CN105914393B - A kind of lithium-ion-power cell Ni-based conductor material and preparation method thereof - Google Patents
A kind of lithium-ion-power cell Ni-based conductor material and preparation method thereof Download PDFInfo
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- CN105914393B CN105914393B CN201610491644.4A CN201610491644A CN105914393B CN 105914393 B CN105914393 B CN 105914393B CN 201610491644 A CN201610491644 A CN 201610491644A CN 105914393 B CN105914393 B CN 105914393B
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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
- H01M10/05—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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or 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
Abstract
A kind of lithium-ion-power cell Ni-based conductor material and preparation method thereof, which contains the component of following parts by weight：50-60 parts of nickel, 3.2-3.8 parts of magnesium, 27-33 parts of copper, 9-11 parts of aluminium, 0.45-0.55 parts of titanium, 0.18-0.22 parts of cobalt, 0.45-0.55 parts of chromium, 0.27-0.33 parts of rare earth element.The present invention is by the way that using nickel magnesium alloy as Metal Substrate, the metallic elements such as addition nickel, copper, aluminium can substantially reduce the nickel content in material, reduce material cost；By adding nickel magnesium alloy, deoxidation can be effectively acted as, efficiently solves that magnesium fusing point is low to easy to produce a large amount of smog, it is not easy to the problem of melting；Addition copper, aluminium can effectively improve the electric conductivity and ductility of material, improve processability；Addition titanium, cobalt, chromium and rare earth material can effectively improve 40% or more the processing performance of material.
Description
Technical field
The present invention relates to a kind of field of lithium ion battery, especially Ni-based conductor material and preparation method, specifically
It is a kind of lithium-ion-power cell Ni-based conductor material and preparation method thereof.
Background technology
Currently, the lithium-ion-power cells conductor material such as existing pure nickel, steel nickel plating, copper, the compound, aluminium of nickel aluminium will appear point
The problems such as layer, component segregation, failure welding, poor processability, higher material cost, pure nickel material are limited by nickel physical characteristic
System, processability is poor, and welding performance is poor, is easy rosin joint even desoldering, and resistivity unevenness is easy to cause due to processing
It is even；The reliability and punching press edge of the coating of plating nickel material cannot meet properties of product requirement after being destroyed；The power of copper, aluminum material
It learns performance and antiseptic property is also insufficient for properties of product requirement.
Moreover, width of the pure nickel with foil there is no substantially within 350mm and can exceed that 450mm before, accuracy tolerance can only
Control is in ± 0.008mm.The social demand of continuous development of continuous improvement with to(for) battery performance requirements, no matter is original material
It is that cannot gradually have been met the requirements in width, precision, or in aspect of performance such as electric conductivities.And the raising of width can carry
The availability of high material reduces the generation of punching press leftover pieces, on the one hand improves ram efficiency, on the other hand improve material
The utilization rate of material can substantially reduce product cost.This requires a kind of novel conductor material to meet high end cells, battery pack
Use demand.
Invention content
The purpose of the present invention is for the above problem of the pure nickel with foil, propose a kind of Ni-based conductor of lithium-ion-power cell
Material and preparation method thereof.
The technical scheme is that：
A kind of Ni-based conductor material of lithium-ion-power cell, it contains the component of following parts by weight：Nickel Ni50-60 parts,
Mg3.2-3.8 parts of magnesium, Cu27-33 parts of copper, Al9-11 parts of aluminium, Ti0.45-0.55 parts of titanium, Co0.18-0.22 parts of cobalt, chromium
Cr0.45-0.55 parts, 0.27-0.33 parts of rare earth element.
The conductor material of the present invention contains the component of following parts by weight：Nickel Ni55 parts, Mg3.5 parts of magnesium, Cu30 parts of copper, aluminium
Al10 parts, Ti0.5 parts of titanium, Co0.2 parts of cobalt, Cr0.5 parts of chromium, 0.3 part of rare earth element.
The rare earth element of the present invention uses lanthanide series, is made of one or more in lanthanum La, cerium Ce, yttrium Y and scandium Sc；
When using a variety of compositions in lanthanum La, cerium Ce, yttrium Y and scandium Sc, lanthanum La, cerium Ce, the component of yttrium Y and scandium Sc parts by weight are preferred：
45 parts, 25 parts, 15 parts, 15 parts.
A kind of lithium-ion-power cell preparation method of Ni-based conductor material, it includes the following steps：
（1）Nickel, copper, aluminium are made annealing treatment；
（2）By nickel magnesium alloy, nickel, copper, aluminium, titanium, cobalt and chromium uniform stirring, it is put into vacuum melting furnace later and is once melted
Refining；
（3）After melting once, rare earth element is added and carries out secondary smelting；
（4）After secondary smelting, inert gas is poured, and using bet pressure casting method cast material ingot blank, complete
The preparation of the Ni-based conductor material of lithium-ion-power cell.
The proportioning of parts by weight of raw materials of the present invention is：21-26 parts of nickel magnesium alloy, 32-38 parts of nickel, 27-33 parts of copper, aluminium 9-11
Part, 0.45-0.55 parts of titanium, 0.18-0.22 parts of cobalt, 0.45-0.55 parts of chromium and 0.27-0.33 parts of rare earth element.
The purity of the nickel of the present invention is 99.999%；In nickel magnesium alloy, nickel：Magnesium component ratio is 85%：15%.
In the present invention, the temperature range of melting once is 600-1000 DEG C, and heating time is 20-40 minutes；Secondary smelting
Temperature range be 1600-2000 degree, heating time is 40-60 minutes.
In the present invention, the temperature of melting once is 800 DEG C, and heating time is 30 minutes；The temperature of secondary smelting is 1800
Degree, heating time are 50 minutes.
The step of the present invention（4）In, inert gas uses argon gas.
The step of the present invention（3）In, rare earth element uses lanthanide series, by one kind in lanthanum La, cerium Ce, yttrium Y and scandium Sc
Or a variety of compositions；When using a variety of compositions in lanthanum La, cerium Ce, yttrium Y and scandium Sc, lanthanum La, cerium Ce, yttrium Y and scandium Sc parts by weight
Component it is preferred：45 parts, 25 parts, 15 parts, 15 parts.
Beneficial effects of the present invention：
The present invention is by using nickel magnesium alloy as Metal Substrate, the metallic elements such as addition nickel, copper, aluminium, can be with：（1）Machinability
40% or more can be improved；（2）Uniform resistivity, rice resistance deviation are less than 0.8%；（3）15% or more is improved at material；（4）Material system
Standby energy consumption reduces by 30%；（5）It welds pulling capacity and improves 25%.
The nickel-base material of the present invention substantially reduces the nickel content in material, and the nickel content by pure nickel material 99.999% is big
It is big to reduce, reduce material cost；By adding nickel magnesium alloy, deoxidation can be effectively acted as, magnesium fusing point is efficiently solved
It is low to easy to produce a large amount of smog, it is not easy to the problem of melting；Addition copper, aluminium can effectively improve electric conductivity and the extension of material
Performance improves processability；Addition titanium, cobalt, chromium and rare earth material can effectively improve the processing performance 40% of material with
On.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated.
Embodiment one：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 23.5 parts：35 parts：
30 parts：10 parts：0.5 part：0.2 part：0.5 part：0.3 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 800 DEG C, and rare earth element is added after 30 minutes in heating, and temperature is adjusted to 1800
Degree heats 50 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity, raw material by pure nickel material 99.999% nickel content
It greatly reduces to 55% hereinafter, effectively reducing cost.
Embodiment two：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 21 parts：33 parts：33
Part：11 parts：0.5 part：0.22 part：0.54 part：0.3 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 600 DEG C, and rare earth element is added after 25 minutes in heating, and temperature is adjusted to 1600
Degree heats 55 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity.
Embodiment three：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 26 parts：32 parts：27
Part：11 parts：0.45 part：0.22 part：0.45 part：0.33 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 800 DEG C, and rare earth element is added after 35 minutes in heating, and temperature is adjusted to 1900
Degree heats 60 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity.
Example IV：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 21 parts：32 parts：33
Part：11 parts：0.55 part：0.22 part：0.55 part：0.33 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 1000 DEG C, and rare earth element is added in heating after forty minutes, and temperature is adjusted to 2000
Degree heats 60 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity.
Embodiment five：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 26 parts：38 parts：33
Part：9 parts：0.55 part：0.18 part：0.55 part：0.27 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 1000 DEG C, and rare earth element is added in heating after twenty minutes, and temperature is adjusted to 2000
Degree heats 40 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity.
Embodiment six：
（One）Material：（1）99.999% high-purity nickel bead（2）Nickel：Magnesium component ratio is 85%：15% nickel magnesium alloy powder（3）It is pure
Copper bead（4）Pure aluminium powder（5）Rare earth（6）The metal powders such as titanium, cobalt, chromium.
（Two）Take nickel magnesium alloy：Nickel：Copper：Aluminium：Titanium：Cobalt：Chromium：The proportioning of the parts by weight of raw materials of rare earth is 23 parts：35 parts：28
Part：10 parts：0.5 part：0.2 part：0.5 part：0.3 part.
（Three）Preparation method：
After the material of corresponding amount being taken according to said ratio：（1）First by three kinds of nickel, copper, aluminium materials'uses
ZL201120328531.5 shield type bright annealing ovens are made annealing treatment, material removal surface impurity and oxide；（2）By nickel magnesium
The metal materials such as alloy powder and nickel bead, copper bead carry out uniform stirring, and it is true to put into ZL20120157153.8 after uniform stirring
Empty mid-frequency melting furnace carries out melting, and temperature is adjusted at 800 DEG C, and rare earth element is added in heating after forty minutes, and temperature is adjusted to 1850
Degree heats 45 minutes.It pours inert gas argon gas, and is betted pressure casting method cast material ingot blank using me, can be made in this way
The greater homogeneity of ingot is obtained, bubble-free improves extension power to greatest extent, and thinning microstructure changes the distribution of sundries, from
And ensure the uniformity of nickel-base material ingot and the stability of resistivity.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (8)
1. a kind of Ni-based conductor material of lithium-ion-power cell, it is characterised in that it contains the component of following parts by weight：Nickel Ni
50-60 parts, Mg3.2-3.8 parts of magnesium, Cu27-33 parts of copper, Al9-11 parts of aluminium, Ti0.45-0.55 parts of titanium, Co0.18-0.22 parts of cobalt,
Cr0.45-0.55 parts of chromium, 0.27-0.33 parts of rare earth element；Rare earth element uses lanthanide series, by lanthanum La, cerium Ce, yttrium Y and scandium
One or more compositions in Sc；When using a variety of compositions in lanthanum La, cerium Ce, yttrium Y and scandium Sc, lanthanum La, cerium Ce, yttrium Y and
The component of scandium Sc parts by weight is preferred：45 parts, 25 parts, 15 parts, 15 parts.
2. the Ni-based conductor material of lithium-ion-power cell according to claim 1, it is characterised in that it contains following weight
Measure the component of part：Nickel Ni55 parts, Mg3.5 parts of magnesium, Cu30 parts of copper, Al10 parts of aluminium, Ti0.5 parts of titanium, Co0.2 parts of cobalt, chromium Cr0.5
Part, 0.3 part of rare earth element.
3. the lithium-ion-power cell preparation method of Ni-based conductor material described in a kind of one of claim 1-2, feature
It is that it includes the following steps：
(1) nickel, copper, aluminium are made annealing treatment；
(2) by nickel magnesium alloy, nickel, copper, aluminium, titanium, cobalt and chromium uniform stirring, it is put into vacuum melting furnace later and carries out melting once；
(3) after melting once, rare earth element is added and carries out secondary smelting；
(4) after secondary smelting, pour inert gas, and using bet pressure casting method cast material ingot blank, complete lithium from
The preparation of the Ni-based conductor material of sub- power battery；
The proportioning of parts by weight of raw materials is：21-26 parts of nickel magnesium alloy, 32-38 parts of nickel, 27-33 parts of copper, 9-11 parts of aluminium, titanium 0.45-
0.27-0.33 parts of 0.55 part, 0.18-0.22 parts of cobalt, 0.45-0.55 parts of chromium and rare earth element.
4. the lithium-ion-power cell according to claim 3 preparation method of Ni-based conductor material, it is characterised in that nickel
Purity be 99.999%；In nickel magnesium alloy, nickel：Magnesium component ratio is 85%：15%.
5. the lithium-ion-power cell according to claim 3 preparation method of Ni-based conductor material, it is characterised in that one
The temperature range of secondary melting is 600-1000 DEG C, and heating time is 20-40 minutes；The temperature range of secondary smelting is 1600-
2000 degree, heating time is 40-60 minutes.
6. the lithium-ion-power cell according to claim 5 preparation method of Ni-based conductor material, feature exist
It it is 800 DEG C in the temperature of melting once, heating time is 30 minutes；The temperature of secondary smelting is 1800 degree, heating time 50
Minute.
7. the lithium-ion-power cell according to claim 3 preparation method of Ni-based conductor material, feature exist
In step (4), inert gas uses argon gas.
8. the lithium-ion-power cell according to claim 3 preparation method of Ni-based conductor material, feature exist
In step (3), rare earth element uses lanthanide series, is made of one or more in lanthanum La, cerium Ce, yttrium Y and scandium Sc；When adopting
When with a variety of compositions in lanthanum La, cerium Ce, yttrium Y and scandium Sc, lanthanum La, cerium Ce, the component of yttrium Y and scandium Sc parts by weight are preferred：45 parts,
25 parts, 15 parts, 15 parts.
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