WO2024103867A1 - 电池及电子设备 - Google Patents

电池及电子设备 Download PDF

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Publication number
WO2024103867A1
WO2024103867A1 PCT/CN2023/113338 CN2023113338W WO2024103867A1 WO 2024103867 A1 WO2024103867 A1 WO 2024103867A1 CN 2023113338 W CN2023113338 W CN 2023113338W WO 2024103867 A1 WO2024103867 A1 WO 2024103867A1
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WO
WIPO (PCT)
Prior art keywords
connecting member
battery
clamping portion
connecting piece
connector
Prior art date
Application number
PCT/CN2023/113338
Other languages
English (en)
French (fr)
Inventor
杜帅
王永旺
曾玉祥
Original Assignee
珠海冠宇电池股份有限公司
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 珠海冠宇电池股份有限公司 filed Critical 珠海冠宇电池股份有限公司
Publication of WO2024103867A1 publication Critical patent/WO2024103867A1/zh

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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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside 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
    • H01M50/536—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
    • H01M50/543—Terminals
    • 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 the field of new energy, and in particular to a battery and electronic equipment.
  • a battery is a device that converts chemical energy into electrical energy. It is widely used in life. With the development of the battery industry, companies have higher and higher requirements for battery production efficiency and qualification rate.
  • Existing batteries generally include a battery cell, a shell, a first adapter plate and a second adapter plate, wherein the first adapter plate is used to connect to the battery cell electrode, and the second adapter plate is connected between the first adapter plate and the shell, thereby extending the electrode to the outside of the shell for easy use.
  • the present invention provides a battery and an electronic device, which improves the production qualification rate of the battery.
  • the present invention provides the following technical solutions:
  • the present invention provides a battery, comprising a battery cell, a housing assembly and a first connecting assembly, wherein the housing assembly comprises a pole and a housing, the housing has a receiving cavity, and the battery cell is disposed in the receiving cavity;
  • the first connecting component includes a first connecting member and a second connecting member, the first connecting member is connected to the pole ear of the battery cell, the second connecting member is connected to the pole, the first connecting member has a first clamping portion, the second connecting member has a second clamping portion, and the first clamping portion and the second clamping portion are clamped to each other.
  • the first clamping portion is a protruding portion
  • the second clamping portion is a recessed portion
  • the first clamping portion is a recessed portion
  • the second clamping portion is a protruding portion
  • the protruding portion is embedded in the recessed portion
  • the first connecting member includes a first connecting piece connected to the second connecting member and a fourth connecting piece connected to a side of the tab facing away from the battery cell.
  • the first connecting member also includes a second connecting component respectively connected to the first connecting plate and the fourth connecting plate;
  • the second connecting component includes a second connecting plate and a third connecting plate;
  • the second connecting plate is located between the second connecting member and the battery cell; along the first direction, the third connecting plate is located between the pole ear and the second connecting member; the first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate are connected in sequence.
  • the first connecting piece has a protrusion
  • the side wall of the second connecting member has a recess
  • the protrusion protrudes toward one side of the second connecting member.
  • the multiple protrusions are arranged on the first connecting sheet at intervals along the first direction.
  • the cross section of the protrusion is arc-shaped or polygonal.
  • the recessed portion is a through hole or a groove formed on the second connecting member.
  • the number of first connecting components is two, and the two first connecting components are respectively connected to the positive pole tab of the battery cell and the negative pole tab of the battery cell; the second connecting component in the first connecting component connected to the positive pole tab is connected to the pole, and the second connecting component in the first connecting component connected to the negative pole tab is connected to the outer shell.
  • the second connecting member and the second connecting sheet are welded together, and the welding surface between the second connecting member and the second connecting sheet is parallel to the bottom of the shell.
  • the protrusion is a convex column
  • the concave portion is a concave hole
  • the diameter of the convex column minus the diameter of the concave hole is greater than 0.05 mm.
  • the height of the protrusion and the depth of the recess are both 0.5 mm-30 mm.
  • the present invention further provides an electronic device, comprising the battery of any one of the second aspect.
  • the battery provided by the present invention comprises a battery cell, a housing component and a first connecting component, wherein the housing component comprises The pole and the shell, the shell has a receiving cavity, and the battery cell is arranged in the receiving cavity; the first connecting component includes a first connecting member and a second connecting member, the first connecting member is connected to the pole ear of the battery cell, the second connecting member is connected to the pole, the first connecting member has a first clamping part, the second connecting member has a second clamping part, and the first clamping part and the second clamping part are clamped with each other.
  • the battery provided by the present invention is provided with a first clamping part on the first connecting member, and a second clamping part matching the first clamping part is provided on the second connecting member.
  • the first clamping part on the first connecting member can be clamped with the second clamping part on the second connecting member first, which can prevent the first connecting member and the second connecting member from sliding during the welding process, thereby realizing accurate and rapid positioning between the first connecting member and the second connecting member, and improving the production qualification rate and efficiency of the battery.
  • FIG1 is a schematic diagram of the overall structure of a battery provided by an embodiment of the present invention.
  • FIG2 is a schematic diagram of assembling a first connector and a second connector in a battery provided by an embodiment of the present invention
  • FIG3 is a schematic diagram of assembling another first connecting member and a second connecting member in a battery provided by an embodiment of the present invention
  • FIG4 is a side view of FIG3 ;
  • FIG5 is a cross-sectional view taken along line A-A in FIG4.
  • the terms “installed”, “set”, “provided with”, “connected”, and “connected” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components.
  • installed can be a fixed connection, a detachable connection, or an integral structure
  • it can be a mechanical connection or an electrical connection
  • it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components.
  • the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
  • first means two or more.
  • a battery is a device that converts chemical energy into electrical energy. It is widely used in life. With the development of the battery industry, companies have higher and higher requirements for battery production efficiency and qualified rate.
  • Existing batteries generally include a battery cell, a shell, a first adapter and a second adapter, wherein the first adapter is used to connect to the battery cell electrode, and the second adapter is connected between the first adapter and the shell, thereby extending the electrode to the outside of the shell for easy use.
  • first adapter is used to connect to the battery cell electrode
  • the second adapter is connected between the first adapter and the shell, thereby extending the electrode to the outside of the shell for easy use.
  • relative sliding is likely to occur between the two, resulting in a decrease in the accuracy of subsequent welding, an increase in the welding defect rate, and ultimately a decrease in the qualified rate of the battery.
  • the present invention provides a battery, which includes a battery cell, a shell assembly and a first connection assembly, the shell assembly includes a pole and a shell, the shell has a receiving cavity, and the battery cell is arranged in the receiving cavity;
  • the first connection assembly includes a first connector and a second connector, the first connector is connected to the pole ear of the battery cell, the second connector is connected to the pole, the first connector has a first clamping portion, the second connector has a second clamping portion, and the first clamping portion and the second clamping portion are clamped with each other.
  • the battery provided by the present invention is provided with a first clamping portion on the first connector, and a second clamping portion matching the first clamping portion is provided on the second connector.
  • the first clamping portion on the first connector can be clamped with the second clamping portion on the second connector first, which can prevent the first connector and the second connector from sliding during the welding process, thereby realizing accurate and rapid positioning between the first connector and the second connector, and improving the production qualification rate and efficiency of the battery.
  • Fig. 1 is a schematic diagram of the overall structure of a battery provided in an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the assembly of the first connector and the second connector in the battery provided in an embodiment of the present invention
  • Fig. 3 is a schematic diagram of the assembly of another first connector and the second connector in the battery provided in an embodiment of the present invention
  • Fig. 4 is a side view of Fig. 3
  • Fig. 5 is a cross-sectional view at AA in Fig. 4.
  • an embodiment of the present invention provides a battery 100, the battery 100 includes a battery cell 110, a shell assembly 120 and a first connecting assembly 130, the shell assembly 120 includes a pole 121 and a shell 122, the shell 122 has a receiving cavity, and the battery cell 110 is disposed in the receiving cavity; the first connecting assembly 130 includes a first connecting member 131 and a second connecting member 132, the first connecting member 131 and the pole of the battery cell 110 are connected to each other.
  • the ear 111 is connected, the second connecting member 132 is connected to the pole 121, the first connecting member 131 has a first clamping portion 1311, the second connecting member 132 has a second clamping portion 1321, and the first clamping portion 1311 and the second clamping portion 1321 are clamped with each other.
  • the battery cell 110 includes a negative electrode made of a negative electrode material, a positive electrode made of a positive electrode material, and a separator separating the positive and negative electrodes.
  • the battery cell 110 may be arranged in a winding type, a stacked type, etc., which is not specifically limited in this embodiment.
  • the role of the shell 122 is to protect the battery 110.
  • the shell 122 can be made of two parts for easy installation.
  • the material of the shell 122 can be stainless steel, which is strong and corrosion-resistant.
  • the shell 122 can also be made of other materials, which is not specifically limited in this embodiment.
  • the first connector 131 can be welded to the tab 111 of the battery cell 110
  • the second connector 132 can be welded to the first connector 131 , and then connected to the shell assembly through the second connector 132 , so as to electrically lead out the electrode of the battery cell 110 .
  • the number of the first connecting components 130 may be two, and the two first connecting components 130 are respectively connected to the positive pole tab 111 of the battery cell 110 and the negative pole tab 111 of the battery cell 110; the second connecting member 132 in the first connecting component 130 connected to the positive pole tab 111 is connected to the pole 121, and the second connecting member 132 in the first connecting component 130 connected to the negative pole tab 111 is connected to the outer shell 122.
  • the two first connecting components 130 are respectively the first connecting component 130 and the second first connecting component 130.
  • the first connecting component 130 and the second first connecting component 130 both include a pair of first connecting members 131 and a second connecting member 132.
  • the first connecting member 131 in the first connecting component 130 can be connected to the negative pole tab 111 of the battery cell 110, and accordingly, one end of the second connecting member 132 in the first connecting component 130 is connected to the outer shell 122 to connect the battery cell 110.
  • the electrical properties of the negative pole of the battery cell 110 are directed to the outer shell 122, and the entire outer shell 122 is used as the negative pole of the battery 100;
  • the first connector 131 in the second first connecting component 130 can be connected to the positive pole ear 111 of the battery cell 110, and accordingly, one end of the second connector 132 in the second first connecting component 130 is connected to the pole 121 to direct the electrical properties of the positive pole of the battery cell 110 to the pole 121, wherein the pole 121 is insulated from the outer shell 122 to ensure that the positive and negative poles of the battery 100 do not interfere with each other and work normally.
  • the pole 121 is generally made of a material with good conductive properties, such as aluminum, copper, etc., and a pole 121 hole can be opened in the outer shell 122.
  • the pole 121 can be directly integrally formed with the second connector 132.
  • the pole 121 extends from the outer shell 122 through the pole 121 hole to the outer shell 122 to achieve the battery cell 110.
  • the positive electrode is electrically led out of the housing 122 .
  • the second connector 132 connected to the pole 121 can be added as a connecting block, and the second connector 132 connected to the housing 122 can be processed into a connecting piece, and the shape of the connecting piece is similar to a C-shape, which is convenient for subsequent assembly.
  • first connecting member 131 and the second connecting member 132 can be made of materials with good conductivity and ductility, such as copper or aluminum.
  • first connecting member 131 and the second connecting member 132 can also be made of other materials, which is not specifically limited in this embodiment.
  • the battery 100 provided in the embodiment of the present invention is provided with a first clamping portion 1311 on the first connecting member 131, and a second clamping portion 1321 matching the first clamping portion 1311 is provided on the second connecting member 132.
  • first connecting member 131 and the second connecting member 132 are welded, the first clamping portion 1311 on the first connecting member 131 and the second clamping portion 1321 on the second connecting member 132 can be clamped first, which can prevent the first connecting member 131 and the second connecting member 132 from sliding during the welding process, thereby achieving accurate and rapid positioning between the first connecting member 131 and the second connecting member 132, thereby improving the production qualification rate and efficiency of the battery 100.
  • the first clamping portion 1311 may be a protrusion
  • the second clamping portion 1321 may be a recessed portion
  • the first clamping portion 1311 may be a recessed portion
  • the second clamping portion 1321 may be a protrusion
  • the protrusion is embedded in the recessed portion
  • the first connector 131 may include a first connector 1312 connected to the second connector 132 and a fourth connector 1315 connected to a side of the tab 111 facing away from the battery cell 110 .
  • the first connecting member 131 can also include a second connecting component respectively connected to the first connecting piece 1312 and the fourth connecting piece 1315;
  • the second connecting component includes a second connecting piece 1313 and a third connecting piece 1314;
  • the second connecting piece 1313 is located between the second connecting member 132 and the battery cell 110;
  • the third connecting piece 1314 is located between the pole ear 111 and the second connecting member 132;
  • the first connecting piece 1312, the second connecting piece 1313, the third connecting piece 1314, and the fourth connecting piece 1315 are connected in sequence.
  • the first connecting piece 1312 may have a protrusion (first clamping portion 1311 ), and the side wall of the second connecting member 132 may have a recess (second clamping portion 1321 ), and the protrusion protrudes toward one side of the second connecting member 132 .
  • the multiple protrusions on the first connecting member 131 are simultaneously embedded in the corresponding recesses on the second connecting member 132, which can not only prevent the first connecting member 131 from sliding relative to the second connecting member 132, but also further prevent the first connecting member 131 from rotating relative to the second connecting member 132, thereby improving the reliability of welding.
  • the shape of the protrusion can be realized in a variety of ways.
  • the cross section of the protrusion can be processed into an arc shape or a polygon.
  • the cross section of the recessed portion is adapted to the shape of the protrusion.
  • the cross section of the protrusion is circular, which is relatively simple to process. When the cross section of the protrusion is a polygon, it can prevent the first connecting member 131 from sliding relative to the second connecting member 132, and can also prevent the first connecting member 131 from rotating relative to the second connecting member 132.
  • the overall shape of the protrusion can also be processed into a hemispherical shape, and correspondingly, the concave part is also processed into a hemispherical shape.
  • This processing method is relatively simple, and only requires simple stamping on the surfaces of the first connector 131 and the second connector 132 respectively through stamping technology, which saves process steps.
  • the shapes of the protrusion and the concave part are hemispherical, when the first connector 131 and the second connector 132 are abutted and positioned, as long as the protrusion on the first connector 131 partially contacts the concave part on the second connector 132, the protrusion can easily "slide” into the concave part, thereby completing the positioning process of the first connector 131 and the second connector 132.
  • the concave part can be a through hole or a groove formed on the second connector 132.
  • the second connecting member 132 and the second connecting piece 1313 can be welded together, and the welding surface between the second connecting member 132 and the second connecting piece 1313 is parallel to the bottom of the housing 122 .
  • the protruding portion may be a protruding column
  • the recessed portion may be a recessed hole
  • the diameter of the protruding column minus the diameter of the recessed hole is greater than 0.05 mm.
  • the height of the protruding column and the depth of the recessed hole can be set to 0.5 mm-30 mm.
  • the present invention further provides an electronic device, comprising the battery 100 according to any one of the second aspects.
  • the battery 100 provided in the embodiment of the present invention includes a battery cell 110, a shell assembly 120 and a first connecting assembly 130, wherein the shell assembly 120 includes a pole 121 and a shell 122, wherein the shell 122 has a receiving cavity, and the battery cell 110 is disposed in the receiving cavity;
  • the first connecting assembly 130 includes a first connecting member 131 and a second connecting member 132, wherein the first connecting member 131 is connected to the pole ear 111 of the battery cell 110, and the second connecting member 132 is connected to the pole ear 111 of the battery cell 110.
  • the first connector 131 has a first clamping portion 1311
  • the second connector 132 has a second clamping portion 1321.
  • the first clamping portion 1311 and the second clamping portion 1321 are clamped with each other.
  • the battery 100 provided by the embodiment of the present invention is provided with a first clamping portion 1311 on the first connector 131, and a second clamping portion 1321 matching the first clamping portion 1311 is provided on the second connector 132.
  • the first clamping portion 1311 on the first connector 131 and the second clamping portion 1321 on the second connector 132 can be clamped first, so that the first connector 131 and the second connector 132 can be prevented from sliding during the welding process, thereby achieving accurate and rapid positioning between the first connector 131 and the second connector 132, and improving the production qualification rate and efficiency of the battery 100.
  • the present invention also provides an electronic device, which includes a battery 100 in any one of the above embodiments, wherein the battery 100 includes a battery cell 110, a shell assembly 120 and a first connecting assembly 130, the shell assembly 120 includes a pole 121 and a shell 122, the shell 122 has a accommodating cavity, and the battery cell 110 is arranged in the accommodating cavity;
  • the first connecting assembly 130 includes a first connecting member 131 and a second connecting member 132, the first connecting member 131 is connected to the pole ear 111 of the battery cell 110, and the second connecting member 132 is connected to the pole 121, the first connecting member 131 has a first clamping portion 1311, the second connecting member 132 has a second clamping portion 1321, and the first clamping portion 1311 and the second clamping portion 1321 are clamped to each other.
  • the battery 100 provided in the embodiment of the present invention is provided with a first clamping portion 1311 on the first connecting member 131, and a second clamping portion 1321 matching the first clamping portion 1311 is provided on the second connecting member 132.
  • the first clamping portion 1311 on the first connecting member 131 and the second clamping portion 1321 on the second connecting member 132 can be clamped first, so that the first connecting member 131 and the second connecting member 132 can be prevented from sliding during the welding process, thereby achieving accurate and rapid positioning between the first connecting member 131 and the second connecting member 132, improving the production qualification rate and efficiency of the battery 100, and improving the productivity of the battery 100 can make the cost of the battery 100 lower, and improving the qualification rate of the battery 100 can improve the safety and service life of the battery 100. Since the electronic device provided in this embodiment uses the battery 100 in the above embodiment, the cost of the electronic device can be reduced, and the safety and service life of the electronic device can be improved.

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

Abstract

本发明提供一种电池及电子设备。本发明提供的电池包括电芯、外壳组件和第一连接组件，外壳组件包括极柱和外壳，外壳具有容纳腔，电芯设置于容纳腔中；第一连接组件包括第一连接件和第二连接件，第一连接件与电芯的极耳相连，第二连接件与极柱连接，第一连接件具有第一卡接部，第二连接件具有第二卡接部，第一卡接部与第二卡接部相互卡接。本发明提供一种电池及电子设备，提高了电池生产的合格率。

Description

电池及电子设备
本申请要求于2022年11月18日提交中国专利局、申请号为202223078072.7、申请名称为“电池及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及新能源领域，尤其涉及一种电池及电子设备。
背景技术
电池是将化学能转化为电能的一种装置，其在生活中应用极广，随着电池行业的发展，各企业对电池的生产效率和合格率的要求也越来越高。
现有的电池一般包括电芯、外壳、第一转接片和第二转接片，其中，第一转接片用来与电芯电极进行连接，第二转接片连接在第一转接片与外壳之间，从而将电极引伸至外壳的外部，方便利用。
然而，发明人发现，现有技术中，在进行第一转接片与第二转接片的连接时，二者之间易发生相对滑动，导致后续焊接精准度下降，焊接不良率提高，最终使得电池的合格率降低。
发明内容
为了解决背景技术中提到的至少一个问题，本发明提供一种电池及电子设备，提高了电池的生产合格率。
为了实现上述目的，本发明提供如下技术方案：
第一方面，本发明提供一种电池，该电池包括电芯、外壳组件和第一连接组件，外壳组件包括极柱和外壳，外壳具有容纳腔，电芯设置于容纳腔中；
第一连接组件包括第一连接件和第二连接件，第一连接件与电芯的极耳相连，第二连接件与极柱连接，第一连接件具有第一卡接部，第二连接件具有第二卡接部，第一卡接部与第二卡接部相互卡接。
作为一种可选的实施方式，第一卡接部为凸出部，第二卡接部为凹陷部，或者，第一卡接部为凹陷部，第二卡接部为凸出部，凸出部嵌入在凹陷部中。
作为一种可选的实施方式，第一连接件包括有与第二连接件连接的第一连接片、与极耳的背离电芯的一侧相接的第四连接片。
作为一种可选的实施方式，第一连接件还包括分别与第一连接片和第四连接片连接起来的第二连接组件；第二连接组件包括第二连接片和第三连接片；第二连接片位于第二连接件与电芯之间；沿第一方向上，第三连接片位于极耳和第二连接件之间；第一连接片、第二连接片、第三连接片、第四连接片依次相连。
作为一种可选的实施方式，第一连接片上具有凸出部，第二连接件上的侧壁上具有凹陷部，凸出部向第二连接件一侧凸出。
作为一种可选的实施方式，凸出部有多个，多个凸出部沿第一方向间隔设置在第一连接片上。
作为一种可选的实施方式，凸出部的横截面为圆弧形或多边形。
作为一种可选的实施方式，凹陷部为形成于第二连接件上的通孔或者凹槽。
作为一种可选的实施方式，第一连接组件的数量为两个，两个第一连接组件分别和电芯的正极极耳以及电芯的负极极耳连接；连接于正极极耳的第一连接组件中的第二连接件和极柱连接，连接于负极极耳的第一连接组件中的第二连接件和外壳连接。
作为一种可选的实施方式，第二连接件与第二连接片之间焊接在一起，且第二连接件与第二连接片之间的焊接面与外壳的底部平行。
作为一种可选的实施方式，凸出部为凸柱，凹陷部为凹孔，凸柱的直径减去凹孔的直径大于0.05mm。
作为一种可选的实施方式，凸柱的高度和凹孔的深度均为0.5mm-30mm。
第二方面，本发明还提供一种电子设备，该电子设备包括第二方面中任意一项的电池。
本发明提供的电池包括电芯、外壳组件和第一连接组件，外壳组件包括 极柱和外壳，外壳具有容纳腔，电芯设置于容纳腔中；第一连接组件包括第一连接件和第二连接件，第一连接件与电芯的极耳相连，第二连接件与极柱连接，第一连接件具有第一卡接部，第二连接件具有第二卡接部，第一卡接部与第二卡接部相互卡接。本发明提供的电池通过在第一连接件上设置第一卡接部，在第二连接件上设置与第一卡接部相匹配的第二卡接部，在进行第一连接件与第二连接件的焊接操作时，可先将第一连接件上的第一卡接部与第二连接件上的第二卡接部进行卡接，可以防止焊接过程中第一连接件与第二连接件发生滑动，从而实现了第一连接件与第二连接件之间地精准和快速定位，提高了电池的生产合格率和效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作以简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种电池的整体结构示意图；
图2为本发明实施例提供的电池中的第一连接件与第二连接件的装配示意图；
图3为本发明实施例提供的电池中的另一种第一连接件与第二连接件的装配示意图；
图4为图3的侧视图；
图5为图4中的A-A处的剖视图。
附图标记说明：
100-电池；
110-电芯；
111-极耳；
120-外壳组件；
121-极柱；
122-外壳；
130-第一连接组件；
131-第一连接件；
1311-第一卡接部；
1312-第一连接片；
1313-第二连接片；
1314-第三连接片；
1315-第四连接片；
132-第二连接件；
1321-第二卡接部；
X-第一方向。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在申请中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本发明及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本发明中的具体含义。
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
此外，术语“第一”、“第二”等主要是用于区分不同的装置、元件或组成部分(具体的种类和构造可能相同也可能不同)，并非用于表明或暗示所指示装置、元件或组成部分的相对重要性和数量。除非另有说明，“多个”的含义为两个或两个以上。
电池是将化学能转化为电能的一种装置，其在生活中应用极广，随着电池行业的发展，各企业对电池的生产效率和合格率的要求也越来越高。现有的电池一般包括电芯、外壳、第一转接片和第二转接片，其中，第一转接片用来与电芯电极进行连接，第二转接片连接在第一转接片与外壳之间，从而将电极引伸至外壳的外部，方便利用。然而，在进行第一转接片与第二转接片的连接时，二者之间易发生相对滑动，导致后续焊接精准度下降，焊接不良率提高，最终使得电池的合格率降低。
有鉴于此，本发明提供一种电池，该电池包括电芯、外壳组件和第一连接组件，外壳组件包括极柱和外壳，外壳具有容纳腔，电芯设置于容纳腔中；第一连接组件包括第一连接件和第二连接件，第一连接件与电芯的极耳相连，第二连接件与极柱连接，第一连接件具有第一卡接部，第二连接件具有第二卡接部，第一卡接部与第二卡接部相互卡接。本发明提供的电池通过在第一连接件上设置第一卡接部，在第二连接件上设置与第一卡接部相匹配的第二卡接部，在进行第一连接件与第二连接件的焊接操作时，可先将第一连接件上的第一卡接部与第二连接件上的第二卡接部进行卡接，可以防止焊接过程中第一连接件与第二连接件发生滑动，从而实现了第一连接件与第二连接件之间地精准和快速定位，提高了电池的生产合格率和效率。
图1为本发明实施例提供的一种电池的整体结构示意图；图2为本发明实施例提供的电池中的第一连接件与第二连接件的装配示意图；图3为本发明实施例提供的电池中的另一种第一连接件与第二连接件的装配示意图；图4为图3的侧视图；图5为图4中的A-A处的剖视图。可以参考图1至图5，本发明实施例提供一种电池100，该电池100包括电芯110、外壳组件120和第一连接组件130，外壳组件120包括极柱121和外壳122，外壳122具有容纳腔，电芯110设置于容纳腔中；第一连接组件130包括第一连接件131和第二连接件132，第一连接件131与电芯110的极 耳111相连，第二连接件132与极柱121连接，第一连接件131具有第一卡接部1311，第二连接件132具有第二卡接部1321，第一卡接部1311与第二卡接部1321相互卡接。
其中，电芯110包括由负极材料制成的负极、由正极材料制成的正极以及分隔正负极的隔膜，电芯110的设置方式可以是卷芯式、层叠式等，本实施例对比不作具体限定。
需要说明的是，外壳122的作用是将电芯110保护其中，外壳122可以由两部分拼接而成，以方便安装。外壳122的材料可以选用不锈钢材，结实且耐腐蚀，当然，外壳122也可以选用其他的材料，本实施例对此不作具体限制。
其中，第一连接件131可以与电芯110的极耳111焊接在一起，第二连接件132与第一连接件131焊接，再通过第二连接件132与壳体组件进行连接，从而将电芯110的电极电性引出。
具体地，第一连接组件130的数量可以为两个，两个第一连接组件130分别和电芯110的正极极耳111以及电芯110的负极极耳111连接；连接于正极极耳111的第一连接组件130中的第二连接件132和极柱121连接，连接于负极极耳111的第一连接组件130中的第二连接件132和外壳122连接。为了便于理解，此处不妨记两个第一连接组件130分别为第一连接组件130和第二第一连接组件130，可以理解，第一连接组件130和第二第一连接组件130均包括一对第一连接件131和第二连接件132，第一连接组件130中的第一连接件131可以与电芯110的负极极耳111连接，相应地，第一连接组件130中的第二连接件132的一端与外壳122连接，以将电芯110负极的电性引致外壳122上，将整个外壳122作为电池100的负极；第二第一连接组件130中的第一连接件131可以与电芯110的正极极耳111连接，相应地，第二第一连接组件130中的第二连接件132的一端与极柱121连接，以将电芯110正极的电性引致极柱121上，其中，极柱121与外壳122绝缘，以保证电池100正负极互不干扰、正常工作。极柱121一般为导电性能良好的材料，例如铝、铜等，可以在外壳122上开设极柱121孔，极柱121可以直接与第二连接件132一体成型，装配时，极柱121从外壳122内穿过极柱121孔延伸出外壳122，以实现将电芯110 正极的电性引出外壳122。
实施的时候，与极柱121连接的第二连接件132可以加成连接块，与外壳122连接的第二连接件132可以加工成连接片，连接片的形状类似C型，方便后续装配。
上述实施例中，第一连接件131和第二连接件132可选用导电性能和延展性能良好的材料制成，例如铜或者铝，当然，第一连接件131和第二连接件132也可以选用其他材料，本实施例中对此不作具体限制。
本发明实施例提供的电池100通过在第一连接件131上设置第一卡接部1311，在第二连接件132上设置与第一卡接部1311相匹配的第二卡接部1321，在进行第一连接件131与第二连接件132的焊接操作时，可先将第一连接件131上的第一卡接部1311与第二连接件132上的第二卡接部1321进行卡接，可以防止焊接过程中第一连接件131与第二连接件132发生滑动，从而实现了第一连接件131与第二连接件132之间地精准和快速定位，提高了电池100的生产合格率和效率。
上述实施例中，第一卡接部1311可以为凸出部，第二卡接部1321为凹陷部，或者，第一卡接部1311为凹陷部，第二卡接部1321为凸出部，凸出部嵌入在凹陷部中。
上述实施例中，第一连接件131可以包括有与第二连接件132连接的第一连接片1312、与极耳111的背离电芯110的一侧相接的第四连接片1315。
如图3所示，上述实施例中，第一连接件131还可以包括分别与第一连接片1312和第四连接片1315连接起来的第二连接组件；第二连接组件包括第二连接片1313和第三连接片1314；第二连接片1313位于第二连接件132与电芯110之间；沿第一方向X(如图2和图3中所示的X方向)上，第三连接片1314位于极耳111和第二连接件132之间；第一连接片1312、第二连接片1313、第三连接片1314、第四连接片1315依次相连。
上述实施例中，第一连接片1312上可以具有凸出部(第一卡接部1311)，第二连接件132上的侧壁上具有凹陷部(第二卡接部1321)，凸出部向第二连接件132一侧凸出。
上述实施例中，凸出部可以有多个，多个凸出部沿第一方向X间隔设 置在第一连接片1312上。当第一连接件131与第二连接件132进行抵接时，第一连接件131上的多个凸出部同时嵌入第二连接件132上的对应的凹陷部中，不仅能防止第一连接件131相对于第二连接件132发生滑动，也能进一步防止第一连接件131相对于第二连接件132发生相对转动，提高了焊接的可靠性。
其中，凸出部的形状可以由多种实现方式，例如，可以将凸出部的横截面加工成圆弧形或多边形，相应地，凹陷部的横截面和凸出部的形状相适应。凸出部横截面为圆形，加工起来比较简单。凸出部的横截面为多边形时，既能防止第一连接件131相对于第二连接件132发生滑动，也能防止第一连接件131相对于第二连接件132发生相对转动。
凸出部的整体外形也可以加工成半球形，相应地，凹陷部也加工成半球形，此种加工方式比较简单，只需要通过冲压成型技术在分别在第一连接件131和第二连接件132表面简单冲压即可，比较节省工序，而且由于凸出部和凹陷部的外形为半球形，当第一连接件131和第二连接件132进行抵接时定位时，第一连接件131上的凸出部只要与第二连接件132上的凹陷部有部分接触，凸出部便很容易“滑入”凹陷部中，从而完成第一连接件131和第二连接件132的定位过程。具体地，凹陷部可以为形成于第二连接件132上的通孔或者凹槽。
上述实施例中，可使第二连接件132与第二连接片1313之间焊接在一起，且使第二连接件132与第二连接片1313之间的焊接面与外壳122的底部平行。
如图5所示，上述实施例中，凸出部可以为凸柱，凹陷部为凹孔，凸柱的直径减去凹孔的直径大于0.05mm。
实施的时候，可使凸柱的高度和凹孔的深度均为0.5mm-30mm。
第二方面，本发明还提供一种电子设备，该电子设备包括第二方面中任意一项的电池100。
本发明实施例提供的电池100包括电芯110、外壳组件120和第一连接组件130，外壳组件120包括极柱121和外壳122，外壳122具有容纳腔，电芯110设置于容纳腔中；第一连接组件130包括第一连接件131和第二连接件132，第一连接件131与电芯110的极耳111相连，第二连接 件132与极柱121连接，第一连接件131具有第一卡接部1311，第二连接件132具有第二卡接部1321，第一卡接部1311与第二卡接部1321相互卡接。本发明实施例提供的电池100通过在第一连接件131上设置第一卡接部1311，在第二连接件132上设置与第一卡接部1311相匹配的第二卡接部1321，在进行第一连接件131与第二连接件132的焊接操作时，可先将第一连接件131上的第一卡接部1311与第二连接件132上的第二卡接部1321进行卡接，可以防止焊接过程中第一连接件131与第二连接件132发生滑动，从而实现了第一连接件131与第二连接件132之间地精准和快速定位，提高了电池100的生产合格率和效率。
此外，本发明还提供一种电子设备，该电子设备包括上述实施例中的任意一中的电池100，该电池100包括电芯110、外壳组件120和第一连接组件130，外壳组件120包括极柱121和外壳122，外壳122具有容纳腔，电芯110设置于容纳腔中；第一连接组件130包括第一连接件131和第二连接件132，第一连接件131与电芯110的极耳111相连，第二连接件132与极柱121连接，第一连接件131具有第一卡接部1311，第二连接件132具有第二卡接部1321，第一卡接部1311与第二卡接部1321相互卡接。本发明实施例提供的电池100通过在第一连接件131上设置第一卡接部1311，在第二连接件132上设置与第一卡接部1311相匹配的第二卡接部1321，在进行第一连接件131与第二连接件132的焊接操作时，可先将第一连接件131上的第一卡接部1311与第二连接件132上的第二卡接部1321进行卡接，可以防止焊接过程中第一连接件131与第二连接件132发生滑动，从而实现了第一连接件131与第二连接件132之间地精准和快速定位，提高了电池100的生产合格率和效率，电池100的生产率提高可以使得电池100的成本更低，电池100的合格率提高可以使得电池100的安全性和寿命得以提高，由于本实施例提供的电子设备使用了上述实施例中的电池100，因此，该电子设备的成本得以降低，该电子设备的安全性和使用寿命得以提高。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进 行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (13)

  1. 一种电池，其特征在于，包括电芯、外壳组件和第一连接组件，所述外壳组件包括极柱和外壳，所述外壳具有容纳腔，所述电芯设置于所述容纳腔中；
    所述第一连接组件包括第一连接件和第二连接件，所述第一连接件与所述电芯的极耳相连，所述第二连接件与所述极柱连接，所述第一连接件具有第一卡接部，所述第二连接件具有第二卡接部，所述第一卡接部与所述第二卡接部相互卡接。
  2. 根据权利要求1所述的电池，其特征在于，所述第一卡接部为凸出部，所述第二卡接部为凹陷部，或者，所述第一卡接部为凹陷部，所述第二卡接部为凸出部，所述凸出部嵌入在所述凹陷部中。
  3. 根据权利要求2所述的电池，其特征在于，所述第一连接件包括有与所述第二连接件连接的第一连接片、与所述极耳的背离所述电芯的一侧相接的第四连接片。
  4. 根据权利要求3所述的电池，其特征在于，所述第一连接件还包括分别与所述第一连接片和第四连接片连接起来的第二连接组件；所述第二连接组件包括第二连接片和第三连接片；所述第二连接片位于所述第二连接件与所述电芯之间；沿第一方向上，所述第三连接片位于所述极耳和所述第二连接件之间；所述第一连接片、第二连接片、第三连接片、第四连接片依次相连。
  5. 根据权利要求4所述的电池，其特征在于，所述第一连接片上具有所述凸出部，所述第二连接件上的侧壁上具有所述凹陷部，所述凸出部向所述第二连接件一侧凸出。
  6. 根据权利要求5所述的电池，其特征在于，所述凸出部有多个，多个所述凸出部沿所述第一方向间隔设置在所述第一连接片上。
  7. 根据权利要求2-6任意一项所述的电池，其特征在于，所述凸出部的横截面为圆弧形或多边形。
  8. 根据权利要求2-6任意一项所述的电池，其特征在于，所述凹陷部为形成于所述第二连接件上的通孔或者凹槽。
  9. 根据权利要求1-6任意一项所述的电池，其特征在于，所述第一连接组件的数量为两个，两个所述第一连接组件分别和所述电芯的正极极耳以及所述电芯的负极极耳连接；连接于所述正极极耳的所述第一连接组件中的第二连接件和所述极柱连接，连接于所述负极极耳的所述第一连接组件中的第二连接件和所述外壳连接。
  10. 根据权利要求4-6任意一项所述的电池，其特征在于，所述第二连接件与所述第二连接片之间焊接在一起，且所述第二连接件与所述第二连接片之间的焊接面与所述外壳的底部平行。
  11. 根据权利要求2-6任意一项所述的电池，其特征在于，所述凸出部为凸柱，所述凹陷部为凹孔，所述凸柱的直径减去所述凹孔的直径大于0.05mm。
  12. 根据权利要求11所述的电池，其特征在于，所述凸柱的高度和所述凹孔的深度均为0.5mm-30mm。
  13. 一种电子设备，其特征在于，该电子设备包括权利要求1-12任意一项所述的电池。
PCT/CN2023/113338 2022-11-18 2023-08-16 电池及电子设备 WO2024103867A1 (zh)

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