CN102329985A - Aluminum foil for flexible package of polymer lithium ion battery - Google Patents
Aluminum foil for flexible package of polymer lithium ion battery Download PDFInfo
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Abstract
The invention which provides an aluminum foil for the flexible package of a polymer lithium ion battery aims at providing an aluminum foil which has a tensile strength, an elongation rate and a cupping value higher than indexes in the prior art, can synchronously extend and flow with other composite materials, and allows the punching depth of a flexible package material plastic-aluminum composite membrane for the polymer lithium ion battery to be satisfied. The aluminum foil is formed with the following technical scheme: the aluminum foil comprises 0.09-0.9 wt% of silicon Si, 0.6-1.5 wt% of iron Fe, 0.006-0.10 wt% of copper Cu, 0.03-0.05 wt% of manganese Mn, and the balance aluminum Al at least, and the sum of contents of other metals and alloys is not greater than 0.05-0.15 wt%. The tensile strength, the elongation rate and the cupping value of the aluminum foil formed in the invention are greater than 98MPa, greater than 21%, and equal to or greater than 6.10 respectively; and the aluminum foil which can realize the synchronous extension and flow by compositing with other materials allows the punching depth of the flexible package material plastic-aluminum composite membrane for the polymer to be 3-15mm.
Description
Technical field
The present invention relates to a kind of aluminium foil that is mainly used in the used flexible packing material aluminum-plastic composite membrane of polymer Li-ion battery, can think that there is the aluminium foil of purposes widely in fields such as the present invention can also be used to pack in the daily life, electric and building.
In the prior art, aluminium foil relates to founding, hot rolling, be cold rolled to paper tinsel rolls, be production process at most, one of maximum aluminium product of processing technology difficulty.Polymer Li-ion finished product battery is to be exposed in the atmospheric environment of certain humidity, and the moisture of air has the effect of seeing through to wrapping material.Because lithium-ions battery is very harsh to the requirement of non-water condition, moisture can directly influence battery cycle life, so the barrier property of each composite bed of wrapping material is very important.And the key that plays iris action in the layers of material is aluminium foil.Because aluminum foil thickness is little of the pin hole that to a certain degree will occur transmitting oxygen and water vapour inevitably.Therefore; High, medium and low temperature phase transformation in the organizational controls of the performance of the alloy system of aluminum foil material and alloy phase, aluminium foil, the production technique of aluminium foil, aluminium foil, the aluminum foil material, chemical ingredients to the aluminium foil Effect on Performance, all can have influence on the Forming Quality of aluminium foil packing to aluminium foil tissue and Effect on Performance, processing parameter.In particular for the aluminium foil layer of polymer Li-ion battery flexible packing material, the general requirement aluminum-plastic composite membrane must have high barrier: the transit dose of water vapour must be less than 1 * 10
-4G/m
2D.1atm; The oxygen transit dose must be less than 0.1cm
3/ m
2D.1atm.This requirement is higher about 10000 times than the barrier of conventional aluminium plastic composite materials.The water vapour permeability cm of normal aluminium foil
3/ (m
224h0.1Mpa) cm
3/ (m
224h0.1Mpa), therefore generally need to adopt thicker aluminium foil, and need to adopt the composite structure of 5～7 layers and even 12 layers.Usually the aluminum foil thickness of the flexible packing material thickness that is greater than 40 μ m just can be avoided the slow infiltration of water vapour.In general, the aluminium foil moulding degree of depth that 40 μ m are thick is no more than 4mm, and the thickness of aluminium foil can not be less than 30 μ m, so common matrix material is difficult to reach requirement after the moulding.
The aluminum foil material packaging means of polymer Li-ion battery generally has two kinds of formed package and non-formed packages.Box-packaged formed package mode is that wrapping material are washed into the boxlike shape.Because in moulding process, aluminium foil must have synchronous extension, mobile performance with other matrix materials, and aluminium foil can attenuation in the process of extending.This just requires the stripping strength of different composite layer higher, just can avoid delamination in the moulding process.Non-formed package mode is not extended owing to material, thus relatively low to the thickness requirement of ductility and aluminium foil, but non-moulding must be in 120u.
On barrier, the relation between aluminum foil thickness changes before and after the cold stamping shaped degree of depth of the cold stamping shaped flexible packing material that difficulty is maximum, aluminium foil elongation and the cold stamping is 3-12mm to the cold stamping shaped property requirement cold stamping degree of depth; Do not allow layering, break, the pin hole light leak; Shape-holding property, degree of deformation a＜50.Wherein some index can quantitative description, can detect through suitable method, and what have but can not detect with advanced person's method.Some requirement can only qualitative description, can not find suitable method and detects.Therefore also do not form international standard, the domestic producer that furthers investigate is very little, does not more have standard to follow.At present aluminium foil is after the outermost layer nylon BOPA of multi-layer co-extruded PP, PE or CPP and aluminium foil or PET are compound, be difficult to reach the above-mentioned cold stamping degree of depth and be 3-12mm or more than.
Aluminium foil or the common chemical composition content of aluminium plate mainly contain at present:
According to the mechanical property of new standard (GB/T 13198-2003) aluminium foil of aluminium and aluminium foil 8001 series, the tensile strength RM/ (Nmm of the aluminium foil of 0.14～0.2mm thickness of O state
2) 60～115, elongation A/% is not less than 14.
In the prior art, it is 0.02mm that the packing of aluminium foil mostly adopts thickness, state be 8 of H18 * * * serial aluminium foil.8 * * * serial aluminium foil serial chemical ingredients silicon Si:0.40 commonly used, copper Cu:1.2～2.0, magnesium Mg:2.1～2.9, zinc Zn:5.1～6.1, manganese Mn :≤0.30.8011 alloy aluminium foil tensile strength of available technology adopting are on the low side, only reach 168NPmm
2, unit elongation only reaches＞and 4, Erichsen number 2～3.Work in-process, aluminium foil spar (bright spot) are that pairing appears at uneven luminous point on the aluminium foil dark face when rolling.It not only influences attractive in appearance, and can cause the mechanical properties decrease of aluminium foil.Spar is distributed in the dark face of aluminium foil; General ovalize; The disperse of being rectangle individually distributes, and on whole aluminium foil surface or local distribution, two paper tinsels up and down of pairing are one-to-one relationship sometimes; The color of spar is darker and shinny than the basic colors of aluminium, then can form pin hole during especially severe.In normal rolling process, roller surface does not directly contact with the surface of aluminium foil, and rolling load is transmitted through rolling oil film.Shaping point of view of tribology from metal; Separate by liquid lubricant fully between two contact surfaces of roll and aluminium foil; The friction that is produced in the aluminium foil forming process is fluid friction; In case, just formed mixed friction (forming) by fluid friction, metal to-metal contact, boundary friction if the oil film part that this one deck liquid lubricant is formed in the operation of rolling is destroyed.Metal to-metal contact and boundary friction usually can cause the shaping of rolling workpiece unusual, and just compacting pressure is not passed through oil film, but are delivered on the rolling workpiece through the direct contact of partial point, form so-called " spar ".And fluid friction partly belongs to normal profiled surface, can not influence spar, the reason that Here it is spar generation and disperse distribute.The heterogeneity of roll roughness or pairing footpath are poor too big; It also is the very important reason that produces spar; When the up-down rollers roughness heterogeneity of roll; Cause the rubbing factor of levels aluminium foil and upper working rolls and lower working rolls different,, cause and produce the relative changing of the relative positions between the two-layer aluminium foil because the rotating speed of roll is synchronous.Same because the circular frequency of upper working rolls and lower working rolls is identical, the difference in roller footpath makes its LV different, when pairing is rolling, makes and also produces relatively sliding between the two-layer aluminium foil along with the rotation of working roll.When the thickness difference of two aluminium foils was big, because the flowing of metal, the working modulus of two aluminium foils was inconsistent up and down, makes the mobile asynchronous of metal, and two aluminium foils are easy to generate the changing of the relative positions, the generation spar.Work in-process and since the oiling of closing volume very little or oiling uneven, make the became uneven of two-layer aluminium foil oil film in the operation of rolling, or some areas do not have oil film, cause and form metal to-metal contact or boundary friction between the two-layer aluminium foil.
Summary of the invention
Task of the present invention is to propose a kind of tensile strength, unit elongation and Erichsen number to be higher than the prior art index; Can extend synchronously with other matrix material, flow, and can satisfy the aluminium foil that the used aluminum-plastic composite membrane flexible packing material of polymer Li-ion battery dashes deep degree.
Above-mentioned purpose of the present invention can be achieved through following technique measures; A kind of polymer Li-ion battery soft packaging aluminium foil; At least contain silicon Si, iron Fe, copper Cu, manganese Mn and aluminium Al; Wherein silicon Si:0.09wt%～0.9wt%, iron Fe:0.6wt%～1.5wt%, copper Cu:0.006wt%～0.10wt%, manganese Mn:0.03wt%～0.05wt%, aluminium Al are surplus, and other adds alloy micronutrient levels total and is not more than 0.05wt%～0.15wt%.
The present invention has the following effect of having a mind to than prior art.
In the compsn of above-mentioned aluminium foil, if add simultaneously with titanium Ti＜boron 0.0005 crystal grain thinning is better.Add a spot of copper Cu, copper Cu dissolves in the αGu Rongti, can improve intensity.Add a spot of Mn or magnesium Mg＜0.03% and can eliminate the harmful effect of iron Fe, silicon Si.Copper Cu, Mn, Mg solid solution will reduce the amount of separating out of Fe, Si in the Al matrix.Can improve the intensity and the erosion resistance of aluminium foil alloy less than the content of 1%Mn.The solubleness of Mg in Al is very big, when the eutectic temperature 450 degree left and right sides solubleness of this Mg up to 15% about.The chromium Cr that adds trace can improve the erosion resistance of aluminium foil alloy.The solubleness of chromium Cr in aluminium is minimum, can suppress nucleus formation and crystal grain and swell.The combination of a little components and the above-mentioned percentage range of each component are confirmed through a large amount of tests, the excellent balance with above-mentioned physical and mechanical properties that aforesaid combination and percentage range form aluminium foil compsn of the present invention.
The present invention has overcome the prejudice of prior art so-called " when the aluminium foil iron-holder surpassed 0.9 weight %, the flexibility of aluminium was damaged, as its bag property variation of laminate " through the chemical ingredients in 8011 alloys is adjusted accordingly.Through a large amount of experiments, the physical property and the mechanical property of the final aluminium foil that forms of the present invention: O state, tensile strength be greater than more than 80～98Mpa, unit elongation＞21%, and Erichsen number >=more than 6.10,0.2% ys 455Mpa, springform E/Gpa:71.
Utilize the present invention and other matrix material; Not only can realize synchronous extension, flow; And can satisfy the used aluminum-plastic composite membrane flexible packing material of polymer Li-ion battery dash deep degree 3～15mm or more than; Satisfy outer PET of the used aluminum-plastic composite membrane flexible packing material of polymer Li-ion battery and nylon BOPA innermost layer PP, the combined strength bination of CPP, PE is dashed value deeply and towards the requirement at dark right angle to reach.
This aluminium foil is used for the clad aluminum foil layer of polymer Li-ion battery flexible packing material; Has high barrier: because the pin hole rate that produces is extremely low; Steam permeable amount and oxygen transit dose are almost 0g/m2d.1atm through overtesting; Aluminium foil surface can reach no oil standard, and wetted surface tension force can reach 34 * 10
-3NPm.By 0.1 original μ m, bring up to 0.15 μ m, bounding force is improved greatly to the roughness of working roll
The present invention adopts proper heat treatment technology and machining deformation technology, and the rolled hardening element of Fe in the duraluminum, the one-tenth of Si are analyzed.Because precipitate ground quantity is many more, to separate out fully more, Fe, the Si solid solubility in aluminum substrate is low more, and forms uniform distribution, the particle that＜5 μ are tiny.Wherein, flash-point changes 70 ℃ pairing oil into.Flash-point is that 70 ℃ rolling base oil is compared with 82 ℃ rolling base oil, and its viscosity is lower, and volatility is stronger, and the oil film of its formation is thinner, the oil that the aluminium foil dark face forms
Film is evenly distributed, and the lubricity of this moment is on the low side, and two frictional force between the aluminium foil are increased, and makes not have relatively sliding between the two-layer aluminium foil.
Embodiment
In following examples, polymer Li-ion battery soft packaging aluminium foil is that main chemical compositions is carried out component with silicon Si, iron Fe, copper Cu, magnesium Mg, zinc Zn, Mn and aluminium Al.By weight percentage; Silicon Si:0.09wt%～0.9wt%, iron Fe:0.6wt%～1.5wt%, copper Cu:0.006wt%～0.10wt%, manganese Mn:0.03wt%～0.05wt%, contain other trace element; Such as zinc Zn, magnesium Mg, titanium Ti; Chromium Cr, nickel metal alloy content add up to and are not more than 0.05wt%～0.15wt%, aluminium Al surplus can for 99% or more than.Other metal alloy content, magnesium Mg:0.005wt%～0.010wt%, Zn:0.005wt%～0.013wt%, titanium: Ti0.018wt%～0.05wt%, chromium Cr:0.008wt%～0.013wt%, nickel: 0.01wt%～0.06wt%.By any value of above-mentioned scope.
Preferably, silicon Si:0.2%～0.6% (wt), iron Fe:0.9%～1.1% (wt), copper Cu:0.007%～0.8% (wt), manganese Mn:0.04%～0.05% (wt), aluminium Al are surplus, and other metal alloy content adds up to less than 0.12% (wt).
Preferably, silicon Si:0.5%～0.8% (wt), iron Fe:1.2%～1.35% (wt), copper Cu:0.008%～0.9% (wt), manganese Mn:0.04%～0.05% (wt), aluminium Al are surplus, and other metal alloy content adds up to less than 0.10% (wt).
By the said ratio component, can roll method or sedimentation technical process according to the folded hypodesmus of routine, belt, passage is rolled calculating, roll speed selected of rate compilation principles, rolling load; The front and back tensile is selected and is regulated. and the technical process of aluminium foil comprises, the founding of ingot casting and homogenizing, the hot rolling of sheet material and cold rolling; Process annealing; Aluminium foil rolling, finished products, secondary processing etc.In the homogenizing process, the diffusion ratio iron of silicon is much fast, and silicon can reach balance through diffusion, and the changes in distribution of iron is very little, does not even change.By technical process: blank check → rolling → close volume → rolling → cut → check, pack, put in storage.230 ° 28 hours+270 ° of degeneration process using 34 hours.Rolling pass can be assigned as 0.3mm (H14) → 0.145mm → 01072mm → 0.032mm → 2 * 0.02mm (H18).Wherein to be placed on roll crown be 0.09mm to 1,2 passages, and the Ra value is rolling on the roughing mill of 0.3 μ m; 3, to be placed on roll crown be 0.10mm to 4 passages, and the Ra value is 0.15
Rolling among the μ m.Roll speed 1,2,3 passages are at 800mPmin～1200mPmin, and the 4th pass speed is controlled at 400mPmin～450mPmin.0.28mm aluminium foil stock will roll 0.04mm～0.12mm with 4 passages, with 290 ° of process annealings, 18 hours.The oil removing of aluminium foil paper tinsel face.Woollen cold rolling, roughing through some passages, in roll the aluminium foil that obtains different thickness with finish rolling.
The rolling of aluminium foil carries out under the environment of oil lubrication, and aluminium foil surface can be stained with ROLLING OIL inevitably.Therefore; The roller-cleaning device of reply milling train is transformed; The pressure that roller-cleaning device is acted on the supporting roll increases, and on the tie-beam between last roller-cleaning device and two memorial archways, adds the urethane baffle plate of a width of cloth monoblock, and the ROLLING OIL of inlet can not splashed above supporting roll on the paper tinsel face of outlet.Device adds that near the supporting roll place width of cloth keeps off oily curtain behind outlet active milling train, and following ROLLING OIL can be thrown on the paper tinsel face, and to splasher, purges tuyere and transform, and the angle and the blast of adjustment tuyere make the oil removing of milling train own reach optimum.
In the operation of rolling, bring up to 0.5 μ m～0.18 μ m to the roughness of working roll, the preferred 0.5 μ m of working roll roughness; The speed of controlled rolling finished product and rolling load; Adopt low-flash pairing oil, rolling base oil flash-point is 70 ℃ a pairing oil, reduces oily effect; Make roll produce a less pressure stress, make the reduced thickness of the oil film that gets into the distorted area in aluminium foil surface.Reduce the oil pressure and the temperature that improves ROLLING OIL of ROLLING OIL, reduce the pass reduction of final pass.Reducing oil pressure mainly is in order to reduce oil film thickness and rolling oil mass with improving oily temperature; The pass reduction that reduces finished product is in order to reduce roll speed; Thereby reduce the temperature and the thickness that reduces oil film in rolling district, also make work hardening more obvious simultaneously, improve the intensity of aluminium foil.Reduce oiliness improver content in the ROLLING OIL, reduce rolling oil viscosity, reduce the thickness of oil film.
In closing the process of volume, evenly oiling on coiling machine strengthens and is coated with oil mass, underspeeds, the aluminum foil thickness before the strict control pairing, and two thickness difference reaches requirement when making pairing, otherwise does not allow pairing together.
Embodiment 1
By weight percentage, get Si:0.15wt%, iron Fe:0.22wt%, copper Cu:0.08wt%, manganese Mn:0.038wt%, aluminium Al: surplus, other metal alloy content: zinc Zn:0.006wt%, magnesium Mg:0.005wt%; Titanium Ti:0.013wt%, chromium Cr:0.009wt%, nickel: 0.01w t%; But above-mentioned other metal element content total is not more than 0.05wt%～0.15wt%, adds up to :≤0.15, such as; Magnesium Mg:0.005wt%; Zn:0.005wt%, titanium: Ti0.018wt%, chromium Cr:0.008wt%, nickel: 0.01wt%.Make aluminium foil by aforementioned technology.
Embodiment 2
By weight percentage; Get Si:0.2wt%, iron Fe:0.8wt%, copper Cu:0.10, manganese Mn:0.04, other metallic zinc Zn:0.01wt%, magnesium Mg:0.006wt%; Titanium Ti:0.008wt%, chromium Cr:0.009wt%, nickel: 0.01w t%; But other alloying element zinc Zn, magnesium Mg titanium Ti, chromium Cr, Ni content total are not more than 0.05～0.15.Such as magnesium Mg:0.006wt%, Zn:0.007wt%, titanium: Ti0.019wt%, chromium Cr:0.009, nickel: 0.03wt%.And make aluminium foil by above-mentioned technology.
Embodiment 3
By weight percentage, get silicon Si:0.3wt%, iron Fe:0.9wt%, copper Cu:0.013wt%, manganese Mn:0.05wt%, other magnesium Mg:0.008wt%; Zinc Zn:0.007wt%, titanium Ti:0.005wt%, chromium Cr:0.009wt%, nickel: 0.02w t%; But other metal element content total is not more than 0.05wt%～0.15wt%, such as: 0.008wt%, Zn:0.009wt%, titanium: Ti0.023; Chromium Cr:0.01wt%, nickel: 0.04wt%.And make aluminium foil by above-mentioned technology.
Embodiment 4
By weight percentage; Get silicon Si:0.05wt%, iron Fe:0.1.1wt%, copper Cu:0.006wt%, manganese Mn:0.03wt%, other metal alloy content magnesium Mg:0.009wt%, zinc Zn:0.008wt%, titanium Ti:0.0135wt%, chromium Cr:0.01wt%; Nickel: 0.021; But above-mentioned other metal element content total is not more than 0.05wt%～0.15wt%, such as magnesium Mg:0.009wt%, and Zn:0.11wt%, titanium: Ti0.02wt%; Chromium Cr:0.012wt%, nickel: 0.03wt%.And make by above-mentioned technology.
Embodiment 5
By weight percentage; Getting silicon Si:0.0.9wt%, iron Fe:1.5wt%, copper: 0.10wt%, manganese Mn:0.05wt%, aluminium Al is wt99%; Other metal alloy content magnesium Mg:0.009wt%; Zinc Zn:0.008wt%, titanium Ti:0.0135wt%, chromium Cr:0.01wt%, nickel: 0.025.But adding up to, above-mentioned other metal element content should be not more than 0.05～0.15, such as, 0.010wt%, Zn:0.013wt%, titanium: 0.05wt%, chromium Cr:0.013wt%, nickel: 0.06wt%.
In the above-described embodiments, O state, the mechanical property of aluminium foil; Basically can both reach: tensile strength is greater than more than 80～98Mpa, unit elongation＞21%, and Erichsen number >=more than 6.10; 0.2% ys 455Mpa, the over-all properties of springform E/Gpa:71, deviate change about 20%.
Above-described only is the preferred embodiments of the present invention.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some distortion and improvement, these changes and change should be regarded as belonging to protection scope of the present invention.
Claims (9)
1. polymer Li-ion battery soft packaging aluminium foil; At least contain silicon Si, iron Fe, copper Cu, manganese Mn and aluminium Al; Wherein silicon Si:0.09%～0.9% (wt), iron Fe:0.6%～1.5% (wt), copper Cu:0.006%～0.10% (wt), manganese Mn:0.03%～0.05% (wt), aluminium Al are surplus, and other metal alloy content total is not more than 0.05%～0.15% (wt).
2. polymer Li-ion battery soft packaging aluminium foil as claimed in claim 1 is characterized in that, other metal alloy mainly comprises, zinc Zn, magnesium Mg titanium Ti, chromium Cr, nickel.
3. polymer Li-ion battery soft packaging aluminium foil as claimed in claim 2; It is characterized in that; Said other metal alloy content, magnesium Mg:0.005wt%～0.010wt%, Zn:0.005wt%～0.013wt%, titanium: Ti0.018wt%～0.05wt%; Chromium Cr:0.008wt%～0.013wt%, nickel: 0.01wt%～0.06wt%.
4. polymer Li-ion battery soft packaging aluminium foil as claimed in claim 1; Wherein, Silicon Si:0.2%～0.6% (wt), iron Fe:0.9%～1.1% (wt), copper Cu:0.007%～0.8% (wt), manganese Mn:0.04%～0.05% (wt), aluminium Al are surplus, and other metal alloy content adds up to less than 0.12% (wt).
5. polymer Li-ion battery soft packaging aluminium foil as claimed in claim 1; Wherein, Silicon Si:0.5%～0.8% (wt), iron Fe:1.2%～1.35% (wt), copper Cu:0.008%～0.9% (wt), manganese Mn:0.04%～0.05% (wt), aluminium Al are surplus, and other metal alloy content adds up to less than 0.10% (wt).
6. method of making the said polymer Li-ion battery soft packaging of claim 1 aluminium foil; It is characterized in that mainly comprising the steps: blank check → rolling → close volume → rolling → cut → check and pack, 230 ° 28 hours+270 ° of the process using of wherein degenerating 34 hours.
7. the method for manufacturing polymer Li-ion battery soft packaging aluminium foil as claimed in claim 6 is characterized in that the 0.28mm aluminium foil stock rolls 0.04mm～0.12mm with 4 passages, with 290 ° of process annealings, 18 hours.
8. the method for manufacturing polymer Li-ion battery soft packaging aluminium foil as claimed in claim 6; It is characterized in that; In the operation of rolling, bring up to 0.5 μ m～0.18 μ m, the speed of controlled rolling finished product and rolling load to the roughness of working roll; Adopting rolling base oil flash-point is 70 ℃ pairing oil, reduces oily effect.
9. the method for manufacturing polymer Li-ion battery soft packaging aluminium foil as claimed in claim 6 is characterized in that, in closing the process of volume; Evenly oiling on coiling machine strengthens and is coated with oil mass, underspeeds; Aluminum foil thickness before the strict control pairing, two thickness difference reaches requirement when making pairing.
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| CN102021446A (en) * | 2010-12-21 | 2011-04-20 | 湖南晟通科技集团有限公司 | Method for manufacturing aluminum-alloy double-zero aluminum foil |
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| CN1974813A (en) * | 2005-11-28 | 2007-06-06 | 镇江鼎胜铝业有限公司 | Alumium Foil for air conditioner |
| CN101383200A (en) * | 2008-10-20 | 2009-03-11 | 河南省银湖铝业有限责任公司 | Aluminum foil for electric cable and production method |
| CN101798646A (en) * | 2010-04-22 | 2010-08-11 | 镇江鼎胜铝业股份有限公司 | Aluminum alloy material and manufacturing method for dual-zero aluminium foils |
| CN102021446A (en) * | 2010-12-21 | 2011-04-20 | 湖南晟通科技集团有限公司 | Method for manufacturing aluminum-alloy double-zero aluminum foil |
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| CN112251652A (en) * | 2020-10-22 | 2021-01-22 | 厦门厦顺铝箔有限公司 | Aluminum foil for high-elongation lithium ion battery and production method |
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| CN113634607B (en) * | 2021-07-01 | 2023-09-22 | 乳源东阳光优艾希杰精箔有限公司 | Rolling oil of aluminum foil rolling mill and application of rolling oil in aluminum foil preparation |
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