CN213752784U - Cylindrical battery - Google Patents
Cylindrical battery Download PDFInfo
- Publication number
- CN213752784U CN213752784U CN202022549360.0U CN202022549360U CN213752784U CN 213752784 U CN213752784 U CN 213752784U CN 202022549360 U CN202022549360 U CN 202022549360U CN 213752784 U CN213752784 U CN 213752784U
- Authority
- CN
- China
- Prior art keywords
- shell
- cylindrical
- central column
- sleeve
- seat
- 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
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a cylindrical battery, including battery case, battery case includes: the shell cover comprises a cylindrical shell, the cylindrical shell is provided with an upper end face with a central hole, the lower end of the central hole is provided with a sleeve with an upper end opening and a lower end opening, and the lower end of the cylindrical shell is provided with an opening; the shell seat comprises a cylindrical bottom shell with an opening at the upper end, a longitudinal central column is arranged in the middle of the cylindrical bottom shell, the lower end of the cylindrical shell is inserted into the cylindrical bottom shell and is in sealed connection with the cylindrical bottom shell, and the upper end of the central column is inserted into the sleeve and is in sealed connection with the sleeve; the shell cover and the shell seat enclose a sealed cavity. The battery design of the shell structure can greatly improve the heat dissipation condition of the center hole of the cylindrical battery core and optimize the circulation and safety performance of the battery core.
Description
Technical Field
The utility model relates to a lithium ion battery technical field especially relates to a cylindrical battery.
Background
With the development and progress of the technology, the lithium ion battery has been widely applied due to the advantages of large specific energy, long cycle life, good safety performance and the like. The cylindrical electric core is a common lithium ion battery, the heat-dissipating ability of the core of the cylindrical electric core with the existing high-energy density and large-diameter size structure is poor, and the circulation and the safety performance of the electric core are limited, so that the heat-dissipating ability of the core of the cylindrical electric core is improved, and the safety and the circulation performance of the electric core are improved to become the problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present application is to provide a cylindrical battery.
In order to realize the purpose of the utility model, the utility model provides a cylindrical battery, which comprises a battery shell,
the battery case includes: a shell cover and a shell seat,
the shell cover comprises a cylindrical shell, the cylindrical shell is provided with an upper end face with a central hole, the lower end of the central hole is provided with a sleeve with an upper end and a lower end which are opened, and the lower end of the cylindrical shell is opened;
the shell seat comprises a cylindrical bottom shell with an opening at the upper end, a longitudinal central column is arranged in the middle of the cylindrical bottom shell,
the lower end of the cylindrical shell is inserted into the cylindrical bottom shell and is in sealed connection with the cylindrical bottom shell, and the upper end of the central column is inserted into the sleeve and is in sealed connection with the sleeve;
the shell cover and the shell seat enclose a sealed cavity.
Wherein, the center post is the cavity structures, and the upper end opening.
Wherein, the central post upper end is provided with the throat portion.
And a first sealing element is arranged between the outer side wall of the lower end of the cylindrical shell and the inner side wall of the cylindrical shell, and a second sealing element is arranged between the outer side wall of the upper end of the central column and the inner side wall of the sleeve.
Wherein, first sealing member and second sealing member are the sealing washer.
Wherein, the device also comprises an electrode group,
it includes: at least one positive electrode and one negative electrode and a separator separating the positive and negative electrodes, the positive electrode, the negative electrode and the separator being formed in a spiral winding manner around a winding center hole;
the electrode group is arranged in a sealed cavity of the battery shell, and the central column penetrates through the winding central hole.
The positive and negative lugs of the electrode group are respectively connected with the shell cover and the shell seat, or the positive and negative lugs of the electrode group are respectively connected with the shell seat and the shell cover.
The shell seat and the shell cover are made of stainless steel or aluminum.
Compared with the prior art, the beneficial effects of the utility model are that, this kind of shell structure's battery design can improve the circulation and the security performance of the heat dissipation condition optimization electric core of cylindrical electric core centre bore greatly.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
FIG. 2 is a schematic structural view of the housing cover of the present application;
fig. 3 is a schematic structural view of the housing seat of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the present invention provides a cylindrical battery, which comprises a battery housing,
the battery case includes: a shell cover and a shell seat,
the shell cover comprises a cylindrical shell 11, the cylindrical shell 11 is provided with an upper end face 12 with a central hole, the lower end of the central hole is provided with a sleeve 13 with an upper end and a lower end which are opened, and the lower end of the cylindrical shell 11 is opened;
the shell seat comprises a cylindrical bottom shell 41 with an opening at the upper end, a longitudinal central column 42 is arranged in the middle of the cylindrical bottom shell 41,
the lower end of the cylindrical shell 11 is inserted into the cylindrical bottom shell 41 and is in sealed connection, and the upper end of the central column (42) is inserted into the sleeve and is in sealed connection;
the shell cover 1 and the shell seat enclose a sealed cavity.
In a preferred embodiment, the central column is a cavity structure and has an open upper end.
In a preferred embodiment, the central column is provided with a throat at an upper end thereof.
In a preferred embodiment, a first sealing member 2 is disposed between the outer sidewall of the lower end of the cylindrical shell 11 and the inner sidewall of the cylindrical bottom shell 41, and a second sealing member 3 is disposed between the outer sidewall of the upper end of the center post 42 and the inner sidewall of the sleeve 13.
In a preferred embodiment, the first seal 2 and the second seal 3 are both sealing rings.
In the preferred embodiment, an electrode set 5 is also included,
it includes: at least one positive electrode and one negative electrode and a separator separating the positive and negative electrodes, the positive electrode, the negative electrode and the separator being formed in a spiral winding manner around a winding center hole;
the electrode assembly 5 is disposed within a sealed cavity of the battery housing and the central post 42 passes through the winding central aperture.
In a preferred embodiment, the positive and negative electrode tabs of the electrode group 5 are respectively connected to the housing cover and the housing base, or the positive and negative electrode tabs of the electrode group 5 are respectively connected to the housing base and the housing cover.
In a preferred embodiment, the shell seat and the shell cover are made of stainless steel or aluminum.
The manufacturing method of the cylindrical battery comprises the following steps:
a. winding the pole group: the positive and negative pole pieces and the diaphragm are wound into a pole group by a circular winding needle clockwise/anticlockwise, and the pole lugs of the pole group are respectively arranged on two end faces of the pole group;
b. and (3) installing a sealing element: respectively placing a first sealing element and a second sealing element on the inner side of the sleeve of the shell cover and the outer side of the cylindrical shell end;
c. welding and placing an electrode group into a shell: welding one electrode lug of the electrode group on the shell cover, coaxially placing the electrode group in the shell cover, welding the other electrode lug of the electrode lug on the shell seat, coaxially placing the shell cover provided with the electrode group in the shell seat, and enabling the central column to penetrate through a winding central hole of the electrode group;
d. liquid injection: adopting one of the following modes: the first method comprises the following steps: before the electrode is arranged in the shell, the electrode is immersed in liquid; and the second method comprises the following steps: injecting electrolyte into the shell cover after the electrode group is welded with the shell cover for the first time, wherein the third chapter: after the electrode assembly is sealed in the battery shell, opening a hole on the battery shell for injecting liquid, and then sealing the hole;
e. packaging: applying a radial necking force to an overlapping area of the outer side of the shell cover and the shell seat, and compacting the second sealing ring in the overlapping area to realize outer side sealing; then, applying a radial necking force to an overlapped area of the sleeve of the shell cover and the central column of the shell seat, and compacting the sealing ring in the overlapped area to realize inner side sealing;
f. formation: and charging and activating the sealed and injected battery core.
The technical means not described in detail in the present application are known techniques.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A cylindrical battery, comprising a battery case,
the battery case includes: a shell cover and a shell seat,
the shell cover comprises a cylindrical shell (11), the cylindrical shell (11) is provided with an upper end face (12) with a central hole, the lower end of the central hole is provided with a sleeve (13) with an upper end and a lower end which are opened, and the lower end of the cylindrical shell (11) is opened;
the shell seat comprises a cylindrical bottom shell (41) with an opening at the upper end, a longitudinal central column (42) is arranged in the middle of the cylindrical bottom shell (41),
the lower end of the cylindrical shell (11) is inserted into the cylindrical bottom shell (41) and is in sealed connection with the cylindrical bottom shell, and the upper end of the central column (42) is inserted into the sleeve and is in sealed connection with the sleeve;
the shell cover and the shell seat enclose a sealed cavity.
2. A cylindrical battery according to claim 1,
the central column is of a cavity structure, and the upper end of the central column is open.
3. A cylindrical battery according to claim 2,
the upper end of the central column is provided with a necking part.
4. A cylindrical battery according to claim 1,
a first sealing element (2) is arranged between the outer side wall of the lower end of the cylindrical shell (11) and the inner side wall of the cylindrical bottom shell (41), and a second sealing element (3) is arranged between the outer side wall of the upper end of the central column (42) and the inner side wall of the sleeve (13).
5. A cylindrical battery according to claim 4,
the first sealing element (2) and the second sealing element (3) are both sealing rings.
6. A cylindrical battery according to claim 1,
also comprises an electrode group (5),
it includes: at least one positive electrode and one negative electrode and a separator separating the positive and negative electrodes, the positive electrode, the negative electrode and the separator being formed in a spiral winding manner around a winding center hole;
the electrode group (5) is arranged in a sealed cavity of the battery shell, and a central column (42) penetrates through the winding central hole.
7. A cylindrical battery according to claim 6, characterized in that the positive and negative lugs of the electrode group (5) are connected to the housing cover and the housing seat, respectively, or the positive and negative lugs of the electrode group (5) are connected to the housing seat and the housing cover, respectively.
8. The cylindrical battery according to claim 1, wherein the housing seat and the housing cover are made of stainless steel or aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022549360.0U CN213752784U (en) | 2020-11-06 | 2020-11-06 | Cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022549360.0U CN213752784U (en) | 2020-11-06 | 2020-11-06 | Cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752784U true CN213752784U (en) | 2021-07-20 |
Family
ID=76820873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022549360.0U Active CN213752784U (en) | 2020-11-06 | 2020-11-06 | Cylindrical battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213752784U (en) |
-
2020
- 2020-11-06 CN CN202022549360.0U patent/CN213752784U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7104139B2 (en) | Battery housing assembly and battery with it | |
| CN208400966U (en) | A kind of high-capacity cylindrical serondary lithium battery | |
| CN218769992U (en) | Battery cell, battery and power consumption device | |
| CN211088318U (en) | Semimetal shell button cell | |
| JP7045438B2 (en) | Button type battery and its manufacturing method | |
| CN111969254B (en) | Battery core | |
| WO2022206951A1 (en) | Battery cover plate, battery, and preparation method for battery | |
| CN106920703A (en) | A kind of ultracapacitor | |
| CN213752784U (en) | Cylindrical battery | |
| CN215220838U (en) | Battery case, battery and vehicle | |
| CN211605330U (en) | Explosion-proof lithium ion battery | |
| CN104103850B (en) | Cylindrical lithium ion battery | |
| CN112382783A (en) | Cylindrical battery and manufacturing method thereof | |
| CN210379217U (en) | Cylindrical battery and battery cap thereof | |
| CN204991889U (en) | Power battery | |
| CN215911489U (en) | Button cell | |
| CN216015531U (en) | Button cell | |
| JP6086210B2 (en) | Method for manufacturing power storage element | |
| CN212542633U (en) | Battery liquid injection structure, battery top cover and power battery | |
| CN105118935A (en) | Battery cover plate unit and battery | |
| CN213989016U (en) | Lower plastic, battery top cap and power battery | |
| CN218299991U (en) | Battery cover plate and battery | |
| JP3182650U (en) | Improved structure of secondary battery | |
| CN221379542U (en) | Lithium battery cover plate | |
| CN220272713U (en) | Capsule gastroscope lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230203 Address after: 300457 No. 38, Haitai South Road, Binhai high tech Industrial Development Zone (outer ring), Binhai New Area, Tianjin Patentee after: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: No.6 Lanyuan Road, Huayuan Industrial Zone, Binhai New Area, Tianjin, 300384 Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |