KR20220047495A - Cover plate for high-capacity lithium battery - Google Patents

Cover plate for high-capacity lithium battery Download PDF

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KR20220047495A
KR20220047495A KR1020200156450A KR20200156450A KR20220047495A KR 20220047495 A KR20220047495 A KR 20220047495A KR 1020200156450 A KR1020200156450 A KR 1020200156450A KR 20200156450 A KR20200156450 A KR 20200156450A KR 20220047495 A KR20220047495 A KR 20220047495A
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cover plate
electrode
main body
lithium battery
hole
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KR1020200156450A
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Korean (ko)
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KR102475116B1 (en
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왕웬린
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에스. 지. 주홍 컴퓨터 텔레커뮤니케이션 테크놀로지 씨오., 엘티디.
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/172Arrangements of electric connectors penetrating the casing
    • H01M50/174Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147Lids or covers
    • H01M50/148Lids or covers characterised by their shape
    • H01M50/15Lids or covers characterised by their shape for prismatic or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183Sealing members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183Sealing members
    • H01M50/184Sealing members characterised by their shape or structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183Sealing members
    • H01M50/186Sealing members characterised by the disposition of the sealing members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183Sealing members
    • H01M50/186Sealing members characterised by the disposition of the sealing members
    • H01M50/188Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • H01M50/342Non-re-sealable arrangements
    • H01M50/3425Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30Arrangements for facilitating escape of gases
    • H01M50/394Gas-pervious parts or elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/531Electrode connections inside a battery casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/543Terminals
    • H01M50/552Terminals characterised by their shape
    • H01M50/553Terminals adapted for prismatic, pouch or rectangular cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/584Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588Means 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/584Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593Spacers; Insulating plates
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00Safety devices for primary or secondary batteries
    • H01M2200/20Pressure-sensitive devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The present invention relates to a cover plate for a high-capacity lithium battery. The cover plate for a high-capacity lithium battery includes a cover plate main body formed therein with two electrodes through holes. A positive pressure plate and a negative pressure plate are insulated and connected with a top surface of a cover plate main body. A lower insulation pad is connected with a lower surface of a cover plate main body. A positive connector and a negative connector located at a lower portion of the lower insulation pad are inserted into corresponding electrode through holes to be electrically connected to a positive pressure plate and a negative pressure plate, respectively. The electrode through hole is a cascade through-hole including an upper flange. The positive pressure plate and a negative pressure plate covered by an insulation ring are formed in each through hole and are crushed by sealing gaskets, respectively. An upper flange of the electrode through hole is bent inward and is pushed by an insulation ring to make contact with each other to form a non-weld electrode sealing structure. A structure of the present invention is reasonable. An insulation ring, an electrode pressure plate and a sealing gasket are pushed using a bending inward of an upper flange of an electrode through hole to be stuck closely with a cover plate main body to seal matching. Therefore, no welding work is needed so that an assembly process is simplified, and production efficiency is increased. Even if a temperature of a work environment is extremely changed, a transform reduction and magnification of a sealing matching structure are very small, there is no burst leakage danger, and a safety reliability of a sealing structure is significantly improved.

Description

고용량 리튬 배터리 커버 플레이트{Cover plate for high-capacity lithium battery}High-capacity lithium battery cover plate {Cover plate for high-capacity lithium battery}

본 발명은 리튬 배터리 부품에 관한 것으로, 특히 리튬 배터리의 커버 플레이트에 관한 것이다.The present invention relates to lithium battery components, and more particularly to cover plates of lithium batteries.

고용량 리튬 배터리의 하우징 공간은 최대한 효과적으로 이용되어야 한다. 상응한 부품의 커버 플레이트는 전극 압판, 밀봉 개스킷, 절연링 등 전극 부품을 설계한 후 커버 플레이트 위에 조립하여 하부의 하우징 공간을 적게 차지하도록 할 수 있다. 현재 이러한 종류의 커버 플레이트 위의 전극 부품의 밀봉 구조는 모두 용접 공정 및 고강도 플라스틱 재료를 통하여 구현되기 때문에 조립 프로세스에 대한 요구가 높을 뿐만 아니라 생산이 번거롭고, 또한 작업 환경의 온도 변화가 심할 경우 밀봉 구조가 변형되어 파열되고, 누액이 발생할 위험도 존재하기에 안전 신뢰성도 이상적이지 않다. 또한, 이러한 종류의 커버 플레이트 하단의 하부 절연 패드, 전극 커넥터 등의 연결 조립도 대부분 리벳, 용접 방식을 사용하기 때문에 전체적인 조립이 편리하지 않고 생산 효율에 영향을 준다.The housing space of a high-capacity lithium battery must be used as effectively as possible. The cover plate of the corresponding part can be assembled on the cover plate after designing the electrode parts, such as an electrode platen, sealing gasket, and insulating ring, so as to occupy less space in the lower housing. Currently, the sealing structure of the electrode parts on this type of cover plate is implemented through the welding process and high-strength plastic material, so the demand for the assembly process is high, production is cumbersome, and the sealing structure in case of severe temperature change in the working environment The safety and reliability are not ideal because there is a risk of deformation and rupture and leakage of fluid. In addition, since most of these types of connection assembly of the lower insulating pad and electrode connector at the bottom of the cover plate use rivets and welding methods, the overall assembly is not convenient and affects production efficiency.

본 발명은 종래기술의 미흡에 대하여 합리적인 구조와 신뢰성이 있는 밀봉성을 갖는 고용량 리튬 배터리 커버 플레이트를 제공한다.The present invention provides a high-capacity lithium battery cover plate having a reasonable structure and reliable sealing properties against the deficiencies of the prior art.

본 발명은 두 개의 전극 관통홀이 형성된 커버 플레이트 주체를 포함하고, 정극 압판과 부극 압판이 커버 플레이트 주체의 윗 면에 각각 절연되어 연결되고, 하부 절연 패드는 커버 플레이트 주체의 아래 면에 연결되며, 하부 절연 패드의 하부에 위치한 정극 커넥터와 부극 커넥터는 각각 대응하는 전극 관통홀에 삽입되어 정극 압판과 부극 압판에 전기적으로 접촉하고, 상기 전극 관통홀은 상부 플랜지를 구비한 계단식 관통홀이고, 정극 압판과 부극 압판은 각자의 전극 관통홀에 놓이고 모두 밀봉 개스킷이 깔려 있으며, 정극 압판과 부극 압판의 외주에는 각각 절연링이 씌워져 있고, 전극 관통홀의 상부 플랜지는 안쪽으로 구부러져 절연링을 눌러 접촉하여 무용접 전극 밀봉 구조를 형성한다.The present invention includes a cover plate main body having two electrode through-holes formed therein, the positive electrode platen and the negative electrode platen are respectively insulated and connected to the upper surface of the cover plate main body, and the lower insulating pad is connected to the lower surface of the cover plate main body, The positive electrode connector and the negative electrode connector positioned under the lower insulating pad are respectively inserted into the corresponding electrode through-holes to make electrical contact with the positive electrode platen and the negative electrode platen, and the electrode through-hole is a stepped through-hole having an upper flange, and the positive electrode platen The positive and negative electrode platens are placed in their respective electrode through-holes, and both are covered with sealing gaskets, and the outer periphery of the positive and negative electrode platens are covered with insulating rings, respectively, and the upper flange of the electrode through-holes is bent inward and the insulating ring is pressed to make contact. The welding electrode forms a sealing structure.

나아가, 밀봉 개스킷과 접촉하여 밀봉되는 곳의 정극 압판 또는 부극 압판의 하단면에는 물결무늬의 홈이 형성되어 있고, 밀봉 개스킷과 접촉하여 밀봉되는 곳의 전극 관통홀 표면에도 물결무늬의 홈이 형성되어 있어 밀봉 강화 구조를 형성한다.Furthermore, a wave pattern groove is formed on the bottom surface of the positive electrode platen or negative electrode platen where it is sealed in contact with the sealing gasket, and a wave pattern groove is also formed on the surface of the electrode through hole where it is sealed in contact with the sealing gasket. to form a seal-reinforced structure.

나아가, 커버 플레이트 주체의 하부 표면에는 복수 개의 후크가 설치되고, 하부 절연 패드는 후크를 통하여 커버 플레이트 주체와 밀착 연결된다. 하부 절연 패드의 하부 표면에는 두 쌍의 버클이 설치되고, 정극 커넥터와 부극 커넥터는 모두 대응하는 버클을 통하여 하부 절연 패드의 하부에 연결된다.Furthermore, a plurality of hooks are installed on the lower surface of the cover plate main body, and the lower insulating pad is closely connected to the cover plate main body through the hooks. Two pairs of buckles are provided on the lower surface of the lower insulating pad, and both the positive electrode connector and the negative electrode connector are connected to the lower part of the lower insulating pad through the corresponding buckles.

본 발명은 구조가 합리하고, 전극 관통홀의 상부 플랜지가 안쪽으로 구부러지는 것을 이용하여 절연링, 전극 압판과 밀봉 개스킷 등을 눌러 커버 플레이트 주체에 긴밀히 밀착시켜 밀봉 매칭하도록 함으로써, 어떠한 용접 작업도 필요하지 않아, 조립 공정이 간소화하고, 생산 효율이 증가하며, 작업 환경의 온도 변화가 심할 경우에도 밀봉 매칭 구조의 변형 축소량 및 확대량이 매우 작고, 파열 누액 위험이 없으며, 밀봉 구조의 안전 신뢰성 또한 대폭 향상한다.The present invention has a rational structure and uses the bending of the upper flange of the electrode through-hole inward to press the insulating ring, the electrode platen, and the sealing gasket to closely adhere to the cover plate main body for sealing matching, so no welding work is required. Therefore, the assembly process is simplified, the production efficiency is increased, the amount of deformation reduction and expansion of the sealing matching structure is very small even when the temperature change of the working environment is severe, there is no risk of rupture and leakage, and the safety and reliability of the sealing structure is also greatly improved do.

도 1은 실시예의 주요 개략도이다.
도 2는 실시예의 입체 분해 개략도이다.
도 3은 도 1의 A-A 국부 단면 확대 개략도이다.
도 4는 상부 플랜지가 안쪽으로 구부러지지 않은 상태의 커버 플레이트 주체의 국부 단면 확대 개략도이다.
도 5는 도 4의 평면 개략도이다.
도 6은 도 3 중의 정극 압판의 저면 개략도이다.
도 7은 커버 플레이트 주체 및 하부 절연 패드의 밑부분 방향에서의 입체 개략도이다.
도 8은 도 1의 B-B 단면 확대 개략도이다.
1 is a main schematic diagram of an embodiment;
Fig. 2 is a schematic diagram of stereolysis of Examples.
3 is an enlarged schematic view of a local cross-section AA of FIG. 1 .
Fig. 4 is an enlarged local cross-sectional schematic view of the cover plate main body in a state in which the upper flange is not bent inward;
Fig. 5 is a schematic plan view of Fig. 4;
6 is a schematic bottom view of the positive electrode platen in FIG. 3 .
7 is a three-dimensional schematic view in the direction of the bottom of the cover plate main body and the lower insulating pad.
8 is an enlarged schematic view of a cross-section BB of FIG. 1 .

도 1 내지 도 4에서 도시한 바와 같이, 커버 플레이트 주체(1)에는 두 개의 전극 관통홀(2)이 형성되고, 정극 압판(3)과 부극 압판(4)이 커버 플레이트 주체(1)의 윗 면에 각각 절연되어 연결되고, 하부 절연 패드(5)는 커버 플레이트 주체(1)의 아래 면에 연결되며, 하부 절연 패드(5) 하부에 위치한 정극 커넥터(6)와 부극 커넥터(7)는 각각 대응하는 전극 관통홀(2)에 삽입되어 정극 압판(3)과 부극 압판(4)에 전기적으로 접촉하고, 상기 전극 관통홀(2)은 상부 플랜지(8)를 구비한 계단식 관통홀이고, 정극 압판(3)과 부극 압판(4)은 각자의 전극 관통홀(2)에 놓이고 모두 밀봉 개스킷(9)이 깔려 있으며, 정극 압판(3)과 부극 압판(4)의 외주에는 각각 절연링(10)이 씌워져 있고, 전극 관통홀(2)의 상부 플랜지(8)는 안쪽으로 구부러져 절연링(10)을 눌러 접촉하여 무용접 전극 밀봉 구조를 형성한다.As shown in FIGS. 1 to 4 , two electrode through holes 2 are formed in the cover plate main body 1 , and the positive electrode platen 3 and the negative electrode platen 4 are positioned above the cover plate main body 1 . are respectively insulated and connected to the surface, the lower insulating pad 5 is connected to the lower surface of the cover plate main body 1, and the positive electrode connector 6 and the negative electrode connector 7 located under the lower insulating pad 5 are respectively Inserted into the corresponding electrode through-hole 2 to electrically contact the positive electrode platen 3 and the negative electrode platen 4, the electrode through-hole 2 is a stepped through-hole having an upper flange 8, and the positive electrode The platen 3 and the negative platen 4 are placed in their respective electrode through-holes 2 and are both covered with a sealing gasket 9, and an insulating ring ( 10) is covered, and the upper flange 8 of the electrode through hole 2 is bent inward to press and contact the insulating ring 10 to form a non-welding electrode sealing structure.

본 실시예에서의 도 5와 도 6에서 도시한 바와 같이, 밀봉 개스킷(9)과 접촉하여 밀봉되는 곳의 정극 압판(3) 또는 부극 압판(4)의 하단면에는 물결무늬의 홈(11)이 형성되어 있고, 밀봉 개스킷(9)과 접촉하여 밀봉되는 곳의 전극 관통홀(2) 표면에도 물결무늬의 홈(11)이 형성되어 있어 밀봉 강화 구조를 형성한다. 물결무늬 홈(11)의 존재는 밀봉 개스킷(9) 표면에 더욱 충분하고 신뢰성 있게 접촉하도록 함으로써 밀봉 성능이 더 강화될 수 있다.As shown in FIGS. 5 and 6 in this embodiment, a wave pattern groove 11 is formed on the lower surface of the positive electrode platen 3 or the negative electrode platen 4 where it is sealed in contact with the sealing gasket 9 . is formed, and a wave pattern groove 11 is also formed on the surface of the electrode through-hole 2 where it is sealed in contact with the sealing gasket 9 to form a sealing reinforcement structure. The presence of the corrugated grooves 11 can further enhance the sealing performance by making a more sufficient and reliable contact with the surface of the sealing gasket 9 .

커버 플레이트 제품에서의 정극 커넥터(6)와 부극 커넥터(7)는 각각 정극 압판(3)과 부극 압판(4)에 직접 전기적으로 접촉하기에, 전류가 다른 구조를 통해 흐를 필요가 없고, 내부 저항의 안정성이 강해지며, 리튬 배터리의 과전류 성능이 향상된다. 정극 압판(3), 부극 압판(4) 및 대응하는 절연링(10)의 외형은 일반적으로 다각형 등 비원형으로 설정될 수 있고, 이 경우 회전 방지 구조를 가지게 되기 때문에 사용 신뢰성이 더 높다. 본 실시예는 커버 플레이트 주체(1) 상부, 전극 관통홀(2)의 상부 플랜지(8) 외주에 조임 장식링(14)이 덮어져 있기에 틈새를 차단하여 미관적이고 먼지를 방지한다.Since the positive electrode connector 6 and the negative electrode connector 7 in the cover plate product are in direct electrical contact with the positive electrode platen 3 and the negative electrode platen 4, respectively, there is no need for current to flow through other structures, and the internal resistance The stability of the battery is strengthened, and the overcurrent performance of the lithium battery is improved. The outer shape of the positive electrode platen 3, the negative electrode platen 4, and the corresponding insulating ring 10 may be generally set to a non-circular shape such as a polygon, and in this case, the use reliability is higher because it has a rotation preventing structure. In this embodiment, the upper part of the cover plate main body (1) and the outer periphery of the upper flange (8) of the electrode through hole (2) are covered with the fastening decorative ring (14), so that the gap is blocked to prevent aesthetics and dust.

도 7과 도 8에서 도시한 바와 같이, 커버 플레이트 주체(1)의 하부 표면에는 복수 개의 후크(12)가 설치되고, 하부 절연 패드(5)는 후크(12)를 통하여 커버 플레이트 주체(1)와 밀착 연결된다. 하부 절연 패드(5)의 하부 표면에는 두 쌍의 버클(13)이 설치되고, 정극 커넥터(6)와 부극 커넥터(7)는 모두 대응하는 버클(13)을 통하여 하부 절연 패드(5)의 하부에 연결된다. 이러한 연결 구조는 리벳, 용접이 필요하지 않고 조립 시 전용 작업복이 필요하지 않기에 리튬 배터리 커버 플레이트의 후기 작업 단계의 간편성, 신뢰성을 높이고, 커버 플레이트의 전체적인 조립 효율을 현저하게 높일 수 있다.7 and 8, a plurality of hooks 12 are installed on the lower surface of the cover plate main body 1, and the lower insulating pad 5 is connected to the cover plate main body 1 through the hooks 12. is closely connected with Two pairs of buckles 13 are provided on the lower surface of the lower insulating pad 5, and both the positive electrode connector 6 and the negative electrode connector 7 are connected to the lower surface of the lower insulating pad 5 through the corresponding buckles 13. is connected to This connection structure does not require rivets or welding, and does not require a dedicated work clothes during assembly, so it is possible to increase the simplicity and reliability of the later work stage of the lithium battery cover plate, and to significantly increase the overall assembly efficiency of the cover plate.

또한, 일반적으로 커버 플레이트 주체(1)의 중부에는 방폭 기구(15)가 설치되어 있는 바, 흔히는 방폭막 구조이고, 하부 절연 패드(5)의 중부의 대응 위치에는 복수 개의 통풍구(16)가 형성되는 것이 필요한 바 압력이 너무 높을 때 기체를 통과시킬 수 있다.In addition, in general, an explosion-proof mechanism 15 is installed in the central portion of the cover plate main body 1, which is often an explosion-proof membrane structure, and a plurality of ventilation holes 16 are provided at corresponding positions in the central portion of the lower insulating pad 5 Gases can pass when the pressure is too high as needed to form.

Claims (7)

두 개의 전극 관통홀이 형성된 커버 플레이트 주체를 포함하고, 정극 압판과 부극 압판이 커버 플레이트 주체의 윗 면에 각각 절연되어 연결되고, 하부 절연 패드는 커버 플레이트 주체의 아래 면에 연결되며, 하부 절연 패드 하부에 위치한 정극 커넥터와 부극 커넥터는 각각 대응하는 전극 관통홀에 삽입되어 정극 압판과 부극 압판에 전기적으로 접촉하는 고용량 리튬 배터리 커버 플레이트에 있어서,
상기 전극 관통홀(2)은 상부 플랜지(8)를 구비한 계단식 관통홀이고, 정극 압판(3)과 부극 압판(4)은 각자의 전극 관통홀(2)에 놓이고, 모두 밀봉 개스킷(9)이 깔려 있으며, 정극 압판(3)과 부극 압판(4)의 외주에는 각각 절연링(10)이 씌워져 있고, 전극 관통홀(2)의 상부 플랜지(8)는 안쪽으로 구부러져 절연링(10)을 눌러 접촉하여 무용접 전극 밀봉 구조를 형성하는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
It includes a cover plate main body having two electrode through-holes formed therein, the positive electrode platen and the negative electrode platen are respectively insulated and connected to the upper surface of the cover plate main body, the lower insulating pad is connected to the lower surface of the cover plate main body, and the lower insulating pad In the high-capacity lithium battery cover plate, the positive electrode connector and the negative electrode connector positioned at the bottom are respectively inserted into the corresponding electrode through-holes to make electrical contact with the positive electrode platen and the negative electrode platen,
The electrode through-hole 2 is a stepped through-hole having an upper flange 8, and the positive electrode platen 3 and the negative electrode platen 4 are placed in their respective electrode through-holes 2, both of which are sealed gaskets 9 ) is laid, and an insulating ring 10 is respectively covered on the outer periphery of the positive electrode platen 3 and the negative electrode platen 4, and the upper flange 8 of the electrode through hole 2 is bent inward and the insulating ring 10 is A high-capacity lithium battery cover plate, characterized in that by pressing to form a non-welding electrode sealing structure.
제1항에 있어서,
밀봉 개스킷(9)과 접촉하여 밀봉되는 곳의 정극 압판(3) 또는 부극 압판(4)의 하단면에는 물결무늬의 홈(11)이 형성되어 있고, 밀봉 개스킷(9)과 접촉하여 밀봉되는 곳의 전극 관통홀(2) 표면에도 물결무늬의 홈(11)이 형성되어 있어 밀봉 강화 구조를 형성하는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
The method of claim 1,
A corrugated groove 11 is formed on the bottom surface of the positive electrode platen 3 or the negative platen 4 where it is sealed in contact with the sealing gasket 9 , and is sealed in contact with the sealing gasket 9 . A high-capacity lithium battery cover plate, characterized in that a wave pattern groove (11) is also formed on the surface of the electrode through-hole (2) to form a sealing reinforcement structure.
제1항 또는 제2항에 있어서,
커버 플레이트 주체(1)의 하부 표면에는 복수 개의 후크(12)가 설치되고, 하부 절연 패드(5)는 후크(12)를 통하여 커버 플레이트 주체(1)와 밀착 연결되고, 하부 절연 패드(5)의 하부 표면에는 두 쌍의 버클(13)이 설치되고, 정극 커넥터(6)와 부극 커넥터(7)는 모두 대응하는 버클(13)을 통하여 하부 절연 패드(5)의 하부에 연결되는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
3. The method of claim 1 or 2,
A plurality of hooks 12 are installed on the lower surface of the cover plate main body 1 , and the lower insulating pad 5 is closely connected with the cover plate main body 1 through the hooks 12 , and the lower insulating pad 5 . Two pairs of buckles 13 are installed on the lower surface of A high-capacity lithium battery cover plate.
제1항 또는 제2항에 있어서,
커버 플레이트 주체(1) 상부, 전극 관통홀(2)의 상부 플랜지(8) 외주에 조임 장식링(14)이 덮어져 있는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
3. The method of claim 1 or 2,
A high-capacity lithium battery cover plate, characterized in that the upper flange (8) of the upper part of the cover plate main body (1) and the upper flange (8) of the electrode through hole (2) is covered with a fastening decorative ring (14).
제3항에 있어서,
커버 플레이트 주체(1) 상부, 전극 관통홀(2)의 상부 플랜지(8) 외주에 조임 장식링(14)이 덮어져 있는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
4. The method of claim 3,
A high-capacity lithium battery cover plate, characterized in that the upper flange (8) of the upper part of the cover plate main body (1) and the upper flange (8) of the electrode through hole (2) is covered with a fastening decorative ring (14).
제1항 또는 제2항에 있어서,
커버 플레이트 주체(1)의 중부에는 방폭 기구(15)가 설치되어 있고, 하부 절연 패드(5)의 중부의 대응 위치에는 복수 개의 통풍구(16)가 설치되는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.
3. The method of claim 1 or 2,
A high-capacity lithium battery cover plate, characterized in that an explosion-proof mechanism (15) is installed in the central part of the cover plate main body (1), and a plurality of ventilation holes (16) are installed at corresponding positions of the central part of the lower insulating pad (5).
제3항에 있어서,
커버 플레이트 주체(1)의 중부에는 방폭 기구(15)가 설치되어 있고, 하부 절연 패드(5)의 중부의 대응 위치에는 복수 개의 통풍구(16)가 더 형성되는 것을 특징으로 하는 고용량 리튬 배터리 커버 플레이트.

4. The method of claim 3,
A high-capacity lithium battery cover plate, characterized in that an explosion-proof mechanism 15 is installed in the central portion of the cover plate main body (1), and a plurality of ventilation holes (16) are further formed at corresponding positions of the central portion of the lower insulating pad (5) .

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