CN107204408A - A kind of full lug quadrate lithium battery and preparation method thereof - Google Patents
A kind of full lug quadrate lithium battery and preparation method thereof Download PDFInfo
- Publication number
- CN107204408A CN107204408A CN201710415562.6A CN201710415562A CN107204408A CN 107204408 A CN107204408 A CN 107204408A CN 201710415562 A CN201710415562 A CN 201710415562A CN 107204408 A CN107204408 A CN 107204408A
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- Prior art keywords
- pole
- cover plate
- full lug
- positive
- lug
- Prior art date
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000011796 hollow space material Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- 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 two 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, space tent between pole and the full lug of negative pole, negative pole minor flaps are fixed outside tent.The invention also discloses a kind of preparation method of full lug quadrate lithium battery.Compared to the prior art, the present invention 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 is protruded.
Description
Technical field
The present invention relates to a kind of preparation method of full lug lithium battery, belong to technical field of lithium batteries.
Background technology
At present because lithium battery has the advantages that energy density is high, power density is high, recycle often, in intelligent hand
It is widely used in the equipment such as machine, wearable device, electric bicycle and new-energy automobile, as solution 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, huge business opportunity is there is, while electric automobile is to providing the lithium ion battery of energy for it
Performance propose higher requirement.
Widely used duricrust lithium battery, typically takes stacked or takeup type in the market.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 of soldering polar ear drainage, 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.
The content of the invention
The invention aims to overcome the drawbacks described above of existing rectangular cell, and a kind of takeup type designed is square complete
Lug battery.The battery has the advantages that production efficiency is high, technique is simple, cyclicity is good, high rate performance is protruded.
Technical scheme is specially：
A kind of full lug quadrate lithium battery, including li battery shell, li battery shell include housing, cover plate, bottom plate, during housing is
Securing cover plate, bottom plate is respectively welded in empty aluminium section bar, two ends, and cover plate is provided with liquid injection hole and safety valve, and cover plate is provided with least one
Negative pole pole is worn in bar hole, each hole, negative pole pole side opens up in the fixing groove of ring-type, the fixing groove and sticks into cover plate bar
The hole wall in shape hole, is lined with sealing ring between pole and cover plate, and pole is hollow structure, wears the full lug of negative pole, pole in it
Hollow space area of section be more than the full lug of negative pole area of section, the space tent between pole and the full lug of negative pole,
Negative pole minor flaps are fixed outside tent, by being welded into an entirety between the full lug of pole, negative pole, negative pole minor flaps, its is whole
Body formation GND；Bottom plate, which is provided with the bar hole with cover plate as many, each hole, wears Positive Poles, Positive Poles side
The fixing groove of ring-type is opened up, the hole wall of bottom plate bar hole is sticked into the fixing groove, sealing is lined between Positive Poles and bottom plate
Circle, 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 positive pole
Positive pole tegillum is fixed outside the area of section of full lug, the spatial embedding tent between Positive Poles and the full lug of positive pole, tent
Plate, by being welded into an entirety between the full lug of Positive Poles, positive pole, positive pole minor flaps, anode is integrally formed in it；
Be battery core in battery case, battery core is that sandwich construction winding is formed, respectively barrier film, anode pole piece, barrier film, cathode pole piece, every
The center section of film, anode pole piece and cathode pole piece is electric energy storage portion, end multilayer anode pole piece and the negative pole pole at two ends
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 is the outer male structure of Z-shaped, the upper table for making the upper surface of Positive Poles 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.
A kind of preparation method of full lug quadrate lithium battery described above：
The first step, cover plate, housing and bottom plate are all handled using differential arc oxidization technique, surface is formed the intensified ceramic of high-quality
Film；
Second step, bottom plate is fixed with case weld；
3rd step, the sequential volume by barrier film, anode pole piece, barrier film, cathode pole piece, barrier film is more around battery core, the end at two ends is formed
Layer anode pole piece and cathode pole piece, which are respectively welded, to be fixed together to form the full lug of positive pole, the full lug of negative pole, the full lug of positive pole, negative
The left and right sides of extremely full lug all carries out corner cut；
4th step, shell is entered by battery core, and the full lug of positive pole is drawn from the hollow space of Positive Poles, fills in rubber tent, insertion is just
Minimum cover plate, 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, embedded negative
Minimum cover plate, by negative pole tegillum plate weld, cover plate and case weld；
6th step, electrolyte is injected from the liquid injection hole and safety valve of cover plate, after the completion of seal, as battery.
Above-mentioned all welding are all agitating friction weldering.
Compared to the prior art, the present invention sets the full lug of bar shaped, expands the surface area of lug, and the battery has production
The advantages of efficiency high, technique are simple, cyclicity is good, high rate performance is protruded.
Brief description of the drawings
Fig. 1 is the general structure front view and top view of patent of the present invention.
Fig. 2 is patent general structure left view of the present invention.
Fig. 3 is patent electric core winding structure chart of the present invention.
Fig. 4 is patent cell polar ear corner cut schematic diagram of the present invention.
Fig. 5 is patent covering plate structure figure of the present invention.
Fig. 6 is patent base arrangement figure of the present invention.
Fig. 7 is patent shell structure figure of the present invention.
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 is hollow aluminium section bar, and securing cover plate 2, bottom plate 15 is respectively welded in two ends.Cover plate is provided with liquid injection hole 31 and peace
Full valve 32, convenient injection 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, it is negative pole pole on Positive Poles, cover plate that bottom plate, which is, and Positive Poles material is aluminium, and negative pole pole material is
Copper, Positive Poles and bottom plate, are sealing ring between negative pole pole and cover plate, make 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 hole wall that the bar hole of cover plate 2 is sticked into the fixing groove of ring-type, 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
Lower surface is located at approximately the same plane with the overall lower surface of cover plate 2.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, the tent 7 that the spatial embedding elastic caoutchouc between pole 4 and the full lug 5 of negative pole is made, 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 formation anode.
Such as Fig. 2, Fig. 6, bottom plate 15 is provided with the bar hole with cover plate 2 as many, each hole and wears Positive Poles 8, positive pole
The side of pole 8 opens up the hole wall that the bar hole of bottom plate 15 is sticked into the fixing groove of ring-type, 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 is located at approximately the same plane with the overall upper surface of bottom plate 15.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
The tent 7 that rubber is made, the outer fixed positive pole minor flaps 10 of 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, GND is integrally formed in it.
If the profile of bar hole is approached 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, can so increase the unstability of its connection.So the tent that elastic caoutchouc is made 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.
It is battery core such as Fig. 1, Fig. 3, Fig. 4, in battery case, battery core is that sandwich construction winding is formed, respectively barrier film 13, just
The center section of pole pole piece 12, barrier film 13, cathode pole piece 14, barrier film 13, anode pole piece 12 and cathode pole piece 14 is power storage
Part（General two sides coating active material）, end multilayer anode pole piece 12 and the cathode pole piece 14 at two 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, it is by pole for convenience, and the full lug 9 of positive pole, the left and right sides of the full lug 5 of negative pole all carry out corner cut,
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, surface is formed high-quality
Intensified ceramic film layer.The case hardness of material can be so significantly increased, good abrasion resistance properties, good is resistance to
Hot and corrosion resistance, there is 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 the intensified ceramic of high-quality
Film.
Second step, bottom plate is fixed with case weld.
3rd step, by barrier film, anode pole piece, barrier film, cathode pole piece, barrier film sequential volume around formed battery core, the end at two 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, shell is entered by battery core, and 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, rubber tent is filled in, embedding
Enter negative pole minor flaps, by negative pole tegillum plate weld, cover plate and case weld.
6th step, electrolyte is injected from the liquid injection hole and safety valve of cover plate, after the completion of seal, as battery.
Above-mentioned all welding are all agitating friction weldering.
Claims (6)
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 two 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 formation GND；
Bottom plate（15）It is provided with and cover plate（2）Positive Poles are worn in bar hole as many, 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（The hole wall of 15 bar holes, 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 is formed, 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 two 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 located 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.
5. a kind of preparation method of full lug quadrate lithium battery as claimed in claim 3：It is characterized in that：
The first step, cover plate, housing and bottom plate are all handled using differential arc oxidization technique, surface is formed the intensified ceramic of high-quality
Film；
Second step, bottom plate is fixed with case weld；
3rd step, the sequential volume by barrier film, anode pole piece, barrier film, cathode pole piece, barrier film is more around battery core, the end at two ends is formed
Layer anode pole piece and cathode pole piece, which are respectively welded, to be fixed together to form the full lug of positive pole, the full lug of negative pole, the full lug of positive pole, negative
The left and right sides of extremely full lug all carries out corner cut；
4th step, shell is entered by battery core, and the full lug of positive pole is drawn from the hollow space of Positive Poles, fills in rubber tent, insertion is just
Minimum cover plate, 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, embedded negative
Minimum cover plate, by negative pole tegillum plate weld, cover plate and case weld；
6th step, electrolyte is injected from the liquid injection hole and safety valve of cover plate, after the completion of seal, as battery.
6. the preparation method of full lug quadrate lithium battery as claimed in claim 5, it is characterised in that：It is above-mentioned it is all welding be all
Agitating friction weldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415562.6A CN107204408B (en) | 2017-06-05 | 2017-06-05 | Full-lug square lithium battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415562.6A CN107204408B (en) | 2017-06-05 | 2017-06-05 | Full-lug square lithium battery and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107204408A true CN107204408A (en) | 2017-09-26 |
| CN107204408B CN107204408B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710415562.6A Active CN107204408B (en) | 2017-06-05 | 2017-06-05 | Full-lug square lithium battery and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461700A (en) * | 2018-02-02 | 2018-08-28 | 惠州拓邦电气技术有限公司 | A kind of full lug type lithium battery of high magnification and preparation method thereof |
| CN108493488A (en) * | 2018-01-27 | 2018-09-04 | 林州朗坤科技有限公司 | A kind of electrochemical appliance and preparation method thereof |
| CN109244526A (en) * | 2018-11-14 | 2019-01-18 | 江苏万达新能源科技股份有限公司 | A kind of novel battery |
| CN110767848A (en) * | 2019-11-21 | 2020-02-07 | 四川新敏雅电池科技有限公司 | Battery cover plate assembly and battery cell |
| CN111276663A (en) * | 2020-03-30 | 2020-06-12 | 湖北亿纬动力有限公司 | Single battery, battery module and energy storage device |
| CN112259795A (en) * | 2020-04-30 | 2021-01-22 | 蜂巢能源科技有限公司 | Battery cell assembling method and battery cell |
| CN113036228A (en) * | 2021-03-12 | 2021-06-25 | 傲普(上海)新能源有限公司 | Lithium ion battery manufacturing method and lithium ion battery |
| CN113826268A (en) * | 2020-05-18 | 2021-12-21 | 宁德新能源科技有限公司 | Battery and electric device with same |
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