.The present invention is intended to solve the above-described conventional problems, and its purpose is to improve the structure so that heat generated from the battery cell can quickly escape during charging and discharging of the lithium secondary battery, thereby preventing heat generation from the lithium secondary battery inside the battery module. The aim is to provide a battery cell assembly for a lithium secondary battery that has a heat dissipation function that can improve the performance of the secondary battery and further extend its usage period by minimizing .
상기의 목적을 달성하기 위하여 본 발명은 사각형상의 배터리셀과, 상기 배터리셀의 측면 둘레와 양쪽 단자부를 둘러싸는 테두리프레임과, 상기 테두리프레임의 사각모서리부에 고정나사가 끼워맞춤되는 나사조립구멍을 구비하는 리튬 이차전지의 배터리셀 조립체에 있어서, 상기 테두리프레임은, 배터리셀의 양단측 단자부를 둘러싸 커버하는 양단면테두리부와, 상기 배터리셀의 일측면을 둘러싸 커버하는 하나의 측면테두리부를 구비한 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체에 특징이 있다. In order to achieve the above object, the present invention includes a rectangular battery cell, a border frame surrounding the side circumference of the battery cell and both terminal parts, and a screw assembly hole into which a fixing screw is fitted into the square corner of the border frame. In the battery cell assembly of the lithium secondary battery, the border frame includes a double-sided border portion that surrounds and covers terminal portions of both ends of the battery cell, and a side border portion that surrounds and covers one side of the battery cell. There is a feature in the battery cell assembly of a lithium secondary battery that has a heat dissipation function.
또한 본 발명에 있어서, 상기 측면테두리부는 테두리프레임의 양단면테두리부에 착탈 가능하게 분리 형성되어 상기 배터리셀의 일측면 또는 타측면을 선택적으로 둘러싸 커버할 수 있도록 된 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체에 특징이 있다.In addition, in the present invention, the side border portion is formed to be detachable from the border portion of both ends of the border frame, so that it can selectively surround and cover one side or the other side of the battery cell. A lithium secondary battery having a heat dissipation function. There are characteristics of the battery cell assembly.
*또한 본 발명에 있어서, 상기 측면테두리부의 착탈구조는, 상기 측면테두리부의 양쪽 연결끝단면 상부와 하부에 제1 및 제2 착탈돌출부를 형성하고, 상기 측면테두리부의 양쪽 연결끝단면과 대향하는 상기 테두리프레임의 양쪽 연결끝단면에는 상기 제1 및 제2 착탈돌출부가 각각 끼워져 위치하는 제1 및 제2 착탈홈부를 형성하여 이루어진 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체에 특징이 있다.*In addition, in the present invention, the detachable structure of the side edge portion includes forming first and second detachable protrusions on the upper and lower portions of both connection end surfaces of the side edge portion, and opposing both connection end surfaces of the side edge portion. The battery cell assembly of the lithium secondary battery having a heat dissipation function is characterized by forming first and second removable grooves in which the first and second removable protrusions are respectively inserted into both connection end sections of the border frame.
상기의 특징적 구성을 가지는 본 발명에 따른 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체에 의하면, 배터리셀의 측면을 둘러싸는 측면테두리부가 테두리프레임으로부터 착탈 가능하게 분리 형성됨에 따라, 배터리셀의 열이 배출되는 쪽의 측면테두리부를 분리 제거할 수 있고, 이로 인해 배터리셀에서 발생하는 열을 신속하게 배출시켜 배터리모듈 내부의 발열을 최소화함으로써 이차전지의 성능을 향상시키고 사용 기간도 더욱 연장시키는 효과가 있다.According to the battery cell assembly of a lithium secondary battery having a heat dissipation function according to the present invention having the above characteristic configuration, the side border portion surrounding the side of the battery cell is formed to be detachable from the border frame, thereby reducing the heat of the battery cell. The side border on the discharge side can be separated and removed, which has the effect of quickly discharging the heat generated from the battery cell and minimizing heat generation inside the battery module, thereby improving the performance of the secondary battery and further extending its service life. there is.
도 1은 종래의 배터리셀 조립체를 나타낸 평면도.Figure 1 is a plan view showing a conventional battery cell assembly.
도 2는 본 발명에 따른 배터리셀 조립체를 나타낸 사시도.Figure 2 is a perspective view showing a battery cell assembly according to the present invention.
도 3은 본 발명에 따른 배터리셀 조립체를 나타낸 분해사시도.Figure 3 is an exploded perspective view showing a battery cell assembly according to the present invention.
도 4는 본 발명에 따른 배터리셀 조립체에서 배터리셀과 테두리프레임을 나타낸 평면도.Figure 4 is a plan view showing a battery cell and a border frame in a battery cell assembly according to the present invention.
도 5는 도 4의 A부 확대도. Figure 5 is an enlarged view of part A of Figure 4.
도 6은 도 5에 나타낸 테두리프레임과 측면테두리부의 착탈구조를 나타낸 분리 사시도.Figure 6 is an exploded perspective view showing the detachable structure of the border frame and the side edge shown in Figure 5.
도 7은 본 발명에 따른 배터리셀 조립체에서 측면테두리부의 다른 조립예를 나타낸 평면도.Figure 7 is a plan view showing another example of assembly of the side edge portion in the battery cell assembly according to the present invention.
이하, 본 발명에 따른 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체를 첨부도면에 의거하여 상세하게 설명한다.Hereinafter, the battery cell assembly of a lithium secondary battery having a heat dissipation function according to the present invention will be described in detail based on the attached drawings.
도 2 및 도 3은 본 발명에 따른 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체를 나타낸 사시도 및 분리사시도로서, 도시된 바와 같이 배터리셀 조립체(100)는 사각형상의 배터리셀(110)을 구비하고, 배터리셀(110)의 장폭방향으로 양끝단부에는 단자부(120)가 설치된다.2 and 3 are a perspective view and an exploded perspective view showing a battery cell assembly of a lithium secondary battery having a heat dissipation function according to the present invention. As shown, the battery cell assembly 100 includes a square-shaped battery cell 110. And terminal portions 120 are installed at both ends of the battery cell 110 in the long width direction.
배터리셀(110)의 측면 둘레와 배터리셀(110)의 양쪽 단자부(120)는 테두리프레임(130)에 의해 둘러 싸여져 보호되는 것으로, 테두리프레임(130)은 절연재질, 예를 들면 합성수지재로 제조되고, 사각모서리부에 고정나사(140)가 끼워맞춤되는 나사조립구멍(131)을 구비하고 있다.The side perimeter of the battery cell 110 and both terminal portions 120 of the battery cell 110 are surrounded and protected by a border frame 130, and the border frame 130 is made of an insulating material, for example, a synthetic resin material. It is provided with a screw assembly hole 131 into which a fixing screw 140 is fitted at the square edge.
또한 본 발명의 배터리셀 조립체(100)에서 테두리프레임(130)은, 배터리셀(110)의 양단측 단자부(120)를 둘러싸 커버하는 양단면테두리부(133)와, 배터리셀(110)의 일측면(110a)을 둘러싸는 하나의 측면테두리부(132)를 구비하고, 측면테두리부(132)는 테두리프레임(130)의 양단면테두리부(133)로부터 분리 형성되어 있으며, 배터리셀(110)의 타측면(110b)에는 측면테두리부(132)가 제거되어 있다.In addition, in the battery cell assembly 100 of the present invention, the border frame 130 includes a double-sided border portion 133 that surrounds and covers the terminal portions 120 on both ends of the battery cell 110, and one side of the battery cell 110. It is provided with one side border portion 132 surrounding the side surface 110a, and the side border portion 132 is formed separately from the border portions 133 on both ends of the border frame 130, and the battery cell 110 The side edge portion 132 is removed from the other side 110b.
따라서 측면테두리부(132)가 제거된 타측면(110b)을 통해 배터리셀(110)에서 발생하는 열을 빠르게 배출시킬 수 있고, 이로 인해 배터리모듈 내부의 발열을 최소화함으로써 이차전지의 성능을 향상시키고 사용 기간도 더욱 연장시킬 수 있다.Therefore, the heat generated from the battery cell 110 can be quickly discharged through the other side 110b from which the side border 132 has been removed, thereby improving the performance of the secondary battery by minimizing heat generation inside the battery module. The period of use can also be further extended.
한편, 상기 하나의 측면테두리부(132)는 배터리셀(110)의 일측면(110a) 또는 타측면(110b)을 선택적으로 커버할 수 있도록 된 것으로, 도 4, 도 5 및 도 6에 도시된 바와 같이 측면테두리부(132)의 착탈구조는, 측면테두리부(132)의 양쪽 연결끝단면 상부와 하부에 제1 및 제2 착탈돌출부(132a,132b)를 형성하고, 측면테두리부(132)의 양쪽 연결끝단면과 대향하는 상기 양단면테두리부(133)의 양쪽 연결끝단면에는 상기 제1 및 제2 착탈돌출부(132a,132b)가 각각 끼워져 위치하는 제1 및 제2 착탈홈부(133a,133b)를 형성하여 이루어진다.Meanwhile, the one side border portion 132 is capable of selectively covering one side 110a or the other side 110b of the battery cell 110, as shown in FIGS. 4, 5, and 6. As shown, the detachable structure of the side border portion 132 forms first and second detachable protrusions 132a and 132b on the upper and lower portions of both connection end surfaces of the side border portion 132, and the side border portion 132 The first and second attachment and detachment protrusions 132a and 132b are respectively inserted into the first and second attachment and detachment grooves 133a, respectively, on both connection end surfaces of the both end edges 133, which are opposite to the connection end surfaces of the two end faces. 133b).
이러한 측면테두리부(132)의 착탈구조에 의하면, 도 4에서와 같이 측면테두리부(132)가 배터리셀(110)의 일측면(110a)을 커버하도록 테두리프레임(130)의 양단면테두리부(133)와 조립하면, 배터리셀(110)에서 발생하는 열을 배터리셀(110)의 타측면(110b)으로 빠져나가게 할 수 있고, 도 7에서와 같이 측면테두리부(132)가 배터리셀(110)의 타측면(110b)을 커버하도록 테두리프레임(130)의 양단면테두리부(133)와 조립하면, 배터리셀(110)에서 발생하는 열을 배터리셀(110)의 일측면(110a)으로 빠져나가게 할 수 있다.According to this detachable structure of the side border portion 132, the side border portion 132 covers one side 110a of the battery cell 110, as shown in FIG. 133), the heat generated in the battery cell 110 can escape to the other side 110b of the battery cell 110, and as shown in FIG. 7, the side edge portion 132 is connected to the battery cell 110. ), when assembled with both end edges 133 of the border frame 130 to cover the other side 110b, the heat generated in the battery cell 110 flows out to one side 110a of the battery cell 110. You can make it go out.
따라서, 다수개의 배터리셀 조립체(100)를 나란히 적층하여 구성되는 배터리모듈이 사용되는 전기자동차 및 전력저장장치의 시스템 조립시 열방출방향에 따라 측면테두리부(132)의 제거위치를 선택할 수 있는 호환성을 가지게 되므로 사용효율을 더욱 높일 수 있다. Therefore, when assembling a system of an electric vehicle and a power storage device using a battery module composed of multiple battery cell assemblies 100 stacked side by side, it is possible to select the removal position of the side edge portion 132 according to the heat dissipation direction. Since it has , usage efficiency can be further increased.
이상과 같이 도면과 명세서에서 최적 실시 예가 개시되었다. 여기서 특정한 용어들이 사용되었으나, 이는 단지 본 발명을 설명하기 위한 목적에서 사용된 것이지 의미 한정이나 특허청구범위에 기재된 본 발명의 범위를 제한하기 위하여 사용된 것은 아니다. 그러므로 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시 예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의해 정해져야 할 것이다.As described above, the optimal embodiment is disclosed in the drawings and specifications. Although specific terms are used here, they are used only for the purpose of describing the present invention and are not used to limit the meaning or limit the scope of the present invention described in the claims. Therefore, those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.
본 발명에 따르면 배터리모듈 내부의 리튬 이차전지 발열을 최소화하여 이차전지의 성능을 향상시키고 사용 기간을 더욱 연장시킬 수 있어서 전기 자동차등의 리튬 이차전지의 배터리셀 조립체에 적용될 수 있다.According to the present invention, the heat generation of the lithium secondary battery inside the battery module can be minimized to improve the performance of the secondary battery and further extend the usage period, so it can be applied to a battery cell assembly of lithium secondary batteries such as electric vehicles.

Claims (1)

  1. 사각형상의 배터리셀과, 상기 배터리셀의 측면 둘레와 배터리셀의 양쪽 단자부를 둘러싸는 테두리프레임을 구비하는 리튬 이차전지의 배터리셀 조립체에 있어서,In the battery cell assembly of a lithium secondary battery comprising a rectangular battery cell and a border frame surrounding a side surface of the battery cell and both terminal portions of the battery cell,
    상기 테두리프레임은, 상기 배터리셀의 양단측 단자부를 둘러싸 커버하는 양단면테두리부와, 상기 배터리셀의 일측면을 둘러싸는 하나의 측면테두리부로 이루어지고,The border frame is composed of a double-sided border portion that surrounds and covers terminal portions on both ends of the battery cell, and a side border portion that surrounds one side of the battery cell,
    상기 측면테두리부는, 상기 테두리프레임의 양단면테두리부에 착탈 가능하게 분리 형성되어 열방출방향에 따라 상기 배터리셀의 일측면 또는 타측면을 선택적으로 둘러싸 커버할 수 있도록 되며, The side border portion is formed to be detachable from both end edges of the border frame so that it can selectively surround and cover one side or the other side of the battery cell depending on the heat dissipation direction,
    상기 측면테두리부의 착탈구조는, 상기 측면테두리부의 양쪽 연결끝단면 상부와 하부에 제1 및 제2 착탈돌출부를 형성하고, 상기 측면테두리부의 양쪽 연결끝단면과 대향하는 상기 테두리프레임의 양쪽 연결끝단면에는 상기 제1 및 제2 착탈돌출부가 각각 끼워져 위치하는 제1 및 제2 착탈홈부를 형성하여 이루어진 것을 특징으로 하는 열방출 기능을 가지는 리튬 이차전지의 배터리셀 조립체.The detachable structure of the side edge portion includes forming first and second detachable protrusions on upper and lower portions of both connection end surfaces of the side border portion, and both connection end sections of the border frame facing the both connection end sections of the side border portion. A battery cell assembly of a lithium secondary battery having a heat dissipation function, characterized in that it is formed by forming first and second removable grooves into which the first and second removable protrusions are respectively inserted.
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102516561B1 (en) * 2022-12-02 2023-04-03 에너테크인터내셔널 주식회사 Battery cell assembly of lithium secondary battery with heat dissipation function

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920210B1 (en) * 2006-02-09 2009-10-05 주식회사 엘지화학 Frame Member for Fabrication of Battery Module
KR20170136046A (en) * 2016-05-30 2017-12-11 주식회사 아모그린텍 Assembly type heat dissipation cartridge and battery pack for electric vehicle using the same
KR20180031402A (en) * 2016-09-20 2018-03-28 주식회사 아모그린텍 Heat dissipation cartridge for battery pack
KR20180127760A (en) * 2017-05-22 2018-11-30 주식회사 엘지화학 Battery module and battery pack including the same
KR20200004187A (en) * 2018-07-03 2020-01-13 주식회사 엘지화학 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack
KR102516561B1 (en) * 2022-12-02 2023-04-03 에너테크인터내셔널 주식회사 Battery cell assembly of lithium secondary battery with heat dissipation function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2850211Y (en) * 2005-10-07 2006-12-20 鸿富锦精密工业（深圳）有限公司 Cell module locking device for electronic apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920210B1 (en) * 2006-02-09 2009-10-05 주식회사 엘지화학 Frame Member for Fabrication of Battery Module
KR20170136046A (en) * 2016-05-30 2017-12-11 주식회사 아모그린텍 Assembly type heat dissipation cartridge and battery pack for electric vehicle using the same
KR20180031402A (en) * 2016-09-20 2018-03-28 주식회사 아모그린텍 Heat dissipation cartridge for battery pack
KR20180127760A (en) * 2017-05-22 2018-11-30 주식회사 엘지화학 Battery module and battery pack including the same
KR20200004187A (en) * 2018-07-03 2020-01-13 주식회사 엘지화학 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack
KR102516561B1 (en) * 2022-12-02 2023-04-03 에너테크인터내셔널 주식회사 Battery cell assembly of lithium secondary battery with heat dissipation function

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