WO2024088219A1 - Structure de connexion et procédé de connexion de languette, batterie, module de batterie et dispositif électrique - Google Patents

Structure de connexion et procédé de connexion de languette, batterie, module de batterie et dispositif électrique Download PDF

Info

Publication number
WO2024088219A1
WO2024088219A1 PCT/CN2023/125992 CN2023125992W WO2024088219A1 WO 2024088219 A1 WO2024088219 A1 WO 2024088219A1 CN 2023125992 W CN2023125992 W CN 2023125992W WO 2024088219 A1 WO2024088219 A1 WO 2024088219A1
Authority
WO
WIPO (PCT)
Prior art keywords
tab
groove
pole
tab connection
protective sheet
Prior art date
Application number
PCT/CN2023/125992
Other languages
English (en)
Chinese (zh)
Inventor
陈进强
赖宏基
Original Assignee
厦门海辰储能科技股份有限公司
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 厦门海辰储能科技股份有限公司 filed Critical 厦门海辰储能科技股份有限公司
Publication of WO2024088219A1 publication Critical patent/WO2024088219A1/fr

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
    • H01M50/502—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
    • 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
    • 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 energy storage technology, and in particular to a tab connection structure and method, a battery, a battery module and an electrical device.
  • Secondary batteries such as lithium batteries have the advantages of high energy density, high power density, many cycles and long storage time. In recent years, they have been widely used in electric vehicles such as electric vehicles and electric bicycles, and large and medium-sized electric equipment such as energy storage facilities.
  • the electrode assembly in the secondary battery usually includes a pole tab and a switching plate, and the pole tab and the switching plate need to be welded together.
  • a main purpose of the present application is to provide a tab connection structure to improve the welding effect between the tab and the adapter.
  • a tab connection structure comprising:
  • the adapter plate comprises a tab connection portion, wherein a groove is provided on the tab connection portion;
  • a pole lug is welded to the pole lug connecting portion, a welding mark formed on the pole lug for welding with the pole lug connecting portion, and the orthographic projection of the welding mark on the adapter sheet at least partially falls into the groove.
  • the tab completely covers the groove.
  • the depth of the groove is less than 50% of the thickness of the tab connecting portion.
  • the tab connection structure further includes:
  • the protective sheet is arranged on a side of the tab away from the tab connection portion, and at least a portion of the positive projection of the protective sheet on the adapter sheet is located in the groove.
  • the orthographic projection of the protection sheet on the adapter sheet is located in the groove.
  • the shape of the protection sheet matches the shape of the groove.
  • the depth of the groove is greater than 30% of the sum of the thickness of the tab and the protection sheet.
  • the depth of the groove is less than 50% of the sum of the thickness of the tab and the protection sheet.
  • the groove includes a bottom surface and a transition surface surrounding the bottom surface, wherein the transition surface connects the bottom surface with the top surface of the pole ear connecting portion; from the edge area of the groove toward the center area, the depth of the groove at the transition surface increases gradually.
  • the protection sheet includes a first surface and a second surface opposite to each other and a side surface connecting the first surface and the second surface, and the side surface is parallel to the transition surface.
  • a tab connection method comprising:
  • the transfer plate comprising a tab connection portion, the tab connection portion being provided with a groove
  • the pole lug is arranged on the pole lug connecting portion, and the pole lug and the pole lug connecting portion are welded; after welding, a welding mark is formed on the pole lug, and the orthographic projection of the welding mark on the adapter sheet at least partially falls into the groove.
  • the tab connection method further includes:
  • a protective sheet is arranged on the side of the pole tab away from the pole tab connecting portion, and the protective sheet, the pole tab and the pole tab connecting portion are welded; after welding, a weld mark is formed on the protective sheet, and at least part of the positive projection of the weld mark on the adapter sheet is located in the groove.
  • a battery comprising the above-mentioned tab connection structure.
  • a battery module comprising the above-mentioned battery.
  • an electrical device comprising the above-mentioned battery module.
  • FIG. 1 is a front view of a tab connection structure provided in one embodiment of the present application.
  • FIG. 2 is a rear view of a tab connection structure provided in one embodiment of the present application.
  • FIG. 3 is a front view of a tab connection structure provided in another embodiment of the present application.
  • FIG. 4 is a schematic diagram of an adapter provided in one embodiment of the present application.
  • FIG. 5 is a top view of an adapter provided in one embodiment of the present application.
  • FIG. 6 is a schematic diagram of an adapter provided in another embodiment of the present application.
  • FIG. 7 is a cross-sectional view of a tab connection structure provided in another embodiment of the present application.
  • FIG. 8 is a flow chart of a tab connection method provided in one embodiment of the present application.
  • Battery cell body 20. Earpiece; 30, adapter; 310, pole ear connection portion; 3110, top surface; 320, groove; 3210, bottom surface; 3220, transition surface; 40, protective sheet; 410, first surface; 420, second surface; 430, side surface; 50. Welding mark.
  • the pole lug connection structure includes a pole lug 20 and a transfer plate 30, the transfer plate 30 includes a pole lug connection portion 310, and the pole lug connection portion 310 is provided with a groove 320; the pole lug 20 is welded to the pole lug connection portion 310, and a weld mark 50 welded to the pole lug connection portion 310 is formed on the pole lug 20, and the orthographic projection of the weld mark 20 on the transfer plate 30 at least partially falls into the groove 320.
  • the pole lug connection structure provided in the present application has a groove 320 on the pole lug connection portion 310, and a weld mark 20 is formed after the pole lug 20 is welded to the pole lug connection portion 310.
  • the orthographic projection of the weld mark 20 on the adapter plate 30 at least partially falls into the groove 320, that is, at least part of the groove 320 serves as the welding position between the adapter plate 30 and the pole lug 20.
  • the thickness of the position where the groove 320 is set on the adapter plate 30 is relatively small, which makes it easier to ultrasonically weld the pole lug 20 and the adapter 30, thereby improving the welding effect between the pole lug 20 and the adapter 30.
  • the tab 20 completely covers the groove 320. After the tab 20 is placed above the groove 320, it completely covers the groove 320 to prevent the edge of the tab 20 from being located in the groove 320, so that only the bottom surface of the groove 320 is used as the welding position of the adapter 30 and the tab 20, further making it easier to ultrasonically weld the tab 20 and the adapter 30, thereby improving the welding effect of the tab 20 and the adapter 30.
  • the tab connection structure further includes: a protective sheet 40.
  • the protective sheet 40 is disposed on the side of the tab 20 away from the tab connection portion 310, and at least part of the positive projection of the protective sheet 40 on the adapter sheet 30 is located in the groove 320.
  • At least part of the positive projection of the protective sheet 40 on the adapter sheet 30 is located in the groove 320.
  • the bottom of the protective sheet 40 drives at least part of the pole ear 20 to be pressed into the groove 320, thereby improving the sliding dislocation of the protective sheet 40 during welding through the guiding effect of the groove 320; at the same time, the groove 320 also provides a storage space for the pole ear 20 after vibration deformation.
  • the tab 20 completely covers the groove 320. After the tab 20 is placed above the groove 320, The groove 320 is covered to prevent the edge of the pole tab 20 from being located in the groove 320, that is, the pole tab 20 is completely blocked between the protection sheet 40 and the groove 320, thereby preventing the protection sheet 40 from not being completely pressed on the pole tab 20, thereby improving the reliability of the welding between the pole tab 20 and the pole tab connecting part 310.
  • the orthographic projection of the protective sheet 40 on the adapter sheet 30 is located in the groove 320.
  • the size of the protective sheet 40 is less than or equal to the size of the groove 320
  • the bottom of the protective sheet 40 drives the tab 20 to be pressed into the groove 320, and the guiding effect of the groove 320 enables the protective sheet 40 to be better located above the groove 320.
  • the protective sheet 40 is guided and limited by the side wall of the groove 320 in the circumferential direction, which further improves the guiding effect of the groove 320 and further improves the sliding dislocation of the protective sheet 40 during welding.
  • the shape of the protective sheet 40 matches the shape of the groove 320.
  • the shape of the protective sheet 40 is consistent with the shape of the groove 320, after the protective sheet 40 is located above the groove 320 through the guiding effect of the groove 320, the gap between the protective sheet 40 and the side wall of the groove 320 in the circumferential direction can be consistent or substantially consistent, thereby improving the guiding effect of the groove 320, allowing the protective sheet 40 to be completely located in the groove 320, and further improving the sliding dislocation of the protective sheet 40 during welding.
  • the shape of the groove 320 can be a trapezoid, and the shape of the protective sheet 40 can also be a trapezoid.
  • the shape of the groove 320 can also be a rectangle, a circle, an ellipse, a triangle, a polygon, a circular shape or an irregular shape, and the shape of the protective sheet 40 can match the shape of the groove 320; of course, the shape of the protective sheet 40 and the shape of the groove 320 can also not match, for example, the groove 320 is a trapezoid, and the protective sheet 40 is a rectangle, and the protective sheet 40 can be located on the groove 320 and play the role of a conductor through the groove 320.
  • This application does not limit this, and any changes in the shape of the groove 320 and the protective sheet 40 are within the protection scope of this application.
  • the depth of the groove 320 is greater than 30% of the sum of the thickness of the tab 20 and the protective sheet 40.
  • the groove 320 can provide a space for accommodating the tab 20 after vibration deformation, so as to ensure that the tab 20 is completely pressed into the groove 320, and ensure the stability of the connection structure between the adapter 30 and the tab 20.
  • the depth of the groove 320 is greater than 30%, 35%, 40%, 45%, etc.
  • the depth of the groove 320 can also be less than 30% of the sum of the thickness of the tab 20 and the protective sheet 40, and the present application does not limit this.
  • the depth of the groove 320 is less than 50% of the sum of the thickness of the tab 20 and the protective sheet 40.
  • the depth of the groove 320 is less than 50% of the sum of the thickness of the tab 20 and the protective sheet 40, so as to prevent the depth of the groove 320 from being too large and reducing the strength of the adapter 30.
  • the depth of the groove 320 is less than 50%, 45%, 40%, 35%, etc. of the sum of the thickness of the tab 20 and the protective sheet 40, which are not listed here in this application; of course, the depth of the groove 320 can also be greater than 50% of the sum of the thickness of the tab 20 and the protective sheet 40, which is not limited in this application.
  • the groove 320 can provide a storage space for the pole ear 20 after vibration deformation, so as to ensure that the pole ear 20 is completely pressed into the groove 320 and ensure the stability of the connection structure between the adapter plate 30 and the pole ear 20, and can also prevent the depth of the groove 320 from being too large, thereby reducing the strength of the adapter plate 30.
  • the depth of the groove 320 is less than 50% of the thickness of the tab connection portion 310.
  • the depth of the groove 320 is prevented from being too large, thereby reducing the strength of the adapter 30.
  • the depth of the groove 320 is less than 50%, 45%, 40%, 35%, etc. of the thickness of the tab connection portion 310, which are not listed one by one in this application; of course, the depth of the groove 320 may also be greater than 50% of the thickness of the tab connection portion 310, which is not limited in this application.
  • the depth of the groove 320 is greater than 30% of the thickness of the tab connection portion 310.
  • the depth of the groove 320 is greater than 30% of the thickness of the tab connection portion 310.
  • the groove 320 can provide a space for accommodating the tab 20 after vibration deformation, so as to ensure that the tab 20 is completely pressed into the groove 320, and ensure the stability of the connection structure between the adapter 30 and the tab 20.
  • the depth of the groove 320 is greater than 30%, 35%, 40%, 45%, etc. of the thickness of the tab connection portion 310, which are not listed one by one in this application; of course, the depth of the groove 320 can also be less than 30% of the thickness of the tab connection portion 310, which is not limited in this application.
  • the groove 320 can provide a storage space for the pole lug 20 after vibration deformation, so as to ensure that the pole lug 20 is completely pressed into the groove 320 and ensure the stability of the connection structure between the adapter plate 30 and the pole lug 20, and can also prevent the depth of the groove 320 from being too large to reduce the strength of the adapter plate 30.
  • the groove 320 includes a bottom surface 3210 and a transition surface 3220 surrounding the bottom surface 3210, and the transition surface 3220 connects the bottom surface 3210 with the top surface 3110 of the tab connection portion 310.
  • the depth of the groove 320 at the transition surface 3220 increases from the edge area of the groove 320 toward the center area.
  • the transition surface 3220 can be regarded as the side wall of the groove 320.
  • the depth of the groove 320 increases from the edge area toward the central area, that is, the side wall of the groove 320 is an inclined surface; by making the depth of the groove 320 at the transition surface 3220 increase from the edge area toward the central area of the groove 320, on the one hand, it can better form a guiding effect on the protective sheet 40, so that when the ultrasonic welding head acts on the protective sheet 40, the protective sheet 40 can be better pressed into the groove 320; on the other hand, the side wall of the groove 320 is an inclined surface, so as to avoid excessive extrusion pressure on the pole ear 20 caused by the opening edge of the groove 320, resulting in tearing of the pole ear 20, thereby improving the reliability of the pole ear connection structure.
  • the depth of the groove 320 described in the above embodiments is the depth at the bottom surface 3210 of the groove 320.
  • the slope can be an arc surface convex toward the opening periphery of the groove 320, or the slope can be an arc surface concave toward the bottom surface of the groove 320, or the slope can be a continuous uneven slope, and the present application does not impose any restrictions on this.
  • the protective sheet 40 includes a first surface 410 and a second surface 520 facing each other and a side surface 430 connecting the first surface 410 and the second surface 420, and the side surface 430 is parallel to the transition surface 3220 of the groove 320.
  • the side surface 430 of the protective sheet 40 By making the side surface 430 of the protective sheet 40 parallel to the transition surface 3220 of the groove 320, after the bottom of the protective sheet 40 drives at least part of the tab 20 to be pressed into the groove 320, the pressing effect of the protective sheet 40 on the tab 20 at the transition surface 322 is improved, and the stability of the protective sheet 40 after pressing the tab 20 is improved; at the same time, the side surface 430 of the protective sheet 40 forms a larger surface contact with the tab 20, thereby avoiding the situation where a larger extrusion stress is applied to the tab 20 and cracks in the tab 20, and improving the reliability of welding the tab 20.
  • the side surface 430 of the protective sheet 40 and the transition surface 3220 of the groove 320 are parallel or partially parallel in the circumferential direction; of course, the side surface 430 of the protective sheet 40 and the transition surface 3220 of the groove 320 can also be set non-parallel, for example, there is a certain angle between the side surface 430 and the transition surface 3220, such as 5°-15°, and the present application does not impose any restrictions on this.
  • the side surface 430 of the protective sheet 40 may be formed by connecting two sub-side surfaces with different inclination angles.
  • the sub-side surface connected to the second surface 420 and corresponding to the transition surface 3220 has the same bevel angle as the transition surface 3220, that is, the sub-side surface is parallel to the transition surface 3220; the inclination angle of the sub-side surface not corresponding to the transition surface 3220 may be, for example, 90°, that is, the sub-side surface is perpendicular to the connected first surface 410.
  • the side surface 430 of the protective sheet 40 may be connected by three, four, five or more sub-side surfaces with different inclination angles. It is sufficient to ensure that the sub-side surface corresponding to the transition surface 3220 is parallel to the transition surface 3220, and this application does not impose any limitation on this.
  • a chamfer may be provided on the opening edge of the groove 320, that is, a chamfer is provided at the connection between the transition surface 3220 of the groove 320 and the top surface 3110 of the tab connection portion 310, and the chamfer surface is a plane or an arc surface.
  • chamfers can be formed on the circumference of the opening edge of the groove 320, that is, a continuous circle of chamfered surfaces is formed on the opening edge of the groove 320, so as to further avoid the situation where the opening edge of the groove 320 exerts too much pressure on the tab 20, resulting in the tab 20 being torn.
  • chamfers can also be set on the opening edges of some grooves 320, and this application does not limit this.
  • the embodiment of the present application further provides a tab connection method, as shown in FIG8 , the tab connection method includes:
  • Step S100 providing a transfer plate, wherein the transfer plate comprises a tab connection portion, and a groove is provided on the tab connection portion;
  • Step S200 placing the electrode tab on the electrode tab connecting portion, and welding the electrode tab and the electrode tab connecting portion; after welding, a welding mark is formed on the electrode tab, and the orthographic projection of the welding mark on the adapter sheet at least partially falls into the groove.
  • the pole lug connection method provided in the present application is provided with a groove on the pole lug connection part.
  • the positive projection of the weld mark on the pole lug on the adapter sheet at least partially falls into the groove, that is, at least part of the groove serves as the welding position between the adapter sheet and the pole lug.
  • the thickness of the position where the groove is set on the adapter sheet is relatively small, which makes it easier to ultrasonically weld the pole lug and the adapter, thereby improving the welding effect between the pole lug and the adapter.
  • the pole ear connection method further includes: arranging a protective sheet on the side of the pole ear away from the pole ear connection part, welding the protective sheet, the pole ear and the pole ear connection part; after welding, a weld mark is formed on the protective sheet, and at least part of the positive projection of the weld mark on the adapter sheet is located in the groove.
  • the pole ear When the pole ear is ultrasonically welded to the pole ear connection part through the protective sheet, the pole ear is first placed above the groove, and then the protective sheet is placed above the pole ear, and the protective sheet is slightly aligned with the groove, the pole ear covers at least part of the groove, and at least part of the positive projection of the protective sheet on the adapter sheet is located in the groove, when the ultrasonic welding head acts on the protective sheet, the bottom of the protective sheet drives at least part of the pole ear to be pressed into the groove, thereby improving the sliding dislocation of the protective sheet during welding through the guiding effect of the groove.
  • the embodiment of the present application also provides a battery, which includes the above-mentioned tab connection structure.
  • the battery includes two cells, and the two cells respectively include a cell body 10 and a tab 20 connected to the cell body 10.
  • the positive tabs of the two cells are connected together through the above-mentioned tab connection structure, thereby connecting to the positive pole of the battery through the pole connection part;
  • the negative tabs of the two cells are connected together through the above-mentioned tab connection structure, thereby connecting to the negative pole of the battery through the pole connection part;
  • the battery can be a lithium-ion battery.
  • the battery provided by the present application has a groove on the tab connection portion of the adapter. After the tab is welded to the tab connection portion, the orthographic projection of the welding mark on the tab on the adapter at least partially falls into the groove, that is, at least part of the groove serves as the welding position of the adapter and the tab.
  • the thickness of the position where the groove is set on the adapter is relatively small, which makes it easier to ultrasonically weld the tab and the adapter, thereby improving the welding effect of the tab and the adapter. The reliability of the battery is improved.
  • the embodiment of the present application also provides a battery module, which includes the above-mentioned battery, and the battery module is, for example, a battery pack.
  • the battery module provided by the present application, a groove is provided on the pole ear connection portion of the adapter of the battery, and after the pole ear is welded to the pole ear connection portion, the positive projection of the weld mark on the pole ear on the adapter at least partially falls into the groove, that is, at least part of the groove serves as the welding position of the adapter and the pole ear, and the thickness of the position where the groove is set on the adapter is relatively small, which makes it easier to ultrasonically weld the pole ear and the adapter, thereby improving the welding effect of the pole ear and the adapter and improving the reliability of the battery module.
  • the embodiment of the present application also provides an electric device, which includes the above-mentioned battery module, and the electric device is, for example, a vehicle or an energy storage device.
  • the electric device provided by the present application, a groove is provided on the pole ear connection portion of the adapter of the battery, and after the pole ear is welded to the pole ear connection portion, the positive projection of the weld mark on the pole ear on the adapter at least partially falls into the groove, that is, at least part of the groove serves as the welding position between the adapter and the pole ear, and the thickness of the position where the groove is set on the adapter is relatively small, which makes it easier to ultrasonically weld the pole ear and the adapter, thereby improving the welding effect of the pole ear and the adapter, thereby improving the reliability of the electric device.
  • the term “plurality” refers to two or more than two, unless otherwise clearly defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.
  • “connected” can be a fixed connection, a detachable connection, or an integral connection;
  • “connected” can be a direct connection or an indirect connection through an intermediate medium.
  • the specific meanings of the above terms in the application examples can be understood according to the specific circumstances.
  • an embodiment means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment.
  • the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Landscapes

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

Abstract

La présente invention concerne une structure de connexion de languette, un procédé de connexion de languette, une batterie, un module de batterie et un dispositif électrique. La structure de connexion de languette comprend : une languette (20) et une pièce d'adaptation (30), la pièce d'adaptation (30) comprenant une partie de connexion de languette (310), et une rainure (320) étant prévue sur la partie de connexion de languette (310) ; la languette (20) est soudée à la partie de connexion de languette (310), une marque de soudage (50) soudée à la partie de connexion de languette (310) étant formée sur la languette (20), et au moins une partie d'une projection orthographique de la marque de soudage (50) sur la pièce d'adaptation (30) tombant dans la rainure (320). Au moyen de la structure de connexion de languette, l'effet de soudage de la languette (20) et de la pièce d'adaptation (30) est amélioré.
PCT/CN2023/125992 2022-10-26 2023-10-23 Structure de connexion et procédé de connexion de languette, batterie, module de batterie et dispositif électrique WO2024088219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211319016.XA CN116154413A (zh) 2022-10-26 2022-10-26 极耳连接结构与连接方法、电池、电池模组和用电设备
CN202211319016.X 2022-10-26

Publications (1)

Publication Number Publication Date
WO2024088219A1 true WO2024088219A1 (fr) 2024-05-02

Family

ID=86357113

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/125992 WO2024088219A1 (fr) 2022-10-26 2023-10-23 Structure de connexion et procédé de connexion de languette, batterie, module de batterie et dispositif électrique

Country Status (2)

Country Link
CN (1) CN116154413A (fr)
WO (1) WO2024088219A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116154413A (zh) * 2022-10-26 2023-05-23 厦门海辰储能科技股份有限公司 极耳连接结构与连接方法、电池、电池模组和用电设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060027251A (ko) * 2004-09-22 2006-03-27 삼성에스디아이 주식회사 보호회로기판의 접속리드 절곡장치
CN210723207U (zh) * 2019-11-27 2020-06-09 蜂巢能源科技有限公司 用于电池的极耳连接片及具有其的电池
CN212991168U (zh) * 2020-06-05 2021-04-16 中航锂电技术研究院有限公司 盖板组件、电池及电池包
CN114142180A (zh) * 2021-11-30 2022-03-04 江苏正力新能电池技术有限公司 电池转接构件、电池以及电池的组装方法
CN218975734U (zh) * 2022-12-01 2023-05-05 湖北亿纬动力有限公司 连接片及电池
CN116154413A (zh) * 2022-10-26 2023-05-23 厦门海辰储能科技股份有限公司 极耳连接结构与连接方法、电池、电池模组和用电设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112913076A (zh) * 2018-11-21 2021-06-04 深圳市大疆创新科技有限公司 智能电池及其锂电芯
CN210956823U (zh) * 2019-12-06 2020-07-07 欣旺达电动汽车电池有限公司 单体电池及动力电池组
WO2021217970A1 (fr) * 2020-04-30 2021-11-04 昆山宝创新能源科技有限公司 Module de batterie, groupe de modules de batterie le comprenant et automobile
CN212257538U (zh) * 2020-05-14 2020-12-29 江苏塔菲尔新能源科技股份有限公司 一种电池转接片与极柱连接结构、电池顶盖及电池
CN212277276U (zh) * 2020-05-29 2021-01-01 江苏塔菲尔新能源科技股份有限公司 一种电池极耳与转接片的连接结构及电池
CN212434733U (zh) * 2020-06-16 2021-01-29 桑顿新能源科技有限公司 电芯顶盖结构和锂电池电芯
CN112787047A (zh) * 2021-01-29 2021-05-11 常州瑞德丰精密技术有限公司 转接片、二次电池及电池模组
CN216120643U (zh) * 2021-10-18 2022-03-22 厦门海辰新能源科技有限公司 电池
CN114824675B (zh) * 2022-05-20 2024-07-19 瑞浦兰钧能源股份有限公司 一种电芯转接片及其焊接方法
CN217444466U (zh) * 2022-05-23 2022-09-16 远景动力技术(江苏)有限公司 一种电芯结构及电芯

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060027251A (ko) * 2004-09-22 2006-03-27 삼성에스디아이 주식회사 보호회로기판의 접속리드 절곡장치
CN210723207U (zh) * 2019-11-27 2020-06-09 蜂巢能源科技有限公司 用于电池的极耳连接片及具有其的电池
CN212991168U (zh) * 2020-06-05 2021-04-16 中航锂电技术研究院有限公司 盖板组件、电池及电池包
CN114142180A (zh) * 2021-11-30 2022-03-04 江苏正力新能电池技术有限公司 电池转接构件、电池以及电池的组装方法
CN116154413A (zh) * 2022-10-26 2023-05-23 厦门海辰储能科技股份有限公司 极耳连接结构与连接方法、电池、电池模组和用电设备
CN218975734U (zh) * 2022-12-01 2023-05-05 湖北亿纬动力有限公司 连接片及电池

Also Published As

Publication number Publication date
CN116154413A (zh) 2023-05-23

Similar Documents

Publication Publication Date Title
US20220238973A1 (en) Battery and electric apparatus with such battery
US7638238B2 (en) Electrode assembly and lithium ion secondary battery using the same
WO2024088219A1 (fr) Structure de connexion et procédé de connexion de languette, batterie, module de batterie et dispositif électrique
WO2019148644A1 (fr) Boîtier de module de batterie et module de batterie
WO2023103993A1 (fr) Feuille d'électrode et batterie
WO2023185279A1 (fr) Batterie
WO2022193190A1 (fr) Feuille d'électrode et son procédé de préparation, batterie et dispositif électronique
WO2024016911A1 (fr) Élément de batterie, batterie et dispositif électrique
WO2019140779A1 (fr) Élément de connexion et batterie rechargeable
WO2024120551A1 (fr) Feuille d'électrode et élément de batterie
WO2022082437A1 (fr) Batterie et dispositif électronique la comportant
WO2024078623A1 (fr) Batterie secondaire et dispositif électronique
WO2024083016A1 (fr) Ensemble coque, élément de batterie, batterie et dispositif électrique
WO2023024719A1 (fr) Élément de batterie, batterie et dispositif utilisant une batterie
WO2023025104A1 (fr) Élément de batterie, batterie et dispositif électrique
WO2023050282A1 (fr) Élément de batterie et système et procédé de fabrication associés, batterie et dispositif électrique
CN105591061A (zh) 极耳连接组件及二次电池
WO2021189380A1 (fr) Dispositif électrochimique et dispositif électronique
CN115176376A (zh) 电化学装置及用电设备
WO2024082140A1 (fr) Capuchon d'extrémité, élément de batterie, batterie et dispositif électrique
WO2024082141A1 (fr) Élément de batterie, batterie et dispositif électrique
WO2024066169A1 (fr) Élément de batterie, batterie et dispositif électrique
WO2023133806A1 (fr) Élément de batterie, et procédé de fabrication et système associé, batterie et dispositif électrique
WO2023159463A1 (fr) Élément de batterie, son procédé de préparation et son système de préparation, batterie et appareil électrique
US20230369726A1 (en) Connecting Member and Battery

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: 23881797

Country of ref document: EP

Kind code of ref document: A1