CN206774588U - A kind of full lug quadrate lithium battery - Google Patents
A kind of full lug quadrate lithium battery Download PDFInfo
- Publication number
- CN206774588U CN206774588U CN201720642818.2U CN201720642818U CN206774588U CN 206774588 U CN206774588 U CN 206774588U CN 201720642818 U CN201720642818 U CN 201720642818U CN 206774588 U CN206774588 U CN 206774588U
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- CN
- China
- Prior art keywords
- pole
- cover plate
- full lug
- negative pole
- hole
- 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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- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
A kind of full lug quadrate lithium battery, including li battery shell, li battery shell includes housing, cover plate, bottom plate, housing is hollow aluminium section bar, securing cover plate is respectively welded in both ends, bottom plate, cover plate is provided with liquid injection hole and safety valve, cover plate is provided with least one bar hole, negative pole pole is worn in each hole, negative pole pole side opens up the fixing groove of ring-type, the hole wall of cover plate bar hole is sticked into the fixing groove, sealing ring is lined between pole and cover plate, pole is hollow structure, the full lug of negative pole is worn in it, the area of section of the hollow space of pole is more than the area of section of the full lug of negative pole, fixed negative pole minor flaps outside tent, pole, the full lug of negative pole, by being welded into an entirety between negative pole minor flaps, GND is integrally formed in it.Compared to the prior art, the utility model sets the full lug of bar shaped, expands the surface area of lug, and the battery has the advantages that production efficiency is high, technique is simple, cyclicity is good, high rate performance protrudes.
Description
Technical field
A kind of preparation method of full lug lithium battery is the utility model is related to, belongs to technical field of lithium batteries.
Background technology
At present because lithium battery has the advantages that high energy density, power density height, recycling often, in intelligent hand
It is widely used in the equipment such as machine, wearable device, electric bicycle and new-energy automobile, turns into and solve energy crisis and ring
The key of the global problems such as border pollution.Increasingly perfect with electric vehicle engineering, electric automobile and hybrid electric vehicle are from people
Daily life it is more and more nearer, there is huge business opportunity, while electric automobile for it to providing the lithium ion battery of energy
Performance propose higher requirement.
Widely used duricrust lithium battery in the market, typically takes stacked or takeup type.Stacked rectangular cell
The problems such as production efficiency is relatively low, uniformity is poor, discharge-rate is low, cycle life is short, coiled square battery production efficiency is higher,
But battery typically takes the mode that soldering polar ear drains, and due to lug limited amount, battery high rate performance is poor, it is difficult to electronic
Automobile and energy storage terminal need the application of high-multiplying power discharge.
Utility model content
The purpose of this utility model is and a kind of takeup type side designed in order to overcome the drawbacks described above of existing rectangular cell
The full lug battery of shape.The battery has the advantages that production efficiency is high, technique is simple, cyclicity is good, high rate performance protrudes.
The technical solution of the utility model is specially：
A kind of full lug quadrate lithium battery, including li battery shell, li battery shell include housing, cover plate, bottom plate, housing
For hollow aluminium section bar, securing cover plate, bottom plate is respectively welded in both ends, and cover plate is provided with liquid injection hole and safety valve, and cover plate is provided with least
One bar hole, negative pole pole is worn in each hole, negative pole pole side opens up the fixing groove of ring-type, lid is sticked into the fixing groove
The hole wall in slab hole, sealing ring being lined between pole and cover plate, pole is hollow structure, wears the full lug of negative pole in it,
The area of section of the hollow space of pole is more than the area of section of the full lug of negative pole, the space plug between pole and the full lug of negative pole
Bar, tent fixes negative pole minor flaps outside, by being welded into an entirety between the full lug of pole, negative pole, negative pole minor flaps, its
GND is integrally formed；Bottom plate is provided with the bar hole with cover plate as many, and Positive Poles, Positive Poles side are worn in each hole
Face opens up the fixing groove of ring-type, and the hole wall of bottom plate bar hole is sticked into the fixing groove, is lined between Positive Poles and bottom plate close
Seal, Positive Poles are hollow structure, and the full lug of positive pole is worn in it, and the area of section of the hollow space of Positive Poles is more than just
The area of section of extremely full lug, the spatial embedding tent between Positive Poles and the full lug of positive pole, fixation is just minimum outside for tent
Cover plate, by being welded into an entirety between the full lug of Positive Poles, positive pole, positive pole minor flaps, battery is being integrally formed just in it
Pole；Be battery core in battery case, battery core is that sandwich construction winds and formed, respectively barrier film, anode pole piece, barrier film, cathode pole piece,
The center section of barrier film, anode pole piece and cathode pole piece is electric energy storage portion, the end multilayer anode pole piece and negative pole at both ends
Pole piece, which is respectively welded, to be fixed together to form the full lug of positive pole, the full lug of negative pole.
The hole wall of cover plate bar hole is the outer male structure of Z-shaped, and the lower surface for making the lower surface of pole overall with cover plate is located at
Approximately the same plane, the hole wall of bottom plate bar hole are the outer male structure of Z-shaped, make the upper surface of the Positive Poles upper table overall with bottom plate
Face is located at approximately the same plane.
Tent is made up of elastic caoutchouc.
All of above welding is all agitating friction weldering.
Compared to the prior art, the utility model sets the full lug of bar shaped, expands the surface area of lug, and the battery has
The advantages that production efficiency is high, technique is simple, cyclicity is good, high rate performance protrudes.
Brief description of the drawings
Fig. 1 is the general structure front view and top view of the utility model patent.
Fig. 2 is the utility model patent general structure left view.
Fig. 3 is the utility model patent electric core winding structure chart.
Fig. 4 is the utility model patent cell polar ear corner cut schematic diagram.
Fig. 5 is the utility model patent covering plate structure figure.
Fig. 6 is the utility model patent base arrangement figure.
Fig. 7 is the utility model patent shell structure figure.
Embodiment
Such as Fig. 1, a kind of full lug quadrate lithium battery, including li battery shell, li battery shell include housing 1, cover plate 2,
Bottom plate 15, housing 1 are hollow aluminium section bar, and securing cover plate 2, bottom plate 15 is respectively welded in both ends.Cover plate is provided with liquid injection hole 31 and peace
Full valve 32, it is convenient to inject electrolyte.Housing wall thickness 0.5mm, cover plate and bottom plate are aluminium sheet, thickness 1-1.5mm, cover plate, bottom plate
Dipole column is equipped with, bottom plate is Positive Poles, is negative pole pole on cover plate, Positive Poles material is aluminium, and negative pole pole material is
Copper, Positive Poles and bottom plate, it is sealing ring between negative pole pole and cover plate, makes Positive Poles and bottom plate, negative pole pole and cover plate
Realize sealing.
Such as Fig. 2, Fig. 5, cover plate 2 is provided with least one bar hole（It is two in figure）, negative pole pole 4 is worn in each hole,
The side of negative pole pole 4 opens up the fixing groove of ring-type, the hole wall of the bar hole of cover plate 2 is sticked into the fixing groove, in pole 4 and cover plate 2
Between be lined with sealing ring 3, in order to increase the volume of inside, the hole wall of the bar hole of cover plate 2 is the outer male structure of Z-shaped, makes pole 4
The lower surface lower surface overall with cover plate 2 is located at approximately the same plane.Pole 4 is hollow structure, wears the full lug 5 of negative pole in it,
The full lug 5 of negative pole is assembled in pole 4 for convenience, the area of section of the hollow space of pole 4 is more than cutting for the full lug 5 of negative pole
Face area, after the completion of assembling, tent 7 made of the spatial embedding elastic caoutchouc between pole 4 and the full lug 5 of negative pole, tent 7
Outer fixed negative pole minor flaps 6, by being welded into an entirety between the full lug 5 of pole 4, negative pole, negative pole minor flaps 6, its is whole
Body forms GND.
Such as Fig. 2, Fig. 6, bottom plate 15 is provided with the bar hole with cover plate 2 as many, Positive Poles 8, positive pole is worn in each hole
The side of pole 8 opens up the fixing groove of ring-type, the hole wall of the bar hole of bottom plate 15 is sticked into the fixing groove, in Positive Poles 8 and bottom plate
Sealing ring 3 is lined between 15, in order to increase the volume of inside, the hole wall of the bar hole of bottom plate 15 is the outer male structure of Z-shaped, makes positive pole
The upper surface of pole 8 upper surface overall with bottom plate 15 is located at approximately the same plane.Positive Poles 8 are hollow structure, are worn in it
The full lug 9 of positive pole, assembles the full lug 9 of positive pole in pole 4 for convenience, and the area of section of the hollow space of Positive Poles 8 is big
In the area of section of the full lug 9 of positive pole, after the completion of assembling, the spatial embedding elasticity between Positive Poles 8 and the full lug 9 of positive pole
Tent 7 made of rubber, fixed positive pole minor flaps 10 outside tent 7, the full lug 9 of Positive Poles 8, positive pole, positive pole minor flaps 10 it
Between by being welded into an entirety, anode is integrally formed in it.
If the profile of bar hole approaches with full lug, the difficulty that full lug is drawn from the hollow space of negative pole pole can be increased
Degree, particularly robotic asssembly, therefore, the area of section of the hollow space of Positive Poles 8 is more than the section face of the full lug 9 of positive pole
Product, still, it can so increase the unstability of its connection.So tent made of elastic caoutchouc is filled in its gap, in order to
Electric conductivity is not influenceed, minor flaps, perfect combination are fixed in the outside of adhesive tape again.
Be battery core such as Fig. 1, Fig. 3, Fig. 4, in battery case, battery core is that sandwich construction winds and formed, respectively barrier film 13, just
Pole pole piece 12, barrier film 13, cathode pole piece 14, barrier film 13, the center section of anode pole piece 12 and cathode pole piece 14 is power storage
Part（General two sides are coated with active material）, end multilayer anode pole piece 12 and the cathode pole piece 14 at both ends are respectively welded admittedly
It is scheduled on and forms the full lug 9 of positive pole, the full lug 5 of negative pole together.
Such as Fig. 4, corner cut is all carried out by pole, the full lug 9 of positive pole, the left and right sides of the full lug 5 of negative pole in order to facilitate it,
Cut-out is referring to Tu4Zhong A areas.
All of above welding is all agitating friction weldering.
In order to increase intensity, cover plate, housing and bottom plate are handled using differential arc oxidization technique, form surface high-quality
Intensified ceramic film layer.The case hardness of material can so be significantly increased, good abrasion resistance properties, good is resistance to
Hot and corrosion resistance, there are good insulating properties.
The preparation method of this battery：
The first step, cover plate, housing and bottom plate are all handled using differential arc oxidization technique, surface is formed high-quality reinforcing
Ceramic membrane.
Second step, bottom plate and case weld are fixed.
3rd step, by barrier film, anode pole piece, barrier film, cathode pole piece, barrier film sequential volume around formed battery core, the end at both ends
Portion's multilayer anode pole piece is respectively welded with cathode pole piece and is fixed together to form the full lug of positive pole, the full lug of negative pole, the full pole of positive pole
The left and right sides of the full lug of ear, negative pole all carries out corner cut.
4th step, battery core is entered into shell, the full lug of positive pole is drawn from the hollow space of Positive Poles, fills in rubber tent, embedding
Enter positive pole minor flaps, positive pole minor flaps, Positive Poles are welded.
5th step, covers cover plate, and the full lug of negative pole is drawn from the hollow space of negative pole pole, fills in rubber tent, embedding
Enter negative pole minor flaps, by negative pole tegillum plate weld, cover plate and case weld.
6th step, inject electrolyte from the liquid injection hole and safety valve of cover plate, after the completion of seal, turn into battery.
Above-mentioned all welding are all agitating friction weldering.
Claims (4)
1. a kind of full lug quadrate lithium battery, including li battery shell, li battery shell include housing（1）, cover plate（2）, bottom plate
（15）, housing（1）For hollow aluminium section bar, securing cover plate is respectively welded in both ends（2）, bottom plate（15）, cover plate is provided with liquid injection hole
（31）And safety valve（32）, it is characterised in that：
Cover plate（2）Provided with least one bar hole, negative pole pole is worn in each hole（4）, negative pole pole（4）Side opens up ring-type
Fixing groove, stick into cover plate in the fixing groove（2）The hole wall of bar hole, in pole（4）With cover plate（2）Between be lined with sealing ring
（3）, pole（4）The full lug of negative pole is worn for hollow structure, in it（5）, pole（4）Hollow space area of section be more than it is negative
Extremely full lug（5）Area of section, pole（4）With the full lug of negative pole（5）Between space tent（7）, tent（7）Outer fixation is born
Minimum cover plate（6）, pole（4）, the full lug of negative pole（5）, negative pole minor flaps（6）Between by being welded into an entirety, its is whole
Body forms GND；
Bottom plate（15）It is provided with and cover plate（2）Bar hole as many, Positive Poles are worn in each hole（8）, Positive Poles（8）Side
Face opens up the fixing groove of ring-type, and bottom plate is sticked into the fixing groove（15）The hole wall of bar hole, in Positive Poles（8）With bottom plate（15）
Between be lined with sealing ring（3）, Positive Poles（8）The full lug of positive pole is worn for hollow structure, in it（9）, Positive Poles（8）In
The area of section of empty part is more than the full lug of positive pole（9）Area of section, in Positive Poles（8）With the full lug of positive pole（9）Between
Spatial embedding tent（7）, tent（7）Outer fixed positive pole minor flaps（10）, Positive Poles（8）, the full lug of positive pole（9）, positive pole
Minor flaps（10）Between by being welded into an entirety, anode is integrally formed in it；
It is battery core in battery case, battery core is that sandwich construction winding forms, respectively barrier film（13）, anode pole piece（12）, barrier film
（13）, cathode pole piece（14）, barrier film（13）, anode pole piece（12）With cathode pole piece（14）Center section be power storage portion
Point, the end multilayer anode pole piece at both ends（12）With cathode pole piece（14）It is respectively welded and is fixed together to form the full lug of positive pole
（9）, the full lug of negative pole（5）.
2. full lug quadrate lithium battery as claimed in claim 1, it is characterised in that：Cover plate（2）The hole wall of bar hole is Z-shaped
Outer male structure, makes pole（4）Lower surface and cover plate（2）Overall lower surface is located at approximately the same plane, bottom plate（15）Bar hole
Hole wall be Z-shaped outer male structure, make Positive Poles（8）Upper surface and bottom plate（15）Overall upper surface is positioned at same flat
Face.
3. full lug quadrate lithium battery as claimed in claim 2, it is characterised in that：Tent（7）It is made up of elastic caoutchouc.
4. full lug quadrate lithium battery as claimed in claim 1, it is characterised in that：All of above welding is all agitating friction
Weldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720642818.2U CN206774588U (en) | 2017-06-05 | 2017-06-05 | A kind of full lug quadrate lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720642818.2U CN206774588U (en) | 2017-06-05 | 2017-06-05 | A kind of full lug quadrate lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206774588U true CN206774588U (en) | 2017-12-19 |
Family
ID=60635970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720642818.2U Expired - Fee Related CN206774588U (en) | 2017-06-05 | 2017-06-05 | A kind of full lug quadrate lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206774588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204408A (en) * | 2017-06-05 | 2017-09-26 | 林州朗坤科技有限公司 | A kind of full lug quadrate lithium battery and preparation method thereof |
-
2017
- 2017-06-05 CN CN201720642818.2U patent/CN206774588U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204408A (en) * | 2017-06-05 | 2017-09-26 | 林州朗坤科技有限公司 | A kind of full lug quadrate lithium battery and preparation method thereof |
| CN107204408B (en) * | 2017-06-05 | 2023-08-04 | 林州朗坤科技有限公司 | Full-lug square lithium battery and preparation 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20200605 |