WO2022242666A1 - 极柱和极集流盘的组装结构、电池 - Google Patents
极柱和极集流盘的组装结构、电池 Download PDFInfo
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- WO2022242666A1 WO2022242666A1 PCT/CN2022/093476 CN2022093476W WO2022242666A1 WO 2022242666 A1 WO2022242666 A1 WO 2022242666A1 CN 2022093476 W CN2022093476 W CN 2022093476W WO 2022242666 A1 WO2022242666 A1 WO 2022242666A1
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- Prior art keywords
- insulator
- groove
- hole
- conductive
- casing
- Prior art date
Links
- 238000005476 soldering Methods 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims description 107
- 238000003466 welding Methods 0.000 claims description 39
- 229910000679 solder Inorganic materials 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 14
- 229910001416 lithium ion Inorganic materials 0.000 description 14
- 230000004308 accommodation Effects 0.000 description 4
- 238000004898 kneading Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
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- 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
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button 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
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
- H01M50/56—Cup shaped 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present application relates to the field of batteries, for example, to an assembly structure of a pole post and a pole current collector and a battery provided with the above assembly structure.
- Fig. 2 is an exploded view of an assembly structure of a pole and a pole current collector provided by an embodiment of the present application;
- the positive electrode current collector includes a welding pad and a conductive protrusion
- the second insulator is arranged between the positive electrode current collector and the first insulator
- the conductive protrusion is arranged on the end surface of the welding pad close to the second insulator .
- a first groove is provided on the end surface of the connecting end close to the positive current collecting plate, and the width of the conductive protrusion is smaller than the width of the first groove.
- the conductive protrusion is connected with the groove bottom surface of the first groove.
- the end surface of the welding pad far away from the second insulator is connected to the positive electrode of the battery cell. In an all-tab lithium-ion battery, the end surface of the welding pad away from the second insulator can be set to be welded to the positive electrode of the battery cell.
- the positive pole is electrically connected to the positive pole of the battery cell through the positive pole current collector.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (20)
- 一种极柱和极集流盘的组装结构,包括正极柱、正极集流盘、第一绝缘件和第二绝缘件,所述第二绝缘件设置在所述正极集流盘和所述第一绝缘件之间;所述正极柱包括导电端、连接端以及连接杆,所述导电端和所述连接端之间通过所述连接杆连接,所述导电端的宽度和所述连接端的宽度均大于所述连接杆的宽度;所述连接杆依次贯穿所述第一绝缘件和所述第二绝缘件,所述第一绝缘件相比于所述第二绝缘件更靠近所述导电端,所述第一绝缘件和所述第二绝缘件之间设置有容纳空间;所述正极集流盘包括焊接盘和导电凸起,所述导电凸起设置在所述焊接盘靠近所述第二绝缘件的端面,所述连接端靠近所述正极集流盘的端面设置有第一凹槽,所述正极集流盘和所述正极柱存在接触的部分仅为所述导电凸起远离所述焊接盘的端面和所述第一凹槽的槽底面。
- 根据权利要求1所述的组装结构,其中,所述第一绝缘件上设置有第一贯穿孔,所述第二绝缘件上设置有第二贯穿孔,所述第一贯穿孔的中轴线和所述第二贯穿孔的中轴线重合,所述连接杆贯穿所述第一贯穿孔和所述第二贯穿孔,所述第一贯穿孔的孔径和所述第二贯穿孔的孔径均不小于所述连接杆的宽度,所述导电端的宽度大于所述第一贯穿孔的孔径,所述连接端的宽度大于所述第二贯穿孔的孔径。
- 根据权利要求2所述的组装结构,其中,所述第一绝缘件远离所述第二绝缘件的端面设置有第二凹槽,所述第二凹槽的槽底面设置有所述第一贯穿孔的孔口,所述导电端和所述第二凹槽接触;所述第二绝缘件远离所述第一绝缘件的端面设置有第三凹槽,所述第三凹槽的槽底面设置有所述第二贯穿孔的孔口,所述连接端和所述第三凹槽接触。
- 根据权利要求3所述的组装结构,其中,所述导电端的侧壁和所述第二凹槽的内侧壁贴合,所述导电端位于所述第二凹槽的内部的端面和所述第二凹槽的槽底面壁贴合;所述连接端的侧壁和所述第三凹槽的内侧壁贴合,所述连接端位于所述第三凹槽的内部的端面和所述第三凹槽的槽底面壁贴合。
- 根据权利要求4所述的组装结构,其中,所述导电端的高度不小于所述第二凹槽的深度。
- 根据权利要求5所述的组装结构,其中,所述导电凸起上设置有FUSE。
- 根据权利要求6所述的组装结构,其中,所述连接端的高度小于所述第 三凹槽的深度,所述焊接盘和所述第二绝缘件远离所述第一绝缘件的端面接触,所述连接端和所述焊接盘之间存在间隙。
- 一种电池,包括壳体和设置在所述壳体内部的电芯,所述壳体为槽体结构,所述壳体包括壳体底部和壳体底端面,其中,所述电池设置有极柱和极集流盘的组装结构;所述极柱和极集流盘的组装结构,包括正极柱、正极集流盘、第一绝缘件和第二绝缘件,所述第二绝缘件设置在所述正极集流盘和所述第一绝缘件之间;所述正极柱包括导电端、连接端以及连接杆,所述导电端和所述连接端之间通过所述连接杆连接,所述导电端的宽度和所述连接端的宽度均大于所述连接杆的宽度;所述连接杆依次贯穿所述第一绝缘件和所述第二绝缘件,所述第一绝缘件相比于所述第二绝缘件更靠近所述导电端,所述第一绝缘件和所述第二绝缘件之间设置有容纳空间;所述正极集流盘包括焊接盘和导电凸起,所述导电凸起设置在所述焊接盘靠近所述第二绝缘件的端面,所述连接端靠近所述正极集流盘的端面设置有第一凹槽,所述正极集流盘和所述正极柱存在接触的部分仅为所述导电凸起远离所述焊接盘的端面和所述第一凹槽的槽底面。
- 根据权利要求8所述的电池,其中,所述第一绝缘件上设置有第一贯穿孔,所述第二绝缘件上设置有第二贯穿孔,所述第一贯穿孔的中轴线和所述第二贯穿孔的中轴线重合,所述连接杆贯穿所述第一贯穿孔和所述第二贯穿孔,所述第一贯穿孔的孔径和所述第二贯穿孔的孔径均不小于所述连接杆的宽度,所述导电端的宽度大于所述第一贯穿孔的孔径,所述连接端的宽度大于所述第二贯穿孔的孔径。
- 根据权利要求9所述的电池,其中,所述第一绝缘件远离所述第二绝缘件的端面设置有第二凹槽,所述第二凹槽的槽底面设置有所述第一贯穿孔的孔口,所述导电端和所述第二凹槽接触;所述第二绝缘件远离所述第一绝缘件的端面设置有第三凹槽,所述第三凹槽的槽底面设置有所述第二贯穿孔的孔口,所述连接端和所述第三凹槽接触。
- 根据权利要求10所述的电池,其中,所述导电端的侧壁和所述第二凹槽的内侧壁贴合,所述导电端位于所述第二凹槽的内部的端面和所述第二凹槽的槽底面壁贴合;所述连接端的侧壁和所述第三凹槽的内侧壁贴合,所述连接端位于所述第三凹槽的内部的端面和所述第三凹槽的槽底面壁贴合。
- 根据权利要求11所述的电池,其中,所述导电端的高度不小于所述第二凹槽的深度。
- 根据权利要求12所述的电池,其中,所述导电凸起上设置有FUSE。
- 根据权利要求13所述的电池,其中,所述连接端的高度小于所述第三凹槽的深度,所述焊接盘和所述第二绝缘件远离所述第一绝缘件的端面接触,所述连接端和所述焊接盘之间存在间隙。
- 根据权利要求8所述的电池,其中,所述壳体底部上设置有连接孔,所述连接孔贯穿所述壳体底部,所述组装结构中的正极柱贯穿所述连接孔进入所述壳体的内部,所述组装结构中的第二绝缘件和所述组装结构中的正极集流盘设置在所述壳体的内部,所述组装结构中的第一绝缘件设置在所述壳体底端面的外侧,所述第一绝缘件和所述壳体底端面接触,所述第二绝缘件和所述壳体的槽底面接触,所述正极柱的连接杆的宽度小于所述连接孔的孔径,所述连接杆的外侧壁不和所述连接孔的内侧壁接触。
- 根据权利要求15所述的电池,其中,所述电芯为全极耳结构,所述正极集流盘的焊接盘远离所述正极集流盘的导电凸起的端面连接所述的电芯的正极端面。
- 根据权利要求9所述的电池,其中,所述壳体底部上设置有连接孔,所述连接孔贯穿所述壳体底部,所述组装结构中的正极柱贯穿所述连接孔进入所述壳体的内部,所述组装结构中的第二绝缘件和所述组装结构中的正极集流盘设置在所述壳体的内部,所述组装结构中的第一绝缘件设置在所述壳体底端面的外侧,所述第一绝缘件和所述壳体底端面接触,所述第二绝缘件和所述壳体的槽底面接触,所述正极柱的连接杆的宽度小于所述连接孔的孔径,所述连接杆的外侧壁不和所述连接孔的内侧壁接触。
- 根据权利要求17所述的电池,其中,所述电芯为全极耳结构,所述正极集流盘的焊接盘远离所述正极集流盘的导电凸起的端面连接所述的电芯的正极端面。
- 根据权利要求10所述的电池,其中,所述壳体底部上设置有连接孔,所述连接孔贯穿所述壳体底部,所述组装结构中的正极柱贯穿所述连接孔进入所述壳体的内部,所述组装结构中的第二绝缘件和所述组装结构中的正极集流盘设置在所述壳体的内部,所述组装结构中的第一绝缘件设置在所述壳体底端面的外侧,所述第一绝缘件和所述壳体底端面接触,所述第二绝缘件和所述壳体的槽底面接触,所述正极柱的连接杆的宽度小于所述连接孔的孔径,所述连接杆的外侧壁不和所述连接孔的内侧壁接触。
- 根据权利要求19所述的电池,其中,所述电芯为全极耳结构,所述正极集流盘的焊接盘远离所述正极集流盘的导电凸起的端面连接所述的电芯的正极端面。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US18/013,934 US20240243452A1 (en) | 2021-05-21 | 2022-05-18 | Assembled structure of pole and pole current collector disk, and battery |
EP22803986.3A EP4160778A4 (en) | 2021-05-21 | 2022-05-18 | POLE AND ELECTRODE CURRENT COLLECTOR DISC ARRANGEMENT STRUCTURE AND BATTERY |
JP2023541827A JP7515731B2 (ja) | 2021-05-21 | 2022-05-18 | 極柱と電極集電プレートとの組立構造、電池 |
KR1020237026186A KR20230128338A (ko) | 2021-05-21 | 2022-05-18 | 극기둥 및 전극집전판의 조립구조 및 배터리 |
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CN202121102907.0U CN215578674U (zh) | 2021-05-21 | 2021-05-21 | 正极柱和正极集流盘的组装结构、电池 |
CN202121102907.0 | 2021-05-21 |
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WO2022242666A1 true WO2022242666A1 (zh) | 2022-11-24 |
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EP (1) | EP4160778A4 (zh) |
JP (1) | JP7515731B2 (zh) |
KR (1) | KR20230128338A (zh) |
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Cited By (1)
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CN115911691A (zh) * | 2023-03-14 | 2023-04-04 | 广汽埃安新能源汽车股份有限公司 | 顶盖组件、电池单体及动力电池包 |
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CN215578674U (zh) * | 2021-05-21 | 2022-01-18 | 湖北亿纬动力有限公司 | 正极柱和正极集流盘的组装结构、电池 |
CN114883757A (zh) | 2022-05-31 | 2022-08-09 | 远景动力技术(江苏)有限公司 | 一种圆柱电池及电子设备 |
WO2024000948A1 (zh) * | 2022-06-28 | 2024-01-04 | 湖北亿纬动力有限公司 | 盖帽组件、电池、电池模组、电池包及车辆 |
CN115377576B (zh) * | 2022-07-07 | 2023-12-15 | 江西微电新能源有限公司 | 盖板组件、制备方法、电池及电子设备 |
CN218242183U (zh) * | 2022-08-04 | 2023-01-06 | 欣旺达电动汽车电池有限公司 | 电池和电池包 |
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