CN108823437A - A kind of high intensity collector alloy foil and its manufacturing method - Google Patents
A kind of high intensity collector alloy foil and its manufacturing method Download PDFInfo
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- CN108823437A CN108823437A CN201810698743.9A CN201810698743A CN108823437A CN 108823437 A CN108823437 A CN 108823437A CN 201810698743 A CN201810698743 A CN 201810698743A CN 108823437 A CN108823437 A CN 108823437A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
- H01M4/662—Alloys
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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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Abstract
The object of the present invention is to provide a kind of high-intensitive collector alloy foil and its manufacturing methods.The composition and weight proportion of plus plate current-collecting body of the invention alloy foil be：Fe：0.3~0.4wt%, Cu：0.06~0.15wt%, La：0.1~0.15wt%, surplus are aluminium.The tensile strength of cold rolling alloy foil is greater than 215MPa, and elongation percentage is greater than 1.7%.After carrying out 140 DEG C or the heat treatment in 10 hours of 160 DEG C of constant temperature to above-mentioned cold rolling aluminium alloy foil material, 205MPa is still greater than in the tensile strength of alloy foil, and elongation percentage is greater than 3.8%.
Description
Technical field
The present invention relates to a kind of electrode current collecting bodies for secondary cell, double layer capacitor, lithium-ion capacitor etc., special
It is not to be related to a kind of high-intensitive collector alloy foil and its manufacturing method.
Background technique
Because lithium ion battery has many advantages, such as that operating voltage is high, specific energy is big, have extended cycle life, self discharge is small, make its at
For main force's power supply in each electronic product, while with global government of major country, tissue, car manufactures, energy supply
Quotient, risk investment enterprise common action push the upgrading of Global Auto industrial structure change and the strategic transformation of dynamical system motorized,
Lithium ion battery is allowed to be increasingly being applied to automotive field.
Plus plate current-collecting body alloy foil mainly plays electric action in lithium ion battery and support anode coating is lived
The effect of property substance, does not help the capacity of lithium ion battery directly.So in the item for guaranteeing the certain conductivity of alloy foil
Reach the thickness for reducing alloy foil by improving the intensity of aluminium foil under part, so as to more in the coating of alloy foil surface
Active material, not only alleviate battery weight but also increase the specific energy of lithium ion battery.Currently, most of lithium-ion electrics
Pond mainly uses material of the 1XXX aluminium alloy (including 1060Al, 1070Al etc.) as collector aluminium foil, due to its intensity ratio
Lower (>150MPa), to prevent positive active material to be broken in coating procedure, the aluminium foil that comparison is thick is needed, can be increased in this way
Add battery weight, decreases the usage amount of coating positive active material.The lightweight of positive electrode current collector aluminium foil is
As a kind of important trend, so market is highly desirable to find the new high-strength aluminum alloy of one kind to substitute common 1XXX
Aluminium alloy.
Particularly, in coating the drying process after active material, at 120 DEG C~180 DEG C or so of implementation of heating
Reason, this meeting so that collector aluminium foil strength reduction, in pressure processing engineering be easy extend, thus winding when generate roll up
Around gauffer, the adaptation on active material and alloy foil surface declines, and is unfavorable for the electric current that collector collects active material generation,
Biggish current versus output can not be formed.
Patent CN 102747251A obtains the lithium that tensile strength after cold rolling is 170MPa or more by adding Fe, Si element
Ion battery electrode collector aluminium foil, but the influence heated to aluminium foil intensity is not reported.Patent CN 103397227A
The lithium ion cell electrode collector aluminium that elongation percentage after cold rolling is only 2~2.5% is obtained by the addition elements such as Fe, Mn, Si
Foil, this possibly can not solve to be easy to happen asking for disconnected band when alloy foil coats positive active material because caused by elongation percentage is low
Topic.
Summary of the invention
The present invention completes in view of the foregoing, it is therefore an objective to still keep high intensity after providing a kind of high-intensitive and heat treatment
A kind of plus plate current-collecting body alloy foil and its manufacturing method, to substitute common low-intensity, low elongation plus plate current-collecting body is used
Alloy foil, tensile strength is greater than the plus plate current-collecting body aluminium alloy of 205MPa, elongation percentage greater than 3.8% after being heat-treated
Foil.
The present invention provides a kind of high-intensitive collector alloy foil, contains Fe：0.3~0.4wt%, Cu：0.06~
0.15wt%, La：0.1~0.15wt%, surplus are aluminium.
The preferred weight proportion of copper in the material component：0.06~0.08wt%.
A kind of manufacturing method of the alloy foil, comprises the steps of：
A) it joined the intermediate alloy Al-20wt%La of rare-earth elements La during alloy melting.
B) homogenize process that resulting aluminium alloy ingot bar is kept 8 hours at 590-600 DEG C is cast；
Implement hot rolling, cold rolling, intermediate annealing and foil rolling later, obtains the alloy foil with a thickness of 0.02~0.09mm；
Specifically, the hot rolling be 460~500 DEG C at a temperature of, control drafts be 70~85%；Hot rolled plate is cold-rolled to
0.15mm, control drafts are 60~75%；Cold rolled sheet is carried out working modulus after intermediate annealing 2 hours at 330-380 DEG C to exist
40% or more foil rolling obtains the alloy foil with a thickness of 0.02~0.09mm.
The tensile strength of cold rolling alloy is greater than 215MPa, and elongation percentage is greater than 1.7%.In 140 DEG C of constant temperature or 160 DEG C of constant temperature 10
After hour, the tensile strength of alloy is greater than 205MPa, and elongation percentage is greater than 3.8%.
Specific embodiment
The purpose of the present invention is achieved through the following technical solutions：
The degree of plus plate current-collecting body alloy foil, ingredient is：Fe：0.3~0.4wt%, Cu：0.06~
0.15wt%, La：0.1~0.15wt%, surplus are aluminium and some other inevitable impurity.
Alloy foil of the invention, preferably copper content are：0.06~0.08wt%.
In addition the present invention provides a kind of manufacturing method of plus plate current-collecting body alloy foil, comprises the concrete steps that：
(1) industrial aluminium ingot is melted first, sequentially adds Al-75wt%Fe, Al- in smelting furnace according to aforementioned proportion
The intermediate alloy of 50wt%Cu, Al-20wt%La.Control composition content F e：0.3~0.4wt%, Cu：0.06~0.15wt%,
La：0.1~0.15wt%, surplus are aluminium and some other inevitable impurity.
(2) aluminium alloy cast ingot will be obtained and carry out homogenize process, temperature is set as 590~600 DEG C, soaking time 8 hours.
Implement hot rolling after homogenize process, hot rolling be 460~500 DEG C at a temperature of, control drafts is 70~85%.
(3) hot rolled plate is cold-rolled to 0.15-0.12mm, control drafts is 60~75%.
(4) cold rolled sheet is carried out after intermediate annealing 2 hours to the foil rolling of 40% or more working modulus at 330~380 DEG C
Obtain the alloy foil with a thickness of 0.02~0.09mm.
The ingredient comparison of high-strength high-elongation ratio aluminum alloy and comparative example aluminium alloy of the invention is shown in Table 1.
The aluminium alloy of the present invention of table 1 and comparative example al alloy component (wt%)
Two affluxion body in lithium ion batteries alloy foil patents of the present invention and an affluxion body in lithium ion batteries are common
Aluminium alloy is as a comparison case.Comparative example 1 is patent CN102747251A, gives a kind of high-elongation collector alloy foil
And its manufacturing method.Comparative example 2 is patent CN103397227A, give a kind of high conductivity collector alloy foil and its
Preparation method.Comparative example 3 is 1070Al alloy.
From table 1 it follows that aluminium alloy of the present invention reduces containing for Fe element compared with the al alloy component of comparative example 1
Range is measured, and is free of common alloy elements Si.Addition Fe element can enable aluminum alloy to intensity raising.Fe element additive amount is too low,
Intensity cannot improve.It is difficult then to maintain high conductivity for Fe element adding too much, so reduce Fe element content range.
Not adding Si element can avoid hard crisp phase Al9Fe2Si2Generation, improve alloy casting character, be conducive to subsequent rolling and process.Cu
Even addition also has the effect of improving alloy strength element on a small quantity.Compared with the al alloy component of comparative example 2, the present invention is closed
Golden ingredient design is simple, is free of Si, Mn, Mg, Ti, B element, contains less Fe simultaneously.Excessively high Fe, although can be promoted strong
Degree, but elongation percentage rising reaches saturation, cannot give full play to the effect for making intensity and elongation percentage Synchronous lifting.With comparative example 3
Al alloy component compare, design of alloy of the present invention is simpler, be free of Si, Mg, Mn, Ti, V, Zn element, have higher
Fe content is conducive to the promotion of intensity and elongation percentage.In addition the addition meeting refining alloy crystal grain of La element, promotes aluminium alloy
Al3Fe Second Phase Precipitation and nodularization can also generate AlFeLa cenotype, further reinforced alloys.
Alloy foil prepared in accordance with the present invention is a kind of high-strength with still having after rolling state high intensity and heat treatment
The Aluminium alloy foil for lithium ion battery positive current collector of degree.
Hereinafter, by embodiment, the present invention is described in detail, and certainly, the present embodiment is only an example, the present invention
It is not limited to these embodiments.
The alloy cast ingot with a thickness of 30mm is made in the aluminium alloy that ingredient shown in table 2 is prepared using vacuum induction melting method.So
Afterwards, 590~600 DEG C of homogenize process for being kept for 8 hours, facing later, milling face are carried out to the ingot casting.At 460~500 DEG C
Temperature range, control drafts in 70~85% range hot rollings to 3mm.Drafts is controlled in 60~75% ranges, by hot rolling
Plate is cold-rolled to 0.15-0.12mm.Cold rolled sheet is subjected to 40% or more working modulus after intermediate annealing 2 hours at 330~380 DEG C
Foil rolling obtain the alloy foil with a thickness of 0.02~0.09mm.
2 al alloy component of table
Then 140 DEG C or 160 DEG C are carried out respectively to be heat-treated within constant temperature 10 hours.It is additionally carried out at 160 DEG C of constant temperature, 2 hours heat
Reason.To obtained each aluminium alloy foil material, after measuring tensile strength, elongation percentage, conductivity, 140 DEG C of heat treatments in constant temperature 10 hours
Tensile strength and elongation percentage, 160 DEG C constant temperature 10 hours heat treatment after tensile strength and elongation percentage, 160 DEG C of constant temperature, 2 hours heat
Tensile strength that treated and elongation percentage, and evaluated.Test result is shown in Table 3.
The performance test process that the aluminum alloy sample of heterogeneity is carried out in above-described embodiment and comparative example is as follows：
(1) tensile tests at room：Standard tensile specimen is made according to national standard GB/T228-2002, it is omnipotent in Zwick Z20
To stretch on tensile testing machine, tensile strength and elongation percentage are measured；Additionally, it is contemplated that simulation drying process, small to 140 DEG C of constant temperature 10
When, 160 DEG C of constant temperature 10 hours, the alloy foil after 160 DEG C of heat treatments in constant temperature 2 hours, cut along rolling direction, by it is above-mentioned equally
Mode measure tensile strength and elongation percentage.It is qualification as tensile strength is greater than 210MPa, is otherwise denoted as unqualified.After heat treatment
Tensile strength such as larger than 200MPa be qualification, be otherwise denoted as unqualified.
(2) conductivity test：Using the conductivity of SIGMATEST2.069 conductivity measurement instrument test aluminum alloy specimen.
It is qualification that note, which is greater than 50%IACS, is otherwise denoted as unqualified.
3 alloy foil the performance test results of table
In Examples 1 to 3, good assessment result has been obtained：In the case where meeting conductivity, alloy foil after cold rolling
With very high tensile strength, after 140 DEG C are heat-treated for constant temperature 10 hours and 160 DEG C for constant temperature 10 hours, most of alloy foils
Tensile strength only slightly decline, individual alloy foils even risen (see 140 DEG C constant temperature 10 hours heat treatment after implementation
Example 1)；Compared to the elongation percentage of cold rolling alloy, elongation percentage improves at least 1 times or more after two kinds of heat treatments.5.02% is reached as high as,
Minimum is also 3.8%.The far super comparative example 2 (2.1%) of elongation percentage, can preferably meet alloy foil coating positive active material when
It is required that also indicating that alloy foil of the invention has good rolling.
The tensile strength of the embodiment 3 of 160 DEG C of heat treatment in constant temperature 2 hours does not reach requirement, because of heat treatment time mistake
Short, tensile strength is insufficient.Thus need to extend heat treatment time.
In comparative example 1 and comparative example 2, because the content of Fe is few, tensile strength is insufficient, and elongation percentage is also relatively low.
It designs by using reasonable ingredient so that above-described embodiment has obtained good foil performance.Appropriate Fe element
Addition is so that aluminium alloy realizes the synchronous effect for improving intensity and elongation percentage.A small amount of Cu element has the effect for improving alloy strength
Fruit.
The addition of La element can promote aluminium alloy Al with refining alloy crystal grain3The precipitation and nodularization of the second phase of Fe, can also give birth to
At AlFeLa cenotype, further reinforced alloys.
Under the teaching of the present invention and the above embodiments, those skilled in the art are easy to it is envisioned that cited by the present invention
Or each raw material enumerated or its equivalent alterations, each processing method or its equivalent alterations can realize the present invention and each original
The parameter bound value of material and processing method, interval value can realize the present invention, embodiment numerous to list herein.
Claims (4)
1. a kind of high intensity collector alloy foil, characterized in that contain Fe：0.3~0.4wt%, Cu：0.06~
0.15wt%, La：0.1~0.15wt%, surplus are aluminium.
2. alloy foil according to claim 1, which is characterized in that the preferred weight proportion of copper in the material component：
0.06~0.08wt%.
3. a kind of manufacturing method of alloy foil as claimed in claim 1 or 2, which is characterized in that comprise the steps of：
A) it joined the intermediate alloy Al-20wt%La of rare-earth elements La during alloy melting.
B) homogenize process that resulting aluminium alloy ingot bar is kept 8 hours at 590-600 DEG C is cast；
Implement hot rolling, cold rolling, intermediate annealing and foil rolling later, obtains the alloy foil with a thickness of 0.02~0.09mm；Specifically
, the hot rolling be 460~500 DEG C at a temperature of, control drafts be 70~85%；Hot rolled plate is cold-rolled to
0.15mm, control drafts are 60~75%；Cold rolled sheet is carried out working modulus after intermediate annealing 2 hours at 330-380 DEG C to exist
40% or more foil rolling obtains the alloy foil with a thickness of 0.02~0.09mm.
4. manufacturing method according to claim 3, which is characterized in that the tensile strength of cold rolling alloy is greater than 215MPa, prolongs
Rate is stretched greater than 1.7%.In 140 DEG C of constant temperature or 160 DEG C after constant temperature 10 hours, the tensile strength of alloy is greater than 205MPa, elongation percentage
Greater than 3.8%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810698743.9A CN108823437A (en) | 2018-06-29 | 2018-06-29 | A kind of high intensity collector alloy foil and its manufacturing method |
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| CN201810698743.9A CN108823437A (en) | 2018-06-29 | 2018-06-29 | A kind of high intensity collector alloy foil and its manufacturing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004329A (en) * | 2019-04-09 | 2019-07-12 | 上海华峰铝业股份有限公司 | A kind of high-strength high conductivity Al-Fe-La-xCu alloy foil |
| CN110016591A (en) * | 2019-04-09 | 2019-07-16 | 上海华峰铝业股份有限公司 | A kind of high conductivity collector alloy foil and its manufacturing method |
| CN110227714A (en) * | 2019-06-25 | 2019-09-13 | 江苏大亚铝业有限公司 | Lithium battery 1235 alloy double-face optical aluminum foils and preparation method thereof |
| CN111139378A (en) * | 2020-01-19 | 2020-05-12 | 上海华峰铝业股份有限公司 | Aluminum foil for high-strength high-conductivity current collector and preparation method thereof |
| CN111224108A (en) * | 2020-01-19 | 2020-06-02 | 上海华峰铝业股份有限公司 | Positive current collector of low-resistivity lithium ion battery |
| CN112899505A (en) * | 2021-01-13 | 2021-06-04 | 上海华峰铝业股份有限公司 | High-strength aluminum alloy foil for positive current collector and preparation method thereof |
| CN114875277A (en) * | 2022-04-27 | 2022-08-09 | 聊城市博源节能科技有限公司 | Motor rotor aluminum alloy for new energy automobile and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747251A (en) * | 2011-04-21 | 2012-10-24 | 三菱铝株式会社 | Aluminium alloy foil used for current collector of positive electrode of lithium ion battery, and manufacturing method thereof |
| CN103436746A (en) * | 2013-07-30 | 2013-12-11 | 江阴新仁科技有限公司 | Special rare earth-containing aluminum alloy foil for pole tab and preparation method of special rare earth-containing aluminum alloy foil |
| JP5976158B1 (en) * | 2015-04-16 | 2016-08-23 | 三菱アルミニウム株式会社 | Aluminum foil for PTP and method for producing the same |
| JP2018076590A (en) * | 2017-10-31 | 2018-05-17 | 株式会社Uacj | Aluminum alloy foil for electrode collector body and manufacturing method therefor |
-
2018
- 2018-06-29 CN CN201810698743.9A patent/CN108823437A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747251A (en) * | 2011-04-21 | 2012-10-24 | 三菱铝株式会社 | Aluminium alloy foil used for current collector of positive electrode of lithium ion battery, and manufacturing method thereof |
| CN103436746A (en) * | 2013-07-30 | 2013-12-11 | 江阴新仁科技有限公司 | Special rare earth-containing aluminum alloy foil for pole tab and preparation method of special rare earth-containing aluminum alloy foil |
| JP5976158B1 (en) * | 2015-04-16 | 2016-08-23 | 三菱アルミニウム株式会社 | Aluminum foil for PTP and method for producing the same |
| JP2018076590A (en) * | 2017-10-31 | 2018-05-17 | 株式会社Uacj | Aluminum alloy foil for electrode collector body and manufacturing method therefor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004329A (en) * | 2019-04-09 | 2019-07-12 | 上海华峰铝业股份有限公司 | A kind of high-strength high conductivity Al-Fe-La-xCu alloy foil |
| CN110016591A (en) * | 2019-04-09 | 2019-07-16 | 上海华峰铝业股份有限公司 | A kind of high conductivity collector alloy foil and its manufacturing method |
| CN110227714A (en) * | 2019-06-25 | 2019-09-13 | 江苏大亚铝业有限公司 | Lithium battery 1235 alloy double-face optical aluminum foils and preparation method thereof |
| CN111139378A (en) * | 2020-01-19 | 2020-05-12 | 上海华峰铝业股份有限公司 | Aluminum foil for high-strength high-conductivity current collector and preparation method thereof |
| CN111224108A (en) * | 2020-01-19 | 2020-06-02 | 上海华峰铝业股份有限公司 | Positive current collector of low-resistivity lithium ion battery |
| CN112899505A (en) * | 2021-01-13 | 2021-06-04 | 上海华峰铝业股份有限公司 | High-strength aluminum alloy foil for positive current collector and preparation method thereof |
| CN114875277A (en) * | 2022-04-27 | 2022-08-09 | 聊城市博源节能科技有限公司 | Motor rotor aluminum alloy for new energy automobile and preparation method thereof |
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Address after: 201507 1111 Yue Gong Road, Jinshan District, Shanghai Applicant after: Shanghai Huafeng Aluminum Co., Ltd. Address before: 201507 1111 Yue Gong Road, Jinshan District, Shanghai Applicant before: HUAFON NIKKEI ALUMINIUM CORPORATION |
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Application publication date: 20181116 |