WO2025031296A1 - 极耳贴胶结构、电池模组及电池包 - Google Patents

极耳贴胶结构、电池模组及电池包 Download PDF

Info

Publication number
WO2025031296A1
WO2025031296A1 PCT/CN2024/109569 CN2024109569W WO2025031296A1 WO 2025031296 A1 WO2025031296 A1 WO 2025031296A1 CN 2024109569 W CN2024109569 W CN 2024109569W WO 2025031296 A1 WO2025031296 A1 WO 2025031296A1
Authority
WO
WIPO (PCT)
Prior art keywords
tab
film
core package
preset distance
adhesive
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/109569
Other languages
English (en)
French (fr)
Inventor
龚利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eve Power Co Ltd
Original Assignee
Eve Power Co Ltd
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 Eve Power Co Ltd filed Critical Eve Power Co Ltd
Priority to EP24850941.6A priority Critical patent/EP4589757A4/en
Publication of WO2025031296A1 publication Critical patent/WO2025031296A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • 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
    • H01M50/595—Tapes
    • 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 application relates to the field of battery manufacturing technology, for example, to a tab adhesive structure, a battery module and a battery pack.
  • a tab adhesive structure comprising:
  • a core package structure wherein a pole ear structure is arranged on the core package structure
  • a connecting piece, along the first direction, the connecting piece is located below the pole ear structure, and the connecting piece is welded to the pole ear structure;
  • the film is adhered to the core package structure and the pole ear structure, and the film is located on the side away from the connecting piece.
  • the present application provides a battery module, which includes a top cover assembly and the above-mentioned pole ear glue structure, and a pole is arranged on the top cover assembly, and a connecting piece is welded to the pole.
  • the present application provides a battery pack, which includes a shell and the above battery module, and the battery module is arranged in the shell.
  • the present application provides a lug adhesive structure, which includes a core package structure, a lug structure, a film and a connecting piece.
  • a lug structure is provided on the core package structure, and along the first direction, the connecting piece is located below the lug structure, and the connecting piece is welded and connected to the lug structure.
  • the film is pasted on the core package structure and the lug structure, and the film is located on the side away from the connecting piece. In the present application, the film is only pasted on the outside of the lug structure.
  • the pulling force of the film on the lug structure can be avoided during the core assembly process, thereby protecting the integrity of the lug structure (positive and negative lugs), avoiding the occurrence of tearing and damage, and then avoiding the increase of the internal resistance of the battery cell after the core assembly, improving the yield of the battery product, and saving costs.
  • the present application also provides a battery module, which has low cost and can reduce the risk of tearing and damage of the positive and negative pole ears.
  • the present application also provides a battery pack, which has low cost, can reduce the risk of tearing and damage of the positive and negative pole ears, and improve product yield.
  • FIG1 is a top view of a tab adhesive structure provided by a possible implementation of the present application.
  • FIG. 2 is a side view of a tab adhesive structure provided by a possible implementation of the present application.
  • first core package 100, first core package; 110, positive electrode ear; 200, second core package; 210, negative electrode ear; 300, connecting piece; 400, first film; 500, second film.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements.
  • a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them.
  • a first feature being “above”, “above” and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or indicates that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or indicates that the first feature is lower in level than the second feature.
  • the terms “upper”, “lower”, “left”, “right” and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as a limitation of the present application.
  • the terms “first” and “second” are used to distinguish in the description and have no special meaning.
  • this embodiment provides a tab adhesive structure, which mainly includes a core package structure, a tab structure, a film and a connecting sheet.
  • the tab structure is provided on the core package structure, and along the first direction, the connecting sheet 300 is located below the tab structure, and the connecting sheet 300 is welded and connected to the tab structure.
  • the film is attached to the core package structure and the tab structure, and the film is located on the side away from the connecting sheet 300.
  • the first direction in this embodiment is the X-axis direction in Figure 2.
  • the core package structure in this embodiment includes a first core package 100 and a second core package 200.
  • the tab structure includes a positive tab 110 and a negative tab 210
  • the film includes a first film 400 and a second film 500.
  • one of the positive tab 110 and the negative tab 210 is provided on the first core package 100
  • the other of the negative tab 210 and the positive tab 110 is provided on the second core package 200.
  • the connecting sheet 300 is located below the positive tab 110 and the negative tab 210, and the connecting sheet 300 is welded to both the positive tab 110 and the negative tab 210.
  • the film includes a first film 400 and a second film 500, the first film 400 is pasted on the first core package 100 and the positive electrode ear 110, and the second film 500 is pasted on the second core package 200 and the negative electrode ear 210; or, the first film 400 is pasted on the first core package 100 and the negative electrode ear 210, and the second film 500 is pasted on the second core package 200 and the positive electrode ear 110; and along the first direction, the film is located on the side away from the connecting sheet 300.
  • the first core package 100 and the second core package 200 can be set to multiple, and the first core package 100 and the second core package 200 correspond to each other one by one.
  • the first core package 100 and the second core package 200 are both set to 1, 2, 3, etc.
  • the positive electrode ear 110 or the negative electrode ear 210 can be set on the first core package 100.
  • the positive electrode ear 110 or the negative electrode ear 210 can also be set on the second core package 200. This embodiment is described by taking the example that the positive electrode ear 110 is set on the first core package 100 and the negative electrode ear 210 is set on the second core package 200.
  • the first film 400 is pasted on the first core package 100 and the positive electrode ear 110
  • the second film 500 is pasted on the second core package 200 and the negative electrode ear 210
  • the first film 400 and the second film 500 are pasted on the same side.
  • the film is only pasted on the outside of the positive electrode ear 110 and the negative electrode ear 210.
  • the film can be prevented from pulling the positive electrode ear 110 and the negative electrode ear 210 during the core closing process, thereby protecting the integrity of the positive electrode ear 110 and the negative electrode ear 210, avoiding the phenomenon of tearing and damage, and then avoiding the situation where the internal resistance of the battery cell increases after the core closing, improving the yield of the battery product, and saving costs.
  • the core closing direction of the first core package 100 and the second core package 200 is the W direction in Figure 2.
  • the outer side of the positive electrode ear 110 and the negative electrode ear 210 mentioned here refers to the side of the positive electrode ear 110 and the negative electrode ear 210 away from the connecting sheet 300 along the X direction in FIG. 2.
  • the inner side of the positive electrode ear 110 and the negative electrode ear 210 refers to the side of the positive electrode ear 110 and the negative electrode ear 210 close to the connecting sheet 300 along the X direction in FIG. 2.
  • a positive electrode ear 110 is provided on the first core package 100, and a negative electrode ear 210 is provided on the second core package 200; the first end of the first film 400 protruding from the positive electrode ear 110 is a first preset distance A, the first end of the second film 500 protruding from the negative electrode ear 210 is a second preset distance B, the second end of the first film 400 protruding from the positive electrode ear 110 is a third preset distance C, and the second end of the second film 500 protruding from the negative electrode ear 210 is a fourth preset distance D.
  • the first film 400 and the second film 500 can completely cover the positive electrode ear 110 and the negative electrode ear 210, thereby improving the insulation protection effect on the positive electrode ear 110 and the negative electrode ear 210.
  • the first film 400 and the second film 500 can play a certain role in fixing the metal scraps generated during the welding process, thereby avoiding the risk of the metal scraps falling into the core package and causing the internal resistance of the battery cell to increase.
  • the first preset distance A and the second preset distance B are the same, and the first preset distance A and the second preset distance B are both set to 5mm-10mm.
  • the first preset distance A and the second preset distance B are both set to values such as 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.
  • the third preset distance C and the fourth preset distance D are the same, and the third preset distance C and the fourth preset distance D are both set to 10mm-20mm.
  • the third preset distance C and the fourth preset distance D are both set to values such as 10mm, 15mm, 20mm, etc.
  • the width of the first film 400 is greater than the width of the positive electrode tab 110
  • the width of the second film 500 is greater than the width of the negative electrode tab 210.
  • the Y direction is the width direction of the first film 400, the positive electrode tab 100, the second film 500 and the negative electrode tab 210.
  • the sizes of the first film 400 and the second film 500 can both be set to 43 mm*45 mm.
  • the connecting piece 300 is ultrasonically welded to the positive electrode tab 110 and the negative electrode tab 210 to improve the stability and reliability of welding between the connecting piece 300 and the positive electrode tab 110 and the negative electrode tab 210.
  • other welding methods may also be used, such as butterfly welding.
  • the first film 400 and the second film 500 are both polyimide glue, namely PI (Polyimide) glue, which improves the insulation, high temperature resistance, voltage resistance and radiation protection performance of the first film 400 and the second film 500.
  • PI Polyimide
  • This embodiment also provides a battery module, which includes a top cover assembly and the above-mentioned pole ear glue structure, a pole is provided on the top cover assembly, and a connecting piece 300 is welded to the pole.
  • the connecting piece 300 and the pole are welded by laser welding.
  • the battery module has low cost and can reduce the risk of tearing and damage of the positive pole ear 110 and the negative pole ear 210.
  • This embodiment also provides a battery pack, which includes a housing and the above battery module, wherein the battery module is arranged in the housing.
  • the battery pack has low cost, can reduce the risk of tearing and damage of the positive electrode ear 110 and the negative electrode ear 210, and improve product yield.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种极耳贴胶结构、电池模组及电池包。该极耳贴胶结构包括芯包结构、极耳结构、胶片和连接片（300）。其中，芯包结构上设置有极耳结构，沿第一方向，连接片（300）位于极耳结构的下方，且连接片（300）与极耳结构焊接连接。胶片粘贴在芯包结构和极耳结构上，且胶片位于远离连接片（300）的一侧。该极耳贴胶结构能够减少极耳破损的风险，提高产品良率，节约成本。

Description

极耳贴胶结构、电池模组及电池包
本申请要求在2023年8月8日提交中国专利局、申请号为202322114483.5的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池制造技术领域，例如涉及一种极耳贴胶结构、电池模组及电池包。
背景技术
目前，在卷芯电池的装配工序中，通常需要将正极耳和负极耳通过连接片焊接在一起，从而有利于芯包内的电流导通。
技术问题
相关技术中，当正极耳和负极耳均与连接片完成焊接工艺后，在焊接结构的两侧均进行贴胶工艺，这样使得在芯包翻折进行合芯工艺时，内侧的胶片会对正极耳和负极耳产生一定的拉扯力，从而容易造成正极耳和负极耳的撕裂破损，导致电芯内阻升高，降低电池产品良率，增加成本。
技术解决方案
第一方面，本申请提供一种极耳贴胶结构，包括：
芯包结构，芯包结构上设置有极耳结构；
连接片，沿第一方向，连接片位于极耳结构的下方，且连接片与极耳结构焊接连接；
胶片，胶片粘贴在芯包结构和极耳结构上，且胶片位于远离连接片的一侧。
第二方面，本申请提供一种电池模组，电池模组包括顶盖组件和以上的极耳贴胶结构，顶盖组件上设置有极柱，连接片与极柱焊接连接。
第三方面，本申请提供一种电池包，电池包包括壳体和以上的电池模组，电池模组设置在壳体内。
有益效果
本申请提供一种极耳贴胶结构，该极耳贴胶结构包括芯包结构、极耳结构、胶片和连接片。其中，芯包结构上设置有极耳结构，沿第一方向，连接片位于极耳结构的下方，且连接片与极耳结构焊接连接。胶片粘贴在芯包结构和极耳结构上，且胶片位于远离连接片的一侧。在本申请中，只在极耳结构的外侧粘贴胶片，由于极耳结构的内侧均没有胶片，这样使得在合芯的过程中，能够避免胶片对极耳结构的拉扯力，从而能够保护极耳结构（正极耳和负极耳）的完整性，避免发生撕裂破损的现象，进而避免发生合芯后电芯内阻升高的情况，提高电池产品良率，节约成本。
本申请还提供一种电池模组，该电池模组成本低，能够降低正极耳和负极耳撕裂破损的风险。
本申请还提供一种电池包，该电池包成本低，能够降低正极耳和负极耳撕裂破损的风险，提高产品良率。
附图说明
图1为本申请可能的实现方式所提供的极耳贴胶结构的俯视图；
图2为本申请可能的实现方式所提供的极耳贴胶结构的侧视图。
附图标记：
100、第一芯包；110、正极耳；200、第二芯包；210、负极耳；300、连接片；400、第一胶片；500、第二胶片。
本发明的实施方式
为使本申请采用的技术方案和达到的技术效果更加清楚，下面结合附图并通过具体实施方式来进一步说明本申请的技术方案。
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“左”、“右”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”用于在描述上加以区分，并没有特殊的含义。
在相关技术中，由于正极耳和负极耳的内侧也均粘贴有胶片，即，胶片的一端粘贴在连接片上，另一端粘贴在正极耳或负极耳上，但是由于贴胶机在实际贴胶的过程中，容易在正极耳与连接片之间，或者是负极耳与连接片直接形成一定的间隙，这样导致在合芯的过程中胶片就会对正极耳和负极耳产生一定的拉扯力，从而导致正极耳或负极发生撕裂破损的现象，影响电池的正常使用，增加成本。
如图1-图2所示，本实施例提供一种极耳贴胶结构，该极耳贴胶结构主要包括芯包结构、极耳结构、胶片和连接片。其中，芯包结构上设置有极耳结构，沿第一方向，连接片300位于极耳结构的下方，且连接片300与极耳结构焊接连接。胶片粘贴在芯包结构和极耳结构上，且胶片位于远离连接片300的一侧。本实施例中的第一方向即为图2中的X轴方向。
例如，本实施例中的芯包结构包括第一芯包100和第二芯包200。极耳结构包括正极耳110和负极耳210，胶片包括第一胶片400和第二胶片500。其中，第一芯包100上设置有正极耳110和负极耳210中的一者，第二芯包200上设置有负极耳210和正极耳110中的另一者。沿第一方向（即图2中的X轴方向），连接片300位于正极耳110和负极耳210的下方，连接片300与正极耳110和负极耳210均焊接连接。胶片包括第一胶片400和第二胶片500，第一胶片400粘贴在第一芯包100和正极耳110上，第二胶片500粘贴在第二芯包200和负极耳210上；或，第一胶片400粘贴在第一芯包100和负极耳210上，第二胶片500粘贴在第二芯包200和正极耳110上；且沿第一方向，胶片位于远离连接片300的一侧。
基于以上设计，在本实施例中，第一芯包100和第二芯包200可以设置为多个，且第一芯包100和第二芯包200一一对应，例如，第一芯包100和第二芯包200均设置为1个、2个、3个等数量。在第一芯包100上可以设置正极耳110或负极耳210，同理，在第二芯包200上也可以设置正极耳110或负极耳210。本实施例以第一芯包100上设置有正极耳110，第二芯包200上设置有负极耳210为例进行说明。第一胶片400粘贴在第一芯包100和正极耳110上，第二胶片500粘贴在第二芯包200和负极耳210上，且第一胶片400和第二胶片500均粘贴在同侧，本实施例只在正极耳110和负极耳210的外侧粘贴胶片，由于正极耳110和负极耳210的内侧均没有胶片，这样使得在合芯的过程中，能够避免胶片对正极耳110和负极耳210的拉扯，从而能够保护正极耳110和负极耳210的完整性，避免发生撕裂破损的现象，进而避免发生合芯后电芯内阻升高的情况，提高电池产品良率，节约成本。需要指出的是，第一芯包100和第二芯包200的合芯方向即为图2中的W方向。需要说明的是，这里所说的正极耳110和负极耳210的外侧指的是图2中沿X方向，正极耳110和负极耳210远离连接片300的一侧。正极耳110和负极耳210的内侧指的是图2中沿X方向，正极耳110和负极耳210靠近连接片300的一侧。
如图1所示，在本实施例中，第一芯包100上设置有正极耳110，第二芯包200上设置有负极耳210；第一胶片400凸出正极耳110的第一端为第一预设距离A，第二胶片500凸出负极耳210的第一端为第二预设距离B，第一胶片400凸出正极耳110的第二端为第三预设距离C，第二胶片500凸出负极耳210的第二端为第四预设距离D。从而使得第一胶片400和第二胶片500均能够完全覆盖正极耳110和负极耳210，提高对正极耳110和负极耳210的绝缘保护作用。同时，第一胶片400和第二胶片500能够对焊接过程中产生的金属屑起到一定的固定作用，避免金属屑掉落至芯包内引起电芯内阻增大的风险。
示例性地，第一预设距离A和第二预设距离B相同，第一预设距离A和第二预设距离B均设置为5mm-10mm。例如，第一预设距离A和第二预设距离B均设置为5mm、6mm、7mm、8mm、9mm、10mm等数值。第三预设距离C和第四预设距离D相同，第三预设距离C和第四预设距离D均设置为10mm-20mm。例如，第三预设距离C和第四预设距离D均设置10mm、15mm、20mm等数值。
例如，本实施例中的第一胶片400的宽度大于正极耳110的宽度，第二胶片500的宽度大于负极耳210的宽度。如图1所示，其中的Y方向为第一胶片400，正极耳100，第二胶片500和负极耳210的宽度方向。
例如，在本实施例中，第一胶片400和第二胶片500的尺寸均可以设置为43mm*45mm。
例如，在本实施例中，连接片300与正极耳110和负极耳210均超声焊接连接，提高连接片300与正极耳110和负极耳210焊接的稳定性和可靠性。当然，还可以采用其他焊接方式，例如，蝴蝶焊等焊接方式。
例如，第一胶片400和第二胶片500均为聚酰亚胺胶，即PI（Polyimide）胶。提高第一胶片400和第二胶片500的绝缘性、耐高温、耐电压和防辐射的性能。
本实施例还提供一种电池模组，该电池模组包括顶盖组件和以上极耳贴胶结构，顶盖组件上设置有极柱，连接片300与极柱焊接连接，示例性地，连接片300与极柱采用激光焊的焊接方式。该电池模组成本低，能够降低正极耳110和负极耳210撕裂破损的风险。
本实施例还提供一种电池包，该电池包包括壳体和以上电池模组，电池模组设置在壳体内。该电池包成本低，能够降低正极耳110和负极耳210撕裂破损的风险，提高产品良率。
注意，在本说明书的描述中，参考术语“有些实施例”、“其他实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。

Claims (10)

  1. 极耳贴胶结构，包括：
    芯包结构，所述芯包结构上设置有极耳结构；
    连接片（300），沿第一方向，所述连接片（300）位于所述极耳结构的下方，且所述连接片（300）与所述极耳结构焊接连接；
    胶片，所述胶片粘贴在所述芯包结构和所述极耳结构上，且所述胶片位于远离所述连接片（300）的一侧。
  2. 根据权利要求1所述的极耳贴胶结构，其中，所述芯包结构包括第一芯包（100）和第二芯包（200），所述极耳结构包括正极耳（110）和负极耳（210），所述胶片包括第一胶片（400）和第二胶片（500）；
    所述第一芯包（100）上设置有所述正极耳（110），所述第二芯包（200）上设置有所述负极耳（210），所述第一胶片（400）粘贴在所述第一芯包（100）和所述正极耳（110）上，所述第二胶片（500）粘贴在所述第二芯包（200）和所述负极耳（210）上；
    或，所述第一芯包（100）上设置有所述负极耳（210），所述第二芯包（200）上设置有所述正极耳（110），所述第一胶片（400）粘贴在所述第一芯包（100）和所述负极耳（210）上，所述第二胶片（500）粘贴在所述第二芯包（200）和所述正极耳（110）上。
  3. 根据权利要求2所述的极耳贴胶结构，其中，所述第一芯包（100）上设置有正极耳（110），所述第二芯包（200）上设置有负极耳（210）；所述第一胶片（400）凸出所述正极耳（110）的第一端为第一预设距离，所述第二胶片（500）凸出所述负极耳（210）的第一端为第二预设距离。
  4. 根据权利要求3所述的极耳贴胶结构，其中，所述第一预设距离和所述第二预设距离相同，所述第一预设距离和所述第二预设距离分别设置为5mm-10mm。
  5. 根据权利要求3所述的极耳贴胶结构，其中，所述第一胶片（400）凸出所述正极耳（110）的第二端为第三预设距离，所述第二胶片（500）凸出所述负极耳（210）的第二端为第四预设距离。
  6. 根据权利要求5所述的极耳贴胶结构，其中，所述第三预设距离和所述第四预设距离相同，所述第三预设距离和所述第四预设距离分别设置为10mm-20mm。
  7. 根据权利要求3所述的极耳贴胶结构，其中，所述第一胶片（400）的宽度大于所述正极耳（110）的宽度，所述第二胶片（500）的宽度大于所述负极耳（210）的宽度。
  8. 根据权利要求2-7中任一项所述的极耳贴胶结构，其中，所述第一胶片（400）和所述第二胶片（500）分别为聚酰亚胺胶。
  9. 电池模组，包括顶盖组件和权利要求1-8中任一项所述的极耳贴胶结构，所述顶盖组件上设置有极柱，连接片（300）与所述极柱焊接连接。
  10. 电池包，包括壳体和权利要求9中的电池模组，所述电池模组设置在所述壳体内。
PCT/CN2024/109569 2023-08-08 2024-08-02 极耳贴胶结构、电池模组及电池包 Pending WO2025031296A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP24850941.6A EP4589757A4 (en) 2023-08-08 2024-08-02 ADHESIVE TAB STRUCTURE, BATTERY MODULE AND BATTERY BLOCK

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202322114483.5U CN220604923U (zh) 2023-08-08 2023-08-08 极耳贴胶结构、电池模组及电池包
CN202322114483.5 2023-08-08

Publications (1)

Publication Number Publication Date
WO2025031296A1 true WO2025031296A1 (zh) 2025-02-13

Family

ID=90181520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/109569 Pending WO2025031296A1 (zh) 2023-08-08 2024-08-02 极耳贴胶结构、电池模组及电池包

Country Status (3)

Country Link
EP (1) EP4589757A4 (zh)
CN (1) CN220604923U (zh)
WO (1) WO2025031296A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN220604923U (zh) * 2023-08-08 2024-03-15 湖北亿纬动力有限公司 极耳贴胶结构、电池模组及电池包
CN118943505B (zh) * 2024-10-09 2025-01-21 蜂巢能源科技股份有限公司 锂电池及锂电池装配工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109687011A (zh) * 2018-12-25 2019-04-26 湖北金泉新材料有限责任公司 一种叠片锂离子电池及其制作方法
CN114156527A (zh) * 2021-12-03 2022-03-08 合肥国轩高科动力能源有限公司 一种锂电池结构及其装配方法
CN114204105A (zh) * 2021-11-10 2022-03-18 安徽南都华拓新能源科技有限公司 一种软包新型叠片锂离子电池
CN114284550A (zh) * 2021-12-28 2022-04-05 蜂巢能源科技股份有限公司 锂离子电池的装配方法、锂离子电池
WO2023071065A1 (zh) * 2021-10-29 2023-05-04 蜂巢能源科技股份有限公司 一种锂离子电池装配工艺及锂离子电池
CN220604923U (zh) * 2023-08-08 2024-03-15 湖北亿纬动力有限公司 极耳贴胶结构、电池模组及电池包

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017010042A1 (ja) * 2015-07-10 2017-01-19 パナソニックＩｐマネジメント株式会社 捲回型電池
CN206250261U (zh) * 2016-12-02 2017-06-13 宁德时代新能源科技股份有限公司 二次电池
CN213601987U (zh) * 2020-10-21 2021-07-02 厦门海辰新能源科技有限公司 一种电芯组件及电池
CN116648814A (zh) * 2021-09-29 2023-08-25 宁德时代新能源科技股份有限公司 电池单体、电池、用电设备及电池单体的制造方法和设备
CN216354646U (zh) * 2021-11-30 2022-04-19 宁德时代新能源科技股份有限公司 动力电池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109687011A (zh) * 2018-12-25 2019-04-26 湖北金泉新材料有限责任公司 一种叠片锂离子电池及其制作方法
WO2023071065A1 (zh) * 2021-10-29 2023-05-04 蜂巢能源科技股份有限公司 一种锂离子电池装配工艺及锂离子电池
CN114204105A (zh) * 2021-11-10 2022-03-18 安徽南都华拓新能源科技有限公司 一种软包新型叠片锂离子电池
CN114156527A (zh) * 2021-12-03 2022-03-08 合肥国轩高科动力能源有限公司 一种锂电池结构及其装配方法
CN114284550A (zh) * 2021-12-28 2022-04-05 蜂巢能源科技股份有限公司 锂离子电池的装配方法、锂离子电池
CN220604923U (zh) * 2023-08-08 2024-03-15 湖北亿纬动力有限公司 极耳贴胶结构、电池模组及电池包

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4589757A4

Also Published As

Publication number Publication date
CN220604923U (zh) 2024-03-15
EP4589757A4 (en) 2026-04-08
EP4589757A1 (en) 2025-07-23

Similar Documents

Publication Publication Date Title
CN111403789B (zh) 电极组件及电池
WO2023088434A1 (zh) 极片和电池
WO2022199435A1 (zh) 卷芯和软包电池
WO2021232314A1 (zh) 电极组件和电池
CN209401760U (zh) 二次电池及其极耳组件
CN220604923U (zh) 极耳贴胶结构、电池模组及电池包
CN110581250A (zh) 全极耳结构、软包电芯、软包电池
CN205429100U (zh) 锂离子电芯
WO2025001811A1 (zh) 电极组件及电池单体
CN100590909C (zh) 一种卷绕型电池
CN114678665A (zh) 一种电芯的焊接方法及焊接夹具
CN219759847U (zh) 一种电池及电池组
CN115528384A (zh) 电池、电池模组与用电设备
CN219226552U (zh) 一种极耳焊接结构、极耳中置电芯及电池
CN219086203U (zh) 一种电池及电池组
CN220830004U (zh) 卷绕式芯包
CN209747629U (zh) 复合极耳组件、软包动力电池和车辆
WO2024120551A1 (zh) 极片及电芯
CN209487648U (zh) 一种叠片锂离子电池结构
CN219203450U (zh) 一种电极组件及锂离子电池
CN217719889U (zh) 一种电池
CN115133184B (zh) 电芯、电池及用电设备
CN218274996U (zh) 一种软包电池
CN211907481U (zh) 高强度软包电池和电池模组
CN216958435U (zh) 一种正极耳结构及软包电池

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24850941

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2024850941

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2024850941

Country of ref document: EP

Effective date: 20250414

WWP Wipo information: published in national office

Ref document number: 2024850941

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE