CN208400966U - A kind of high-capacity cylindrical serondary lithium battery - Google Patents
A kind of high-capacity cylindrical serondary lithium battery Download PDFInfo
- Publication number
- CN208400966U CN208400966U CN201820816644.1U CN201820816644U CN208400966U CN 208400966 U CN208400966 U CN 208400966U CN 201820816644 U CN201820816644 U CN 201820816644U CN 208400966 U CN208400966 U CN 208400966U
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- China
- Prior art keywords
- positive
- cathode
- cap assembly
- negative
- battery core
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of high-capacity cylindrical serondary lithium battery, including cathode cap assembly, positive cap assembly, negative straps and positive strap, battery core, shells；Cathode cap assembly and positive cap assembly pass through negative straps respectively and positive strap is fixedly welded on the both ends of battery core, and casing is set to the outside of battery core, and the both ends of shell are connected and fixed with cathode cap assembly and positive cap assembly respectively.The utility model is by acting on the insulation gap of negative insulation protective cradle in negative straps and positive strap and positive insulation protection bracket; so that cathode cap assembly and positive cap assembly are electrically insulated with the both ends of battery core respectively, and then it can effectively prevent the generation of short circuit.
Description
Technical field
The utility model belongs to field, is related to a kind of high-capacity cylindrical serondary lithium battery.
Background technique
Secondary cell generally comprises battery core, shell, top cover and insulation frame, wherein battery core is housed in shell, top cover and shell
Body is assembled together, and the tab of battery core is electrically connected with the pole of top cover.Insulation protection bracket is fixed on the connection sheet on the downside of top cover
On, battery core and top cover are separated, so that tab be avoided to be electrically connected with the other parts of top cover.In order to guarantee that the overcurrent of tab is cut
Area needs to guarantee that tab has enough width, but in the assembling process or use process of secondary cell, if secondary
Battery is impacted, and tab may touch cathode top cover and be electrically connected, and leads to secondary cell internal short-circuit, so connecting in cathode
Packet insulating cement in contact pin.
Utility model content
The purpose of this utility model is to provide a kind of high-capacity cylindrical serondary lithium batteries, solve the super electricity of large capacity
Cathode cap assembly and just is welded and fixed by negative straps and positive strap in the conducting heavy current problem of appearance, battery core both ends
Pole cap assembly, by with opposite polarity positive and negative tab and its corresponding collector, battery core, the positive and negative tab and collection of battery core
The contact of fluid whole face, largely improves the water conservancy diversion area of battery core charge and discharge, it is made to have the performance of high current charge-discharge；
And by will be between negative insulation protective cradle in negative straps and positive strap and the insulation of positive insulation protection bracket
Every effect, so that cathode cap assembly and positive cap assembly are electrically insulated with the both ends of battery core respectively, and then can effectively prevent
Only short-circuit generation；Battery core mutually clamps stationary positioned with the insulation protection bracket in cathode cap assembly, positive cap assembly simultaneously,
Ensure that battery core center is fixed, do not shake, improve production assembly precision, avoids battery core and contacted with battery case and short-circuit, mentioned
High security performance.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of high-capacity cylindrical serondary lithium battery, including cathode cap assembly, positive cap assembly, negative straps and
Positive strap, battery core, shell；
Cathode cap assembly passes through negative straps respectively with positive cap assembly and positive strap is fixedly welded on electricity
The both ends of core, casing be set to battery core outside, and the both ends of shell respectively with cathode cap assembly and anode cap assembly
It is connected and fixed；
Negative straps include that negative insulation protective cradle and integrally connected are fixed on one end face of negative insulation protective cradle
Copper plate nickel set fluid, copper nickel plating collection liquid surface is angularly evenly equipped with several cathode intake chutes, while plating nickel set fluid in copper
Surface side is welded with cathode flow deflector, and copper, which plates, is equipped with cathode delivery hole at the centre of surface of nickel set fluid；
Cathode cap assembly includes the negative pole being fixedly welded on cathode flow deflector, negative pole wall outer surface week
Side is equipped with one layer of insulated plastic, is arranged in the outside of insulated plastic and is fixed with cathode coping plate, and the one of cathode coping plate and shell
End is welded and fixed；
Positive strap includes positive insulation protection bracket and the aluminium afflux for being fixed on positive one end face of insulation protection bracket
Body, aluminium collection liquid surface is angularly evenly equipped with several positive intake chutes, while being welded with just in aluminium collection liquid surface side
Pole flow deflector is equipped with positive delivery hole at the centre of surface of aluminium collector；
Positive cap assembly includes the Positive Poles being fixedly welded on positive flow deflector；It is arranged and is fixed in Positive Poles
Positive coping plate, Positive Poles and positive coping plate electrical connection, while one end of positive coping plate and shell is welded and fixed；
The both ends of battery core are respectively equipped with negative lug and positive pole ear, negative lug and positive pole ear respectively with copper nickel plating collection
One end face of fluid and aluminium collector is welded and fixed, so that negative lug and positive pole ear connect with negative straps and anode respectively
Contact pin electrical connection.
Further, insulating cement is posted on cathode flow deflector.
Further, the surface side of cathode coping plate is welded with explosion rupture disk, and the surface other side is provided with liquid injection port, and
Sealing nail is welded at liquid injection port.
Further, the axis line position of battery core be equipped with electrolyte drain through-hole, electrolyte drain through-hole respectively with cathode
The cathode delivery hole of connection sheet is connected with the positive delivery hole of positive strap.
Further, one layer of insulating film is wrapped up outside battery core, and battery core is made to be electrically insulated with shell.
The utility model has the beneficial effects that
1, the utility model solves the problems, such as the conducting heavy current of large capacity secondary columnar battery, and battery core both ends pass through cathode
Cathode cap assembly and positive cap assembly is welded and fixed in connection sheet and positive strap, by with opposite polarity positive and negative anodes
The positive and negative tab of ear and its corresponding collector, battery core, battery core is contacted with collector whole face, largely improves battery core charge and discharge
The water conservancy diversion area of electricity, makes it have the performance of high current charge-discharge.
2, the utility model is by the way that negative insulation protective cradle in negative straps and positive strap and anode to insulate
The insulation gap of protective cradle acts on, so that cathode cap assembly and positive cap assembly are electrically insulated with the both ends of battery core respectively,
And then it can effectively prevent the generation of short circuit.
3, the insulation protection bracket of battery core and cathode cap assembly, positive cap assembly mutually clamps fixation calmly in the utility model
Position, it is ensured that battery core center is fixed, and is not shaken, and production assembly precision is improved, and is avoided battery core and is contacted with battery case and short-circuit,
Improve security performance.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the utility model high-capacity cylindrical serondary lithium battery structural schematic diagram；
Fig. 2 is the utility model negative straps structural schematic diagram；
Fig. 3 is the utility model negative straps structural schematic diagram；
Fig. 4 is the utility model cathode cap assembly structural schematic diagram；
Fig. 5 is the utility model positive strap structural schematic diagram；
Fig. 6 is the utility model positive strap structural schematic diagram；
Fig. 7 is the utility model anode cap assembly structural schematic diagram.
Specific embodiment
A kind of high-capacity cylindrical serondary lithium battery, as shown in Figure 1, include cathode cap assembly 1, positive cap assembly 2,
Negative straps 3 and positive strap 4, battery core 5, shell 6；
Cathode cap assembly 1 and positive cap assembly 2 are welded and fixed by negative straps 3 and positive strap 4 respectively
In the both ends of battery core 5, shell 6 is sheathed on the outside of battery core 5, and the both ends of shell 6 respectively with cathode cap assembly 1 and anode
Cap assembly 2 is connected and fixed；
As shown in Figures 2 and 3, negative straps 3 include that negative insulation protective cradle 31 and integrally connected are fixed on cathode
The copper of 31 1 end face of insulation protection bracket plates nickel set fluid 32, and copper plating 32 surface of nickel set fluid is angularly evenly equipped with several cathode and leads
Liquid bath 321, while it being welded with cathode flow deflector 322 in copper plating 32 surface side of nickel set fluid, copper plates nickel set fluid 32
Cathode delivery hole 323 is equipped at centre of surface；
As shown in figure 4, cathode cap assembly 1 includes the negative pole 11 being fixedly welded on cathode flow deflector 322, cathode
After pole 11 is fixedly welded on cathode flow deflector 322, insulating cement 8 is posted on cathode flow deflector 322, so that cathode top cover group
It insulate between part 1 and negative straps 3, while by the insulation blocking effect of negative insulation protective cradle 31 so that cathode top cover
Component 1 is separated with battery core 5, and copper plating nickel set fluid 32 is separated with shell 6, achievees the purpose that electrical isolation；11 side of negative pole
Wall outer surface side is equipped with one layer of insulated plastic 12, is arranged in the outside of insulated plastic 12 and is fixed with cathode coping plate 13, cathode
Coping plate 13 and one end of shell 6 are welded and fixed；The surface side of cathode coping plate 13 is welded with explosion rupture disk 15, and surface is another
Side is provided with liquid injection port 142, and sealing nail 141 is welded at liquid injection port 142；
As shown in Figure 5 and Figure 6, positive strap 4 includes positive insulation protection bracket 41 and is fixed on positive insulation protection
The aluminium collector 42 of 41 1 end face of bracket, 42 surface of aluminium collector are angularly evenly equipped with several positive intake chutes 421, while in aluminium
42 surface side of collector is welded with positive flow deflector 422, and positive delivery hole is equipped at the centre of surface of aluminium collector 42
423；
As shown in fig. 7, positive cap assembly 2 includes the Positive Poles 21 being fixedly welded on positive flow deflector 422, anode
After pole 21 is fixedly welded on positive flow deflector 422, while being made by the insulation blocking effect of positive insulation protection bracket 41
It obtains positive cap assembly 2 to separate with battery core 5, and aluminium collector 42 is separated with shell 6, achievees the purpose that electrical isolation；Positive pole
It is arranged on column 21 and is fixed with positive coping plate 22, Positive Poles 21 and positive coping plate 22 are electrically connected, while positive coping plate 22
It is welded and fixed with one end of shell 6；
The both ends of battery core 5 are respectively equipped with negative lug 51 and positive pole ear 52, and negative lug 51 and positive pole ear 52 are distinguished
The end face for plating nickel set fluid 32 and aluminium collector 42 with copper is welded and fixed, so that negative lug 51 and positive pole ear 52 are distinguished
It is electrically connected with negative straps 3 and positive strap 4；The axis line position of battery core 5 is equipped with electrolyte drain through-hole 54, electrolyte
Drain through-hole 54 is connected with the positive delivery hole 423 of the cathode delivery hole 323 of negative straps 3 and positive strap 4 respectively；
Electrolyte can by the liquid injection port 142 on cathode cap assembly 1, by cathode delivery hole 323, electrolyte drain through-hole 54,
Positive delivery hole 423, cathode intake chute 321, positive intake chute 423 the space transfusion communicated to the inside of battery core；Battery core 5
Outside one layer of insulating film 7 of package, makes battery core 5 be electrically insulated with shell 6；
The specific preparation method of the cylinder serondary lithium battery, specific as follows:
The first step, in negative straps 3, by the 51 whole face Laser Welding of negative lug in copper plating nickel set fluid 32 and battery core 5
It is connected together；
In positive strap 4, the 52 whole face laser welding of positive pole ear on aluminium collector 42 and battery core 5 is existed for second step
Together；
The battery core that second step is completed is wrapped insulating film 7 by third step；
4th step, the battery core assembly that third step is made, in negative straps 3, by cathode flow deflector 322 and cathode
11 bottom surface of negative pole in top cover group 1 welds together, and then pastes insulating film 8 to cathode flow deflector 322；
The battery core assembly that 4th step completes is put on shell 6 by the 5th step, will be positive in positive and negative anodes connection sheet 4
422 surface of flow deflector and the bottom surface of Positive Poles 21 in positive cap assembly 2 weld together；
6th step, the component that the 5th step is completed, is assembled together with shell 6, by the positive coping plate 22 of cathode coping plate 13
It is respectively welded in the both ends with shell 6；
7th step, at this time the liquid injection port 142 on cathode coping plate 13, cathode delivery hole 323, electrolyte drain through-hole 54,
Positive delivery hole 423, cathode intake chute 321, positive intake chute 423 are connected；Electrolyte can be by cathode coping plate 13
Liquid injection port 142 inject, lead to above-mentioned electrolyte diversion trench and deflector hole and be flowed into inside battery core pole piece and capacitor various places inside,
After completing fluid injection, by liquid injection port 142 using sealing nail seal welding, sealing is completed.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of high-capacity cylindrical serondary lithium battery, which is characterized in that including cathode cap assembly (1), positive cap assembly
(2), negative straps (3) and positive strap (4), battery core (5), shell (6)；
Cathode cap assembly (1) and positive cap assembly (2) are welded by negative straps (3) and positive strap (4) respectively
Be fixed on the both ends of battery core (5), shell (6) is sheathed on the outside of battery core (5), and the both ends of shell (6) respectively with cathode top
Cap assemblies (1) and positive cap assembly (2) are connected and fixed；
Negative straps (3) include that negative insulation protective cradle (31) and integrally connected are fixed on negative insulation protective cradle (31)
The copper of one end face plates nickel set fluid (32), and copper plating nickel set fluid (32) surface is angularly evenly equipped with several cathode intake chutes (321),
It is welded with cathode flow deflector (322) in copper plating nickel set fluid (32) surface side simultaneously, copper plates the table of nickel set fluid (32)
Cathode delivery hole (323) are equipped at the center of face；
Cathode cap assembly (1) includes the negative pole (11) being fixedly welded on cathode flow deflector (322), negative pole (11)
Wall outer surface side is equipped with one layer of insulated plastic (12), is arranged in the outside of insulated plastic (12) and is fixed with cathode coping plate
(13), cathode coping plate (13) and one end of shell (6) are welded and fixed；
Positive strap (4) includes positive insulation protection bracket (41) and is fixed on positive (41) one end face of insulation protection bracket
Aluminium collector (42), aluminium collector (42) surface are angularly evenly equipped with several positive intake chutes (421), while in aluminium collector
(42) surface side is welded with positive flow deflector (422), and positive delivery hole is equipped at the centre of surface of aluminium collector (42)
(423)；
Positive cap assembly (2) includes the Positive Poles (21) being fixedly welded on positive flow deflector (422)；Positive Poles (21)
On be arranged and be fixed with positive coping plate (22), Positive Poles (21) and positive coping plate (22) are electrically connected, while positive coping plate
(22) one end with shell (6) is welded and fixed；
The both ends of battery core (5) are respectively equipped with negative lug (51) and positive pole ear (52), negative lug (51) and positive pole ear
(52) it is welded and fixed respectively with copper plating nickel set fluid (32) and an end face of aluminium collector (42), so that negative lug (51) and just
Pole tab (52) is electrically connected with negative straps (3) and positive strap (4) respectively.
2. a kind of high-capacity cylindrical serondary lithium battery according to claim 1, which is characterized in that cathode flow deflector
(322) insulating cement (8) are posted on.
3. a kind of high-capacity cylindrical serondary lithium battery according to claim 1, which is characterized in that cathode coping plate (13)
Surface side be welded with explosion rupture disk (15), the surface other side is provided with liquid injection port (142), and at liquid injection port (142) weld
It is fixed with sealing nail (141).
4. a kind of high-capacity cylindrical serondary lithium battery according to claim 1, which is characterized in that the axis of battery core (5)
Line position is equipped with electrolyte drain through-hole (54), electrolyte drain through-hole (54) the cathode drain with negative straps (3) respectively
Hole (323) is connected with the positive delivery hole (423) of positive strap (4).
5. a kind of high-capacity cylindrical serondary lithium battery according to claim 1, which is characterized in that packet outside battery core (5)
Wrap up in one layer of insulating film (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816644.1U CN208400966U (en) | 2018-05-29 | 2018-05-29 | A kind of high-capacity cylindrical serondary lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820816644.1U CN208400966U (en) | 2018-05-29 | 2018-05-29 | A kind of high-capacity cylindrical serondary lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208400966U true CN208400966U (en) | 2019-01-18 |
Family
ID=65134545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820816644.1U Expired - Fee Related CN208400966U (en) | 2018-05-29 | 2018-05-29 | A kind of high-capacity cylindrical serondary lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208400966U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767849A (en) * | 2019-11-21 | 2020-02-07 | 四川新敏雅电池科技有限公司 | Battery cover plate assembly, battery cell and assembling method thereof |
| CN112290167A (en) * | 2020-12-30 | 2021-01-29 | 江苏时代新能源科技有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
| CN112864524A (en) * | 2021-01-07 | 2021-05-28 | 合肥国轩高科动力能源有限公司 | Lithium battery shell and lithium battery |
| CN113517519A (en) * | 2021-03-19 | 2021-10-19 | 天津荣盛盟固利新能源科技有限公司 | Bus bar structure and welding method |
| CN114221073A (en) * | 2021-12-13 | 2022-03-22 | 上海比耐信息科技有限公司 | Cylindrical lithium battery and manufacturing method thereof |
| WO2022237906A1 (en) * | 2021-05-14 | 2022-11-17 | Sino-Australia Power Storage Technology (Xi'an) Co, Ltd | Connecting device for post and lug of high-capacity battery |
| WO2023280232A1 (en) * | 2021-07-09 | 2023-01-12 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and power consuming device |
| EP4312301A2 (en) | 2021-01-19 | 2024-01-31 | Lg Energy Solution, Ltd. | Battery, and battery pack and vehicle including the same |
| US12125986B2 (en) | 2021-02-19 | 2024-10-22 | Lg Energy Solution, Ltd. | Battery and current collector applied thereto, and battery pack and vehicle including the same |
-
2018
- 2018-05-29 CN CN201820816644.1U patent/CN208400966U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767849A (en) * | 2019-11-21 | 2020-02-07 | 四川新敏雅电池科技有限公司 | Battery cover plate assembly, battery cell and assembling method thereof |
| CN110767849B (en) * | 2019-11-21 | 2024-02-20 | 湖南领湃达志科技股份有限公司 | Battery cover plate assembly, battery cell and assembly method thereof |
| CN112290167A (en) * | 2020-12-30 | 2021-01-29 | 江苏时代新能源科技有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
| CN112290167B (en) * | 2020-12-30 | 2021-05-04 | 江苏时代新能源科技有限公司 | Battery cell, manufacturing method thereof, battery and electric device |
| CN112864524A (en) * | 2021-01-07 | 2021-05-28 | 合肥国轩高科动力能源有限公司 | Lithium battery shell and lithium battery |
| EP4312301A2 (en) | 2021-01-19 | 2024-01-31 | Lg Energy Solution, Ltd. | Battery, and battery pack and vehicle including the same |
| US12125986B2 (en) | 2021-02-19 | 2024-10-22 | Lg Energy Solution, Ltd. | Battery and current collector applied thereto, and battery pack and vehicle including the same |
| US12125985B2 (en) | 2021-02-19 | 2024-10-22 | Lg Energy Solution, Ltd. | Electrode assembly, battery, and battery pack and vehicle including the same |
| CN113517519B (en) * | 2021-03-19 | 2023-02-17 | 天津荣盛盟固利新能源科技有限公司 | Welding method |
| CN113517519A (en) * | 2021-03-19 | 2021-10-19 | 天津荣盛盟固利新能源科技有限公司 | Bus bar structure and welding method |
| WO2022237906A1 (en) * | 2021-05-14 | 2022-11-17 | Sino-Australia Power Storage Technology (Xi'an) Co, Ltd | Connecting device for post and lug of high-capacity battery |
| WO2023280232A1 (en) * | 2021-07-09 | 2023-01-12 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and power consuming device |
| CN114221073A (en) * | 2021-12-13 | 2022-03-22 | 上海比耐信息科技有限公司 | Cylindrical lithium battery and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |