CN110212124A - A kind of battery cap and preparation method thereof based on blocky pole - Google Patents
A kind of battery cap and preparation method thereof based on blocky pole Download PDFInfo
- Publication number
- CN110212124A CN110212124A CN201910646183.7A CN201910646183A CN110212124A CN 110212124 A CN110212124 A CN 110212124A CN 201910646183 A CN201910646183 A CN 201910646183A CN 110212124 A CN110212124 A CN 110212124A
- Authority
- CN
- China
- Prior art keywords
- pole
- blocky
- cover board
- plastic parts
- battery cap
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- Pending
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- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 72
- 229920003023 plastic Polymers 0.000 claims abstract description 72
- 239000011148 porous material Substances 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 6
- -1 Copper-Aluminum compound Chemical class 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000001307 helium Substances 0.000 description 6
- 229910052734 helium Inorganic materials 0.000 description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
- 239000004734 Polyphenylene sulfide Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920000069 polyphenylene sulfide Polymers 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000012797 qualification Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- LNYTUARMNSFFBE-UHFFFAOYSA-N 4-(diethylazaniumyl)benzoate Chemical compound CCN(CC)C1=CC=C(C(O)=O)C=C1 LNYTUARMNSFFBE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
-
- 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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
-
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
-
- 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
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of battery cap and preparation method thereof based on blocky pole, battery cap include cover board, plastic parts and blocky pole；Blocky pole is fixedly connected with cover board by plastic parts；Blocky pole is towards offering a blocky pole slot on each face of cover board；Plastic parts is set between cover board and blocky pole；Plastic parts fills blocky pole slot, and package cover board is fixedly connected with each face of the blocky pole towards cover board towards the part of blocky pole.The present invention is fixedly connected with blocky pole with cover board by plastic parts, and blocky pole slot is opened up on each face of the blocky pole towards cover board and plastic parts fills blocky pole slot, so that combining between blocky pole and plastic parts even closer.It can ensure that the air-tightness of battery cap is good by blocky pole slot, and the present invention opens up nano-pore by chemical attack also on blocky pole and cover board, plastic parts penetrates into the combination dynamics that plastic parts and blocky pole, cover board can be further promoted in nano-pore.
Description
Technical field
The present invention relates to field of batteries more particularly to a kind of battery caps and preparation method thereof based on blocky pole.
Background technique
At present in the battery cap of new-energy automobile industry power battery, blocky pole and cover board are generally using assembling work
Skill.Friction welding processing first specifically is carried out to positive grade/cathode bulk pole according to demand, friction welding processing is mainly in block
Shape pole uses when being composite construction, and copper sheet and aluminium flake are such as formed Copper-Aluminum compound bulk pole by friction welding.Then will
The sealing ring and PP material of fluorubber material are molded the lower plastic parts to be formed, and are assembled on positive grade/cathode bulk pole；It recycles
Stamping forming aluminum cover board is assembled on sealing ring and lower plastic parts, and aluminum cover board squeezes sealing ring to allow sealing ring to generate
Certain compression factor, to avoid gas leakage；PPS Shooting Technique is finally utilized, by cover board and each part such as sealing ring and lower plastic cement
It is fixed, it is ensured that cover board forms cover board together with multiple part combinations.
There are certain risks for current structure, and since whole components are more, each parts machining production process is multiple
It is miscellaneous, it is related to the quality control of numerous processing and finished product assembling link, the consistency qualification rate of whole finished product is low, in addition friction welding
Cannot 100% effectively welding, it to be currently all insoluble problem of entire friction welding industry that there are risk of breakage.
Summary of the invention
The purpose of the present invention is to provide a kind of battery cap and preparation method thereof based on blocky pole, to solve cover board
The low problem of qualification rate.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of battery cap based on blocky pole, including cover board, plastic parts and at least one blocky pole；The bulk
Pole is fixedly connected with cover board by the plastic parts；
The cover board hole for the insertion of blocky pole is offered on the cover board, it is opposite that the cover board hole penetrates through the cover board
Two plate faces；The bulk pole is inserted into the cover board hole, and the bulk pole is towards offering one on each face of cover board
Blocky pole slot；
The plastic parts is set between the cover board and blocky pole；The plastic parts filling blocky pole slot, packet
The cover board is wrapped up in towards the part of blocky pole, and is fixedly connected with the blocky pole towards each face of cover board.
Optionally, the hole wall center of the cover board hole is protruding with a cover board protrusion, the cover board to the direction of blocky pole
Protrusion forms a cascaded surface with the bottom surface of the top surface of cover board, cover board respectively；The plastic parts includes the cover board protrusion and ladder
Face.
Optionally, the surface that the surface and the cover board that the blocky pole is connected with plastic parts are connected with plastic parts
Multiple nano-pores are offered, the plastic parts penetrates into the nano-pore.
Optionally, the top surface of the blocky pole is protruding with a blocky pole protrusion, the bulk pole protrusion and bulk
The top surface of pole forms a cascaded surface.
Optionally, the aperture of the nano-pore is 70-120nm, and hole depth is 2-5 μm.
Optionally, the air tightness test slip of the battery cap is less than 10-7 (Pam3)/s.
Optionally, the plastic parts is PPS plastic parts or PBT plastic parts.
Optionally, the battery cap includes two blocky poles, sets that there are two cover board hole, two bulks on the cover board
Pole and two cover board holes correspond；Two blocky poles are respectively the blocky pole of anode and cathode bulk pole；
The cover board is Aluminum cover, and the blocky pole of anode is positive aluminium block shape pole, and the cathode bulk pole is
Cathode copper billet shape pole or cathode Copper-Aluminum compound bulk pole.
Optionally, the cover board is equipped with liquid injection hole, and the liquid injection hole is located between two blocky poles.
A kind of preparation method of battery cap as described above, comprising the following steps:
S1, multiple nanometers are opened up by chemical attack on the surface on the surface of blocky pole and cover board towards blocky pole
Hole；
S2, blocky pole is inserted into cover board hole；
S3, in the junction injection moulding plastic of blocky pole and cover board, form plastic parts, make blocky pole and cover board is fixed connects
It connects.
A kind of lithium ion battery, including battery top made from battery cap as described above or preparation method as described above
Lid.
Compared with prior art, the invention has the following advantages:
The present invention is fixedly connected with blocky pole with cover board by plastic parts, on each face of the blocky pole towards cover board
It opens up blocky pole slot and plastic parts fills blocky pole slot, so that being combined between blocky pole and plastic parts even closer.
Although the contact area between blocky pole and cover board is smaller, this defect can be made up by blocky pole slot, ensure battery top
The air-tightness of lid is good.Further, the present invention also opens up nano-pore, plastic parts by chemical attack on blocky pole and cover board
The combination dynamics that can promote plastic parts and blocky pole, cover board in nano-pore is penetrated into, the air-tightness of battery cap is further promoted.
Prove the air tightness test slip of battery cap less than 10 by test-7(Pa·m3)/s meets the air-tightness requirement of battery.
Also, compared to the prior art, reduces the presence of lower plastic parts and sealing ring, the qualification rate of finished product can be promoted, reduce cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Structure depicted in this specification attached drawing, ratio, size etc., only to cooperate the revealed content of specification,
So that those skilled in the art understands and reads, enforceable qualifications are not intended to limit the invention, therefore do not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size can be generated not influencing the present invention
The effect of and the purpose that can reach under, should all still fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the cross-sectional view for the battery cap that the embodiment of the present invention 1 provides.
Fig. 2 is the schematic diagram for the battery cap that the embodiment of the present invention 1 provides.
Fig. 3 is the microscope schematic diagram for the nano-pore that the embodiment of the present invention 1 provides.
It illustrates: 1, cover board；11, cover board protrusion；2, blocky pole；21, blocky pole slot；22, blocky pole protrusion；
3, plastic parts；4, liquid injection hole.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
In the description of the present invention, it is to be understood that, term " on ", "lower", "top", "bottom", "inner", "outside" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.It should be noted that when a component is considered as " connection " another component,
It can be directly to another component or may be simultaneously present the component being centrally located.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
Fig. 1 to Fig. 2 is please referred to, the present embodiment 1 provides a kind of battery cap based on blocky pole.
The battery cap includes cover board 1, plastic parts 3 and at least one blocky pole 2；The bulk pole 2 and cover board 1
It is fixedly connected by the plastic parts 3；
1 hole of cover board for the insertion of blocky pole 2 is offered on the cover board 1,1 hole of cover board penetrates through the cover board 1
Two opposite plate faces；The bulk pole 2 is inserted into 1 hole of cover board, and the bulk pole 2 is towards on each face of cover board 1
Offer a blocky pole slot 21；
The plastic parts 3 is set between the cover board 1 and blocky pole 2；The plastic parts 3 fills the blocky pole slot
21, the cover board 1 is wrapped up towards the part of blocky pole 2, and is fixedly connected with the blocky pole 2 towards each face of cover board 1.
In the present embodiment, the hole wall center in 1 hole of cover board is protruding with a cover board protrusion to the direction of blocky pole 2
11, the cover board protrusion 11 forms a cascaded surface with the bottom surface of the top surface of cover board 1, cover board 1 respectively；The plastic parts 3 includes institute
State cover board protrusion 11 and cascaded surface.
Although the contact area between blocky pole 2 and cover board 1 is smaller, pass through blocky pole slot 21 and cover board protrusion
11 setting can make up this defect, and plastic parts 3 fills blocky pole slot 21 and wraps up cover board protrusion 11, improve plastic parts
3 and cover board 1, blocky pole 2 combination dynamics, ensure that the air-tightness of battery cap is good.
In the present embodiment, the surface and the cover board 1 and plastic parts 3 that the blocky pole 2 and plastic parts 3 connect
The surface of connection offers multiple nano-pores, and the plastic parts 3 penetrates into the nano-pore.
Plastic parts 3 penetrates into the combination dynamics that plastic parts 3 and blocky pole 2, cover board 1 can be further promoted in nano-pore, from
And promote the air-tightness of battery cap.
In the present embodiment, the top surface of the blocky pole 2 is protruding with a blocky pole protrusion 22, and the bulk pole is convex
Portion 22 and the top surface of blocky pole 2 form a cascaded surface.
After welding battery core on battery cap, backend process is needed battery assembly into mould group, and blocky pole protrusion 22 is led
The cascaded surface of cause facilitates automation equipment to clamp and weld in assembling.
It is found after air tightness test, the air tightness test slip of battery cap provided by the invention is less than 10-7(Pa·
m3)/s.The equipment that the air tightness test uses is that the helium that Anhui Wanyi Science and Technology Co., Ltd. provides examines instrument, detailed process
It is as follows with parameter:
Battery cap is placed in the jig of sealing, inner vacuum, (setting time 15s, to reach are extracted by vacuum pump
Terminate to 30pa, within normal 6s).Spray helium pressurization 6s, helium examine 12s later, helium inspection starting, die sinking when helium pressure reaches setting value
3s, clear helium OK3s, NG5s.The battery cap for detection is taken out, detection terminates.
Referring to FIG. 3, Fig. 3 is the distribution situation of the nano-pore measured under 200,000 power microscopes.It is described to receive in the present embodiment
The aperture of metre hole is 70-120nm, and hole depth is 2-5 μm.Nano-pore is clouded on cover board 1 and blocky pole 2, adjacent nano hole it
Between distance be 60-90nm.In the present embodiment, the plastic parts 33 is insulated plastic part 3, and the insulated plastic part 3 is preferably
PPS (polyphenylene sulfide) plastic parts 3.PPS can satisfy 1 conduction of cover board and insulating properties requirement.Also PBT (poly- terephthaldehyde can be selected
Sour butanediol ester) plastic parts 3.
In the present embodiment, the battery cap includes two blocky poles 2, is set on the cover board 1 there are two 1 hole of cover board,
Two blocky poles 2 and two 1 holes of cover board correspond；Two blocky poles 2 are respectively the blocky pole 2 of anode and cathode
Blocky pole 2.The cover board 1 is Aluminum cover 1, and the blocky pole 2 of anode is positive aluminium block shape pole 2, and the cathode is blocky
Pole 2 is cathode copper billet shape pole 2 or cathode Copper-Aluminum compound bulk pole 2.
Liquid injection hole 44 is additionally provided on the cover board 1, the liquid injection hole 44 is located at the blocky pole 2 of anode and cathode bulk pole
Between 2.
The present invention is fixedly connected with blocky pole 2 with cover board 1 by plastic parts 3, in blocky pole 2 towards each of cover board 1
Blocky pole slot 21 is opened up on a face and plastic parts 3 fills blocky pole slot 21, so that between blocky pole 2 and plastic parts 3
In conjunction with even closer.Although the contact area between blocky pole 2 and cover board 1 is smaller, this can be made up by blocky pole slot 21
One defect ensures that the air-tightness of battery cap is good.Further, the present invention is rotten by chemistry also on blocky pole 2 and cover board 1
Erosion opens up nano-pore, and plastic parts 3 penetrates into the combination dynamics that plastic parts 3 and blocky pole 2, cover board 1 can be promoted in nano-pore, into one
Step promotes the air-tightness of battery cap.Prove the air tightness test slip of battery cap less than 10 by test-7(Pa·m3)/
S meets the air-tightness requirement of battery.Also, the presence for compared to the prior art, reducing lower plastic parts 3 and sealing ring, can mention
The qualification rate for rising finished product, reduces cost.
Embodiment 2
The present embodiment 2 provides a kind of preparation method of battery cap based on blocky pole, can be made in embodiment 1
Battery cap.
Preparation method the following steps are included:
S1, multiple receive is opened up by chemical attack on the surface of blocky pole 2 and the surface of cover board 1 towards blocky pole 2
Metre hole；
S2, blocky pole 2 is inserted into 1 hole of cover board；
S3, in the junction injection moulding plastic of blocky pole 2 and cover board 1, form plastic parts 3, make blocky pole 2 and cover board 1
It is fixedly connected.
Wherein, the size and distribution density of nano-pore, the material of injection moulding plastic etc. are discussed in detail in embodiment 1,
It is not repeating herein.
Opening up for nano-pore is carried out by chemical attack in step S1, and chemical attack specifically comprises the following steps:
S11, it is started the cleaning processing with surface of the cleaning solution to blocky 2/ cover board 1 of pole；
S12, it blocky 2/ cover board 1 of pole is put into lye handles, be put into the acid solution containing sulfuric acid and handle later；
S13, using graphite plate as cathode, using blocky 2/ cover board 1 of pole as anode, be put into the electricity containing sulfuric acid and phosphoric acid
It solves in liquid, carries out direct current electrolysis, blocky 2/ cover board of pole, 1 surface is made to form layer oxide film；The oxidation film contains nanometer
Hole, the aperture of nano-pore are 70-120nm；
S14,2/ cover board 1 of blocky pole with oxidation film is put into nano coating solution and is impregnated, later in polyalkenyl
Phosphate carries out protection processing.
Specifically, the lye is the sodium hydroxide solution of 50g/L, the acid solution is the sulfuric acid solution of 70g/L, described to receive
Rice solution includes the following components'mass percentage: aqueous polyurethane 6%, polyvinyl alcohol 1%, p diethylaminobenzoic acid rouge 13% and water
80%.
The process of injection moulding plastic in step S3 does not have particular/special requirement, and molding proces s parameters are specific as follows:
1. mold temperature: 130-150 DEG C
2. barrel temperature: first segment: 290-300 DEG C；Second segment: 300-320 DEG C；Third section: 310-330 DEG C；4th section:
310-330℃。
3. nozzle temperature: 310-330 DEG C.
3. injection pressure: 80-150MPa (60-95%).
4. injection moulding speed: Medium-High (40-150mm/sec).
5. injection time: 20 seconds.
Embodiment 3
The present embodiment 3 provides a kind of lithium ion battery, including battery cap and embodiment 2 described in embodiment 1
Battery cap made from preparation method.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of battery cap based on blocky pole, which is characterized in that including cover board, plastic parts and at least one blocky pole
Column；The bulk pole is fixedly connected with cover board by the plastic parts；
The cover board hole for the insertion of blocky pole is offered on the cover board, the cover board hole penetrates through two opposite plates of the cover board
Face；The bulk pole is inserted into the cover board hole, and the bulk pole is towards offering a bulk on each face of cover board
Pole slot；
The plastic parts is set between the cover board and blocky pole；The plastic parts filling blocky pole slot, wraps up institute
Cover board is stated towards the part of blocky pole, and is fixedly connected with the blocky pole towards each face of cover board.
2. a kind of battery cap based on blocky pole according to claim 1, which is characterized in that the hole of the cover board hole
Wall center is protruding with a cover board protrusion to the direction of blocky pole, the cover board protrusion bottom with the top surface of cover board, cover board respectively
Face forms a cascaded surface；The plastic parts includes the cover board protrusion and cascaded surface.
3. a kind of battery cap based on blocky pole according to claim 1, which is characterized in that it is described bulk pole and
The surface that the surface of plastic parts connection and the cover board are connected with plastic parts offers multiple nano-pores, the plastic parts
It penetrates into the nano-pore.
4. a kind of battery cap based on blocky pole according to claim 1, which is characterized in that the bulk pole
Top surface is protruding with a blocky pole protrusion, one cascaded surface of top surface formation of the bulk pole protrusion and blocky pole.
5. a kind of battery cap based on blocky pole according to claim 3, which is characterized in that the hole of the nano-pore
Diameter is 70-120nm, and hole depth is 2-5 μm；The air tightness test slip of the battery cap is less than 10-7(Pa·m3)/s。
6. a kind of battery cap based on blocky pole according to claim 1, which is characterized in that the plastic parts is
PPS plastic parts or PBT plastic parts.
7. a kind of battery cap based on blocky pole according to claim 1, which is characterized in that the battery cap packet
Two blocky poles are included, are set on the cover board there are two cover board hole, two blocky poles and two cover board holes correspond；Two
The bulk pole is respectively the blocky pole of anode and cathode bulk pole；
The cover board is Aluminum cover, and the blocky pole of anode is positive aluminium block shape pole, and the cathode bulk pole is cathode
Copper billet shape pole or cathode Copper-Aluminum compound bulk pole.
8. a kind of battery cap based on blocky pole according to claim 7, which is characterized in that the cover board is equipped with
Liquid injection hole, the liquid injection hole are located between two blocky poles.
9. a kind of preparation method of the battery cap as described in claim 1-8 any claim, which is characterized in that including with
Lower step:
S1, multiple nano-pores are opened up by chemical attack on the surface on the surface of blocky pole and cover board towards blocky pole；
S2, blocky pole is inserted into cover board hole；
S3, in the junction injection moulding plastic of blocky pole and cover board, form plastic parts, be fixedly connected with blocky pole with cover board.
10. a kind of lithium ion battery, including the battery cap or claim 9 as described in claim 1-8 any claim
Battery cap made from the preparation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646183.7A CN110212124A (en) | 2019-07-17 | 2019-07-17 | A kind of battery cap and preparation method thereof based on blocky pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646183.7A CN110212124A (en) | 2019-07-17 | 2019-07-17 | A kind of battery cap and preparation method thereof based on blocky pole |
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| CN110212124A true CN110212124A (en) | 2019-09-06 |
Family
ID=67797759
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| CN201910646183.7A Pending CN110212124A (en) | 2019-07-17 | 2019-07-17 | A kind of battery cap and preparation method thereof based on blocky pole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169467A1 (en) * | 2022-03-11 | 2023-09-14 | 苏州美阅新能源有限公司 | Electrode column and battery cover plate |
| CN116799387A (en) * | 2023-08-16 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002329485A (en) * | 2001-05-02 | 2002-11-15 | Nok Corp | Sealing plate |
| CN201876340U (en) * | 2010-11-15 | 2011-06-22 | 天津力神电池股份有限公司 | Air-tightness testing tool for power battery cover |
| CN104183814A (en) * | 2013-05-28 | 2014-12-03 | 三星Sdi株式会社 | Rechargeable battery |
| CN205388978U (en) * | 2015-01-29 | 2016-07-20 | 鸿富锦精密工业（深圳）有限公司 | Cover spare and battery |
| JP2017097978A (en) * | 2015-11-19 | 2017-06-01 | 東レ・デュポン株式会社 | Opening-seal plate for closed type power storage device, method for manufacturing the same, and closed type power storage device |
| CN108930055A (en) * | 2018-07-17 | 2018-12-04 | 深圳市纳明特科技发展有限公司 | Metal-surface nano Coating Processes |
| CN109346629A (en) * | 2018-11-23 | 2019-02-15 | 芜湖天弋能源科技有限公司 | A kind of power battery top cover |
| CN109411645A (en) * | 2018-05-22 | 2019-03-01 | 宁波聚特普新材料有限公司 | A kind of power battery top cover with nanometer injection molding pole |
| CN109863626A (en) * | 2016-10-21 | 2019-06-07 | 三星Sdi株式会社 | Secondary cell and module for it |
-
2019
- 2019-07-17 CN CN201910646183.7A patent/CN110212124A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002329485A (en) * | 2001-05-02 | 2002-11-15 | Nok Corp | Sealing plate |
| CN201876340U (en) * | 2010-11-15 | 2011-06-22 | 天津力神电池股份有限公司 | Air-tightness testing tool for power battery cover |
| CN104183814A (en) * | 2013-05-28 | 2014-12-03 | 三星Sdi株式会社 | Rechargeable battery |
| CN205388978U (en) * | 2015-01-29 | 2016-07-20 | 鸿富锦精密工业（深圳）有限公司 | Cover spare and battery |
| JP2017097978A (en) * | 2015-11-19 | 2017-06-01 | 東レ・デュポン株式会社 | Opening-seal plate for closed type power storage device, method for manufacturing the same, and closed type power storage device |
| CN109863626A (en) * | 2016-10-21 | 2019-06-07 | 三星Sdi株式会社 | Secondary cell and module for it |
| CN109411645A (en) * | 2018-05-22 | 2019-03-01 | 宁波聚特普新材料有限公司 | A kind of power battery top cover with nanometer injection molding pole |
| CN108930055A (en) * | 2018-07-17 | 2018-12-04 | 深圳市纳明特科技发展有限公司 | Metal-surface nano Coating Processes |
| CN109346629A (en) * | 2018-11-23 | 2019-02-15 | 芜湖天弋能源科技有限公司 | A kind of power battery top cover |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169467A1 (en) * | 2022-03-11 | 2023-09-14 | 苏州美阅新能源有限公司 | Electrode column and battery cover plate |
| CN116799387A (en) * | 2023-08-16 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
| CN116799387B (en) * | 2023-08-16 | 2023-12-26 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and electric equipment |
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