CN207587896U - A kind of lithium rechargeable battery core capsule structure - Google Patents
A kind of lithium rechargeable battery core capsule structure Download PDFInfo
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- CN207587896U CN207587896U CN201721751729.8U CN201721751729U CN207587896U CN 207587896 U CN207587896 U CN 207587896U CN 201721751729 U CN201721751729 U CN 201721751729U CN 207587896 U CN207587896 U CN 207587896U
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- stop frame
- core
- insulating film
- upper stop
- rivet
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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
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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
- 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
Abstract
The utility model is related to a kind of lithium rechargeable battery core capsule structures.Including lower stop frame, core assembly, insulating film, upper stop frame and the cover board stacked successively, the upper stop frame is welded on the cover board by anode rivet and cathode rivet, it fastens and is connected between the lower stop frame and upper stop frame, and lower stop frame and upper stop frame by core assembly and insulating film clamping therebetween, the insulating film forms core assembly the total incapsulation state from cover board bottom to core assembly bottom.As shown from the above technical solution, the utility model uses total incapsulation mode of the insulating film by cover board to core bottom, to realize the all-directional covering to core；For traditional structure, there are higher Capacity design space, security performance and feasibility is made.
Description
Technical field
The utility model is related to power battery fields, and in particular to a kind of lithium rechargeable battery core capsule structure.
Background technology
With the Green Development of society, the yield fast lifting of new-energy automobile, the core component as new-energy automobile
The demand of lithium dynamical battery is persistently broken out.The demand of development and military equipment in particular with space technology, information and micro- electricity
A large amount of industrial, civilian, portable medical electronic product appearances, electric vehicle are ground caused by the fast development of sub- industry
System and exploitation and the enhancing of environmental protection consciousness, people are light-weight to small, high-energy, securely and reliably, pollution-free, can
The battery requirements used that charge repeatedly are more urgent.As the source of new-energy automobile power output, battery is even more to carry vehicle
Life security with personnel.Therefore its safety is then the most important thing.
It is the relationship that be unable to do without that security risk and the short circuit of inside battery, which occur, for a battery, in the manufacturing process of battery
In, protection processing can be all done to core.Traditional coating can be by insulating film blanching in stop frame side, this mode is easy to bring system
Into difficulty and the risk of degumming, and insulating film is too thick can influence then to influence battery cell energy into shell, insulating film too it is thin again
Easily damaged or blanching point fusing；Or it is entirely encapsulated using core, and it is complete it is encapsulated electrolyte can be made not utilize adequately, make
Into the risk of impregnation poor circulation difference.Therefore it provides a kind of can not only meet the needs of battery high energy amount, but also Gao An can be met
The core capsule structure of full performance is with regard to particularly important.
Utility model content
The purpose of this utility model is to provide a kind of lithium rechargeable battery core capsule structure, which realizes absolutely
Velum can suitably reduce stop frame height to the full package of core, improve inside battery space availability ratio, promote battery energy
Amount ensures the superiority and security reliability of performance.
To achieve the above object, the utility model employs following technical scheme：Including lower stop frame, the volume stacked successively
Core assembly, insulating film, upper stop frame and cover board, the upper stop frame are welded on cover board by anode rivet and cathode rivet
On, it fastens and is connected between the lower stop frame and upper stop frame, and lower stop frame and upper stop frame are by core assembly and absolutely
Therebetween, the insulating film forms from the complete of cover board bottom to core assembly bottom core assembly for velum clamping
Coating state.
The upper stop frame is equipped with positioning convex platform and liquid injection hole positioning convex platform, and the lower stop frame is equipped with determining
Position boss and the matched location hole of liquid injection hole positioning convex platform and fluid injection location hole, the upper stop frame are equipped with spherical clip
Button, the lower stop frame is equipped with to be buckled matched block button hole with spherical shape, and upper stop frame and lower stop frame pass through spherical clip
It detains the fastening of the cooperation with block button hole to be connected, the lower stop frame is equipped with first row stomata.
The core assembly includes core, positive pole ear, negative lug, anode gasket and cathode gasket, described
Anode gasket and cathode gasket are welded and fixed respectively with anode rivet and cathode rivet.
The insulating film is overall structure, including cephacoria matched with two sides before and after core and caudacoria, before described
Film and caudacoria are symmetrical arranged and the two is connected by intermediate junctional membrane, are formed and supplied between the junctional membrane and cephacoria and caudacoria
The notch that core assembly is welded with anode rivet and cathode rivet, the junctional membrane are equipped with and positioning convex platform, liquid injection hole
Positioning convex platform, the first positioning hole that spherical shape is buckled, first exhaust hole site matches, the first fluid injection location hole, the first block button hole
And second row stomata, the explosion-proof valve outlet hole to match with explosion-proof valve position is additionally provided on the junctional membrane.
Three free margins of the cephacoria are outward extended with first side, second side and third side respectively, described
Third side is equipped with third gas vent, and the both ends of third side further respectively have the first flanging and the second flanging, described
First side, second side, third side and cephacoria junction be equipped with folding line, first flanging, the second flanging and the
The junction of three sides is equipped with folding line；
It is outward extended with four side, the 5th side and the 6th side respectively on three articles of free margins of the caudacoria, it is described
The 6th side be equipped with the 4th gas vent, the four side, the 5th side, the 6th side and caudacoria junction be equipped with
Folding line, and four side, the width of the 5th side are less than the width of first side, second side, the width of the 6th side is less than
The width of third side.
The first side, four side form the left side of core after folding package, during package including four side,
First side is outside；The second side, the 5th side form the right side of core after folding package, the 5th side during package
Inside, second side is outside；The third side and the 6th side form the bottom of core after folding package, the during package
Including six sides, third side forms the base angle of core wrap up outside, after first flanging and the second flap folded.
As shown from the above technical solution, the utility model uses total incapsulation mode of the insulating film by cover board to core bottom,
To realize the all-directional covering to core；For traditional structure, there are higher Capacity design space, security performance and be made
Feasibility；Insulating film using carry out without blanching position, not only can to avoid the security risk brought since blanching is unstable, but also
Stop frame height in the case where designing satisfaction can suitably be reduced to the total incapsulation of core, improve inside battery space utilization
Rate to realize the promotion of the energy content of battery, ensures performance advantage, security reliability.
Description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model；
Fig. 2 is the structure diagram of the utility model cover board and upper stop frame；
Fig. 3 is the structure diagram of the utility model core assembly；
Fig. 4 is the structure diagram of stop frame under the utility model；
Fig. 5 is the structure diagram of the utility model insulating film；
Fig. 6 is the installation diagram of the utility model insulating film package core；
Fig. 7 is the installation diagram of the utility model and aluminum hull.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of lithium rechargeable battery core capsule structure as shown in Figure 1, including lower stop frame 1, the volume stacked successively
Core assembly 2, insulating film 3, upper stop frame 4 and cover board 5, upper stop frame 4 are welded on lid by anode rivet 6 and cathode rivet 7
Fasten and be connected on plate 5, between lower stop frame 1 and upper stop frame 4, and lower stop frame 1 and upper stop frame 4 by core assembly 2 and
Therebetween, insulating film 3 is formed core assembly 2 from 5 bottom of cover board to 2 bottom of core assembly 3 clamping of insulating film
Total incapsulation state.I.e. upper stop frame 4 is fixed on the bottom surface of cover board 5, and insulating film 3 is laid in the surface of stop frame 4, and use is two-way
Mode of the positioning without blanching ensures the smooth and stability of insulating film 3；The core apparatus body 2 that ultrasonic welding is completed is placed on absolutely
The surface of velum 3, and the anode gasket 24 of core assembly 2, cathode gasket 25 and anode rivet 6, cathode rivet 7 are swashed
Photocoagulation, then lower stop frame 1 is placed on to the surface of core assembly 2, and lower stop frame 1 and upper stop frame 4 are fastened, make volume
Core assembly 2 and insulating film 3 are clipped between stop frame and lower stop frame, and comprehensive packet is carried out to core by insulating film
It wraps up in.The mode that upper stop frame 4 is fastened with lower stop frame 1 can ensure the stabilization of insulating film and core assembly in inside battery
Property.
Further, as shown in Figure 2, Figure 4 shows, upper stop frame 4 is equipped with positioning convex platform 41 and liquid injection hole positioning convex platform 42, under
Stop frame 1 be equipped with positioning convex platform 41 and 42 matched location hole 11 of liquid injection hole positioning convex platform and fluid injection location hole 12, on
Stop frame 4 is equipped with spherical buckle 43, and lower stop frame 1 is equipped with and the spherical 43 matched block button holes 13 that are buckled, upper stop frame 4
And lower stop frame 1 is connected by spherical buckle 43 with the cooperation fastening of block button hole 13, lower stop frame 1 is equipped with first row stomata
14。
Further, as shown in figure 3, core assembly 2 includes core 21, positive pole ear 22, negative lug 23, positive polar cushion
Piece 24 and cathode gasket 25, anode gasket 24 and cathode gasket 25 are welded and fixed respectively with anode rivet 6 and cathode rivet 7.
Further, as shown in figure 5, insulating film 3 is overall structure, including cephacoria 31 matched with two sides before and after core
And caudacoria 32, cephacoria 31 and caudacoria 32 are symmetrical arranged and the two is connected by intermediate junctional membrane 33, junctional membrane 33 and cephacoria 31
And the notch 34 welded for core assembly 2 with anode rivet 6 and cathode rivet 7 is formed between caudacoria 32, it is set on junctional membrane 33
There is the first positioning hole to match with positioning convex platform 41, liquid injection hole positioning convex platform 42, spherical buckle 43,14 position of first row stomata
331st, the first fluid injection location hole 332, the first block button hole 333 and second row stomata 334 are additionally provided with and explosion-proof valve position on junctional membrane 33
Put the explosion-proof valve outlet hole 335 to match.
Further, three articles of free margins of cephacoria 31 are outward extended with first side 311, second side 312 and respectively
Three sides 313, third side 313 is equipped with third gas vent 314, and the both ends of third side 313 further respectively have the first folding
315 and second flanging 316 of side, first side 311, second side 312, third side 313 and the junction of cephacoria 31 are equipped with folding
Trace, the first flanging 315, the second flanging 316 and the junction of third side 313 are equipped with folding line；On three free margins of caudacoria 32
It is outward extended with four side 321, the 5th side 322 and the 6th side 323 respectively, the 6th side 323 is equipped with the 4th exhaust
Hole 324, four side 321, the 5th side 322, the 6th side 323 and caudacoria 32 junction be equipped with folding line, and four side
321st, the width of the 5th side 322 is less than the width of first side 311, second side 312, and the width of the 6th side 323 is less than
The width of third side 313.
Further, package is formed after first side 311, four side 321 fold to the left side of core 21, the during package
Including four side 321, first side 311 outside, that is, forms the mode of broadside packet narrow side；Second side 312, the 5th side
322 fold after form package to the right side of core 21, during package including the 5th side 322, second side 312 is outside；Third side
313 and the 6th side 323 of side forms the bottom of core 21 after folding package, during package including the 6th side 323, third side
313 outside, and package is formed to the base angle of core 21 after the first flanging 315 and the folding of the second flanging 316.
The installation step of the utility model is as follows：
1）Upper stop frame 4 is first welded on cover board 5 by anode rivet 6, cathode rivet 7, stop frame 4 is fixed in guarantee
5 bottom end of cover board is fixed, as shown in Figure 2 in a manner that 5 bottom of cover board is upward；
2）Insulating film 3 is captured by sucker, insulating film 3 is laid in upper 4 surface of stop frame, this process can pass through upper stop
The positioning convex platform 41 of frame 4, the first positioning hole 331 of liquid injection hole positioning convex platform 42 and insulating film 3, the first fluid injection location hole 332
Coordinate the positioning to realize the two, and 3 bottom of insulating film ensures that it does not deviate not warpage using negative pressure mode；
3）Core assembly 2 is captured by sucker, core assembly 2 is placed in 3 surface of insulating film, ensures anode gasket
24th, after the bottom of cathode gasket 25 and anode rivet 6, cathode rivet 7 comes into full contact with, laser welding is carried out；
4）After laser welding, then lower stop frame 1 and upper stop frame 4 be interlocked；
5）By core assembly 2 and 3 doubling of insulating film, two the big of core 21 is allowed to face neat and come into full contact with, under appropriate
21 bottom of writing that surpasses all the others core allows its plane with lower stop frame 1 to come into full contact with, and ensures core 21 in internal stability；
6）As shown in fig. 6, starting coating after insulating film 3 and core 21 are fixed, first pass through first side 311 and wrap up
The mode that four side 321, second side 312 wrap up the 5th side 322 carries out the left and right side of core coating, side packet
Rubberizing is carried out after film；Then coating, bottom are carried out to the bottom of core in a manner that the 6th side 323 is wrapped up in third side 313
Rubberizing is carried out after portion's coating；Bottom flake 8 is placed in 9 bottom of aluminum hull before shell is entered, the encapsulated core finished is finally inserted into aluminum hull
9, entire assembling process is completed, as shown in Figure 7.
The beneficial effects of the utility model are：1）Insulating film uses two-way positioning and the dress without blanching with upper stop frame
Match, it is entirely avoided difficulty and the risk of degumming, therefore full packet is made in what stop frame side was brought in insulating film blanching by tradition
Film can suitably reduce stop frame height in the case where designing satisfaction, inside battery space availability ratio be improved, to realize battery
The promotion of energy；2）This core coating uses the total incapsulation mode by cover board bottom to core bottom, and uses fine and closely woven folding line
Line, it is entirely avoided due to shaking either encapsulated unreasonable phenomena such as insulating film is caused to come off or crack, substantially increase electricity
The security performance in pond；3）This core coating bottom uses " flanging " coating, can enhance the intensity at two side base angle of core, reduces volume
The core situation that bottom is scraped off when entering shell；4）Enough stomatas are arranged at bottom after core coating, it is ensured that battery PACK is each
Kind places the electrolysis utilization rate in the case of assembling, and using the assembly method that the bottom flake that insulate is placed in aluminum casing bottom, reduces
Battery short-circuit risks caused by vibrations.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to this practicality
Novel range is defined, and under the premise of the spirit of the design of the utility model is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In the range of.
Claims (6)
1. a kind of lithium rechargeable battery core capsule structure, it is characterised in that：Including the lower stop frame stacked successively（1）, volume
Core assembly（2）, insulating film（3）, upper stop frame（4）And cover board（5）, the upper stop frame（4）Pass through anode rivet（6）With
Cathode rivet（7）It is welded on cover board（5）On, the lower stop frame（1）And upper stop frame（4）Between fasten and be connected, and it is lower only
Moving frame（1）And upper stop frame（4）By core assembly（2）And insulating film（3）Clamping therebetween, the insulating film（3）
To core assembly（2）It is formed from cover board（5）Bottom is to core assembly（2）The total incapsulation state of bottom.
2. lithium rechargeable battery core capsule structure according to claim 1, it is characterised in that：The upper stop frame
（4）It is equipped with positioning convex platform（41）And liquid injection hole positioning convex platform（42）, the lower stop frame（1）It is equipped with and positioning convex platform
（41）And liquid injection hole positioning convex platform（42）Matched location hole（11）And fluid injection location hole（12）, the upper stop frame（4）
It is equipped with spherical buckle（43）, the lower stop frame（1）It is equipped with and is buckled with spherical shape（43）Matched block button hole（13）, on
Stop frame（4）And lower stop frame（1）It is buckled by spherical shape（43）With block button hole（13）Cooperation fasten and be connected, the lower stop
Frame（1）It is equipped with first row stomata（14）.
3. lithium rechargeable battery core capsule structure according to claim 2, it is characterised in that：The core assembling
Body（2）Including core（21）, positive pole ear（22）, negative lug（23）, anode gasket（24）And cathode gasket（25）, it is described
Anode gasket（24）And cathode gasket（25）Respectively with anode rivet（6）And cathode rivet（7）It is welded and fixed.
4. lithium rechargeable battery core capsule structure according to claim 3, it is characterised in that：The insulating film
（3）For overall structure, including with the matched cephacoria in two sides before and after core（31）And caudacoria（32）, the cephacoria（31）After and
Film（32）It is symmetrical arranged and the two passes through intermediate junctional membrane（33）It is connected, the junctional membrane（33）With cephacoria（31）And caudacoria
（32）Between formed for core assembly（2）With anode rivet（6）And cathode rivet（7）The notch of welding（34）, the company
Connect film（33）It is equipped with and positioning convex platform（41）, liquid injection hole positioning convex platform（42）, spherical buckle（43）, first row stomata（14）Position
Put the first positioning hole to match（331）, the first fluid injection location hole（332）, the first block button hole（333）And second row stomata
（334）, the junctional membrane（33）On be additionally provided with the explosion-proof valve outlet hole to match with explosion-proof valve position（335）.
5. lithium rechargeable battery core capsule structure according to claim 4, it is characterised in that：The cephacoria（31）'s
Three free margins are outward extended with first side respectively（311）, second side（312）And third side（313）, the third
Side（313）It is equipped with third gas vent（314）, and third side（313）Both ends further respectively have the first flanging（315）And
Second flanging（316）, the first side（311）, second side（312）, third side（313）With cephacoria（31）Connection
Place is equipped with folding line, first flanging（315）, the second flanging（316）With third side（313）Junction be equipped with folding line；
The caudacoria（32）Three articles of free margins on be outward extended with four side respectively（321）, the 5th side（322）And the 6th
Side（323）, the 6th side（323）It is equipped with the 4th gas vent（324）, the four side（321）, the 5th side
Side（322）, the 6th side（323）With caudacoria（32）Junction be equipped with folding line, and four side（321）, the 5th side（322）
Width be less than first side（311）, second side（312）Width, the 6th side（323）Width be less than third side
（313）Width.
6. lithium rechargeable battery core capsule structure according to claim 5, it is characterised in that：The first side
（311）, four side（321）To core after folding（21）Left side form package, four side during package（321）Inside,
A side（311）Outside；The second side（312）, the 5th side（322）To core after folding（21）Right side formed packet
It wraps up in, the 5th side during package（322）Inside, second side（312）Outside；The third side（313）And the 6th side
（323）To core after folding（21）Bottom form package, the 6th side during package（323）Inside, third side（313）
Outside, first flanging（315）And second flanging（316）To core after folding（21）Base angle formed package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751729.8U CN207587896U (en) | 2017-12-14 | 2017-12-14 | A kind of lithium rechargeable battery core capsule structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721751729.8U CN207587896U (en) | 2017-12-14 | 2017-12-14 | A kind of lithium rechargeable battery core capsule structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207587896U true CN207587896U (en) | 2018-07-06 |
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ID=62737973
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| CN201721751729.8U Active CN207587896U (en) | 2017-12-14 | 2017-12-14 | A kind of lithium rechargeable battery core capsule structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963177A (en) * | 2018-09-13 | 2018-12-07 | 中兴高能技术有限责任公司 | A kind of lithium battery electric core and lithium battery electric core packet insulate film method |
| CN110282173A (en) * | 2019-06-20 | 2019-09-27 | 湖北金泉新材料有限责任公司 | A kind of method for coating and battery of core |
| CN110729422A (en) * | 2019-11-20 | 2020-01-24 | 凌帕新能源科技(上海)有限公司 | Battery cover plate assembly, assembling method and manufacturing method thereof and battery cell |
| 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 |
| CN113644357A (en) * | 2021-08-02 | 2021-11-12 | 合肥国轩高科动力能源有限公司 | Battery based on parallel connection of multiple winding cores and assembly method thereof |
-
2017
- 2017-12-14 CN CN201721751729.8U patent/CN207587896U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963177A (en) * | 2018-09-13 | 2018-12-07 | 中兴高能技术有限责任公司 | A kind of lithium battery electric core and lithium battery electric core packet insulate film method |
| CN110282173A (en) * | 2019-06-20 | 2019-09-27 | 湖北金泉新材料有限责任公司 | A kind of method for coating and battery of core |
| CN110729422A (en) * | 2019-11-20 | 2020-01-24 | 凌帕新能源科技(上海)有限公司 | Battery cover plate assembly, assembling method and manufacturing method thereof and battery cell |
| 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 |
| CN113644357A (en) * | 2021-08-02 | 2021-11-12 | 合肥国轩高科动力能源有限公司 | Battery based on parallel connection of multiple winding cores and assembly method thereof |
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