CN217485562U - Large cylindrical battery structure - Google Patents
Large cylindrical battery structure Download PDFInfo
- Publication number
- CN217485562U CN217485562U CN202221239321.3U CN202221239321U CN217485562U CN 217485562 U CN217485562 U CN 217485562U CN 202221239321 U CN202221239321 U CN 202221239321U CN 217485562 U CN217485562 U CN 217485562U
- Authority
- CN
- China
- Prior art keywords
- current collecting
- aluminum shell
- hollow tube
- collecting disc
- negative
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Images
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a large cylindrical battery structure, a negative current collecting disc is fixed at the top of an electric core, a hollow tube is arranged in the electric core, a channel is arranged in the hollow tube, the lower end of the hollow tube is fixedly connected with an aluminum shell, the bottom of the aluminum shell is provided with a through hole communicated with the channel, the negative current collecting disc is penetrated through the upper end of the hollow tube, and the hollow tube is not contacted with the negative current collecting disc; the anode pole is fixed at the top end of the hollow tube; the negative end cover is fixed on the negative current collecting disc and is in insulated connection with the positive pole and the aluminum shell so as to completely seal the battery cell; the arrangement of the structure ensures that the whole battery structure is hollow, air flow can circulate in the battery hollow tube, and the battery hollow tube has excellent heat dissipation effect; in the use, can be through the mode with hollow tube connecting tube, be connected in order to realize initiatively rising temperature and cooling with heating or refrigeration plant, improve the application temperature range of battery, make the battery can be applicable to various operating modes.
Description
Technical Field
The utility model relates to a battery production technical field especially relates to a big cylinder battery structure.
Background
With the advocation of environmental protection concepts, the technology in the field of new energy is rapidly developed, and particularly, the development of electric automobiles is very rapid; along with this, batteries for supplying power to electric vehicles have been continuously developed, and the structure thereof has been continuously improved, and the battery technology has become more important.
The large cylindrical battery has a large diameter and high capacity, is easy to generate heat aggregation in use, and is easy to generate heat in high-rate use, so that good heat dissipation cannot be realized; therefore, a battery structure having an excellent heat dissipation effect is urgently required.
The utility model discloses a current utility model patent of grant publication No. CN205846030U discloses a battery block structure and has battery of this block, including the block body, the protrusion of block body downside is equipped with the heat pipe, the heat pipe is the sealed hollow tube in bottom, the heat pipe with be equipped with the through-hole on the contact surface of block body. The heat dissipation effect is better, and the heat conduction pipe is made of material with good heat conduction performance, effectively prevents the potential safety hazard that the temperature rises and appears because of excessive heat accumulated in the battery. Alright direct through-hole through the heat pipe carries out temperature detection and control, convenient operation.
In the technical scheme of the patent, the heat is transferred by adopting a mode of arranging the heat conduction pipe so as to dissipate heat into the air, but the mode is passive heat dissipation, and the heat is easy to gather in the through hole of the heat conduction pipe due to the sealing of the bottom of the heat conduction pipe, so that the heat diffusion efficiency is low, and the overall heat dissipation effect is not ideal; secondly, when the battery is used in a low-temperature environment, the structure is not beneficial to heating the battery, and the applicable temperature range of the battery is small.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can realize high-efficient radiating big cylinder battery structure.
The technical scheme of the utility model is realized like this: the utility model provides a large cylindrical battery structure, which comprises an electric core, an aluminum shell, an anode current collecting disc and a cathode current collecting disc, wherein,
the battery cell is arranged in the aluminum shell;
the positive current collecting disc is fixed at the bottom of the battery cell and is fixedly connected with the aluminum shell;
the negative current collecting plate is fixed on the top of the battery cell;
also comprises a hollow tube, an anode pole and a cathode end cover, wherein,
a channel is arranged in the hollow tube, the hollow tube is arranged in the middle of the battery cell, the lower end of the hollow tube is fixedly connected with the aluminum shell, a through hole communicated with the channel is formed in the bottom of the aluminum shell, the upper end of the hollow tube penetrates through the negative current collecting disc, and the hollow tube is not in contact with the negative current collecting disc;
the positive pole is fixed at the top end of the hollow pipe;
the negative end cover is fixed on the negative current collecting plate and is in insulated connection with the positive pole and the aluminum shell so as to completely seal the battery cell.
On the basis of the technical scheme, preferably, the positive current collecting disc is in interference fit with the aluminum shell, and the contact surface of the positive current collecting disc and the aluminum shell is welded.
On the basis of the technical scheme, the anode end cover is preferably in interference fit with the anode current collecting disc, and the contact surface of the anode end cover and the anode current collecting disc is welded.
On the basis of the above technical solution, preferably, the insulation device further comprises a first insulation ring and a second insulation ring, wherein,
the first insulating ring is fixed on the negative end cover and isolates the negative end cover from the aluminum shell;
the second insulating ring is fixed in the middle position of the anode pole and the cathode end cover and separates the anode pole and the cathode end cover.
On the basis of the above technical scheme, preferably, the aluminum shell further comprises a sealing ring, the sealing ring is sleeved on the peripheral portion of the first insulating ring, the top edge of the aluminum shell is rolled towards the middle portion to wrap the sealing ring and abuts against the first insulating ring, and the sealing ring seals the middle holes of the aluminum shell and the first insulating ring.
On the basis of the above technical solution, preferably, the positive pole is an annular plate, a circumferential portion of the positive pole is provided with an annular first groove, and the second insulating ring is embedded in the first groove.
On the basis of the above technical solution, preferably, the second insulating ring is annular, and a circumferential portion of the second insulating ring is provided with an annular second groove, an inner ring side of the second insulating ring abuts against the groove, and the second groove of the second insulating ring is connected with the negative end cap in an embedded manner.
On the basis of the above technical solution, preferably, the anode current collecting plate includes a contact plate and a limiting cylinder, wherein,
the contact plate is fixedly connected with the battery core, the middle part of the contact plate is provided with an inner hole for the hollow pipe to pass through, and the diameter of the inner hole is larger than that of the hollow pipe;
the limiting cylinder is fixed on the contact plate, the limiting cylinder is a circular cylinder and is concentric with the inner hole, and the contact plate and the limiting cylinder are both abutted against the negative end cover.
The utility model discloses a big cylinder battery structure has following beneficial effect for prior art:
(1) the battery is characterized in that a hollow tube is arranged in the battery core, the hollow tube is through from top to bottom, the lower end of the hollow tube is connected with the aluminum shell and the positive current collecting disc, the upper end of the hollow tube is provided with the positive pole column, and the positive pole column is insulated from the negative end cover, so that the whole battery structure is hollow, airflow can circulate from a channel of the hollow tube of the battery, and the battery has an excellent heat dissipation effect; in the use, can be through the mode with hollow tube connecting tube, be connected in order to realize the BMS accuse temperature with heating or refrigeration plant, through the control mode of initiative intensification and cooling, make the battery can be applicable to various operating modes, improve the application temperature scope of battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a large cylindrical battery structure of the present invention;
fig. 2 is a longitudinal section structure diagram of the large cylindrical battery structure of the present invention;
fig. 3 is an exploded view of the large cylindrical battery structure of the present invention;
fig. 4 is a structural view of the split structure of the positive pole post and the second insulating ring of the large cylindrical battery structure of the present invention;
fig. 5 is a structural diagram of a negative current collecting plate, a negative end cover and a first insulating ring of the large cylindrical battery structure of the present invention;
fig. 6 is a structural diagram of the aluminum shell of the large cylindrical battery structure of the present invention without curling.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1-6, the utility model discloses a big cylinder battery structure, include: electric core 1, aluminum hull 2, anodal current collector dish 3, negative pole current collector dish 4, hollow tube 5, anodal utmost point post 6, negative pole end cover 7, first insulating circle 8, second insulating circle 9 and sealing washer 10.
The battery comprises a battery core 1, an aluminum shell 2, an anode current collecting disc 3 and a cathode current collecting disc 4, wherein the battery core 1, the aluminum shell 2, the anode current collecting disc 3 and the cathode current collecting disc 4 are conventional structures of batteries, the aluminum shell 2 is a cylindrical barrel with an opening at the top, and the battery core 1 is arranged inside the aluminum shell 2; the positive current collecting disc 3 is fixed at the bottom of the battery core 1, and the positive current collecting disc 3 is fixedly connected with the aluminum shell 2; the negative current collecting plate 4 is fixed on the top of the battery core 1; the lithium battery cell further comprises a hollow tube 5, an anode pole 6 and a cathode end cover 7, wherein a channel 501 is arranged inside the hollow tube 5, the hollow tube 5 is arranged in the middle of the battery cell 1, the lower end of the hollow tube 5 is fixedly connected with the aluminum shell 2, a through hole 201 communicated with the channel 501 is formed in the bottom of the aluminum shell 2, the upper end of the hollow tube 5 penetrates through the cathode current collecting disc 4, and the hollow tube 5 is not in contact with the cathode current collecting disc 4; the anode pole 6 is fixed at the top end of the hollow tube 5; the negative end cover 7 is fixed on the negative current collecting disc 4, and the negative end cover 7 is in insulated connection with the positive pole 6 and the aluminum shell 2 so as to completely seal the electric core 1; the setting of above-mentioned structure, make this battery wholly present cavity column structure, the heat that this structure made battery work produce not only can dispel the heat through aluminum-clad 2, can also diffuse through hollow tube 5, 5 two of hollow tube are penetrating, the radiating effect is better, and 5 accessible pipe connections of hollow tube are to heating or refrigeration plant, this setting enables the battery and realizes initiative heat dissipation, and can heat in order to adapt to low temperature environment, improve the applicable temperature range of this battery, detection module such as temperature sensor still can install additional in hollow tube 5, with the operating mode of real-time detection battery.
In this embodiment, as a preferable mode, the positive current collecting disc 3 is in interference fit with the aluminum casing 2, and the contact surface of the positive current collecting disc 3 and the aluminum casing 2 is welded; for improving the stability of the battery as a whole.
In this embodiment, as a preferable mode, the anode end cap 7 is in interference fit with the anode current collecting plate 4, and the contact surface of the anode end cap 7 and the anode current collecting plate 4 is welded; for improving the stability of the battery as a whole.
In this embodiment, as a preferable mode, the first insulating ring 8 is fixed on the negative end cap 7, and the first insulating ring 8 separates the negative end cap 7 from the aluminum case 2; the second insulating ring 9 is fixed in the middle of the anode pole 6 and the cathode end cover 7 and separates the anode pole 6 and the cathode end cover; the first insulating ring 8 and the second insulating ring 9 are insulating members of the battery to prevent the positive and negative electrode connections from causing a short circuit.
In this embodiment, as a preferable mode, the sealing ring 10 is sleeved on the periphery of the first insulating ring 8, the top edge of the aluminum shell 2 is rolled towards the middle to wrap the sealing ring 10 and abuts against the first insulating ring 8, and the sealing ring 10 seals the middle hole of the aluminum shell 2 and the first insulating ring 8; the sealing ring 10 is used to further improve the sealing performance of the battery and prevent leakage.
In the present embodiment, as a preferable mode, the positive electrode post 6 is an annular plate, an annular first groove 601 is provided on the periphery of the positive electrode post 6, and the second insulating ring 9 is fitted in the first groove 601; the structure is convenient to connect the components, and the sealing performance is good.
In this embodiment, as a preferable mode, the second insulating ring 9 is annular, and an annular second groove 901 is provided on the circumference of the second insulating ring 9, the inner ring side of the second insulating ring 9 abuts against the groove 601, and the second groove 901 of the second insulating ring 9 is connected to the negative end cap 7 in a fitting manner; the structure is convenient to connect the components, and the sealing performance is good.
In this embodiment, as a preferable mode, the negative current collecting plate 4 includes a contact plate 401 and a limiting cylinder 402, where the contact plate 401 is fixedly connected to the battery core 1, an inner hole 4011 through which the hollow tube 5 passes is provided in the middle of the contact plate 401, and the diameter of the inner hole 4011 is greater than that of the hollow tube 5, and this structure is used to prevent the hollow tube 5 from touching the negative current collecting plate 4 to cause a short circuit; spacing section of thick bamboo 402 is fixed on contact plate 401, and spacing section of thick bamboo 402 is a circular section of thick bamboo and concentric with hole 4011, and contact plate 401 and spacing section of thick bamboo 402 all support and hold negative pole end cover 7, and this structure can provide sufficient support for negative pole end cover 7 to improve the overall stability of battery.
The method comprises the following specific implementation steps:
in the battery, an electric core 1 is a full polar lug ring column electric core, an aluminum shell 2 and a hollow tube 5 are fixedly connected into an integral structure, the electric core 1 is flatly rubbed, an anode is subjected to laser spot welding with an anode current collecting disc 3, a cathode current collecting disc 4 is subjected to laser spot welding with a cathode of the electric core 1, a cathode end cover 7 is heated and then subjected to pressure interference fit with the cathode current collecting disc 4, then ultrasonic welding is performed, an anode polar column 6 is installed at the top end of the hollow tube 5, the cathode end cover 7 is in insulation connection and sealing with the anode polar column 6 through a second insulation ring 9, a sealing ring 10 is sleeved and matched with a first insulation ring 8, then the anode current collecting disc 3 and the cathode current collecting disc 2 are sleeved and matched on the cathode end cover 7, after the components are connected, the aluminum shell 2 is heated, the components are pressed into the aluminum shell 2, the anode current collecting disc 3 is in interference fit with the aluminum shell 2, after the components are installed in place, the joint of the anode current collecting disc 3 and the aluminum shell 2 is welded through ultrasonic welding, then the sealing ring 10 is wrapped in a top edge of the aluminum shell 2 through a beading curling process, the sealing effect is achieved by abutting against the first insulating ring 8, and finally the hollow pipe 5 and the anode pole 6 are welded by laser to achieve the integral sealing of the battery; so, just formed the battery structure of cavity form, the air current can circulate in the middle part of the battery, the effectual radiating effect who improves the battery.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A large cylindrical battery structure comprises a battery core (1), an aluminum shell (2), a positive current collecting plate (3) and a negative current collecting plate (4), wherein,
the aluminum shell (2) is a cylindrical barrel with an opening at the top, and the battery cell (1) is arranged inside the aluminum shell (2);
the positive current collecting disc (3) is fixed at the bottom of the battery cell (1), and the positive current collecting disc (3) is fixedly connected with the aluminum shell (2);
the negative current collecting disc (4) is fixed on the top of the battery core (1);
the method is characterized in that: also comprises a hollow pipe (5), an anode pole (6) and a cathode end cover (7), wherein,
a channel (501) is arranged in the hollow pipe (5), the hollow pipe (5) is arranged in the middle of the battery core (1), the lower end of the hollow pipe (5) is fixedly connected with the aluminum shell (2), a through hole (201) communicated with the channel (501) is formed in the bottom of the aluminum shell (2), the upper end of the hollow pipe (5) penetrates through the negative current collecting disc (4), and the hollow pipe (5) is not in contact with the negative current collecting disc (4);
the anode pole (6) is fixed at the top end of the hollow tube (5);
the negative end cover (7) is fixed on the negative current collecting disc (4), and the negative end cover (7) is in insulation connection with the positive pole post (6) and the aluminum shell (2) so as to completely seal the battery cell (1).
2. The large cylindrical battery structure of claim 1, wherein: the positive current collecting disc (3) is in interference fit with the aluminum shell (2), and the contact surface of the positive current collecting disc (3) and the aluminum shell (2) is welded.
3. The large cylindrical battery structure of claim 1, wherein: the negative electrode end cover (7) is in interference fit with the negative electrode current collecting disc (4), and the contact surface of the negative electrode end cover (7) and the negative electrode current collecting disc (4) is welded.
4. A large cylindrical battery structure according to any one of claims 1 to 3, wherein: also comprises a first insulating ring (8) and a second insulating ring (9), wherein,
the first insulating ring (8) is fixed on the negative end cover (7), and the negative end cover (7) is isolated from the aluminum shell (2) by the first insulating ring (8);
the second insulating ring (9) is fixed in the middle of the anode pole (6) and the cathode end cover (7) and separates the anode pole from the cathode pole.
5. The large cylindrical battery structure of claim 4, wherein: the sealing ring is characterized by further comprising a sealing ring (10), the sealing ring (10) is sleeved on the periphery of the first insulating ring (8), the top edge of the aluminum shell (2) is turned towards the middle to wrap the sealing ring (10) and abuts against the first insulating ring (8), and the sealing ring (10) seals the middle holes of the aluminum shell (2) and the first insulating ring (8).
6. The large cylindrical battery structure of claim 5, wherein: the positive pole column (6) is an annular plate, an annular first groove (601) is formed in the periphery of the positive pole column (6), and the second insulating ring (9) is embedded in the first groove (601).
7. The large cylindrical battery structure of claim 6, wherein: the second insulating ring (9) is annular, an annular second groove (901) is formed in the periphery of the second insulating ring (9), the inner ring side of the second insulating ring (9) abuts against the groove (601), and the second groove (901) of the second insulating ring (9) is connected with the negative end cover (7) in an embedded mode.
8. The large cylindrical battery structure of claim 7, wherein: the anode current collecting plate (4) comprises a contact plate (401) and a limiting cylinder (402), wherein,
the contact plate (401) is fixedly connected with the battery core (1), an inner hole (4011) for the hollow tube (5) to pass through is formed in the middle of the contact plate (401), and the diameter of the inner hole (4011) is larger than that of the hollow tube (5);
the limiting cylinder (402) is fixed on the contact plate (401), the limiting cylinder (402) is a circular cylinder and is concentric with the inner hole (4011), and the contact plate (401) and the limiting cylinder (402) are both abutted against the negative end cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239321.3U CN217485562U (en) | 2022-05-23 | 2022-05-23 | Large cylindrical battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221239321.3U CN217485562U (en) | 2022-05-23 | 2022-05-23 | Large cylindrical battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217485562U true CN217485562U (en) | 2022-09-23 |
Family
ID=83311617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221239321.3U Active CN217485562U (en) | 2022-05-23 | 2022-05-23 | Large cylindrical battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217485562U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115582620A (en) * | 2022-11-23 | 2023-01-10 | 深圳市中基自动化股份有限公司 | Full-lug large-cylinder battery welding equipment |
| CN115798942A (en) * | 2022-12-16 | 2023-03-14 | 南通江海储能技术有限公司 | High-sealing type bolt type lithium ion capacitor |
| CN115863891A (en) * | 2023-01-05 | 2023-03-28 | 湖南德赛电池有限公司 | Battery case and battery |
-
2022
- 2022-05-23 CN CN202221239321.3U patent/CN217485562U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115582620A (en) * | 2022-11-23 | 2023-01-10 | 深圳市中基自动化股份有限公司 | Full-lug large-cylinder battery welding equipment |
| CN115582620B (en) * | 2022-11-23 | 2023-03-07 | 深圳市中基自动化股份有限公司 | Full-lug large-cylinder battery welding equipment |
| CN115798942A (en) * | 2022-12-16 | 2023-03-14 | 南通江海储能技术有限公司 | High-sealing type bolt type lithium ion capacitor |
| CN115863891A (en) * | 2023-01-05 | 2023-03-28 | 湖南德赛电池有限公司 | Battery case and battery |
| CN115863891B (en) * | 2023-01-05 | 2023-08-15 | 湖南德赛电池有限公司 | Battery case and battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217485562U (en) | Large cylindrical battery structure | |
| WO2023185501A1 (en) | High-energy-density cylindrical battery and assembly process therefor | |
| CN108461757B (en) | Cylindrical battery and electrode current collecting assembly and manufacturing method thereof | |
| WO2022077912A1 (en) | Top cover assembly for power battery, and power battery | |
| CN216389534U (en) | Lithium battery end structure | |
| CN113871763B (en) | Cylindrical battery case, cylindrical battery, and method for mounting cylindrical battery | |
| CN109119674B (en) | Power lithium battery | |
| CN112993491A (en) | Lithium battery, battery cell and assembly method | |
| CN215220838U (en) | Battery case, battery and vehicle | |
| WO2024094179A1 (en) | End cover assembly of battery, battery cell, energy storage device, and electrical apparatus | |
| CN113745715A (en) | Lithium battery end part structure and manufacturing method | |
| WO2020248940A1 (en) | Electrochemical energy storage device | |
| CN115483487B (en) | Cylindrical battery and manufacturing method thereof | |
| CN204991889U (en) | Power battery | |
| CN207381468U (en) | electrode lead-out structure and energy storage device | |
| CN115719849A (en) | Cylindrical battery suitable for high-speed production and assembly process thereof | |
| CN114639863A (en) | Cylindrical battery and method for manufacturing the same | |
| CN209947672U (en) | Electrochemical energy storage device | |
| CN217823172U (en) | Lithium ion cylinder electricity core positive current collector connection structure and lithium ion battery | |
| CN219086102U (en) | Screw-thread sealed high-multiplying-power cylindrical battery | |
| CN213340543U (en) | Secondary battery cover plate and secondary battery | |
| CN218039507U (en) | End cover structure and battery | |
| CN219717024U (en) | Cylindrical battery and battery pack comprising same | |
| US20230299396A1 (en) | Battery assembly and preparation method, battery and electric vehicle | |
| CN219066988U (en) | Cylindrical battery and power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |