CN106848170A - Electrochemical device and preparation method thereof - Google Patents
Electrochemical device and preparation method thereof Download PDFInfo
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- CN106848170A CN106848170A CN201710181652.3A CN201710181652A CN106848170A CN 106848170 A CN106848170 A CN 106848170A CN 201710181652 A CN201710181652 A CN 201710181652A CN 106848170 A CN106848170 A CN 106848170A
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- negative pole
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- 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
- H01M50/531—Electrode connections inside a battery casing
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- 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
- H01M10/04—Construction or manufacture in general
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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
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
This application discloses a kind of electrochemical device and preparation method thereof, the electrochemical device includes：The housing of both ends open；Block the anode end cap and negative pole end cap being fixed at housing both ends open respectively using stirring friction-welding technique；It is contained in the inner core in housing；The full lug of positive pole and the full lug of negative pole being formed on inner core；The positive pole being fixedly connected using the full lug of stirring friction-welding technique and positive pole is confluxed piece；The negative pole being fixedly connected using the full lug of stirring friction-welding technique and negative pole is confluxed piece；It is arranged in anode end cap outside and is confluxed the electrode film that piece is locked by the first bolt and the positive pole；It is arranged in negative pole end outer side of lid and is confluxed the negative electrode plate that piece is locked by the second bolt and negative pole.This electrochemical device internal resistance of the application is lower, high connductivity, high heat conduction, housing insulating properties more preferably, using process it is safer, high current charge-discharge can be carried.
Description
Technical field
The application is related to electrochemical technology field, the electrochemical device of more particularly to a kind of high power high current charge-discharge and
Its preparation method.
Background technology
As the development of modern electronic technology, the equipment of miniaturization are increasing, requirement very high is proposed to power supply.Electricity
Chemical device enters the large-scale practical stage therewith.Electrochemical device early stage is used primarily in mobile phone and notebook computer etc.
On people's compact electric apparatus articles for use, with the development and the expansion in field of technology, electrochemical device starts to motorcycle, automobile, electronic
Instrument, electric automobiles development, it is particularly recent, rapid as automobile-used high-power discharge and recharge power source development, but traditional electricity
Chemical device design uses box hat, the design such as aluminum plastic film or plastic housing, the deriving structure of electric current to press low current charge and discharge design, it is difficult to hold
High current charge-discharge is carried, the using effect and loading demand of electrochemical device is influenceed.
The content of the invention
The application purpose is：Regarding to the issue above, propose that a kind of internal resistance is lower, high connductivity, high heat conduction, housing insulating properties are more
It is good, using process it is safer, the electrochemical device of high current charge-discharge can be carried, while additionally providing the electrochemical device
Preparation method.
The technical scheme of the application is：A kind of electrochemical device, including：
The housing of both ends open；
Block the anode end cap and negative pole being fixed at the housing both ends open respectively using stirring friction-welding technique
End cap；
It is contained in the inner core in the housing；
The full lug of positive pole and the full lug of negative pole being formed on the inner core；
The positive pole being fixedly connected with the full lug of the positive pole using stirring friction-welding technique is confluxed piece；
The negative pole being fixedly connected with the full lug of the negative pole using stirring friction-welding technique is confluxed piece；
It is arranged in anode end cap outside and is confluxed the positive electrode that piece is locked by the first bolt and the positive pole
Piece；And
It is arranged in the negative pole end outer side of lid and is confluxed the negative electrode that piece is locked by the second bolt and the negative pole
Piece.
The application on the basis of above-mentioned technical proposal, also including following preferred scheme：
Positive electrode insulated enclosure circle, the negative electrode plate and institute are provided between the electrode film and the anode end cap
State and be provided with negative electrode insulated enclosure circle between negative pole end cap.
The positive pole conflux offer on piece, anode end cap and electrode film it is mutually corresponding, for locking described first
The bolt hole of bolt, the negative pole confluxes and offer on piece, negative pole end cap and negative electrode plate mutually corresponding, described for locking
The bolt hole of the second bolt.
First bolt is linked together with the electrode film using stirring friction-welding technique, by the positive electricity
The bolt hole on pole piece is sealed up；Second bolt is connected to the negative electrode plate using stirring friction-welding technique
Together, the bolt hole on the negative electrode plate is sealed up.
The inner core includes positive plate, negative plate and barrier film, and the base material of the positive plate is micropore aluminium foil, and its aperture is 0-
200 microns, hole is rate 0-50%, and positive plate substrate surface coats one layer 0-20 microns thick conductive carbon layer；The negative plate
Base material be micropore Copper Foil, its aperture be 0-200 micron, hole be rate 0-50%, negative plate substrate surface coating one layer of 0-20
The thick conductive carbon layer of micron.
The positive pole conflux piece material be pure aluminum or aluminum alloy.
The negative pole conflux piece material be fine copper or copper alloy.
The material of the electrode film is aluminium nickel plating, sectional area of its sectional area not less than the full lug of the positive pole.
The material of the negative electrode plate is copper nickel plating, sectional area of its sectional area not less than the full lug of the negative pole.
The preparation method of above-mentioned electrochemical device, including：
1) with aluminium or almag as raw material, the first type part of housing is molded using the cold-drawn essence method of taking out, then through micro-
In housing, just type part surfaces externally and internally forms the Al of more than 10 microns of thickness for arc oxidation2O3Or Al2O3/ MgO ceramic layers, so as to be obtained
Housing；
2) with aluminium or almag as raw material, the first type of anode end cap and negative pole end cap is molded with process for stamping
Part, then the Al of more than 10 microns of thickness is formed in the first type part surfaces externally and internally of anode end cap and negative pole end cap through differential arc oxidation2O3Or
Al2O3/ MgO ceramic layers, so as to anode end cap and negative pole end cap is obtained；
3) inner core is produced using full lug winding method, the full lug of positive pole and the full lug of negative pole is formed with inner core；
4) the positive pole full lug of piece positive pole that confluxes is fixedly connected using stirring friction-welding technique, is welded using agitating friction
With the full lug of negative pole be fixedly connected the negative pole piece that confluxes by technique,
5) conflux piece, negative pole of positive pole is confluxed into piece and inner core is arranged in housing, will just using stirring friction-welding technique
Extreme lid and negative pole end cap block be fixed at housing both ends open respectively；
6) after to electrolyte is injected in housing, electrode film and the positive pole piece that confluxes are locked with the first bolt, and
Between electrode film and anode end cap set positive electrode insulated enclosure circle, and using stirring friction-welding technique by the first bolt with
Electrode film links together；Negative electrode plate and the negative pole piece that confluxes are locked with the second bolt, and negative electrode plate with it is negative
Negative electrode insulated enclosure circle is set between extreme lid, and the second bolt is connected with negative electrode plate using stirring friction-welding technique
Together.
The advantage of the application is：
1st, positive and negative lug uses full extreme ear structure, bus-bar to be combined together using stirring friction-welding technique with lug,
Accomplish that lug guide flow cross section is maximized, improve conduction, the capacity of heat transmission of chemical component, be easy to large current charge, electric discharge.
2nd, the chemical component structure is ingenious, and whole technological design takes into account the system of high power and high capacity type chemistry component
Make, effectively improve production efficiency, be adapted to large-scale production.
3rd, both positive and negative polarity end cap and housing are combined together using stirring friction-welding technique, it is ensured that the sealing of junction,
Effectively prevent housing electrolyte inside from overflowing.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the application will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of electrochemical device in the embodiment of the present application.
Wherein：1- housings, 2- anode end caps, 3- negative pole end caps, 4- inner cores, 5- positive poles conflux piece, and 6- negative poles conflux piece, 7-
Electrode film, 8- negative electrode plates.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that above-mentioned purpose, the feature and advantage of the application
Mode is applied to be further described in detail the application.It should be understood that these embodiments are not limited to for illustrating the application
Limitation scope of the present application.The implementation condition used in embodiment can do further adjustment according to the condition of specific producer, not
Dated implementation condition is usually the condition in normal experiment.Elaborate many details in order to fill in the following description
Sub-argument solution the application, but, the application can also be different from other modes described here to implement using other, therefore, this
The protection domain of application is not limited by following public specific embodiment.
In the description of this specification, term " connection ", " installation ", " fixation " etc. all should be interpreted broadly.For example, " even
Connect " can make to be fixedly connected, or be detachably connected, or be integrally connected；Can make to be joined directly together, or pass through
Intermediate media are indirectly connected to.For the ordinary skill in the art, can as the case may be understand that above-mentioned term exists
Concrete meaning in the application.
In the description of this specification, term " on ", the orientation of the instruction such as D score or position relationship be based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of description the application and simplify and describe, rather than indicating or imply signified device
Or unit must be with specific direction, with specific azimuth configuration and operation, it is thus impossible to be interpreted as the limit to the application
System.
Fig. 1 shows a specific embodiment of this electrochemical device of the application, and it mainly includes：Housing 1, positive terminal
Lid 2, negative pole end cap 3, the full lug of inner core 4, positive pole, the full lug of negative pole, the positive pole piece 5, negative pole that confluxes conflux piece 6, the and of electrode film 7
Negative electrode plate 8.Wherein：
The usually cylinder-like structure of housing 1, the left and right two ends of housing are hatch frame in its both ends open, i.e. Fig. 1.
The preparation method of the housing 1 is in the present embodiment：Method is taken out using 1060 serial aluminiums (or almag) with cold-drawn essence to be molded, into
Micro-arc anodic oxidation is into 15 microns of thickness (typically requiring more than 10 microns), fine and close, wear-resisting, heat conduction, the Al of insulation after type2O3
Ceramic layer (or Al2O3/ MgO ceramic layers).
Anode end cap 2 is fixed at the left end opening of housing 1 in Fig. 1 using stirring friction-welding technique closure.Negative pole end
Lid 3 is fixed in Fig. 1 at the right-end openings of housing 1 using stirring friction-welding technique closure.Between positive and negative electrode end cap and housing
It is connected using stirring friction-welding technique and is advantageous in that, it is ensured that the sealing of junction, is effectively prevented in housing
Electrolyte overflows.In the present embodiment, anode end cap 2 is identical with the preparation method of negative pole end cap 3, specially：Using 1060 serial aluminiums
(or almag) is molded with process for stamping, then (typically requires 10 into 15 microns of thickness in end cap surfaces externally and internally through differential arc oxidation
It is more than micron), fine and close, wear-resisting, heat conduction, the Al of insulation2O3Ceramic layer (or Al2O3/ MgO ceramic layers).
Housing 1, anode end cap 2 and the surface insulation of negative pole end cap 3, it is ensured that the electrochemical device is safer.Housing 1, positive pole
End cap 2 and negative pole end cap 3 can also use almag material.
Inner core 4 is contained in housing and between anode end cap 2 and negative pole end cap 3, and inner core 4 includes positive plate, bears
Pole piece and barrier film.The present embodiment makes inner core using full lug winding method, and negative plate, barrier film, positive pole are sequentially placed during winding
Piece, barrier film.Wherein the base material of positive plate is micropore aluminium foil, and its aperture is generally 0-200 microns, and this example is specially 50 microns, hole
Gap is generally 0-50% for rate, and this example is specially 10%, and positive plate substrate surface coats one layer of 5 microns of thickness, and (generally 0-20 is micro-
Rice) conductive carbon layer.The base material of negative plate is micropore Copper Foil, and its aperture is generally 0-200 microns, and this example is specially 50 microns,
Hole is generally 0-50% for rate, and this example is specially 10%, and negative plate substrate surface coats one layer of 5 microns of thickness (generally 0-20
Micron) conductive carbon layer.Conductive carbon layer is used to strengthen the infiltration of the conductive, capacity of heat transmission and electrolyte.
In order to ensure that the electrochemical device can carry high current charge-discharge, positive and negative lug uses full extreme ear structure, just
Extremely full lug and the full lug of negative pole are formed on inner core 4, are specifically formed directly on positive plate and negative plate.Obviously, positive pole
The sectional area of full lug is the thickness of positive pole plate substrate and the product of the length of positive pole plate substrate, and the sectional area of the full lug of negative pole is
The product of the thickness of negative pole plate substrate and the length of negative pole plate substrate.
The positive pole piece 5 that confluxes is fixedly connected using the full lug of stirring friction-welding technique and positive pole, so that the two is abundant
With reference to.And in order to be further ensured that positive pole confluxes piece 5 and the full lug of positive pole has sufficiently large contact area, and then make the electricity
Chemical component can carry high current charge-discharge, positive pole conflux piece 5 the sectional area full lug of preferably not less than positive pole sectional area.
The conflux material of piece 5 of positive pole is generally pure aluminum or aluminum alloy, and this example is fine aluminium.
Based on same consideration, the negative pole piece 6 that confluxes is fixedly connected using the full lug of stirring friction-welding technique and negative pole, is born
Pole conflux piece 6 sectional area not less than the full lug of negative pole sectional area.Negative pole conflux piece 6 material generally fine copper or copper close
Gold, this example is fine copper.
Electrode film 7 is arranged in the outside of anode end cap 2, and electrode film 7 is confluxed piece 5 by the first bolt and positive pole
It is locked.Specifically, positive pole conflux offer on piece 5, anode end cap 2 and electrode film 7 it is multiple it is mutually corresponding, for locking
Enter the bolt hole of foregoing first bolt, foregoing first bolt is locked in the bolt hole, the piece 5, positive terminal so that positive pole confluxes
Together with lid 2 is locked with electrode film 7.
Positive electrode insulated enclosure circle is set between electrode film 7 and anode end cap 2, so that the two is dielectrically separated from.
Negative electrode plate 8 is arranged in the outside of negative pole end cap 3, and negative electrode plate 8 is confluxed piece by the second bolt and negative pole
It is locked.Specifically, negative pole conflux offer on piece 6, negative pole end cap 3 and negative electrode plate 8 it is multiple it is mutually corresponding, for locking
Enter the bolt hole of foregoing second bolt, foregoing second bolt is locked in the bolt hole, the piece 6, negative pole end so that negative pole confluxes
Lid 3 and negative electrode plate 81It is locked together.
Negative electrode insulated enclosure circle is set between negative electrode plate 8 and negative pole end cap 3, so that the two is dielectrically separated from.
Above-mentioned first bolt and electrode film 7 use phase same material, are aluminium plating nickel material.Second bolt and negative electrode plate
8 use phase same material, are copper plating nickel material.
In manufacturing process, positive and negative end respectively reserves a bolt hole and is used as liquid injection hole fluid injection, and fluid injection has been melted into
Cheng Hou, then the bolt hole that will be reserved locks bolt, and uses stirring friction-welding technique by each first bolt and the second bolt
Weld together with electrode film and negative electrode plate respectively, bolt hole is fully sealed, prevent the electrolysis hydrorrhea in housing 1
Go out.
In conjunction with shown in Fig. 1, now the preparation method of this electrochemical device of the present embodiment is simply described below：
1) with aluminium as raw material, the first type part of housing is molded using the cold-drawn essence method of taking out, then through differential arc oxidation in shell
The Al of body 15 microns of thickness of just type part surfaces externally and internally formation2O3Ceramic layer, so as to housing is obtained；
2) with aluminium as raw material, the first type part of anode end cap and negative pole end cap is molded with process for stamping, then through micro-
Arc aoxidizes the Al of first type part surfaces externally and internally 15 microns of the thickness of formation in anode end cap and negative pole end cap2O3Ceramic layer, so as to be obtained
Anode end cap and negative pole end cap；
3) inner core is produced using full lug winding method, the full lug of positive pole and the full lug of negative pole is formed with inner core；
4) the positive pole full lug of piece positive pole that confluxes is fixedly connected using stirring friction-welding technique, is welded using agitating friction
With the full lug of negative pole be fixedly connected the negative pole piece that confluxes by technique,
5) conflux piece, negative pole of positive pole is confluxed into piece and inner core is arranged in housing, will just using stirring friction-welding technique
Extreme lid and negative pole end cap block be fixed at housing both ends open respectively；
6) after to electrolyte is injected in housing, electrode film and the positive pole piece that confluxes are locked with the first bolt, and
Between electrode film and anode end cap set positive electrode insulated enclosure circle, and using stirring friction-welding technique by the first bolt with
Electrode film links together；Negative electrode plate and the negative pole piece that confluxes are locked with the second bolt, and negative electrode plate with it is negative
Negative electrode insulated enclosure circle is set between extreme lid, and the second bolt is connected with negative electrode plate using stirring friction-welding technique
Together.
Certainly, above-described embodiment is only the technology design and feature for illustrating the application, its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
Equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (10)
1. a kind of electrochemical device, it is characterised in that including：
The housing (1) of both ends open；
Block the anode end cap (2) and negative pole end being fixed at the housing both ends open respectively using stirring friction-welding technique
Lid (3)；
It is contained in the inner core (4) in the housing；
The full lug of positive pole and the full lug of negative pole being formed on the inner core；
The positive pole being fixedly connected with the full lug of the positive pole using stirring friction-welding technique is confluxed piece (5)；
The negative pole being fixedly connected with the full lug of the negative pole using stirring friction-welding technique is confluxed piece (6)；
It is arranged in anode end cap outside and is confluxed the electrode film that piece is locked by the first bolt and the positive pole
(7)；And
It is arranged in the negative pole end outer side of lid and is confluxed the negative electrode plate that piece is locked by the second bolt and the negative pole
(8)。
2. electrochemical device as claimed in claim 1, it is characterised in that the electrode film (7) and the anode end cap (2)
Between be provided with positive electrode insulated enclosure circle, it is exhausted to be provided with negative electrode between the negative electrode plate (8) and the negative pole end cap (3)
Edge sealing ring.
3. electrochemical device as claimed in claim 1, it is characterised in that the positive pole conflux piece (5), anode end cap (2) and
Offer mutual bolt hole corresponding, for locking first bolt on electrode film (7), the negative pole conflux piece (6),
Mutual bolt hole corresponding, for locking second bolt is offered on negative pole end cap (3) and negative electrode plate (8).
4. electrochemical device as claimed in claim 1, it is characterised in that first bolt is adopted with the electrode film (7)
Linked together with stirring friction-welding technique, the bolt hole on the electrode film (7) is sealed up；Described second
Bolt is linked together with the negative electrode plate (8) using stirring friction-welding technique, by the institute on the negative electrode plate (8)
Bolt hole is stated to seal up.
5. electrochemical device as claimed in claim 1, it is characterised in that the inner core (4) including positive plate, negative plate and every
Film, the base material of the positive plate is micropore aluminium foil, and its aperture is 0-200 microns, and hole is rate 0-50%, positive plate substrate surface
One layer 0-20 microns thick conductive carbon layer of coating；The base material of the negative plate is micropore Copper Foil, and its aperture is 0-200 microns, hole
Gap is rate 0-50%, and negative plate substrate surface coats one layer 0-20 microns thick conductive carbon layer.
6. electrochemical device as claimed in claim 5, it is characterised in that the positive pole conflux piece (5) material for fine aluminium or
Aluminium alloy.
7. electrochemical device as claimed in claim 5, it is characterised in that the negative pole conflux piece (6) material for fine copper or
Copper alloy.
8. electrochemical device as claimed in claim 1, it is characterised in that the material of the electrode film (7) is aluminium nickel plating, its
Sectional area of the sectional area not less than the full lug of the positive pole.
9. electrochemical device as claimed in claim 1, it is characterised in that the material of the negative electrode plate (8) is copper nickel plating, its
Sectional area of the sectional area not less than the full lug of the negative pole.
10. a kind of such as the preparation method of any electrochemical device in claim 1-9, it is characterised in that including：
1) with aluminium or almag as raw material, the first type part of housing is molded using the cold-drawn essence method of taking out, then through differential of the arc oxygen
Change in housing that just type part surfaces externally and internally forms the Al of more than 10 microns of thickness2O3Or Al2O3/ MgO ceramic layers, so as to housing is obtained；
2) with aluminium or almag as raw material, the first type part of anode end cap and negative pole end cap is molded with process for stamping,
Form the Al of more than 10 microns of thickness in the first type part surfaces externally and internally of anode end cap and negative pole end cap through differential arc oxidation again2O3Or
Al2O3/ MgO ceramic layers, so as to anode end cap and negative pole end cap is obtained；
3) inner core is produced using full lug winding method, the full lug of positive pole and the full lug of negative pole is formed with inner core；
4) the positive pole full lug of piece positive pole that confluxes is fixedly connected using stirring friction-welding technique, using stirring friction-welding technique
The negative pole piece that confluxes is fixedly connected with the full lug of negative pole；
5) conflux piece, negative pole of positive pole is confluxed into piece and inner core is arranged in housing, using stirring friction-welding technique by positive terminal
Lid and negative pole end cap block be fixed at housing both ends open respectively；
6) after to electrolyte is injected in housing, electrode film and the positive pole piece that confluxes are locked with the first bolt, and in positive electricity
Positive electrode insulated enclosure circle is set between pole piece and anode end cap, and uses stirring friction-welding technique by the first bolt and positive electricity
Pole piece links together；Negative electrode plate and the negative pole piece that confluxes are locked with the second bolt, and in negative electrode plate and negative pole end
Negative electrode insulated enclosure circle is set between lid, and the second bolt and negative electrode plate are connected to one using stirring friction-welding technique
Rise.
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| CN201710181652.3A CN106848170B (en) | 2017-03-24 | 2017-03-24 | Electrochemical device and method for manufacturing the same |
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| CN201710181652.3A CN106848170B (en) | 2017-03-24 | 2017-03-24 | Electrochemical device and method for manufacturing the same |
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Cited By (1)
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|---|---|---|---|---|
| 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 |
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| CN106025345A (en) * | 2016-07-01 | 2016-10-12 | 浙江天能能源科技股份有限公司 | Lithium ion battery |
| CN106207023A (en) * | 2016-07-13 | 2016-12-07 | 中航锂电（洛阳）有限公司 | Lithium battery encapsulation housing and use lithium battery and the packaging technology of this encapsulating housing |
| CN106271458A (en) * | 2016-09-19 | 2017-01-04 | 江西恒动新能源有限公司 | A kind of process technology of square power lithium ion cell aluminum hull |
| CN206610861U (en) * | 2017-03-24 | 2017-11-03 | 苏州工业园区恒量咨询有限公司 | Electrochemical device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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