WO2026001041A1 - 一种电池及电池包 - Google Patents

一种电池及电池包

Info

Publication number
WO2026001041A1
WO2026001041A1 PCT/CN2025/079316 CN2025079316W WO2026001041A1 WO 2026001041 A1 WO2026001041 A1 WO 2026001041A1 CN 2025079316 W CN2025079316 W CN 2025079316W WO 2026001041 A1 WO2026001041 A1 WO 2026001041A1
Authority
WO
WIPO (PCT)
Prior art keywords
protrusion
limiting
groove
top cover
post
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/CN2025/079316
Other languages
English (en)
French (fr)
Inventor
张猛
杨伟
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.)
Sunwoda Mobility Energy Technology Co Ltd
Original Assignee
Sunwoda Mobility Energy Technology 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 Sunwoda Mobility Energy Technology Co Ltd filed Critical Sunwoda Mobility Energy Technology Co Ltd
Publication of WO2026001041A1 publication Critical patent/WO2026001041A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • 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
    • 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

  • This application belongs to the field of battery technology, specifically relating to a battery and a battery pack.
  • terminals are typically connected to the battery top cover using a riveting process.
  • the terminals need to connect to various conductive components.
  • batteries are used in applications such as automobiles, they are often under vibration, and the terminals need to withstand circumferential torsional forces. There is a risk that the terminals may detach from the battery top cover. Therefore, the torsional resistance of the terminal assembly structure directly affects the battery manufacturing yield and usage safety.
  • This application provides a battery to solve the above-mentioned technical problems; another purpose of this application is to provide a battery pack using the above-mentioned battery.
  • a battery according to an embodiment of this application the battery having a first orientation, the battery comprising:
  • a housing having a receiving cavity and an opening communicating with the receiving cavity
  • An electrode assembly disposed in the receiving cavity
  • a top cover sheet the top cover sheet covering the opening, the top cover sheet having an electrode post hole, the electrode post hole penetrating the top cover sheet in the first direction;
  • a terminal post wherein the terminal post portion passes through the terminal post hole and the terminal post is connected to the electrode assembly;
  • a first limiting member is located on the side of the top cover plate facing the electrode assembly.
  • the first limiting member includes a first limiting part and a second limiting part.
  • the second limiting part surrounds the first limiting part and is connected to the top cover plate and surrounds the electrode post.
  • the first limiting part and the top cover plate form a limiting groove in the first direction, and a portion of the electrode post is embedded in the limiting groove.
  • a first insulating element a portion of which passes through the electrode hole and surrounds the electrode, and at least a portion of which abuts between the top cover plate and the electrode;
  • the top cover and the first insulating member are provided with a first protrusion and the other is provided with a first groove for the first protrusion to be inserted into.
  • the pole and the first insulating member are provided with a second protrusion and the other is provided with a second groove for the second protrusion to be inserted into.
  • the first protrusion and the second protrusion are respectively disposed on the first insulating member, the first groove is disposed on the top cover plate, and the second groove is disposed on the pole post.
  • the first protrusion, the second protrusion, the first groove and the second groove are provided in multiples, and each of the first protrusions is embedded in a first groove and each of the second protrusions is embedded in a second groove.
  • a plurality of the first protrusions are spaced apart around the pole post;
  • a plurality of the second protrusions are spaced apart around the pole post.
  • the electrode post includes a first post portion, a second post portion, and a third post portion disposed in a first direction, wherein the first post portion is located on the side of the third post portion opposite to the electrode assembly, and the second post portion is at least partially located within the limiting groove;
  • the first insulating member includes a first insulating portion surrounding the first pillar portion, the first insulating portion abutting against the first pillar portion and the top cover plate, and the first protrusion and the second protrusion are respectively disposed on the first insulating portion.
  • the first insulating member further includes a second insulating portion connected to the side of the first insulating portion away from the first column portion, the second insulating portion being at least partially disposed within the limiting groove, and the second insulating portion abutting against the second column portion and the top cover plate.
  • the top cover plate has an annular groove on the side facing the electrode assembly, the annular groove surrounding the electrode post hole and communicating with the electrode post hole;
  • the first limiting member further includes a third limiting part surrounding the pole post.
  • the third limiting part is connected to the side of the second limiting part away from the first limiting part.
  • the third limiting part is embedded in the annular groove and connected to the top cover plate.
  • the battery further includes:
  • a sealing element is disposed in the limiting groove.
  • the sealing element includes a first sealing part and a second sealing part that are connected to each other.
  • the first sealing part is disposed between the second column part and the second limiting part and abuts against the second column part and the second limiting part.
  • the second sealing part is disposed between the first limiting part and the second column part and abuts against the first limiting part and the second column part.
  • the battery further includes:
  • the second insulating member includes a third insulating portion and a fourth insulating portion connected to each other.
  • the third insulating portion is disposed on the side of the top cover sheet facing the electrode assembly and covers the first limiting member. At least a portion of the fourth insulating portion is disposed between the first limiting portion and the third post portion and surrounds the third post portion.
  • a portion of the first insulating member is embedded in the limiting groove, and one of the first insulating member and the first limiting member is provided with a third protrusion, and the other is provided with a third groove into which the third protrusion is embedded.
  • the first protrusion is disposed on the top cover plate
  • the second protrusion is disposed on the pole post
  • the first groove and the second groove are distributed on the first insulating member so that the first protrusion and the second protrusion are respectively embedded.
  • the first protrusion is disposed on the top cover plate
  • the second protrusion is disposed on the first insulating member
  • the first groove is disposed on the first insulating member
  • the second groove is disposed on the pole post.
  • the first protrusion is disposed on the first insulating member
  • the second protrusion is disposed on the pole post
  • the first groove is disposed on the top cover plate
  • the second groove is disposed on the first insulating member
  • the battery pack described in this application includes the battery described above.
  • the battery of this application embodiment includes a casing, an electrode assembly, a top cover, a terminal post, a first limiting member, and a first insulating member.
  • the casing has a receiving cavity and an opening, the opening communicating with the receiving cavity.
  • the electrode assembly is disposed in the receiving cavity, and the top cover covers the opening.
  • the top cover has a terminal post hole, and a portion of the terminal post passes through the terminal post hole and connects to the electrode assembly.
  • the first limiting member is located on the side of the top cover facing the electrode assembly.
  • the first limiting member includes a first limiting portion and a second limiting portion. The second limiting portion surrounds the first limiting portion, connects to the top cover, and surrounds the terminal post.
  • the first limiting portion and the top cover form a limiting groove in a first direction, and a portion of the terminal post is embedded in the limiting groove.
  • a portion of the first insulating member passes through the terminal post hole and surrounds the terminal post. At least a portion of the first insulating member abuts between the top cover and the terminal post.
  • One of the top cover and the first insulating member has a first protrusion, and the other has a first groove for the first protrusion to be inserted.
  • One of the terminal post and the first insulating member has a second protrusion, and the other has a second groove for the second protrusion to be inserted.
  • the first protrusion is embedded in the first groove and the second protrusion is embedded in the second groove, forming a mutual limiting effect between the top cover plate, the pole post and the first insulating component, thereby improving the torsional resistance of the pole post.
  • Figure 1 is a schematic diagram of the structure of the battery according to an embodiment of this application.
  • Figure 2 is a schematic diagram of the exploded structure of the battery according to an embodiment of this application.
  • FIG. 3 is a schematic diagram of the top cover structure according to an embodiment of this application.
  • Figure 4 is a partial sectional view along line A-A in Figure 3;
  • Figure 5 is an exploded structural diagram of the pole post, the first limiting member, the first insulating member, and the sealing member according to an embodiment of this application;
  • Figure 6 is a schematic diagram of the structure of the top cover sheet according to an embodiment of this application.
  • FIG. 7 is a structural schematic diagram of the top cover structure according to another embodiment of this application.
  • Figure 8 is a partial cross-sectional view along line B-B in Figure 7;
  • Figure 9 is a structural schematic diagram of the first limiting member according to another embodiment of this application.
  • Figure 10 is a schematic diagram of the structure of the first insulating element according to another embodiment of this application.
  • Second limiting part; 142 limiting groove; 143, third groove; 144, third limiting part; 15, first insulating member; 150, first protrusion; 151, second protrusion; 152, first insulating part; 153, second insulating part; 154, third protrusion; 16, sealing member; 160, first sealing part; 161, second sealing part; 17, second insulating member; 170, third insulating part; 171, fourth insulating part; X, first direction.
  • first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with “first” and “second” may explicitly or implicitly include one or more features. In the description of this application, “multiple” means two or more, and “at least one” can mean one, two, or more, unless otherwise explicitly specified.
  • the battery terminals are key components that conductively connect electrode assemblies and external devices. During battery manufacturing, the terminals are usually riveted to the top cover of the battery and the conductive connection terminals are welded together. In addition, plastic injection molding is required to surround the terminals to form insulation and fixation support.
  • a first direction X is introduced, which is parallel to the thickness direction of the battery top cover structure in this embodiment.
  • a battery 1 includes a housing 10, an electrode assembly 11, a top cover 12, a terminal post 13, a first limiting member 14, and a first insulating member 15.
  • the housing 10 has a receiving cavity 100 and an opening 101, with the opening 101 communicating with the receiving cavity 100.
  • the electrode assembly 11 is disposed in the receiving cavity 100.
  • a top cover 12 covers the opening 101 and has an electrode post hole 120.
  • the electrode post hole 120 penetrates the top cover 12 in the first direction X, and a portion of the electrode post 13 passes through the electrode post hole 120 and connects to the electrode assembly 11.
  • a first limiting member 14 is located on the side of the top cover 12 facing the electrode assembly 11.
  • the first limiting member 14 includes a first limiting part 140 and a second limiting part 141.
  • the second limiting part 141 surrounds the first limiting part 140, connects to the top cover 12, and surrounds the electrode post 13.
  • the first limiting part 140 and the top cover 12 form a limiting groove 142 in the first direction X, and a portion of the electrode post 13 is embedded in the limiting groove 142.
  • a portion of the first insulating member 15 passes through the pole hole 120 and surrounds the pole 13, with at least a portion of the first insulating member 15 abutting between the top cover plate 12 and the pole 13.
  • One of the top cover plate 12 and the first insulating member 15 is provided with a first protrusion 150, and the other is provided with a first groove 121 for the first protrusion 150 to be inserted.
  • One of the pole post 13 and the first insulating member 15 is provided with a second protrusion 150, and the other is provided with a second groove 130 for the second protrusion 150 to be inserted.
  • the top cover plate 12 and the first limiting member 14 clamp the pole post 13 in the first direction X, thereby improving the limiting effect on the pole post 13 and increasing its torsional strength.
  • the first protrusion 150 is embedded in the first groove 121 and the second protrusion 151 is embedded in the second groove 130, forming a mutual limiting effect between the top cover plate 12, the pole post 13, and the first insulating member 15, further improving the torsional resistance of the pole post 13.
  • the first protrusion 150 and the second protrusion 151 are respectively provided on the first insulating member 15, the first groove 121 is provided on the top cover plate 12, and the second groove 130 is provided on the pole post 13.
  • the first protrusion 150 may also be provided on the top cover plate 12, the second protrusion 151 may be provided on the pole post 13, and the first groove 121 and the second groove 130 may be distributed on the first insulating member 15 so that the first protrusion 150 and the second protrusion 151 may be respectively embedded.
  • the first protrusion 150 may also be provided on the top cover plate 12, the second protrusion 151 may be provided on the first insulating member 15, the first groove 121 may be provided on the first insulating member 15, and the second groove 130 may be provided on the pole post 13.
  • the first protrusion 150 may also be provided on the first insulating member 15, the second protrusion 151 may be provided on the pole post 13, the first groove 121 may be provided on the top cover plate 12, and the second groove 130 may be provided on the first insulating member 15.
  • the purpose is to mutually limit the top cover plate 12, pole post 13 and first insulating member 15 through the first protrusion 150, the second protrusion 151, the first groove 121 and the second groove 130, which will not be elaborated here.
  • the electrode post 13 includes a first post portion 131, a second post portion 132, and a third post portion 133 disposed in the first direction X.
  • the first post portion 131 is located on the side of the third post portion 133 opposite to the electrode assembly 11, and the second post portion 132 is at least partially located within the limiting groove 142.
  • the first insulating member 15 includes a first insulating portion 152 surrounding the first post portion 131 and a second insulating portion 153 connecting the side of the first insulating portion 152 opposite to the first post portion 131.
  • the first insulating portion 152 abuts against the first post portion 131 and the top cover plate 12, and a first protrusion 150 is provided on the first insulating portion 152.
  • the second insulating portion 153 is at least partially disposed within the limiting groove 142, and the second insulating portion 153 abuts against the second post portion 132 and the top cover plate 12.
  • first column 131, the second column 132 and the third column 133 can be made of the same material, such as aluminum, in a single molding process. In other embodiments, the first column 131, the second column 132 and the third column 133 can also be made of different materials. For example, the first column 131 and the second column 132 can be made of aluminum, and the third column 133 can be made of copper to better conduct electricity and connect to the electrode assembly 11.
  • the side of the first post portion 131 away from the second post portion 132 can be flush with the side of the top cover plate 12 away from the electrode assembly 11, which is beneficial to reduce the space occupied by the electrode post 13 on the battery 1 in the first direction X, and is beneficial to improve the energy density of the battery 1.
  • a first protrusion 150 and a second protrusion 151 are provided at one end of the first insulating portion 152 away from the second post portion 132.
  • first protrusion 150 and the second protrusion 151 can be integrally formed with the first insulating member 15, that is, during the injection molding process of the first insulating member 15, the portion injected into the first groove 121 and the second groove 130 naturally forms the first protrusion 150 and the second protrusion 151.
  • the second protrusion 151 extends radially toward the first post portion 131 along the first insulating portion 152, and the first protrusion 150 extends radially away from the first post portion 131 along the first insulating portion 152.
  • the thickness of the second protrusion 151 is less than the thickness of the first protrusion 150. Since the first protrusion 150 has a larger contact area with the top cover plate 2, this design can further improve the structural strength of the top cover assembly, thereby further improving the torsional resistance of the pole post 13.
  • the cross-section of the first protrusion 150 and the second protrusion 151 is rectangular.
  • the shapes of the first groove 121 and the second groove 130 can also be designed as other shapes, such as circles or other irregular shapes, depending on the requirements.
  • first protrusions 150, second protrusions 151, first grooves 121, and second grooves 130 are provided, with each first protrusion 150 embedded in a first groove 121 and each second protrusion 151 embedded in a second groove 130.
  • the first grooves 121 and second grooves 130 corresponding to the multiple first protrusions 150 and the multiple second protrusions 151 are evenly distributed around the pole post 13 at intervals.
  • four first protrusions 150, four second protrusions 151, four first grooves 121, and four second grooves 130 are provided as an example.
  • the number of first protrusions 150, second protrusions 151, four first grooves 121, and four second grooves 130 can be flexibly increased or decreased according to actual needs.
  • the positions of the first protrusion 150 and the second protrusion 151 can also be adjusted along the first direction X. This can be achieved by adjusting the opening positions of the first groove 121 and the second groove 130 along the first direction X, which will not be elaborated further here.
  • the top cover plate 12 has an annular groove 122 on the side facing the electrode assembly 11, the annular groove 122 surrounds the electrode post hole 120 and communicates with the electrode post hole 120.
  • the first limiting member 14 also includes a third limiting portion 144 surrounding the electrode post 13, the third limiting portion 144 is connected to the side of the second limiting portion 141 opposite to the first limiting portion 140, the third limiting portion 144 is embedded in the annular groove 122 and connected to the top cover plate 12.
  • the first limiting member 14 can be connected to the top cover plate 12 by welding the third limiting portion 144.
  • the battery 1 further includes a sealing member 16 disposed in the limiting groove 142.
  • the sealing member 16 includes a first sealing portion 160 and a second sealing portion 161 connected to each other.
  • the first sealing portion 160 is disposed between the second post portion 132 and the second limiting portion 141, and the first sealing portion 160 abuts against the second post portion 132 and the second limiting portion 141.
  • the second sealing portion 161 is disposed between the first limiting portion 140 and the second post portion 132, and the second sealing portion 161 abuts against the first limiting portion 140 and the second post portion 132.
  • the battery 1 further includes a second insulating member 17.
  • the second insulating member 17 includes a third insulating portion 170 and a fourth insulating portion 171 connected to each other.
  • the third insulating portion 170 is disposed on the side of the top cover sheet 12 facing the electrode assembly 11 and covers the first limiting member 14.
  • At least a portion of the fourth insulating portion 171 is disposed between the first limiting portion 140 and the third post portion 133 and surrounds the third post portion 133.
  • the third insulating part 170 and the fourth insulating part 171 can be integrally molded by injection molding.
  • the third insulating part 170 is insulatingly spaced between the electrode assembly 11 and the top cover plate 12, while the fourth insulating part 171 is further insulatingly spaced between the pole post 13 and the first limiting member 14, thereby improving the insulation protection of the pole post 13.
  • the fourth insulating part 171 forms a fixing effect on the pole post 13, thereby improving the torsional resistance of the pole post 13.
  • the fourth insulating portion 171 is located between the seal 16 and the first limiting member 14, and the fourth insulating portion 171 abuts against the seal 16, the first limiting member 14 and the third post portion 133.
  • the sealing element 16 in conjunction with the fourth insulating part 171, surrounds the terminal post and forms a multiple seal between the first limiting member 14 and the top cover plate 12, which helps to improve the airtightness of the terminal post installation position and improve the safety performance of the battery.
  • the second insulating portion 153 has a third protrusion 154 on the side opposite to the first insulating portion 152.
  • the first limiting member 14 can be adaptively provided with a third groove 143 for the third protrusion 154 to be inserted.
  • the third protrusion 154 can also be integrally molded with the first insulating member 15.
  • the limiting and fixing effect between the first limiting member 14 and the first insulating member 15 is further improved, thereby improving the fixing effect between the pole post 13 and the top cover plate 12 and improving the torsional resistance of the pole post 13.
  • the longitudinal section of the third protrusion 154 and the third groove 143 is rectangular.
  • the shape of the second protrusion 153 and the third groove 143 can also be designed into other shapes, such as circles or other irregular shapes, depending on the requirements.
  • the third protrusion 154 may also be provided on the first limiting member 14, and correspondingly, the third groove 143 is provided on the second insulating part 153, which will not be described in detail here.
  • this application provides a battery pack including the aforementioned battery 1.
  • This battery pack can be applied to electronic devices, energy storage devices, or electric vehicles, etc. It is understood that the battery pack can possess all the technical features and corresponding beneficial effects of the aforementioned battery 1, which will not be elaborated further here.
  • the present application provides a detailed description of a battery and battery pack, and uses specific examples to illustrate the principles and implementation methods of the present application.
  • the description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present application.
  • Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

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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

本申请公开了一种电池及电池包，属于电池技术领域，电池包括具有容纳腔及开口的壳体；电极组件，设于容纳腔；顶盖片，盖设于开口并设有极柱孔；极柱，穿设于极柱孔并连接电极组件；第一限位件，包括第一限位部及第二限位部，第二限位部连接顶盖片，第一限位部和顶盖片形成限位槽，极柱的部分嵌设于限位槽；第一绝缘件，部分穿设于极柱孔并环绕极柱；顶盖片和第一绝缘件中的一者设有第一凸部，另一者设有供第一凸部嵌入的第一凹槽，极柱和第一绝缘件中的一者设有第二凸部，另一者设有供第二凸部嵌入的第二凹槽。本申请通过第一凸部与第一凹槽、第二凸部与第二凹槽的嵌设，形成顶盖片、极柱及第一绝缘件之间相互限位，从而提高极柱的抗扭能力。

Description

一种电池及电池包
相关申请的交叉引用
本申请要求在2024年6月25日提交中国专利局、申请号为202421465297.4、申请名称为“一种电池及电池包”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
本申请属于电池技术领域，具体涉及一种电池及电池包。
背景技术
电池结构中，极柱通常采用铆接工艺连接电池的顶盖，极柱作为重要的导电结构，需要连接各类导电结构。如电池应用于如汽车领域时，常处于振动状态，极柱需要承受周向的扭转力，存在极柱和电池顶盖脱离的风险，因此极柱装配结构的抗扭能力直接影响电池制造的良品率以及使用安全性。
发明内容
本申请目的：本申请实施例提供一种电池，旨在解决上述技术问题；本申请的另一目的在于提供一种应用上述电池的电池包。
技术方案：本申请实施例所述的一种电池，所述电池具有第一方向，所述电池包括：
壳体，所述壳体具有容纳腔以及开口，所述开口连通所述容纳腔；
电极组件，所述电极组件设于所述容纳腔；
顶盖片，所述顶盖片盖设于所述开口，所述顶盖片开设有极柱孔，所述极柱孔在所述第一方向贯穿所述顶盖片；
极柱，所述极柱部分穿设于所述极柱孔，且所述极柱连接所述电极组件；
第一限位件，所述第一限位件位于所述顶盖片朝向所述电极组件的一侧，所述第一限位件包括第一限位部以及第二限位部，所述第二限位部环绕所述第一限位部，所述第二限位部连接所述顶盖片并环绕所述极柱，所述第一限位部和所述顶盖片在所述第一方向上形成限位槽，且所述极柱的部分嵌设于所述限位槽；
第一绝缘件，所述第一绝缘件的部分穿设于所述极柱孔并环绕所述极柱，所述第一绝缘件的至少部分抵接在所述顶盖片和所述极柱之间；
其中，所述顶盖片和所述第一绝缘件中的一者设有第一凸部，另一者设有供所述第一凸部嵌入的第一凹槽，且所述极柱和所述第一绝缘件中的一者设有第二凸部，另一者设有供所述第二凸部嵌入的第二凹槽。
在一些实施例中，所述第一凸部和所述第二凸部分别设于所述第一绝缘件，所述第一凹槽设于所述顶盖片，所述第二凹槽设于所述极柱。
在一些实施例中，所述第一凸部、所述第二凸部、所述第一凹槽和所述第二凹槽分别设有多个，且每个所述第一凸部分别嵌入一所述第一凹槽，每个所述第二凸部分别嵌入一所述第二凹槽。
在一些实施例中，多个所述第一凸部环绕所述极柱间隔分布；
和/或，多个所述第二凸部环绕所述极柱间隔分布。
在一些实施例中，所述极柱包括在第一方向上设置的第一柱部、第二柱部和第三柱部，所述第一柱部位于所述第三柱部背离所述电极组件的一侧，所述第二柱部至少部分位于所述限位槽内；
所述第一绝缘件包括环绕所述第一柱部的第一绝缘部，所述第一绝缘部抵接所述第一柱部和所述顶盖片，且所述第一凸部和所述第二凸部分别设于所述第一绝缘部。
在一些实施例中，所述第一绝缘件还包括第二绝缘部，所述第二绝缘部连接所述第一绝缘部背离所述第一柱部的一侧，所述第二绝缘部至少部分设于所述限位槽内，且所述第二绝缘部抵接所述第二柱部和所述顶盖片。
在一些实施例中，所述顶盖片朝向所述电极组件的一侧开设有环槽，所述环槽环绕所述极柱孔并与所述极柱孔连通；
所述第一限位件还包括环绕所述极柱的第三限位部，所述第三限位部连接所述第二限位部背离所述第一限位部的一侧，所述第三限位部嵌设于所述环槽并连接所述顶盖片。
在一些实施例中，所述的电池还包括：
密封件，所述密封件设于所述限位槽，所述密封件包括相互连接的第一密封部和第二密封部，所述第一密封部设于所述第二柱部和所述第二限位部之间，且所述第一密封部抵接所述第二柱部和所述第二限位部，所述第二密封部设于所述第一限位部和所述第二柱部之间，且所述第二密封部抵接所述第一限位部和所述第二柱部。
在一些实施例中，所述的电池还包括：
第二绝缘件，所述第二绝缘件包括相互连接的第三绝缘部和第四绝缘部，所述第三绝缘部设于所述顶盖片朝向所述电极组件的一侧，且所述第三绝缘部覆盖所述第一限位件，所述第四绝缘部的至少部分设于所述第一限位部和所述第三柱部之间，且所述第四绝缘部环绕所述第三柱部。
在一些实施例中，所述第一绝缘件的部分嵌设于所述限位槽，所述第一绝缘件和所述第一限位件中的一者设有第三凸部，另一者设有供所述第三凸部嵌入的第三凹槽。
在一些实施例中，所述第一凸部设于顶盖片，所述第二凸部设于所述极柱，所述第一凹槽和所述第二凹槽分布于所述第一绝缘件，以供所述第一凸部和所述第二凸部分别嵌入。
在一些实施例中，所述第一凸部设于顶盖片，所述第二凸部设于所述第一绝缘件，所述第一凹槽设于所述第一绝缘件，所述第二凹槽设于所述极柱。
在一些实施例中，所述第一凸部设于所述第一绝缘件，所述第二凸部设于所述极柱，所述第一凹槽设于所述顶盖片，所述第二凹槽设于所述第一绝缘件。
相应的，本申请实施例所述的一种电池包，包括上述的电池。
有益效果：本申请实施例的电池包括壳体、电极组件、顶盖片、极柱、第一限位件以及第一绝缘件。壳体具有容纳腔以及开口，开口连通容纳腔，电极组件设于容纳腔，顶盖片盖设于开口。顶盖片开设有极柱孔，极柱部分穿设于极柱孔并连接电极组件。第一限位件位于顶盖片朝向电极组件的一侧，第一限位件包括第一限位部以及第二限位部，第二限位部环绕第一限位部，第二限位部连接顶盖片并环绕极柱，第一限位部和顶盖片在第一方向上形成限位槽，极柱的部分嵌设于限位槽。第一绝缘件的部分穿设于极柱孔并环绕极柱，第一绝缘件的至少部分抵接在顶盖片和极柱之间；顶盖片和第一绝缘件中的一者设有第一凸部，另一者设有供第一凸部嵌入的第一凹槽，极柱和第一绝缘件中的一者设有第二凸部，另一者设有供第二凸部嵌入的第二凹槽。通过第一凸部嵌设于第一凹槽、第二凸部嵌设于第二凹槽，形成顶盖片、极柱以及第一绝缘件之间相互限位作用，从而提高极柱的抗扭能力。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例电池的结构示意图；
图2是本申请实施例电池的爆炸结构示意图；
图3是本申请实施例顶盖结构的结构示意图；
图4是图3中沿A-A线的局部剖视图；
图5是本申请实施例极柱、第一限位件、第一绝缘件和密封件的爆炸结构示意图；
图6是本申请实施例顶盖片的结构示意图；
图7是本申请另一实施例顶盖结构的结构示意图；
图8是图7中沿B-B线的局部剖视图；
图9是本申请另一实施例第一限位件的结构示意图；
图10是本申请另一实施例第一绝缘件的结构示意图；
附图标记：1、电池；10、壳体；100、容纳腔；101、开口；11、电极组件；12、顶盖片；120、极柱孔；121、第一凹槽；122、环槽；123、泄压阀；124、泄压孔；13、极柱；130、第二凹槽；131、第一柱部；132、第二柱部；133、第三柱部；14、第一限位件；140、第一限位部；141、第二限位部；142、限位槽；143、第三凹槽；144、第三限位部；15、第一绝缘件；150、第一凸部；151、第二凸部；152、第一绝缘部；153、第二绝缘部；154、第三凸部；16、密封件；160、第一密封部；161、第二密封部；17、第二绝缘件；170、第三绝缘部；171、第四绝缘部；X、第一方向。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”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，仅是为了便于描述本申请和简化描述，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”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。在本申请的描述中，“多个”的含义是两个或两个以上，至少一个指可以为一个、两个或者两个以上，除非另有明确具体的限定。
电池的极柱是导电连接电极组件和外部器件的关键部件，在电池制造过程中，通常需要将极柱铆接至电池顶盖上，并焊接连接各导电连接端，此外，需要将上塑胶注塑环绕极柱，以形成绝缘及固定支撑极柱的作用。
电池在应用于汽车等用电设备过程中，需要常常处于振动状态，极柱需要承受周向的扭转力，无疑增大了极柱和电池顶盖脱离的风险，因此极柱装配结构的抗扭能力直接影响电池制造的良品率以及使用安全性。
有鉴于此，结合图1至图10，本申请实施例提供一种电池，旨在克服上述技术问题的至少一者。
下述各实施例中，引入有第一方向X，第一方向X即平行于本实施例中电池顶盖结构的厚度方向。
参照图1至图10，一种电池1包括壳体10、电极组件11、顶盖片12、极柱13、第一限位件14以及第一绝缘件15。
其中，壳体10具有容纳腔100以及开口101，开口101连通容纳腔100，电极组件11设于容纳腔100。顶盖片12盖设于开口101，顶盖片12开设有极柱孔120，极柱孔120在第一方向X贯穿顶盖片12，极柱13部分穿设于极柱孔120并连接电极组件11。第一限位件14位于顶盖片12朝向电极组件11的一侧，第一限位件14包括第一限位部140以及第二限位部141，第二限位部141环绕第一限位部140，第二限位部141连接顶盖片12并环绕极柱13，第一限位部140和顶盖片12在第一方向X上形成限位槽142，极柱13的部分嵌设于所述限位槽142。第一绝缘件15的部分穿设于极柱孔120并环绕极柱13，第一绝缘件15的至少部分抵接在顶盖片12和极柱13之间。
顶盖片12和第一绝缘件15中的一者设有第一凸部150，另一者设有供第一凸部150嵌入的第一凹槽121，极柱13和第一绝缘件15中的一者设有第二凸部150，另一者设有供第二凸部150嵌入的第二凹槽130。
可以理解的是，顶盖片12和第一限位件14在第一方向X夹持极柱13，从而提高对极柱13的限位作用，提高极柱13的抗扭强度。在此基础上，通过第一凸部150嵌设于第一凹槽121、第二凸部151嵌设于第二凹槽130，形成顶盖片12、极柱13以及第一绝缘件15之间相互限位作用，进一步提高极柱13的抗扭能力。
需要说明的是，本实施例中，参照图3至图5，第一凸部150和第二凸部151分别设于第一绝缘件15，第一凹槽121设于顶盖片12，第二凹槽130设于极柱13。
在其他实施例中，第一凸部150也可以设于顶盖片12，第二凸部151设于极柱13，第一凹槽121和第二凹槽130分布于第一绝缘件15，以供第一凸部150和第二凸部151分别嵌入。
在其他实施例中，第一凸部150也可以设于顶盖片12，第二凸部151设于第一绝缘件15，第一凹槽121设于第一绝缘件15，第二凹槽130设于极柱13。
在其他实施例中，第一凸部150也可以设于第一绝缘件15，第二凸部151设于极柱13，第一凹槽121设于顶盖片12，第二凹槽130设于第一绝缘件15。
旨在将顶盖片12、极柱13以及第一绝缘件15通过第一凸部150、第二凸部151、第一凹槽121和第二凹槽130形成相互限位即可，在此不再赘述。
具体的，参照图3至图5，极柱13包括在第一方向X上设置的第一柱部131、第二柱部132和第三柱部133，第一柱部131位于第三柱部133背离电极组件11的一侧，第二柱部132至少部分位于限位槽142内。第一绝缘件15包括环绕第一柱部131的第一绝缘部152以及连接第一绝缘部152背离第一柱部131的一侧的第二绝缘部153，第一绝缘部152抵接第一柱部131和顶盖片12，且第一凸部150设于第一绝缘部152。第二绝缘部153至少部分设于限位槽142内，且第二绝缘部153抵接第二柱部132和顶盖片12。
需要说明的是，第一柱部131、第二柱部132和第三柱部133可采用相同材质如铝一体成型制造，在其他实施例中，第一柱部131、第二柱部132和第三柱部133也可以采用不同材质，如第一柱部131和第二柱部132可采用铝材质，第三柱部133可采用铜材质以更好的导电连接电极组件11。
此外，可以理解的是，由于第一限位件14设于顶盖片12朝向电极组件11的一侧，参照图4，本实施例中第一柱部131背离第二柱部132的一侧可与顶盖片12背离电极组件11的一侧相齐平，有利于减少极柱13对电池1在第一方向X的空间占用，有利于提高电池1能量密度。
在一些实施例中，参照图4至图6，第一凸部150和第二凸部151设于第一绝缘部152背离第二柱部132的一端。
可以理解的是，第一凸部150和第二凸部151可与第一绝缘件15一体成型，即在第一绝缘件15注塑成型过程中，注入第一凹槽121和第二凹槽130的部分自然形成第一凸部150和第二凸部151。
具体地，形成的第二凸部151沿第一绝缘部152的径向向靠近第一柱部131的方向延伸，形成的第一凸部150沿第一绝缘部152的径向向背离第一柱部131的方向延伸。
沿第一方向X，形成的第二凸部151的厚度小于形成的第一凸部150的厚度，由于第一凸部150与顶盖片2接触的面积更大，这样设计，能够进一步提高顶盖组件的结构强度，从而进一步提高极柱13的抗扭能力。
其中，形成的第一凸部150和第二凸部151的横截面为矩形，也可以根据需求将第一凹槽121和第二凹槽130的形状设计为其他形状，如圆形或者其它不规则形状。
为了进一步提高极柱13的抗扭能力，在一些实施例中，第一凸部150、第二凸部151、第一凹槽121和第二凹槽130分别设有多个，且每个第一凸部150分别嵌入一个第一凹槽121，每个第二凸部151分别嵌入一个第二凹槽130。多个第一凸部150、多个第二凸部151对应的第一凹槽121、第二凹槽130分别环绕极柱13间隔均匀分布。本实施例中，第一凸部150、第二凸部151、第一凹槽121和第二凹槽130均设置四个为例，在其他实施例中可以根据实际需要灵活增减第一凸部150、第二凸部151、第一凹槽121和第二凹槽130的数量。
此外，可以理解的是，在一些实施例中，第一凸部150、第二凸部151的设置位置也可以沿第一方向X调整，通过沿第一方向X调整第一凹槽121和第二凹槽130的开设位置即可，在此不再赘述。
在一些实施例中，参照图4，顶盖片12朝向电极组件11的一侧开设有环槽122，环槽122环绕极柱孔120并与极柱孔120连通。第一限位件14还包括环绕极柱13的第三限位部144，第三限位部144连接第二限位部141背离第一限位部140的一侧，第三限位部144嵌设于环槽122并连接顶盖片12。通过将顶盖片12上预设环槽122，从而便于快速定位装配第一限位件14，提高第一限位件14的装配稳定性，实际第一限位件14可采用第三限位部144焊接连接顶盖片12即可。
在一些实施例中，参照图4和图5，为了提高极柱孔120处的密封效果，电池1还包括设于限位槽142的密封件16。密封件16包括相互连接的第一密封部160和第二密封部161，第一密封部160设于第二柱部132和第二限位部141之间，且第一密封部160抵接第二柱部132和第二限位部141，第二密封部161设于第一限位部140和第二柱部132之间，且第二密封部161抵接第一限位部140和第二柱部132。
在一些实施例中，参照图4，电池1还包括第二绝缘件17。第二绝缘件17包括相互连接的第三绝缘部170和第四绝缘部171，第三绝缘部170设于顶盖片12朝向电极组件11的一侧，且第三绝缘部170覆盖第一限位件14，第四绝缘部171的至少部分设于第一限位部140和第三柱部133之间，且第四绝缘部171环绕第三柱部133。
可以理解的是，第三绝缘部170和第四绝缘部171可采用注塑一体成型，第三绝缘部170绝缘间隔在电极组件11和顶盖片12之间，同时第四绝缘部171进一步绝缘间隔在极柱13和第一限位件14之间，提高对极柱13的绝缘保护，同时第四绝缘部171形成对极柱13的固定作用，提高极柱13的抗扭能力。
在一些实施例中，第四绝缘部171位于密封件16和第一限位件14之间，且第四绝缘部171抵接密封件16、第一限位件14和第三柱部133。
密封件16配合第四绝缘部171环绕极柱，并在第一限位件14和顶盖片12之间形成多重密封，有利于提高极柱安装位置的气密性，提高电池的安全性能。
此外，为了进一步提高极柱13的抗扭能力，在一些实施例中，参照图7至图10，第二绝缘部153背离第一绝缘部152的一侧设有第三凸部154，对应的，第一限位件14可适应性开设供第三凸部154嵌入的第三凹槽143。第一绝缘件15在注塑成型过程中，第三凸部154同样可与第一绝缘件15一体成型，通过第三凸部154和第三凹槽143的配合，进一步提高第一限位件14和第一绝缘件15之间的限位固定效果，从而提高极柱13和顶盖片12之间的固定效果，提高极柱13的抗扭能力。
其中，第三凸部154和第三凹槽143的纵截面为矩形，也可以根据需求将第二凸部153和第三凹槽143的形状设计为其他形状，如圆形或者其它不规则形状。
可以理解的是，在一些实施例中，第三凸部154也可以设于第一限位件14上，对应的，第三凹槽143即设于第二绝缘部153上，在此不再赘述。
相应的，本申请实施例提供一种电池包，该电池包包括上述的电池1。该电池包可以应用于电子设备、蓄电设备、或者动力汽车等设备，可以理解的是，该电池包可以具有上述电池1的所有技术特征和对应的有益效果，在此不再赘述。
以上对本申请实施例所提供的一种电池及电池包进行了详细介绍，并应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；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申请各实施例的技术方案的范围。

Claims (14)

  1. 一种电池(1)，其中，所述电池(1)具有第一方向(X)，所述电池(1)包括：
    壳体(10)，所述壳体(10)具有容纳腔(100)以及开口(101)，所述开口(101)连通所述容纳腔(100)；
    电极组件(11)，所述电极组件(11)设于所述容纳腔(100)；
    顶盖片(12)，所述顶盖片(12)盖设于所述开口(101)，所述顶盖片(12)开设有极柱孔(120)，所述极柱孔(120)在所述第一方向(X)贯穿于所述顶盖片(12)；
    极柱(13)，所述极柱(13)部分穿设于所述极柱孔(120)，且所述极柱(13)连接所述电极组件(11)；
    第一限位件(14)，所述第一限位件(14)位于所述顶盖片(12)朝向所述电极组件(11)的一侧，所述第一限位件(14)包括第一限位部(140)以及第二限位部(141)，所述第二限位部(141)环绕所述第一限位部(140)，所述第二限位部(141)连接所述顶盖片(12)并环绕所述极柱(13)，所述第一限位部(140)和所述顶盖片(12)在所述第一方向(X)上形成限位槽(142)，且所述极柱(13)部分嵌设于所述限位槽(142)；
    第一绝缘件(15)，所述第一绝缘件(15)的部分穿设于所述极柱孔(120)并环绕所述极柱(13)，所述第一绝缘件(15)的至少部分抵接在所述顶盖片(12)和所述极柱(13)之间；
    其中，所述顶盖片(12)和所述第一绝缘件(15)中的一者设有第一凸部(150)，另一者设有供所述第一凸部(150)嵌入的第一凹槽(121)，且所述极柱(13)和所述第一绝缘件(15)中的一者设有第二凸部(150)，另一者设有供所述第二凸部(150)嵌入的第二凹槽(130)。
  2. 根据权利要求1所述的电池(1)，其中，
    所述第一凸部(150)和所述第二凸部(151)分别设于所述第一绝缘件(15)，所述第一凹槽(121)设于所述顶盖片(12)，所述第二凹槽(130)设于所述极柱(13)。
  3. 根据权利要求1所述的电池(1)，其中，
    所述第一凸部(150)、所述第二凸部(151)、所述第一凹槽(121)和所述第二凹槽(130)分别设有多个，且每个所述第一凸部(150)分别嵌入一所述第一凹槽(121)，每个所述第二凸部(151)分别嵌入一所述第二凹槽(130)。
  4. 根据权利要求3所述的电池(1)，其中，
    多个所述第一凸部(150)环绕所述极柱(13)间隔分布；
    和/或，多个所述第二凸部(151)环绕所述极柱(13)间隔分布。
  5. 根据权利要求2所述的电池(1)，其中，
    所述极柱(13)包括在第一方向(X)上设置的第一柱部(131)、第二柱部(132)和第三柱部(133)，所述第一柱部(131)位于所述第三柱部(133)背离所述电极组件(11)的一侧，所述第二柱部(132)至少部分位于所述限位槽(142)内；
    所述第一绝缘件(15)包括环绕所述第一柱部(131)的第一绝缘部(152)，所述第一绝缘部(152)抵接所述第一柱部(131)和所述顶盖片(12)，且所述第一凸部(150)和所述第二凸部(151)分别设于所述第一绝缘部(152)。
  6. 根据权利要求5所述的电池(1)，其中，
    所述第一绝缘件(15)还包括第二绝缘部(153)，所述第二绝缘部(153)连接所述第一绝缘部(152)背离所述第一柱部(131)的一侧，所述第二绝缘部(153)至少部分设于所述限位槽(142)内，且所述第二绝缘部(153)抵接所述第二柱部(132)和所述顶盖片(12)。
  7. 根据权利要求1所述的电池(1)，其中，
    所述顶盖片(12)朝向所述电极组件(11)的一侧开设有环槽(122)，所述环槽(122)环绕所述极柱孔(120)并与所述极柱孔(120)连通；
    所述第一限位件(14)还包括环绕所述极柱(13)的第三限位部(144)，所述第三限位部(144)连接所述第二限位部(141)背离所述第一限位部(140)的一侧，所述第三限位部(144)嵌设于所述环槽(122)并连接所述顶盖片(12)。
  8. 根据权利要求5所述的电池(1)，还包括：
    密封件(16)，所述密封件(16)设于所述限位槽(142)，所述密封件(16)包括相互连接的第一密封部(160)和第二密封部(161)，所述第一密封部(160)设于所述第二柱部(132)和所述第二限位部(141)之间，且所述第一密封部(160)抵接所述第二柱部(132)和所述第二限位部(141)，所述第二密封部(161)设于所述第一限位部(140)和所述第二柱部(132)之间，且所述第二密封部(161)抵接所述第一限位部(140)和所述第二柱部(132)。
  9. 根据权利要求5所述的电池(1)，还包括：
    第二绝缘件(17)，所述第二绝缘件(17)包括相互连接的第三绝缘部(170)和第四绝缘部(171)，所述第三绝缘部(170)设于所述顶盖片(12)朝向所述电极组件(11)的一侧，且所述第三绝缘部(170)覆盖所述第一限位件(14)，所述第四绝缘部(171)的至少部分设于所述第一限位部(140)和所述第三柱部(133)之间，且所述第四绝缘部(171)环绕所述第三柱部(133)。
  10. 根据权利要求1至9中任一项所述的电池(1)，其中，
    所述第一绝缘件(15)的部分嵌设于所述限位槽(142)，所述第一绝缘件(15)和所述第一限位件(14)中的一者设有第三凸部(153)，另一者设有供所述第三凸部(153)嵌入的第三凹槽(143)。
  11. 根据权利要求1所述的电池(1)，其中，
    所述第一凸部(150)设于顶盖片(12)，所述第二凸部(151)设于所述极柱(13)，所述第一凹槽(121)和所述第二凹槽(130)分布于所述第一绝缘件(15)，以供所述第一凸部(150)和所述第二凸部(151)分别嵌入。
  12. 根据权利要求1所述的电池(1)，其中，
    所述第一凸部(150)设于顶盖片(12)，所述第二凸部(151)设于所述第一绝缘件(15)，所述第一凹槽(121)设于所述第一绝缘件(15)，所述第二凹槽(130)设于所述极柱(13)。
  13. 根据权利要求1所述的电池(1)，其中，
    所述第一凸部(150)设于所述第一绝缘件(15)，所述第二凸部(151)设于所述极柱(13)，所述第一凹槽(121)设于所述顶盖片(12)，所述第二凹槽(130)设于所述第一绝缘件(15)。
  14. 一种电池包，包括如权利要求1至13中任一项所述的电池(1)。
PCT/CN2025/079316 2024-06-25 2025-02-26 一种电池及电池包 Pending WO2026001041A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011216243A (ja) * 2010-03-31 2011-10-27 Lithium Energy Japan:Kk 電池
CN117855715A (zh) * 2024-02-04 2024-04-09 欣旺达动力科技股份有限公司 一种电池及电池包
CN118073737A (zh) * 2024-02-04 2024-05-24 欣旺达动力科技股份有限公司 一种电池及电池包

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011216243A (ja) * 2010-03-31 2011-10-27 Lithium Energy Japan:Kk 電池
CN117855715A (zh) * 2024-02-04 2024-04-09 欣旺达动力科技股份有限公司 一种电池及电池包
CN118073737A (zh) * 2024-02-04 2024-05-24 欣旺达动力科技股份有限公司 一种电池及电池包

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