CN222300808U - Sodium-electricity steel shell large cylinder high-multiplying power battery - Google Patents
Sodium-electricity steel shell large cylinder high-multiplying power battery Download PDFInfo
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- CN222300808U CN222300808U CN202420460288.XU CN202420460288U CN222300808U CN 222300808 U CN222300808 U CN 222300808U CN 202420460288 U CN202420460288 U CN 202420460288U CN 222300808 U CN222300808 U CN 222300808U
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- battery
- shell
- negative electrode
- cap
- positive electrode
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- 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
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Abstract
The utility model discloses a sodium-electricity steel shell large-cylinder high-multiplying-power battery which comprises a battery shell and a battery core arranged in the battery shell, wherein a positive electrode flow guide end face and a negative electrode flow guide end face are respectively arranged on two sides of the battery core, a positive electrode flow collecting disc and a negative electrode flow collecting disc which correspond to each other are respectively arranged on the positive electrode flow guide end face and the negative electrode flow guide end face, the battery shell is a steel shell, a first opening and a second opening are respectively formed in the top and the bottom of the battery shell, a cover cap is arranged at the first opening and is in insulating connection with the battery shell, the cover cap is connected with the positive electrode flow collecting disc, a negative plate is arranged at the second opening and is in insulating connection with the battery shell, the negative plate is connected with the negative electrode flow collecting disc, and the cover cap and the negative plate are made of aluminum materials. The top and the cap of the battery shell adopt a conventional mechanical sealing mode, and sealing is completed by extruding the sealing ring. The positive electrode current collecting disc is connected with the cap by laser welding and led out. The bottom of the battery shell adopts steel shell aluminum conversion, the middle is separated by an insulating layer, and the negative plate is connected with the negative current collecting disc by laser penetration welding. The utility model utilizes multiple laser welding, has good sealing performance and welding firmness, large welding area, short distance and strong overcurrent capacity, and meets the requirement of high-multiplying power batteries.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a sodium-electricity steel shell large-cylinder high-rate battery.
Background
With the development of industry, the application scene of lithium (sodium) ion batteries is wider and wider. With the development of new energy industry, lithium (sodium) ions permeate into various fields. The requirements for the battery are comprehensive indexes such as capacity, service life, safety, environmental adaptation performance, model, multiplying power and the like. The cylindrical battery has high production efficiency and high safety due to low production cost, and is widely applied to various fields such as energy storage, power supply, electric vehicles and the like.
Cylindrical batteries are conventionally manufactured in a monopolar ear, bipolar ear, multipolar ear and electrodeless ear structure in the market due to different sizes and different capacities, the positive electrode is generally welded at the top, and the negative electrode is generally welded at the bottom. For cylindrical batteries, copper needle resistance welding is used to connect the winding core with the steel shell for welding, and the process is simple and becomes a conventional mode. However, in the scheme, only one overcurrent point exists, the overcurrent capacity is low, and the requirement of high-current charge and discharge cannot be met. Therefore, how to design a battery to improve the rate performance of the battery and ensure the sealing stability is a problem to be solved.
Disclosure of utility model
The utility model aims to provide a sodium-electricity steel shell large-cylinder high-rate battery for solving the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The sodium-electricity steel shell large-cylinder high-multiplying-power battery comprises a battery shell and a battery core arranged in the battery shell, wherein the two sides of the battery core are respectively provided with a positive electrode flow guide end face and a negative electrode flow guide end face, the positive electrode flow guide end face and the negative electrode flow guide end face are respectively provided with a positive electrode current collecting disc and a negative electrode current collecting disc which correspond to each other, the battery shell is a steel shell, a first opening and a second opening are respectively formed in the top and the bottom of the battery shell, a cover cap is arranged at the first opening, the cover cap is in insulating connection with the battery shell, the cover cap is connected with the positive electrode current collecting disc, a negative electrode plate is arranged at the second opening, the negative electrode plate is in insulating connection with the battery shell, the negative electrode plate is connected with the negative electrode current collecting disc, and the cover cap and the negative electrode plate are made of aluminum materials.
Preferably, the cap and the positive electrode current collecting disc are welded by laser penetration, and the negative electrode plate and the negative electrode current collecting disc are welded by laser penetration.
Preferably, a protrusion is arranged at the center of the cap, the edge of the protrusion is welded with the positive electrode current collecting disc through laser penetration, and the outer edge arranged outside the edge is welded with the positive electrode current collecting disc through laser penetration.
Preferably, the first opening is larger than the second opening.
Preferably, a sealing ring is arranged at the edge of the cover cap, and the cover cap is in sealing connection with the battery shell.
Preferably, an insulating layer is provided between the battery case and the negative electrode plate.
Preferably, the cap is provided with an explosion-proof valve.
The utility model has the beneficial effects that the top of the battery shell and the cap adopt a conventional mechanical sealing mode, and sealing are completed by extruding the sealing ring. The positive electrode current collecting disc is connected with the cap through twice laser welding and led out. The bottom of the battery shell adopts steel shell aluminum conversion, the middle is separated by an insulating layer, and the negative plate is connected with the negative current collecting disc by laser penetration welding. The utility model utilizes multiple laser welding, has good sealing performance and welding firmness, large welding area, short distance and strong overcurrent capacity, and meets the requirement of high-multiplying power batteries.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic elevational view of the present utility model;
FIG. 4 is a schematic rear view of the present utility model;
The battery comprises a battery shell 1, a first opening 11, a second opening 12, a cap 2, a bulge 21, a rim 211, an outer rim 212, a negative plate 3, an insulating layer 4, an explosion-proof valve 5 and a sealing ring 6.
Detailed Description
The technical scheme of the application is further described in detail below with reference to the specific embodiments.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "top", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 4, the utility model provides a sodium-electricity steel shell large-cylinder high-multiplying power battery, which comprises a battery shell 1 and a battery core (not shown) arranged in the battery shell 1, wherein both sides of the battery core are respectively provided with a positive electrode flow guide end face and a negative electrode flow guide end face, and the positive electrode flow guide end face and the negative electrode flow guide end face are respectively provided with a positive electrode flow collecting disc (not shown) and a negative electrode flow collecting disc (not shown) which are corresponding. The battery cell, the positive electrode current collecting disc and the negative electrode current collecting disc are all common structures in the field, and the aim of realizing functions is achieved.
Wherein, battery case 1 is the steel shell of material for steel, and first opening 11 and second opening 12 have been seted up respectively to battery case 1 top and bottom. Wherein, first opening 11 department is provided with block 2, and block 2 and battery case 1 insulation are connected, and block 2 and anodal mass flow dish pass through laser penetration welding. The second opening 12 is provided with a negative plate 3, the negative plate 3 is connected with the battery shell 1 in an insulating way, and the negative plate 3 and the negative current collecting disc are welded through laser penetration. The cap 2 and the negative plate 3 are made of aluminum materials.
Further, a protrusion 21 is arranged at the center of the cap 2, the edge 211 of the protrusion 21 and the positive electrode current collecting disc are welded for the first time through laser penetration, an outer edge 212 is arranged outside the edge 211 of the protrusion 21, and one circle of the outer edge 212 and the positive electrode current collecting disc are welded for the second time through laser penetration, so that the positive electrode is led out. The cap 2 is connected with the positive current collecting disc, and the negative plate 3 is connected with the negative current collecting disc by aluminum and aluminum welding, so that the sealing performance and the welding firmness are good. Through multiple laser welding, the welding area is large, and the current flow path is increased, so that the overcurrent capacity of the battery is improved, and the high-rate battery requirement is met.
The first opening 11 is larger than the second opening 12. An insulating layer 4 is provided between the battery case 1 and the negative electrode plate 3. The edge of the cap 2 is provided with a sealing ring 6, and the cap 2 is in sealing connection with the battery shell 1. The battery shell 1 and the cap 2 adopt a conventional mechanical sealing mode, namely sealing and sealing are completed by extruding the sealing ring 6.
Further, an explosion-proof valve 5 is provided on the cap 2 to ensure safe and stable operation of the battery.
The top of the battery shell 1 and the cap 2 adopt a conventional mechanical sealing mode, and sealing is completed by extruding a sealing ring. The positive current collecting disc is connected with the cap 2 through laser welding and led out. The bottom of the battery shell 1 adopts steel shell aluminum conversion, the middle is separated by an insulating layer, and the negative plate 3 is connected with a negative current collecting disc by laser penetration welding. The utility model utilizes multiple laser welding, has good sealing performance and welding firmness, large welding area, short distance and strong overcurrent capacity, and meets the requirement of high-multiplying power batteries.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420460288.XU CN222300808U (en) | 2024-03-11 | 2024-03-11 | Sodium-electricity steel shell large cylinder high-multiplying power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420460288.XU CN222300808U (en) | 2024-03-11 | 2024-03-11 | Sodium-electricity steel shell large cylinder high-multiplying power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222300808U true CN222300808U (en) | 2025-01-03 |
Family
ID=93972916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420460288.XU Active CN222300808U (en) | 2024-03-11 | 2024-03-11 | Sodium-electricity steel shell large cylinder high-multiplying power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222300808U (en) |
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2024
- 2024-03-11 CN CN202420460288.XU patent/CN222300808U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sodium ion steel can high rate cylindrical battery Granted publication date: 20250103 Pledgee: Industrial and Commercial Bank of China Limited Jiaxing Nanhu Branch Pledgor: Zhejiang Hu Na Energy Co.,Ltd. Registration number: Y2025980034831 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 314000 Zhejiang Province Jiaxing City Nanhu District Qixing Street No. 7 Yongxing Road Patentee after: Zhejiang Dangzhuo Energy Technology Co., Ltd. Country or region after: China Address before: 314000 Zhejiang Province Jiaxing City Nanhu District Qixing Street No. 111 Qixing Road Building 1 Room 576 Patentee before: Zhejiang Hu Na Energy Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |