CN219658936U - Large cylindrical battery - Google Patents
Large cylindrical battery Download PDFInfo
- Publication number
- CN219658936U CN219658936U CN202321236011.0U CN202321236011U CN219658936U CN 219658936 U CN219658936 U CN 219658936U CN 202321236011 U CN202321236011 U CN 202321236011U CN 219658936 U CN219658936 U CN 219658936U
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- CN
- China
- Prior art keywords
- cap
- current collecting
- nickel
- disc
- circular
- 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.)
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 43
- 239000010959 steel Substances 0.000 claims description 43
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 6
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The embodiment of the utility model provides a large cylindrical battery, and belongs to the technical field of batteries. The large cylindrical battery includes: a cylindrical housing; the battery cell is arranged in the cylindrical shell; the cap-shaped positive electrode current collecting disc is arranged at the top of the battery cell, and the cap peak of the cap-shaped positive electrode current collecting disc is in conductive connection with the positive electrode end of the battery cell; the negative electrode current collecting disc is arranged at the bottom of the battery cell, a copper layer surface at the top of the negative electrode current collecting disc is in conductive connection with the negative electrode end of the battery cell, and a nickel layer surface at the bottom of the negative electrode current collecting disc is in conductive connection with the bottom of the cylindrical shell; the combined cap is arranged at the top of the cylindrical shell to seal the cylindrical shell, and the top of the cap-shaped positive current collecting disc is in conductive connection with the combined cap. The large cylindrical battery can effectively reduce the internal resistance of the battery.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a large cylindrical battery.
Background
A battery is a device capable of converting chemical energy into electrical energy and storing it. The conventional cylindrical batteries are generally connected by using strip-shaped metal sheets (tabs) or bus sheets with tabs. This form of connection has the disadvantage of an excessively long transmission distance and a small conductive cross section. Therefore, the "bottleneck" phenomenon of the conventional design of the internal connection member of the cylindrical battery is abnormal when a large current is output. Therefore, there is a need for a cylindrical battery that can effectively reduce the internal resistance of the battery.
Disclosure of Invention
The embodiment of the utility model aims to provide a large cylindrical battery which can effectively reduce the internal resistance of the battery.
In order to achieve the above object, an embodiment of the present utility model provides a large cylindrical battery including:
a cylindrical housing;
the battery cell is arranged in the cylindrical shell;
the cap-shaped positive electrode current collecting disc is arranged at the top of the battery cell, and the cap peak of the cap-shaped positive electrode current collecting disc is in conductive connection with the positive electrode end of the battery cell;
the negative electrode current collecting disc is arranged at the bottom of the battery cell, a copper layer surface at the top of the negative electrode current collecting disc is in conductive connection with the negative electrode end of the battery cell, and a nickel layer surface at the bottom of the negative electrode current collecting disc is in conductive connection with the bottom of the cylindrical shell;
the combined cap is arranged at the top of the cylindrical shell to seal the cylindrical shell, and the top of the cap-shaped positive current collecting disc is in conductive connection with the combined cap.
Optionally, the cap peak of the cap-shaped positive current collecting plate is uniformly distributed with thin slits, the center of the cap-shaped positive current collecting plate is provided with a small round hole, and the cap-shaped positive current collecting plate is uniformly distributed with small holes or thin slits.
Optionally, the negative electrode current collecting disc is in a disc shape, and radial fine slits are uniformly distributed on the surface of the negative electrode current collecting disc.
Optionally, the combination cap includes:
nickel-plated steel caps;
the circular nickel-plated steel disc is arranged at the bottom of the nickel-plated steel cap and is welded with the nickel-plated steel cap;
the circular connecting aluminum sheet is arranged at the bottom of the circular nickel plating steel disc, is welded with the circular nickel plating steel disc, and is electrically connected with the top of the cap-shaped positive electrode current collecting disc;
the sealing ring is arranged on the periphery of the circular nickel-plated steel disc and the circular connecting aluminum sheet, and is connected with the top of the cylindrical shell so as to seal the cylindrical shell.
Optionally, the centers of the nickel plating steel cap, the round nickel plating steel disc and the round connecting aluminum sheet are provided with liquid injection holes.
Optionally, an explosion-proof valve is arranged on the circular connection aluminum sheet, and an explosion-proof hole is arranged at a position on the circular nickel-plated steel disc corresponding to the explosion-proof valve.
Optionally, a plurality of slots are formed in the periphery of the nickel-plated steel cap, and a plurality of salient points are punched on two sides of the slots.
Optionally, the sealing ring is made of polysulfone.
Through the technical scheme, the large cylindrical battery is provided with the cylindrical shell, the battery core can be arranged in the cylindrical shell, the cap-shaped positive current collecting disc can be arranged at the top of the battery core, and the cap peak of the cap-shaped positive current collecting disc can be in conductive connection with the positive end of the battery core. The negative electrode current collecting disc can be arranged at the bottom of the battery cell, the top of the negative electrode current collecting disc can be in conductive connection with the negative electrode end of the battery cell, and the bottom of the negative electrode current collecting disc can be in conductive connection with the bottom of the cylindrical shell. The combination cap may be disposed on top of the cylindrical housing to seal the cylindrical housing, and the cap top of the cap-shaped positive current collecting plate may be conductively connected to the combination cap. The large cylindrical battery replaces the traditional collecting plate through the cap-shaped positive electrode collecting plate, the conductive section of the large cylindrical battery is larger, the transmission distance is shorter, and the internal resistance of the large cylindrical battery can be effectively reduced.
Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, without limitation, the embodiments of the utility model. In the drawings:
fig. 1 is a cross-sectional view of a large cylindrical battery according to an embodiment of the present utility model;
fig. 2 is a cross-sectional view of a cap-shaped positive current collecting plate of a large cylindrical battery according to an embodiment of the present utility model;
fig. 3 is a top view of a cap-shaped positive current collecting plate of a large cylindrical battery according to an embodiment of the present utility model;
fig. 4 is a top view of a negative current collecting plate of a large cylindrical battery according to an embodiment of the present utility model;
fig. 5 is a sectional view of a combination cap of a large cylindrical battery according to an embodiment of the present utility model;
FIG. 6 is a cross-sectional view of a nickel plated steel cap of a large cylindrical battery according to one embodiment of the present utility model;
fig. 7 is a top view of a nickel plated steel cap of a large cylindrical battery according to one embodiment of the present utility model.
Description of the reference numerals
1. Cap type positive electrode current collecting disc 2 and combined cap
20. Nickel-plated steel cap 21 and round nickel-plated steel disc
22. Round connection aluminium sheet 23, sealing ring
3. Positive terminal 4 and battery core terminal of motor
5. Negative electrode current collecting plate 6 and cell
7. Cylindrical shell 8, liquid injection hole
9. Explosion-proof valve 10 and explosion-proof hole
11. Slot 12 and bump
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Fig. 1 is a cross-sectional view of a large cylindrical battery according to an embodiment of the present utility model. In the present utility model, the large cylindrical battery may include: cylindrical shell 7, electric core 6, negative pole current collecting plate 5, combination block 2. The battery cell 6 may be disposed within the cylindrical housing 7. The cap-shaped positive current collecting plate 1 can be arranged on the top of the battery cell, and the cap peak of the cap-shaped positive current collecting plate 1 can be in conductive connection with the positive end 3 of the battery cell 6. The negative current collecting plate 5 may be disposed at the bottom of the cell 6. The copper layer on top of the negative current collecting plate 5 can be electrically connected to the negative terminal 4 of the cell 6. The nickel layer of the bottom of the negative current collecting plate 5 can be electrically connected to the bottom of the cylindrical housing 7. The combination cap 2 may be disposed on top of the cylindrical housing 7 so that the cylindrical housing 7 may be sealed. The top of the cap-shaped positive current collecting plate 1 can be electrically connected with the combined cap 2. This cap form positive pole current collecting plate 1 of big cylindrical battery is connected with the positive end 3 of the electric core at the top of this electric core 6 electrically conducts, has replaced current cylindrical battery to pass through the mode that the piece is connected that converges, and this cap form positive pole current collecting plate 1 is connected for the piece that converges, and its electrically conductive cross-section is bigger, and the distance of transmission is shorter, can effectively reduce cylindrical battery's resistance, and this big cylindrical battery is simpler for current cylindrical battery, and its structure is simpler, equipment is also more convenient and fast.
In one embodiment of the present utility model, as shown in fig. 2 and 3, the cap peak of the cap-shaped positive current collecting plate 1 may be uniformly distributed with slits. The center of the cap-shaped positive electrode current collecting disc 1 can be provided with a small round hole, and small holes or fine slits can be uniformly distributed on the cap-shaped positive electrode current collecting disc 1, so that the cap-shaped positive electrode current collecting disc 1 can be more stably assembled in the large cylindrical battery.
In one embodiment of the present utility model, as shown in fig. 4, the anode current collecting plate 5 may be in a shape of a circular plate, and radial slits may be uniformly distributed on the surface of the anode current collecting plate 5, so that the anode current collecting plate 5 can better perform a returning action.
In one embodiment of the present utility model, as shown in fig. 5, the combination cap 2 may include: a nickel-plated steel cap 20, a circular nickel-plated steel disc 21, a circular connecting aluminum sheet 22 and a sealing ring 23. The nickel plated steel cap 20 may be in contact with the outside, and the circular nickel plated steel disk 21 may be disposed at the bottom of the nickel plated steel cap 20 and may be welded with the nickel plated steel cap 20. The circular connection aluminum sheet 22 may be disposed at the bottom of the circular nickel plated steel plate 21 and may be welded with the circular nickel plated steel plate 21. The bottom of the circular connection aluminum sheet 22 may be conductively connected to the cap top of the cap-shaped positive current collecting plate 1. The sealing ring 23 may be provided at the outer periphery of the circular nickel plated steel disc 21 and the circular connection aluminum sheet 22 to seal the circular nickel plated steel disc 21 and the circular connection aluminum sheet 22, and the sealing ring 23 may be connected with the top of the cylindrical housing 7 so that the cylindrical housing 7 may be sealed.
In one embodiment of the present utility model, as shown in fig. 5 and 7, a liquid injection hole 8 may be opened at the center of the nickel plated steel cap 20, the circular nickel plated steel plate 21 and the circular connection aluminum sheet 22. When the large cylindrical battery is assembled, the large cylindrical battery can be injected with liquid through the liquid injection hole 8, and opening formation can be performed after the liquid injection is completed. After formation, the liquid injection hole 8 can be riveted by an aluminum pin and welded by laser welding, so that the structural assembly of the large cylindrical battery can be completed.
In one embodiment of the present utility model, as shown in fig. 5, an explosion-proof valve 9 may be opened on the circular connection aluminum sheet 21. Explosion protection holes 10 may be formed in the circular nickel plated steel plate 21 at positions corresponding to the explosion protection valves 9. The explosion-proof valve 9 can prevent explosion of the expansion valve inside the large cylindrical battery, and the explosion-proof hole 10 can be used for giving way to the explosion-proof valve 9. The explosion-proof holes 10 may be located in one-to-one correspondence with the explosion-proof valves 9.
In one embodiment of the utility model, as shown in fig. 7, the nickel plated steel cap 20 may be provided with a plurality of slots 11 at its periphery. A plurality of bumps 12 may be punched on both sides of the slot 11. The slot 11 may make the nickel plated steel cap 20 more stable in the large cylindrical battery. The bump 12 can improve resistance welding performance so that the nickel plated steel cap 20 can be better welded on the circular nickel plated steel disk 21.
In one embodiment of the present utility model, the material of the seal ring 23 may be polysulfone. The polysulfone seal ring has the characteristics of high strength, high transparency, good dimensional stability, no toxicity, high temperature resistance and the like, and can effectively seal the cylindrical shell 7.
Through the technical scheme, the large cylindrical battery is provided with the cylindrical shell, the battery core can be arranged in the cylindrical shell, the cap-shaped positive current collecting disc can be arranged at the top of the battery core, and the cap peak of the cap-shaped positive current collecting disc can be in conductive connection with the positive end of the battery core. The negative electrode current collecting disc can be arranged at the bottom of the battery cell, the top of the negative electrode current collecting disc can be in conductive connection with the negative electrode end of the battery cell, and the bottom of the negative electrode current collecting disc can be in conductive connection with the bottom of the cylindrical shell. The combination cap may be disposed on top of the cylindrical housing to seal the cylindrical housing, and the cap top of the cap-shaped positive current collecting plate may be conductively connected to the combination cap. The large cylindrical battery replaces the traditional collecting plate through the cap-shaped positive electrode collecting plate, the conductive section of the large cylindrical battery is larger, the transmission distance is shorter, and the internal resistance of the large cylindrical battery can be effectively reduced.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.
Claims (8)
1. A large cylindrical battery, characterized in that the large cylindrical battery comprises:
a cylindrical housing (7);
the battery cell (6) is arranged in the cylindrical shell (7);
the cap-shaped positive current collecting disc (1) is arranged at the top of the battery cell (6), and the cap peak of the cap-shaped positive current collecting disc (1) is in conductive connection with the battery cell positive electrode end (3) of the battery cell (6);
the negative electrode current collecting disc (5) is arranged at the bottom of the electric core (6), a copper layer surface at the top of the negative electrode current collecting disc (5) is in conductive connection with a negative electrode end (4) of the electric core (6), and a nickel layer surface at the bottom of the negative electrode current collecting disc (5) is in conductive connection with the bottom of the cylindrical shell (7);
the combined cap (2) is arranged at the top of the cylindrical shell (7) to seal the cylindrical shell (7), and the cap top of the cap-shaped positive current collecting disc (1) is in conductive connection with the combined cap (2).
2. The large cylindrical battery according to claim 1, wherein fine slits are uniformly distributed on the cap peak of the cap-shaped positive current collecting plate (1), a small round hole is formed in the center of the cap-shaped positive current collecting plate (1), and small holes or fine slits are uniformly distributed on the cap-shaped positive current collecting plate (1).
3. The large cylindrical battery according to claim 1, wherein the negative current collecting plate (5) is in a disc shape, and radial slits are uniformly distributed on the surface.
4. The large cylindrical battery according to claim 1, characterized in that the combined cap (2) comprises:
a nickel-plated steel cap (20);
the circular nickel-plated steel disc (21) is arranged at the bottom of the nickel-plated steel cap (20) and welded with the nickel-plated steel cap (20);
the circular connecting aluminum sheet (22) is arranged at the bottom of the circular nickel plating steel disc (21) and welded with the circular nickel plating steel disc (21), and the bottom of the circular connecting aluminum sheet (22) is in conductive connection with the top of the cap-shaped positive electrode current collecting disc (1);
and the sealing ring (23) is arranged at the periphery of the circular nickel-plated steel disc (21) and the circular connecting aluminum sheet (22) and is connected with the top of the cylindrical shell (7) so as to seal the cylindrical shell (7).
5. The large cylindrical battery according to claim 4, wherein the centers of the nickel-plated steel cap (20), the circular nickel-plated steel disk (21) and the circular connection aluminum sheet (22) are provided with a liquid injection hole (8).
6. The large cylindrical battery according to claim 4, wherein the explosion-proof valve (9) is arranged on the circular connection aluminum sheet (22), and the explosion-proof hole (10) is arranged on the circular nickel-plated steel disc (21) at a position corresponding to the explosion-proof valve (9).
7. The large cylindrical battery according to claim 4, wherein the nickel plated steel cap (20) is provided with a plurality of slits (11) at the periphery thereof, and a plurality of bumps (12) are punched at both sides of the slits (11).
8. The large cylindrical battery according to claim 4, wherein the sealing ring (23) is made of polysulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321236011.0U CN219658936U (en) | 2023-05-19 | 2023-05-19 | Large cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321236011.0U CN219658936U (en) | 2023-05-19 | 2023-05-19 | Large cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658936U true CN219658936U (en) | 2023-09-08 |
Family
ID=87854426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321236011.0U Active CN219658936U (en) | 2023-05-19 | 2023-05-19 | Large cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748026A (en) * | 2024-02-20 | 2024-03-22 | 新乡市旭兴电源科技有限公司 | Cylindrical battery cover plate and automatic production equipment thereof |
-
2023
- 2023-05-19 CN CN202321236011.0U patent/CN219658936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748026A (en) * | 2024-02-20 | 2024-03-22 | 新乡市旭兴电源科技有限公司 | Cylindrical battery cover plate and automatic production equipment thereof |
| CN117748026B (en) * | 2024-02-20 | 2024-05-10 | 新乡市旭兴电源科技有限公司 | Automatic production equipment for cylindrical battery cover plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |