KR102475116B1 - Cover plate for high-capacity lithium battery - Google Patents

Cover plate for high-capacity lithium battery Download PDF

Info

Publication number
KR102475116B1
KR102475116B1 KR1020200156450A KR20200156450A KR102475116B1 KR 102475116 B1 KR102475116 B1 KR 102475116B1 KR 1020200156450 A KR1020200156450 A KR 1020200156450A KR 20200156450 A KR20200156450 A KR 20200156450A KR 102475116 B1 KR102475116 B1 KR 102475116B1
Authority
KR
South Korea
Prior art keywords
cover plate
electrode
main body
lithium battery
negative electrode
Prior art date
Application number
KR1020200156450A
Other languages
Korean (ko)
Other versions
KR20220047495A (en
Inventor
왕웬린
Original Assignee
에스. 지. 주홍 컴퓨터 텔레커뮤니케이션 테크놀로지 씨오., 엘티디.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 에스. 지. 주홍 컴퓨터 텔레커뮤니케이션 테크놀로지 씨오., 엘티디. filed Critical 에스. 지. 주홍 컴퓨터 텔레커뮤니케이션 테크놀로지 씨오., 엘티디.
Publication of KR20220047495A publication Critical patent/KR20220047495A/en
Application granted granted Critical
Publication of KR102475116B1 publication Critical patent/KR102475116B1/en

Links

Images

Classifications

    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183—Sealing members
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/394—Gas-pervious parts or elements
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

본 발명은 고용량 리튬 배터리에 관한 것으로서, 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, 절연링이 씌워진 정극 압판과 부극 압판은 각자의 전극 관통홀에 놓이고 모두 밀봉 개스킷이 깔려 있으며, 전극 관통홀의 상부 플랜지는 안쪽으로 구부러져 절연링을 눌러 접촉하여 무용접 전극 밀봉 구조를 형성한다. 본 발명은 구조가 합리하고, 전극 관통홀의 상부 플랜지가 안쪽으로 구부러짐을 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 relates to a high-capacity lithium battery, which includes a cover plate main body having two electrode penetration holes, a positive electrode plate and a negative electrode plate are insulated and connected to the upper surface of the cover plate main body, and a lower insulating pad is the cover plate main body. connected to the lower surface of the lower insulating pad, the positive electrode connector and the negative electrode connector located below the lower insulating pad are inserted into corresponding electrode through-holes to electrically contact the positive electrode plate and the negative electrode plate, and the electrode through-hole has an upper flange. It is a stepped through-hole, and the positive and negative electrode platens covered with an insulating ring are placed in their respective electrode through-holes, and all are covered with a sealing gasket. form The present invention has a reasonable structure and uses the inward bending of the upper flange of the electrode penetration hole to press the insulation ring, the electrode platen and the sealing gasket to closely adhere to the main body of the cover plate for sealing matching, so no welding operation is required. , the assembly process is simplified, the production efficiency is increased, the amount of deformation 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 bursting or leaking, and the safety reliability of the sealing structure is also greatly 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 a lithium battery component, and more particularly to a cover plate of a lithium battery.

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 efficiently as possible. The cover plate of the corresponding part can be assembled on the cover plate after designing electrode parts such as an electrode platen, a sealing gasket, and an insulating ring so as to occupy less space in the lower housing. Currently, the sealing structure of electrode parts on this kind of cover plate is implemented through welding process and high-strength plastic material, so the assembly process is not only highly demanding, but also cumbersome to produce, and the sealing structure when the temperature change in the working environment is severe. Safety reliability is not ideal as there is a risk of deformation and rupture and leakage. In addition, since most of the connection assembly of the lower insulation pad, electrode connector, etc. at the bottom of this type of cover plate uses a rivet or welding method, 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 performance against the shortcomings 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 penetration holes, a positive electrode platen and a negative electrode platen are insulated and connected to the upper surface of the cover plate body, and a lower insulation pad is connected to the lower surface of the cover plate body, The positive electrode connector and the negative electrode connector located below the lower insulating pad are respectively inserted into the corresponding electrode through-holes to electrically contact the positive electrode plate and the negative electrode plate, the electrode through-hole being a stepped through-hole having an upper flange, and the positive electrode plate The positive and negative electrode plates are placed in their respective electrode through-holes, and both have sealing gaskets. The outer circumferences of the positive and negative electrode plates are covered with insulating rings, respectively. forming a welding electrode 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-patterned groove is formed on the lower surface of the positive electrode platen or the negative electrode platen where it is sealed in contact with the sealing gasket, and a wave-patterned groove is also formed on the surface of the electrode through-hole where it is sealed in contact with the sealing gasket. It forms a sealing reinforcement 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 portion 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 reasonable structure and uses the inward bending of the upper flange of the electrode penetration hole to press the insulation ring, the electrode platen and the sealing gasket to closely adhere to the main body of the cover plate to seal and match, so that no welding operation 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 or leakage, and the safety 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.
2 is a stereoscopic exploded schematic diagram of an embodiment.
FIG. 3 is an enlarged schematic view of a local section AA of FIG. 1 .
Fig. 4 is an enlarged schematic view of a local section of a cover plate main body in a state where the upper flange is not bent inward;
Figure 5 is a top plan schematic view of Figure 4;
Fig. 6 is a schematic bottom view of the positive electrode platen in Fig. 3;
Fig. 7 is a three-dimensional schematic view of the cover plate main body and the lower insulating pad in the bottom direction.
8 is an enlarged schematic diagram of a BB section 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.1 to 4, two electrode through-holes 2 are formed in the cover plate body 1, and the positive electrode plate 3 and the negative electrode plate 4 are positioned above the cover plate body 1. 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 below the lower insulating pad 5 are respectively insulated and connected to each other. It is inserted into the corresponding electrode through hole 2 to electrically contact the positive electrode plate 3 and the negative electrode plate 4, and 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 both have a sealing gasket 9 laid thereon, 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 welding-free 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 wavy pattern groove 11 is formed on the lower surface of the positive electrode plate 3 or the negative electrode plate 4 where it contacts the sealing gasket 9 and is sealed. is formed, and a wavy groove 11 is also formed on the surface of the electrode through-hole 2 where it is sealed by contacting the sealing gasket 9 to form a sealing reinforcement structure. The existence of the corrugated grooves 11 allows more sufficient and reliable contact with the sealing gasket 9 surface, so that the sealing performance can be further enhanced.

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.The positive connector 6 and the negative connector 7 in the cover plate product directly electrically contact the positive electrode plate 3 and the negative electrode plate 4, respectively, so that current does not need to flow through other structures, and internal resistance stability is strengthened, and the overcurrent performance of the lithium battery is improved. The positive electrode plate 3, the negative electrode plate 4, and the corresponding insulating ring 10 may generally have a non-circular shape, such as a polygon, and in this case, use reliability is higher because they have an anti-rotation structure. In this embodiment, since the decorative fastening ring 14 is covered on the outer circumference of the upper flange 8 of the electrode through-hole 2 on the upper part of the cover plate main body 1, it blocks the gap to be aesthetically pleasing and to prevent 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 connects to the cover plate main body 1 through the hooks 12. closely connected with Two pairs of buckles 13 are installed on the lower surface of the lower insulating pad 5, and both the positive electrode connector 6 and the negative electrode connector 7 pass through the corresponding buckles 13 to the lower portion of the lower insulating pad 5. connected to Since such a connection structure does not require rivets or welding, and does not require special work clothes during assembly, the convenience and reliability of the later work stage of the lithium battery cover plate can be increased, and the overall assembly efficiency of the cover plate can be significantly increased.

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 middle of the cover plate main body 1, which is often an explosion-proof structure, and a plurality of vents 16 are provided at corresponding positions in the middle of the lower insulation pad 5. It can pass gas when the pressure is too high as it needs to be formed.

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 penetration holes, a positive electrode platen and a negative electrode platen are insulated and connected to the upper surface of the cover plate body, the lower insulating pad is connected to the lower surface of the cover plate body, and the lower insulating pad In the high-capacity lithium battery cover plate, the positive electrode connector and the negative electrode connector located at the lower portion are inserted into the corresponding electrode through-holes to electrically contact the positive electrode plate and the negative electrode plate,
The electrode through-hole 2 is a stepped through-hole with an upper flange 8, the positive electrode plate 3 and the negative electrode plate 4 are placed in their respective electrode through-holes 2, and both seal gaskets 9 ) is laid, and the outer circumferences of the positive electrode plate 3 and the negative electrode plate 4 are covered with an insulation ring 10, respectively, and the upper flange 8 of the electrode through-hole 2 is bent inward to form an insulation ring 10 A high-capacity lithium battery cover plate characterized by pressing and contacting to form a welding-free 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.According to claim 1,
A moire-shaped groove 11 is formed on the lower surface of the positive electrode plate 3 or the negative electrode plate 4 where it contacts the sealing gasket 9 and seals it in contact with the sealing gasket 9. A high-capacity lithium battery cover plate, characterized in that the wave-patterned grooves 11 are also formed on the surface of the electrode through-holes 2 of the 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.According to claim 1 or 2,
A plurality of hooks 12 are installed on the lower surface of the cover plate main body 1, the lower insulating pad 5 is closely connected to 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, and both the positive electrode connector 6 and the negative electrode connector 7 are connected to the lower portion of the lower insulating pad 5 through the corresponding buckle 13. 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.According to claim 1 or 2,
A high-capacity lithium battery cover plate, characterized in that the upper part of the cover plate main body (1) and the outer circumference of the upper flange (8) of the electrode through-hole (2) are covered with a decorative 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.According to claim 3,
A high-capacity lithium battery cover plate, characterized in that the upper part of the cover plate main body (1) and the outer circumference of the upper flange (8) of the electrode through-hole (2) are covered with a decorative 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.According to claim 1 or 2,
A high-capacity lithium battery cover plate, characterized in that an explosion-proof mechanism 15 is installed in the middle of the cover plate main body 1, and a plurality of vents 16 are installed at corresponding positions in the middle of the lower insulation 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.

According to claim 3,
An explosion-proof mechanism 15 is installed in the middle of the cover plate main body 1, and a plurality of ventilation holes 16 are further formed at corresponding positions in the middle of the lower insulation pad 5. High-capacity lithium battery cover plate, characterized in that .
KR1020200156450A 2020-01-15 2020-11-20 Cover plate for high-capacity lithium battery KR102475116B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010040225.5A CN110931667A (en) 2020-01-15 2020-01-15 High-capacity lithium battery cover plate
CN2020100402255 2020-01-15

Publications (2)

Publication Number Publication Date
KR20220047495A KR20220047495A (en) 2022-04-18
KR102475116B1 true KR102475116B1 (en) 2022-12-07

Family

ID=69854736

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200156450A KR102475116B1 (en) 2020-01-15 2020-11-20 Cover plate for high-capacity lithium battery

Country Status (4)

Country Link
JP (1) JP6987372B2 (en)
KR (1) KR102475116B1 (en)
CN (1) CN110931667A (en)
DE (2) DE202020106526U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111668403A (en) * 2020-07-04 2020-09-15 苏州炬鸿通讯电脑科技有限公司 Limit shoulder height capacity-increasing type lithium battery cover plate
CN114006094A (en) * 2021-10-27 2022-02-01 深圳市乐贝可科技有限公司 Welding-free sealed type battery core cover plate
JP2024014673A (en) * 2022-07-20 2024-02-01 株式会社Ａｅｓｃジャパン Batteries, battery assemblies and electronic equipment
US20240030520A1 (en) * 2022-07-20 2024-01-25 Aesc Japan Ltd. Battery and electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012204013A (en) 2011-03-23 2012-10-22 Toyota Motor Corp Battery and manufacturing method thereof
JP2018098130A (en) 2016-12-16 2018-06-21 株式会社Ｇｓユアサ Power storage element
US20190280257A1 (en) 2018-03-09 2019-09-12 Contemporary Amperex Technology Co., Limited Top cap assembly of a secondary battery, and secondary battery
CN209993628U (en) 2019-05-30 2020-01-24 中兴高能技术有限责任公司 Battery stop frame, cover plate assembly and battery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400578B1 (en) * 2010-06-25 2013-04-03 Samsung SDI Co., Ltd. Secondary Battery
KR101233535B1 (en) * 2011-02-18 2013-02-14 로베르트 보쉬 게엠베하 Secondary battery
DE112015005767T5 (en) * 2014-12-26 2017-10-05 Gs Yuasa International Ltd. Energy storage device
CN109659454B (en) * 2017-10-10 2020-11-10 宁德时代新能源科技股份有限公司 Secondary cell's top cap subassembly and secondary cell
CN209804723U (en) * 2019-04-30 2019-12-17 宁德时代新能源科技股份有限公司 top cap assembly and secondary battery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012204013A (en) 2011-03-23 2012-10-22 Toyota Motor Corp Battery and manufacturing method thereof
JP2018098130A (en) 2016-12-16 2018-06-21 株式会社Ｇｓユアサ Power storage element
US20190280257A1 (en) 2018-03-09 2019-09-12 Contemporary Amperex Technology Co., Limited Top cap assembly of a secondary battery, and secondary battery
CN209993628U (en) 2019-05-30 2020-01-24 中兴高能技术有限责任公司 Battery stop frame, cover plate assembly and battery

Also Published As

Publication number Publication date
DE202020106526U1 (en) 2020-12-03
DE102020130027A1 (en) 2021-07-15
JP2021111621A (en) 2021-08-02
KR20220047495A (en) 2022-04-18
CN110931667A (en) 2020-03-27
JP6987372B2 (en) 2021-12-22

Similar Documents

Publication Publication Date Title
KR102475116B1 (en) Cover plate for high-capacity lithium battery
JP4032270B2 (en) Cylinder head gasket
EP2405516B1 (en) Polymer electrolyte type fuel cell gasket
US5981098A (en) Fluid flow plate for decreased density of fuel cell assembly
CA2657575C (en) Module for a fuel cell arrangement
US20070042255A1 (en) Seal for fuel cell
CN111193045B (en) Fuel cell
GR3032567T3 (en) Electrochemical converter having optimal pressure distribution
KR20090112699A (en) Membrane electrode assembly
EP1320136A4 (en) Coin-shaped battery
CN108461775A (en) A kind of high temperature proton exchange film fuel cell metal composite gasket and application
CN104798238A (en) Fuel cell stack
CN109465336B (en) Combined stamping die for metal flow field plate of proton exchange membrane fuel cell
CN111668403A (en) Limit shoulder height capacity-increasing type lithium battery cover plate
US20190393530A1 (en) Bonding dies for fuel cell
CN211017139U (en) High-capacity lithium battery cover plate
KR20200088154A (en) Top cap for secondary battery, secondary battery and method of manufacturing the secondary battery
CN212323090U (en) Cap for cylindrical battery
CN212380480U (en) Limit shoulder height capacity-increasing type lithium battery cover plate
CN220439784U (en) Battery pack box, battery pack and electric automobile
CN213879776U (en) Quartz resonator structure
CN218818126U (en) High-vacuum reusable sealing gasket
CN218299994U (en) High-capacity sodium ion battery cover plate
CN218242049U (en) Button type combined battery
JP6148956B2 (en) Manufacturing method of laminate

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right