CN210984547U - Negative electrode lead-out structure and energy storage monomer - Google Patents
Negative electrode lead-out structure and energy storage monomer Download PDFInfo
- Publication number
- CN210984547U CN210984547U CN201922481942.7U CN201922481942U CN210984547U CN 210984547 U CN210984547 U CN 210984547U CN 201922481942 U CN201922481942 U CN 201922481942U CN 210984547 U CN210984547 U CN 210984547U
- Authority
- CN
- China
- Prior art keywords
- negative
- negative pole
- cover plate
- current collector
- out structure
- 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.)
- Active
Links
Images
Landscapes
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a negative pole leading-out structure and an energy storage monomer, wherein the negative pole switching piece and the cover plate are both provided with central holes, and a negative pole post penetrates through the central holes of the negative pole switching piece and the cover plate and is electrically connected with the negative pole switching piece; a sealing ring is arranged between the cathode pole and the cover plate for electrical insulation; the insulating plastic block is fixed on the periphery of the cathode pole, and the lower end face of the insulating plastic block is tightly attached to the upper end face of the cover plate. The utility model discloses being connected and moulding plastics insulating plastic piece by negative pole utmost point post and apron, sealing washer and negative pole switching piece gomphosis and forming fixedly, the negative pole is drawn forth the structure and is regarded as independent cell cube, can perhaps assemble in advance when rolling up the core preparation. When the energy storage monomer is assembled, the assembly of the energy storage monomer negative pole can be completed only by welding the negative pole adapter sheet of the negative pole leading-out structure with the negative current collector, the cover plate and the tank body respectively, the assembly process is simplified, and the assembly time of the energy storage monomer is shortened.
Description
Technical Field
The utility model belongs to the technical field of electrochemistry energy storage device and specifically relates to a free negative pole of energy storage draws forth structure.
Background
With the rapid generation and development of new technologies in the fields of information technology, electronic products, automotive energy and the like, people pay more attention to the research and development of novel supercapacitors. The super capacitor is a novel energy storage device between a traditional capacitor and a rechargeable battery, has the characteristics of large current and quick charge and discharge of the capacitor and energy storage of the battery, and the capacity of the super capacitor can reach thousands of farads. Compared with the traditional capacitor, the super capacitor has higher capacity, and compared with the storage battery, the super capacitor has the advantages of high charging speed, high energy density, wide working temperature range, long cycle life and the like, has no pollution to the environment, is particularly suitable for the application field of high-frequency, high-power and high-energy charging and discharging, and has wide market demand in national strategic emerging industries such as rail transit, wind power generation, public buses, electric vehicles, smart power grids and the like. The Chinese patent 201110408634.7 discloses a cylindrical supercapacitor monomer structure, wherein one end of an upper current collector with a T-shaped cross section is connected with the upper end face of a winding core, and the other end penetrates through an upper cover to form a pole. In order to fix the upper cover, the isolation ring and the sealing ring on the pole, a C-shaped snap ring needs to be buckled above the isolation ring. When the single body is assembled, firstly winding the cell material into a winding core, and shaping and flattening; welding the upper fluid collector and the lower fluid collector at two ends of the winding core which is wound and flattened; a sealing ring, an isolating ring and a C-shaped snap ring are sequentially arranged between the upper fluid collector and the upper cover; and finally, welding and fixing the lower cover, the upper cover and the shell. The number of parts to be assembled is large, the number of assembling processes is large, and the assembling time is long.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the problems of more assembled parts and long assembling time of the conventional supercapacitor monomer, and provides a negative lead-out structure and an energy storage monomer which are reasonable in structure.
The utility model discloses the technical scheme who adopts as follows:
a negative pole leading-out structure is characterized in that a negative pole adapter plate and a cover plate are both provided with central holes, and a negative pole post penetrates through the central holes of the negative pole adapter plate and the cover plate and is electrically connected with the negative pole adapter plate; a sealing ring is arranged between the cathode pole and the cover plate for electrical insulation; the insulating plastic block is fixed on the periphery of the cathode pole, and the lower end face of the insulating plastic block is tightly attached to the upper end face of the cover plate.
As a further improvement of the above technical solution:
a circle of annular groove is formed in the outer peripheral surface of the cathode pole, and the insulating plastic block is embedded into the annular groove.
The lower part of the peripheral surface of the cathode pole is provided with a circle of annular bulge.
The outer peripheral surface of the negative electrode adapter piece is provided with a first step, and when the negative electrode adapter piece is welded on the negative current collector, the periphery of the first step is inserted into the inner diameter of the flanging of the negative current collector.
The height of the first step is smaller than that of the flanging of the negative current collector.
The negative current collector is provided with a plurality of through holes.
And the negative pole post is provided with a liquid injection hole, and the liquid injection hole is sealed by a sealing plug and an aluminum plug.
The energy storage monomer utilizing the negative electrode leading-out structure is characterized in that a winding core is arranged in a tank body, a negative current collector and a positive current collector are welded at two ends of the winding core respectively, the negative current collector is welded and fixed with a negative electrode adapter plate, the positive current collector is welded and fixed with a positive electrode cover plate, and the cover plate and the positive electrode cover plate are fixed at two ends of the tank body 1 respectively.
As a further improvement of the above technical solution:
the outer peripheral surface of the positive electrode cover plate is provided with a step, and the step is inserted into the inner diameter of the flanging of the positive current collector.
The utility model has the advantages as follows:
the utility model discloses being connected and moulding plastics insulating plastic piece by negative pole utmost point post and apron, sealing washer and negative pole switching piece gomphosis and forming fixedly, the negative pole is drawn forth the structure and is regarded as independent cell cube, can perhaps assemble in advance when rolling up the core preparation. When the energy storage monomer is assembled, the assembly of the energy storage monomer negative pole can be completed only by welding the negative pole adapter sheet of the negative pole leading-out structure with the negative current collector, the cover plate and the tank body respectively, the assembly process is simplified, and the assembly time of the energy storage monomer is shortened.
The cover plate, the negative pole adapter plate and the negative pole post in the negative pole leading-out structure are simple in structure, can be manufactured by punch forming, automatic assembling and injection molding through a manipulator, do not need manual operation in an assembling procedure, and are easy to realize automatic production.
According to the invention, the insulating plastic block is embedded into the annular groove of the cathode pole and the joint of the cover plate and the sealing ring through injection molding, so that the cover plate and the cathode pole are electrically insulated, and meanwhile, the cover plate, the sealing ring and the cathode pole are limited and fixed without using excessive fasteners, so that the material is saved.
The utility model discloses all process the step on the outer peripheral face of negative pole switching piece, apron, the less step of diameter has the guide effect, has guaranteed installation quality, is favorable to carrying out automatic equipment through the manipulator.
The utility model discloses a set up in the middle of the negative pole utmost point post and annotate the liquid hole, the height of the step of negative pole switching piece slightly is less than the turn-ups height of the negative current collection body for there is the space between negative pole switching piece and the negative current collection body, space and notes liquid hole intercommunication, electrolyte can follow the space and flow, is favorable to electrolyte to follow the water conservancy diversion hole and gets into a roll in-core circulation, shortens a roll infiltration time.
Drawings
Fig. 1 is a schematic structural diagram of the cathode lead-out structure of the present invention.
Fig. 2 is a middle sectional view of the energy storage cell after the negative electrode lead-out structure is assembled.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a perspective view of the negative current collector.
In the figure: 1. a tank body; 2. a cover plate; 3. an insulating plastic block; 4. a negative electrode post; 5. a positive electrode cover plate; 6. a negative electrode lead-out structure; 7. a negative pole switching piece; 8. a positive current collector; 9. a winding core; 10. an aluminum plug; 11. a first step; 12. a flow guide hole; 13. a seal ring; 14. a negative current collector; 15. a central through hole; 16. a central bore; 17. a liquid injection hole; 18. an annular groove; 19. an annular projection; 20. a sealing plug; 21. flanging; 22. a second step.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the negative electrode leading-out structure 6 of the present invention includes a cover plate 2, a negative electrode adapter sheet 7, a negative electrode post 4 and a sealing ring 13. The outer peripheral face lower part of negative pole post 4 is equipped with round annular bulge 19, and round annular groove 18 has been seted up on upper portion, and negative pole switching piece 7 central authorities trompil, the external diameter of annular bulge 19 is greater than the internal diameter in this hole, and the lower extreme of negative pole post 4 passes this hole, and is in the same place through welded fastening with negative pole switching piece 7, and annular bulge 19 lower surface supports the upper surface at negative pole switching piece 7, plays limiting displacement. The middle part of the cathode post 4 is positioned above the annular bulge 19 and sequentially penetrates through the sealing ring 13 and the cover plate 2, and the cover plate 2 is isolated from the cathode post 4 through the sealing ring 13 to realize electrical insulation. And an insulating plastic block 3 is injected on the peripheral surface of the cathode pole 4 above the cover plate 2. Insulating plastic piece 3 is located apron 2, sealing washer 13 and negative terminal 4's junction, and insulating plastic piece 3 inboard embedding annular groove 18 plays spacing fixed effect, need not use too much fastener, just can fix apron 2 and sealing washer 13 on negative terminal 4, save material. And a liquid injection hole 17 is formed in the middle of the cathode pole 4 and used for filling electrolyte, the lower part of the liquid injection hole 17 is sealed by a sealing plug 20, and the upper part of the liquid injection hole is provided with an aluminum plug 10 which is welded together. The simple structure of apron 2, negative pole switching piece 7 and negative pole post 4 all can be through stamping forming, and automatic equipment of rethread manipulator makes the negative pole with moulding plastics and draws out structure 6, easily realizes automated production. The cathode lead-out structure 6 is used as an independent unit body and can be assembled at the same time of manufacturing the winding core 9 or assembled in advance, so that the assembly time of the energy storage monomer is shortened.
In order to ensure the installation quality, as shown in fig. 1 and fig. 3, a first step 11 is processed on the outer peripheral surface of the lower part of the negative adapter plate 7, a ring of annular flanging 21 matched with the first step 11 is arranged on the outer edge of the negative current collector 14, and the first step 11 is inserted into the inner diameter of the flanging 21 of the negative current collector 14. The diameter of the outer peripheral surface of the negative adapter plate 7 is equal to the outer diameter of the negative current collector 14, so that the negative adapter plate and the negative current collector can be welded together conveniently through laser. The first step 11 with the smaller diameter has a guiding function, so that the negative adapter plate 7 can be conveniently inserted into the negative current collector 14, and the outer edge of the negative adapter plate 7 with the larger diameter plays a role in limiting and positioning, thereby being beneficial to automatic assembly through a manipulator. The height of first step 11 slightly is less than the height of the annular turn-ups 21 of negative current collector 14 for there is the space between negative pole adaptor piece 7 and the negative current collector 14, and the space communicates with the notes liquid hole 17 of negative pole post 4, and electrolyte can flow along the space after annotating liquid hole 17 and getting into. The lower peripheral surface of the cover plate 2 is processed with a second step 22, the second step 22 is inserted into the inner diameter of the tank body 1, and the outer periphery of the cover plate 2 is welded with the top end of the tank body 1 by laser. During the assembly of the energy storage monomer, the assembly of the energy storage monomer cathode can be completed only by respectively welding the negative adapter plate 7 of the negative lead-out structure 6 with the negative current collector 14, the cover plate 2 and the tank body 1, the number of assembly parts is small, the assembly process is simplified, and the assembly time is shortened.
As shown in fig. 2, a cylindrical winding core 9 is mounted in the cylindrical can body 1, and both end surfaces of the winding core 9 are flattened and then welded with a positive current collector 8 and a negative current collector 14, respectively. The assembled negative electrode lead-out structure 6 is connected with a negative current collector 14, and a cylindrical central hole 16 is formed inside the winding core 9. As shown in fig. 4, a central through hole 15 corresponding to the central hole 16 is formed in the center of the negative current collector 14, and when the electrolyte is injected, the central through hole 15 can guide the electrolyte into the central hole 16 of the winding core 9, thereby performing a flow guiding function. The end surface of the negative current collector 14 is further provided with a plurality of flow guide holes 12 distributed along the center in a radiation manner, and the flow guide holes 12 correspond to the end surface of the winding core 9. The arrangement of the flow guide holes 12 in the above manner facilitates editing of the continuous running track of the welding manipulator, and the flow guide holes 12 can be avoided when the negative current collector 14 is welded. Electrolyte flows to each hole on the negative current collector 14 along the gap between the negative current collector 14 and the negative adapter plate 7, the flow guide holes 12 are communicated with the end face of the winding core 9, the central through hole 15 is communicated with the central hole 16 of the winding core 9, the electrolyte can be simultaneously poured into the gap and the central hole 16 of the end face of the winding core 9, and the infiltration time of the winding core 9 is effectively shortened.
The positive current collector 8 may have the same structure as the negative current collector 14 described above, and a step is formed on the outer circumferential surface of the positive electrode lid plate 5, and the step is inserted into the inner diameter of the annular flange of the positive current collector 8. The outer peripheral surface of the positive electrode lid plate 5 and the outer peripheral surface of the positive current collector 8 are welded together by laser. The bottom periphery of the positive cover plate 5 is welded with the bottom edge of the tank body 1.
The negative pole leading-out structure 6 of the utility model is formed by embedding and connecting the negative pole post 4 with the cover plate 2, the sealing ring 13 and the negative pole switching piece 7 and fixing the injection molding insulating plastic block 3, and does not need to use too many fasteners, thereby saving materials; the cathode lead-out structure 6 can be used as an independent unit body and assembled at the same time of manufacturing the winding core 9 or in advance, so that the assembly time of the energy storage monomer is shortened.
The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.
Claims (9)
1. A negative electrode lead-out structure is characterized in that:
the negative pole adapter sheet (7) and the cover plate (2) are both provided with center holes, and the negative pole post (4) penetrates through the center holes of the negative pole adapter sheet (7) and the cover plate (2) and is electrically connected with the negative pole adapter sheet (7);
-a sealing ring (13) is arranged between the cathode pole (4) and the cover plate (2) for electrical insulation;
the insulating plastic block (3) is fixed on the periphery of the cathode pole (4), and the lower end face of the insulating plastic block (3) is tightly attached to the upper end face of the cover plate (2).
2. The negative electrode lead-out structure according to claim 1, wherein: a circle of annular groove (18) is formed in the outer peripheral surface of the cathode pole (4), and the insulating plastic block (3) is embedded into the annular groove (18).
3. The negative electrode lead-out structure according to claim 1, wherein: the lower part of the peripheral surface of the cathode pole (4) is provided with a ring of annular bulges (19).
4. The negative electrode lead-out structure according to claim 1, wherein: the outer peripheral surface of the negative electrode adapter sheet (7) is provided with a first step (11), and when the negative electrode adapter sheet (7) is welded on the negative current collector (14), the outer periphery of the first step (11) is inserted into the inner diameter of a flanging (21) of the negative current collector (14).
5. The negative electrode lead-out structure according to claim 4, wherein: the height of the first step (11) is smaller than that of a flanging (21) of the negative current collector (14).
6. The negative electrode lead-out structure according to claim 4, wherein: the negative current collector (14) is provided with a plurality of through holes.
7. The negative electrode lead-out structure according to claim 1, wherein: the negative pole post (4) is provided with a liquid injection hole (17), and the liquid injection hole (17) is internally sealed by a sealing plug (20) and an aluminum plug (10).
8. An energy storage cell using the negative electrode lead-out structure of claim 1, characterized in that: the winding core (9) is arranged in the tank body (1), the two ends of the winding core (9) are respectively welded with the negative current collector (14) and the positive current collector (8), the negative current collector (14) is welded and fixed with the negative adapter plate (7), the positive current collector (8) is welded and fixed with the positive cover plate (5), and the cover plate (2) and the positive cover plate (5) are respectively fixed at the two ends of the tank body (1).
9. An energy storage cell according to claim 8, wherein: the outer peripheral surface of the positive electrode cover plate (5) is provided with a step, and the step is inserted into the inner diameter of the flanging of the positive current collector (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481942.7U CN210984547U (en) | 2019-12-31 | 2019-12-31 | Negative electrode lead-out structure and energy storage monomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922481942.7U CN210984547U (en) | 2019-12-31 | 2019-12-31 | Negative electrode lead-out structure and energy storage monomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210984547U true CN210984547U (en) | 2020-07-10 |
Family
ID=71460355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922481942.7U Active CN210984547U (en) | 2019-12-31 | 2019-12-31 | Negative electrode lead-out structure and energy storage monomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210984547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024104A (en) * | 2021-10-25 | 2022-02-08 | 苏州创能新能源实业有限公司 | Cylinder is apron subassembly for lithium cell |
-
2019
- 2019-12-31 CN CN201922481942.7U patent/CN210984547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024104A (en) * | 2021-10-25 | 2022-02-08 | 苏州创能新能源实业有限公司 | Cylinder is apron subassembly for lithium cell |
| CN114024104B (en) * | 2021-10-25 | 2024-05-24 | 苏州创能新能源实业有限公司 | Cover plate assembly for cylindrical lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107204408B (en) | Full-lug square lithium battery and preparation method thereof | |
| CN102013513A (en) | Lithium ion power battery with bidirectional current collectors | |
| CN206711986U (en) | A kind of new cylindrical lithium battery | |
| CN101106205A (en) | A coiling lithium ion battery and its making method | |
| CN202167559U (en) | Battery with high capacity | |
| CN201478392U (en) | High-power lithium ion power battery with collecting disc | |
| CN113422140A (en) | Lithium ion cylindrical battery | |
| CN210984547U (en) | Negative electrode lead-out structure and energy storage monomer | |
| CN103579669B (en) | A kind of high-capacity cylindrical or rectangular lithium ion battery | |
| CN101582521B (en) | Coiled lithium-ion secondary battery taking winding needle as positive and negative electrodes and manufacturing method thereof | |
| CN201877530U (en) | Lithium ion power battery with bidirectional current collectors | |
| CN203386613U (en) | Cylindrical super capacitor | |
| CN210984546U (en) | Energy storage device monomer | |
| CN201877491U (en) | Novel high-capacity lithium ion battery | |
| CN212323106U (en) | Large-capacity battery capable of outputting large current | |
| CN211957731U (en) | High-capacity battery | |
| CN204067477U (en) | The positive pole combining structure of the cylindrical battery constructed by the positive pole drainage piece through improving | |
| CN207353094U (en) | Energy storage device | |
| CN107731553B (en) | Super capacitor | |
| CN202796467U (en) | Energy type supercapacitor | |
| CN201838677U (en) | Square lithium-ion power battery | |
| CN205429070U (en) | Lithium battery | |
| CN204130359U (en) | A kind of ultracapacitor | |
| CN202585600U (en) | Cover board connecting structure of power storage device | |
| CN104269280A (en) | Supercapacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |