CN101383406A - Battery lead wire and manufacturing method - Google Patents
Battery lead wire and manufacturing method Download PDFInfo
- Publication number
- CN101383406A CN101383406A CNA2007100768887A CN200710076888A CN101383406A CN 101383406 A CN101383406 A CN 101383406A CN A2007100768887 A CNA2007100768887 A CN A2007100768887A CN 200710076888 A CN200710076888 A CN 200710076888A CN 101383406 A CN101383406 A CN 101383406A
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- Prior art keywords
- nickel
- battery lead
- copper
- materials
- lead wire
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title claims description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000000463 material Substances 0.000 claims abstract description 56
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000000137 annealing Methods 0.000 claims abstract description 12
- 238000004381 surface treatment Methods 0.000 claims abstract description 7
- 238000005097 cold rolling Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 24
- 238000005096 rolling process Methods 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002905 metal composite material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 13
- 229910000570 Cupronickel Inorganic materials 0.000 abstract description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 15
- 239000000047 product Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a battery lead-out line which is formed by overlapping the three materials of steel, nickel and copper in a strap-shape and then cold rolling. The manufacturing process for the battery lead-out line comprises the following steps: firstly, the three materials of the steel, the nickel and the copper are cold-rolled into strap-shapes according to the required thickness; secondly, surface treatment is respectively performed to all the strap-shaped materials; thirdly, the three strap-shaped materials are overlapped together in sequence, and then cold-rolled and pressed to reach the thickness required by the lead-out line; fourthly, annealing treatment is carried out; and fifthly, the lead-out line is cut into the required width. The invention fully utilizes the characteristics of all the materials, the differences between the materials of the battery lead-out line and the pure nickel strip material are not significant in the electrical conductivity, the thermal conductivity, the resistance and the welding performance among the lead-out line, the tab and the cover plate thereof, the materials of the battery lead-out line are superior to the copper strip or copper nickel composite material, and can replace the original pure nickel material, therefore, the production cost is reduced, and the problem of the scarcity of the nickel material is also solved. The manufacturing process is not required to change the original physical characteristics of the three materials, and the three materials are closely combined, thereby the service performance of the products is effectively ensured.
Description
[technical field]
The present invention relates to a kind of materials processing and handle, be specifically related to a kind of method that has the battery lead wire of composite construction and make this lead-out wire.
[background technology]
In the battery manufacture field, negative electrode generally need use corresponding lead-out wire to be connected with battery container or negative pole exit in the lithium rechargeable battery, when lead-out wire is connected with electrode and cover plate, for reducing contact resistance, often adopts modes such as spot welding or rivet welding.
At present, the main material of lead-out wire is the pure nickel band on the market, and still, supply falls short of demand because many-sided influence causes metallic nickel in recent years, and nickel material is rare, and the pure nickel price on the market is gone up significantly.And its nickel content of pure nickel band higher (more than 99.5%) that lithium battery uses is obviously risen by the price that influences the pure nickel band in market, thereby the cost of lithium battery is increased, and economic benefit of enterprises descends.
Part producing person wishes to substitute as negative outside wire with copper, but because it has good thermal diffusivity and electric conductivity, so difficult with itself and housing and electrode firm welding.In addition, also develop the copper nickel composite material at present and be used for this direction, but because it only is made up of nickel and copper, so its conductivity still can be far above the conductance of common nickel strap, and equally also exist and the similar weldability of copper strips is relatively poor and the problem of cost aspect.
[summary of the invention]
The present invention is directed to the above-mentioned defective of prior art, a kind of method that has the battery lead wire of low cost, high welding performance and make this battery lead wire is provided.
Technical scheme proposed by the invention is:
A kind of battery lead wire is characterized in that: it is to be composited by steel, nickel, three kinds of materials of copper.
Preferably, described battery lead wire is to be cold rolling the forming in the superimposed successively back of band shape by steel, nickel, three kinds of materials of copper.
Wherein, described steel is that SUS stainless steel, nickel material are content〉99.5% pure nickel, copper is content〉99.5% fine copper.
The battery lead wire manufacturing process that is made of above-mentioned composite material comprises the steps:
1) steel, nickel, three kinds of materials of copper are become band by thickness requirement is cold rolling respectively;
2) above-mentioned each strip material is carried out surface treatment;
3) above-mentioned three kinds of materials are combined with each other, together adopt roll squeezer under cold bundle condition, to suppress then and make it reach the required thickness of lead-out wire;
4) carry out annealing in process;
5) finished product after the annealing in process is cut into required width.
Further, described surface treatment contains following step:
1) steel, nickel, three kinds of material surfaces of copper are cleaned oil removal treatment;
2) steel, nickel, copper are treated that separately mating surface adds rough processing, faying face is formed can the recessed mutually groove mark that closes.
Described composite rolling adopts controlled thermal atmosphere combination process; under the temperature that does not reach melting point metal, with three kinds of metal composite together, in the operation of rolling; protective gas can be charged into, also the system circular treatment of annealing, clean, reroll can be adopted at least once behind the composite rolling.
Charge into protective gas in the described annealing in process process.
The present invention is with respect to the beneficial effect of prior art:
1), the present invention adopts the 3-layer composite material of stainless steel, copper, nickel to replace original single nickel material, the characteristics that above-mentioned each material had have been made full use of, when guaranteeing the required various performance conductivity of battery lead wire, thermal conductivity, resistance, this composite material is more or less the same with welding performance between lug and the cover plate and pure nickel carrying material, and copper strips that is better than in the past using or copper nickel composite material, both reduced production cost, simultaneously also solve the rare problem of nickel material, saved resource.
2) manufacturing process of the present invention adopts compound cold bundle to handle, and can not change three kinds of material original physical characteristics, reaches the instructions for use of product.
3) surface treatment adopted in process for making of the present invention can guarantee fusion better mutually between the three, improves combined strength bination, has guaranteed the serviceability of product effectively.
[description of drawings]
Fig. 1 is a battery lead wire sectional schematic diagram of the present invention;
Fig. 2 is a manufacturing process flow schematic diagram of the present invention;
Fig. 3 is a surface clean process flow schematic diagram of the present invention;
Fig. 4 is the compound cold mutual aid system devised for poor peasants preface schematic flow sheet of the present invention;
Fig. 5 is an annealing process schematic flow sheet of the present invention.
[embodiment]
The present invention has higher electric conductivity according to the copper metal, then tool is cheap for steel class material, production cost is lower, especially have characteristics bright and clean with housing and electrode firm welding, face of weld, solder joint place non-corrosive after the stainless steel material welding, provide a kind of by stainless steel, nickel, the compound battery lead wire that constitutes of three kinds of materials of copper, alternative existing lithium battery is by the lead-out wire of pure nickel material, reduce manufacturing cost, can guarantee various performance conductivity, thermal conductivity, the resistance that battery lead wire is required simultaneously.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, battery lead wire of the present invention specifically is to carry out the compound cold as a whole member that is bundled into by stainless steel 1, nickel 2,3 three kinds of metal materials of copper again after superimposed in regular turn.Wherein, it is content that described stainless steel material adopts SUS stainless steel, nickel material〉99.5% pure nickel, copper is content〉99.5% fine copper.
Referring to Fig. 2, the concrete processing method of battery lead wire that is combined by above-mentioned material is divided into following steps:
The first step: stainless steel, nickel, copper raw material are carried out the preliminary cold band shape that is bundled into, make it reach needed thickness.
Wherein, each banded required thickness calculates according to following expression formula.
In fabrication and processing, obtain the required all-in resistance R of battery lead wire according to resistance relational expression in parallel earlier
0:
In the formula: R
0Be the resistance of composite material, unit: m Ω;
R
1Be the resistance of monomer stainless steel band before compound, unit: m Ω;
R
2Be the resistance of monomer nickel strap before compound, unit: m Ω;
R
3Be the resistance of monomer copper strips before compound, unit: m Ω;
According to the resistance formula:
In the formula: R is the resistance of each material, unit: m Ω;
ρ is this conductivity of electrolyte materials,
L is for measuring the length of material between the anchor clamps, unit: mm
S is the sectional area that electric current flows through this material, unit: mm
2
According to the aforementioned calculation formula, can determine, guaranteeing lead-out wire all-in resistance R
0Under the constant prerequisite, three's thickness can be provided with different ratios on demand, promptly uses the single-layer metal material of different-thickness to reach the composite material of needed different performance, can satisfy the requirement that battery uses.
Second step: will clear up through the stainless steel behind the preliminary cold bundle, nickel, three kinds of metal material surfaces of copper.Referring to Fig. 3; owing to can bring oil stain or oil mark in cold bundle or other production process; therefore; strip material behind the preliminary cold bundle adopts towel or paper handkerchief to dry on the cleaning line earlier, uses degreaser or other cleaning fluids tentatively to clean, polish (thick brush) then and handles, and can remove the oxide skin that generates in the cold bundle process; can remove simultaneously the dirts such as oil, rust on band part surface; finally make the product surface cleaning clean, recover the metal surface true qualities, to prevent bringing harmful effect to subsequent technique.
The 3rd step: further to stainless steel, nickel, handle three kinds of metal surfaces of copper, referring to Fig. 3, each strip material can be put into electroplating pool carries out electroplating processes (this technology is for selecting technology for use, generally at the difficult compound material of part, its electroplate liquid adopts electroplate liquid commonly used in each material prior art to get final product), under the cleaning of recirculated water, adopt banister brush respectively at stainless steel and nickel then, the mating surface for the treatment of between nickel and the copper adds rough processing, make between its each faying face that form can the recessed mutually groove that closes, increase fusion performance between each binding face with this, further improve combined strength bination.After surface treatment finished, each was with upper and lower surface to adopt paper to coat the back and reels, and prevents that the metal surface is scratched.
The 4th step: carry out three kinds of sheet metals superimposed, carry out cold bundle with roll squeezer then, it is combined with each other, referring to Fig. 4, in the recombination process, because when temperature is higher, the easy oxidation in metal surface, be difficult to be combined with each other preferably, simultaneously, the quality of combined strength bination will directly influence the heat-sinking capability (thermal conductivity) of final material, thereby compoundly badly will cause between each material layer interface thermal resistance to increase directly influencing the integral material heat dispersion, more seriously material is easy to generate lamination, can't use.The present invention adopts the compound cold bundle method of controlled thermal atmosphere, under the temperature that does not reach melting point metal, utilizes rolling and certain temperature with three kinds of metal composite together, reduces the composite deformation rate.Lead-out wire compound tense temperature of the present invention generally is controlled at about 500 ℃, uses H in the composite rolling process
2Do reducing gases, N
2As protection gas, generally adopt four roll squeezers, compound front and back all are provided with thickness measurement equipment its reduction ratio when controlling compound cold bundles, thereby control the thickness of composite material, make it reach required thickness requirement.In the composite rolling process, also can adopt the emulsion cooling.After composite rolling is finished with wind-up roll and paper roll around.
The 5th goes on foot: the finished product after composite rolling is finished carries out annealing in process, is used for removing the work hardening phenomenon that recombination process brings, and lattice is rearranged, and the material deliquescing to improve mechanical performance of products, makes the production board face bright and clean, smooth simultaneously.As shown in Figure 5, the present invention anneals and adopts three end temperature control technologies (using hydrogen, nitrogen to be protection gas), and metal hardness is by temperature and stoving time decision; and stoving time reaches by governing speed; the general length of the drying tunnel that is adopted is 10-20m, and baking temperature is 80～500 ℃, and it is divided into three sections; first and third section temperature is lower; be generally 80～250 ℃, second section temperature is higher, is 250～500 ℃; speed is＜8m/min, is preferably 6m/min.
Shown in dotted line block diagram among Fig. 2, in the above-mentioned technical process, also can adopt at least once behind the compound cold bundle of product anneal, cleaning, rolling, anneal cycles technology, to satisfy the requirement of final finished thickness.
The 6th step: the composite material that obtains behind the compound cold bundle is cut,, satisfy production requirement to reach the required width of finished product.
End properties test of the present invention:
A. combined strength bination test:
The finished product composite material of being processed of the present invention is carried out doubling repeatedly to rupture until it, check whether its fracture exists lamination, get manufactured composite material according to the sampling principle and carry out above-mentioned test, find that there is not lamination in it, illustrate that this material is compound better.
B. conductivity test:
Cut the finished product of the present invention and the pure nickel band of certain-length, use instrument for measuring DC resistance to test the resistance at its two ends respectively, by the resistance formula
And conductivity is with the relation of resistivity
Derive its conductivity:
In the formula: σ is the conductivity of tested metal
C. thermal conductivity test: use thermal conductivity tester (as C-1200-S or C-3600-HTS thermal conductivity tester) commonly used in the prior art to test.
D. welding performance test:
Use finished product of the present invention and nickel strap that Copper Foil and cover plate nickel sheet are carried out the weldability test, it then peels off main test composite material with the Copper Foil welding, see whether can have Copper Foil,, it is used its peel strength of cupping machine extension test with nickel sheet welding back to check its welding situation.
Various The performance test results contrasts are as follows:
| Project | Conductance | Thermal conductivity | Welding performance | Other aspect of performance |
| The present invention | 22 | 83 | Approaching with nickel strap | Meet the demands |
| The pure nickel band | 21 | 82 | Better | Meet the demands |
Can obviously find out from above-mentioned test result: each aspect of performance of the present invention and pure nickel band are approaching, partial properties even be better than the pure nickel band, can utilize above-mentioned three kinds of metals to be processed into the more composite material of the number of plies in addition, but also can be by regulating the thickness of homogenous material component, to reach needed performance, have selection and purposes more widely than simple nickel strap as battery lead wire, and can replace the pure nickel material aborning, and do not influence the lithium ion battery performance.Simultaneously, produce battery lead wire with composite material, its price is lower than pure nickel band, is used in the lithium battery production and can reduces material cost, has improved economic benefit of enterprises.
Claims (10)
1. battery lead wire, it is characterized in that: it is to be composited by steel, nickel, three kinds of materials of copper.
2. battery lead wire according to claim 1 is characterized in that: it is to be cold rolling the forming in the superimposed successively back of band shape by steel, nickel, three kinds of materials of copper.
3. battery lead wire according to claim 1 and 2 is characterized in that: described steel is that SUS stainless steel, nickel material are content〉99.5% pure nickel, copper is content〉99.5% fine copper.
4. the manufacturing process of a battery lead wire is characterized in that comprising the steps:
1) steel, nickel, three kinds of materials of copper are become band by thickness requirement is cold rolling respectively;
2) above-mentioned each strip material is carried out surface treatment;
3) above-mentioned three kinds of materials are combined with each other, together adopt roll squeezer under cold bundle condition, to suppress then and make it reach the required thickness of lead-out wire;
4) carry out annealing in process;
5) finished product after the annealing in process is cut into required width.
5. battery lead wire manufacturing process according to claim 4 is characterized in that: described surface treatment contains following step:
1) steel, nickel, three kinds of material surfaces of copper are cleaned oil removal treatment;
2) steel, nickel, copper are treated that separately mating surface adds rough processing, faying face is formed can the recessed mutually groove mark that closes.
6, according to claim 4 or 5 described battery lead wire manufacturing process, it is characterized in that: described composite rolling adopts controlled thermal atmosphere combination process, under the temperature that does not reach melting point metal, with three kinds of metal composite together.
7, battery lead wire manufacturing process according to claim 6 is characterized in that: charge into protective gas in the composite rolling process.
8, battery lead wire manufacturing process according to claim 6 is characterized in that: also adopt the system circular treatment of at least once annealing, clean, reroll behind the described composite rolling.
9, battery lead wire manufacturing process according to claim 7 is characterized in that: also adopt the system circular treatment of at least once annealing, clean, reroll behind composite rolling.
10, according to claim 4 or 5 or 7 or 8 or 9 described battery lead wire manufacturing process, it is characterized in that: charge into protective gas in the described annealing in process process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768887A CN101383406A (en) | 2007-09-06 | 2007-09-06 | Battery lead wire and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768887A CN101383406A (en) | 2007-09-06 | 2007-09-06 | Battery lead wire and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101383406A true CN101383406A (en) | 2009-03-11 |
Family
ID=40463111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100768887A Pending CN101383406A (en) | 2007-09-06 | 2007-09-06 | Battery lead wire and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101383406A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209507B (en) * | 2006-12-28 | 2012-10-17 | 深圳市比克电池有限公司 | Copper strip welding method and lithium cell adopting the copper polar ear |
| CN103707614A (en) * | 2014-01-14 | 2014-04-09 | 深圳市中金岭南科技有限公司 | Production and manufacturing method of ultrathin nickel composite copper strip |
| CN108942248A (en) * | 2018-07-21 | 2018-12-07 | 陈淑红 | A kind of battery nickel band is cut automatically puts spot welding device |
| CN109005317A (en) * | 2017-06-06 | 2018-12-14 | 罗伯特·博世有限公司 | Housing for a camera and manufacturing method |
| CN109609750A (en) * | 2019-01-17 | 2019-04-12 | 西南石油大学 | A kind of zero tension synchronous transmission heat treatment system preparing high performance superconductor wire rod |
| CN111098094A (en) * | 2019-12-30 | 2020-05-05 | 深圳市鑫越新材料科技有限公司 | Battery connecting material and processing technology thereof |
| CN113881834A (en) * | 2020-07-02 | 2022-01-04 | 朱解祖 | Oxygen-free copper-316L stainless steel laminated composite material for high temperature and preparation process thereof |
| CN114300654A (en) * | 2021-12-31 | 2022-04-08 | 四川启睿克科技有限公司 | Uniformly-distributed three-dimensional lithium alloy cathode and preparation method thereof |
-
2007
- 2007-09-06 CN CNA2007100768887A patent/CN101383406A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209507B (en) * | 2006-12-28 | 2012-10-17 | 深圳市比克电池有限公司 | Copper strip welding method and lithium cell adopting the copper polar ear |
| CN103707614A (en) * | 2014-01-14 | 2014-04-09 | 深圳市中金岭南科技有限公司 | Production and manufacturing method of ultrathin nickel composite copper strip |
| CN103707614B (en) * | 2014-01-14 | 2015-12-09 | 深圳市鑫越新材料科技有限公司 | Production and manufacturing method of ultrathin nickel composite copper strip |
| CN109005317A (en) * | 2017-06-06 | 2018-12-14 | 罗伯特·博世有限公司 | Housing for a camera and manufacturing method |
| CN109005317B (en) * | 2017-06-06 | 2021-05-04 | 罗伯特·博世有限公司 | Housing for a camera and method of manufacture |
| CN108942248A (en) * | 2018-07-21 | 2018-12-07 | 陈淑红 | A kind of battery nickel band is cut automatically puts spot welding device |
| CN109609750B (en) * | 2019-01-17 | 2024-04-12 | 西南石油大学 | Zero-tension synchronous transmission heat treatment system for preparing high-performance superconducting wire |
| CN109609750A (en) * | 2019-01-17 | 2019-04-12 | 西南石油大学 | A kind of zero tension synchronous transmission heat treatment system preparing high performance superconductor wire rod |
| CN111098094A (en) * | 2019-12-30 | 2020-05-05 | 深圳市鑫越新材料科技有限公司 | Battery connecting material and processing technology thereof |
| CN113881834A (en) * | 2020-07-02 | 2022-01-04 | 朱解祖 | Oxygen-free copper-316L stainless steel laminated composite material for high temperature and preparation process thereof |
| CN113881834B (en) * | 2020-07-02 | 2024-05-07 | 朱解祖 | Oxygen-free copper-316L stainless steel layered composite material for high temperature and preparation process thereof |
| CN114300654A (en) * | 2021-12-31 | 2022-04-08 | 四川启睿克科技有限公司 | Uniformly-distributed three-dimensional lithium alloy cathode and preparation method thereof |
| CN114300654B (en) * | 2021-12-31 | 2023-06-09 | 四川启睿克科技有限公司 | Uniformly-distributed three-dimensional lithium alloy negative electrode and preparation method thereof |
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Application publication date: 20090311 |