CN109750336A - A kind of production method of lithium ion collector corronil foil - Google Patents
A kind of production method of lithium ion collector corronil foil Download PDFInfo
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- CN109750336A CN109750336A CN201810887254.8A CN201810887254A CN109750336A CN 109750336 A CN109750336 A CN 109750336A CN 201810887254 A CN201810887254 A CN 201810887254A CN 109750336 A CN109750336 A CN 109750336A
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- lithium ion
- ion collector
- electrolyte
- production method
- corronil
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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
The invention discloses a kind of production methods of lithium ion collector corronil foil, it is characterised in that the following steps are included: being deposited using special anode plate to electrolytic copper foil；Iridium is applied as electrolytic anode plate using titanium；Lithium electrolytic copper foil is subjected to pickling, to eliminate the influence of electrolytic copper foil superficial oxidation copper；It is cleaned with RO membrane reverse osmosis water, is cleaned by atomizer；Electrolyte is stirred and pure nickel sulfate solution is made using analytical pure sulfuric acid nickel and the pure boric acid of analysis, and solution is diluted using RO film plasma water.The present invention is due to using above-mentioned process, there is phenomenon of rupture in effective solution lithium ion collector collector in charge and discharge process, lithium ion collector deposited nickel layer texture is closely uniform, distribution is neat, the uniform deviation of thickness is less than 0.01um, it is excellent using standard, surface solderability that tensile strength and elongation percentage reach lithium ion battery, and electric conductivity is good, high temperature resistant, fine corrosion resistance.
Description
Technical field
The invention belongs to electrolytic copper foil production technical field more particularly to a kind of lifes of lithium ion collector corronil foil
Production method.
Background technique
In recent years, with the long-time of the promotion of the course continuation mileage of new-energy automobile, model plane, electric tool and electronic toy
The development of work requires lithium ion battery that is also higher and higher, but being commercialized at present to the multiplying power discharging property of lithium ion battery
Continuous discharge more than 20C multiplying power difficult to realize, the main reason is that battery, in big multiplying power discharging, lithium ion battery fever is tight
Weight, battery bulk temperature is excessively high, so that battery is easy thermal runaway, the damage to lithium ion collector, so as to cause battery multiplying power
Discharge performance and cycle performance are deteriorated, or even cause the fracture of pole piece, cause battery short circuit.Multiplying power discharging property is good in order to obtain
And on the one hand safe and reliable lithium ion battery will avoid lithium ion battery from generating a large amount of heat as far as possible in heavy-current discharge,
On the other hand the rate of heat dispation of battery is improved, the former ameliorative way can be from positive and negative pole material, electrolyte and positive and negative electrode pole piece
Design is started with, and the latter can improve the rate of heat dispation of battery by optimization battery structure, to improve the safety of battery.
Lithium ion collector is the collection carrier of electron energy transmitting, so improving lithium ion when the big multiplying power discharging of battery
The temperature tolerance of battery afflux liquid, and guarantee the transmission of the wide element of electronics.Conventional affluxion body in lithium ion batteries uses common copper foil,
It causes damage of the heat to lithium ion collector in electrolyte charge and discharge, since the good corrosion resistance and oxygen-proof property of nickel are high
Feature, the strong feature of copper metal electric conductivity, and cupro-nickel copper alloy foil has excellent electric conductivity, conductivity is close to fine copper
Conductivity, about 584000 S/cm.Technique to have developed lithium ion collector corronil foil.
When making lithium ion collector corronil foil, only holding electrolytic copper foil is when carrying out deposition nickel, Neng Goujun
The two sides of even deposit electrolyte copper foil, is implemented as lithium ion battery, itself is a constant volume reaction unit, such lithium from
Collection of the subset fluid corronil foil as lithium ion battery electronics.So the electronics for how allowing collector to be collected into is with safety
The mode of property is exported, while being ensured against lithium-ion battery electrolytes and not generated corrosion and lithium ion battery charge and discharge to pole piece
Pole piece is broken when electric, is all had certain problems in cost and battery safety.In order to solve the problems, such as it is this kind of exist, examine
Consider its parent's profit effect, the processing method for producing lithium ion collector production corronil foil.
Summary of the invention
The purpose of the present invention is to provide a kind of production methods of lithium ion collector corronil foil, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of life of lithium ion collector corronil foil
Production method, it is characterised in that the following steps are included:
Step (1): electrolytic copper foil is deposited using special anode plate；
Step (2): iridium is applied as electrolytic anode plate using titanium；
Step (3): lithium electrolytic copper foil is subjected to pickling, to eliminate the influence of electrolytic copper foil superficial oxidation copper；
Step (4): it is cleaned with RO membrane reverse osmosis water, is cleaned by atomizer；
Step (5): electrolyte is stirred and pure nickel sulfate solution, solution is made using analytical pure sulfuric acid nickel and the pure boric acid of analysis
It is diluted using RO film plasma water；
Step (6): in electrolyte nickel content be 180g/L, boric acid content 70g/L；PH range 3.4-3.9；35 degree of temperature；
Step (7): electrolyte is heated to 35 degree, the organic blending additive of electrolyte addition includes: organic cooperation additive
PPS, TPP and ATPN, the organic blending additive flow are 20mL/min, and after mixing thoroughly, electrolyte enters anode slot；
Step (8): electrolyte is filtered using fusion-jet type filter；
Step (9): for electrolyte under electric field action, current density 80A/m2, cation shifts to cathode, and anion shifts to sun
Pole is electrochemically reacted；
Step (10): it is cleaned using RO membrane reverse osmosis water；
Step (11): it is dried by heating, drying bellows.
Preferably, described to use 9mm Titanium board (TC4) in step (2) middle-jiao yang, function of the spleen and stomach pole plate, it is applied in titanium plate by electrostatic spraying
Cover metal iridium 1mm.
Preferably, described that pickling is carried out using content 50g/l dilute sulfuric acid in step (3).
Preferably, described that PH adjustment is carried out using nickelous carbonate in step (6).
Preferably, the PPS organic additive of 10ppm mass parts is added in the water of 1000ml in step (7) a metallic.
Preferably, 30ppmTPp organic additive is added in the water of 1000ml in step (7) a metallic.
Preferably, 50ppmATPN organic additive is added in the water of 1000ml in step (7) a metallic.
Preferably, the fine filter fusion-jet type filtering accuracy in step (8) is 1um.
Compared with prior art, the beneficial effects of the present invention are: due to using above-mentioned process, effective solution lithium
There is phenomenon of rupture in ion collector collector in charge and discharge process, and lithium ion collector deposited nickel layer texture is closely equal
Even, distribution is neat, and the uniform deviation of thickness is less than 0.01um, tensile strength and elongation percentage reach lithium ion battery using standard,
Surface solderability is excellent, and electric conductivity is good, high temperature resistant, fine corrosion resistance.
Detailed description of the invention
Fig. 1 is a kind of production method process flow simple diagram of lithium ion collector corronil foil of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of producer of lithium ion collector corronil foil
Method, it is characterised in that the following steps are included: lithium ion collector corronil foil applies iridium anode plate to cathode copper using special titanium
Foil two sides is deposited, and is precipitated to reach the good nickel layer of each end face even compact.
For lithium ion collector electrolytic copper foil because electrolysis easily causes foil face to aoxidize out, pickling liquid uses RO film reverse osmosis
Saturating deionized water and dilute sulfuric acid are matched, and to remove copper oxide surface, while being carried out using RO membrane reverse osmosis water by nozzle
Cleaning, to guarantee that lithium ion copper foil of affluxion body is clean, electrolyte preparation is exactly using analytical pure sulfuric acid nickel, analysis boric acid acid and RO
Reverse osmosis deionized water is added in agitator tank, in the case where temperature is 35 degree of constant temperature, carries out pH value adjustment using nickelous carbonate
3.5-3.8 finally obtaining nickel sulfate solution.When lithium ion collector deposits nickel in production process, electrolyte is all circulation
It uses, constantly from precipitating nickel on electrolytic copper foil two sides, so that the nickel in electrolyte is constantly consumed, and by analytical pure sulfuric acid
Nickel constantly dissolves the nickel consumed in supplement electrolyte, and the nickel content in electrolyte is made to remain balance.Nickelous carbonate is utilized simultaneously
The adjustment of PH value is carried out, not only to guarantee that electrolyte continuously recycles in electrolyte preparation process, it will also be in time according to electricity
Solution nickel output adjusts the rate of molten copper and carrys out stability contorting electrolyte composition with this.The ingredient of electrolyte: nickel sulfate nickel content is
180g/L, boric acid content 70g/L；PH range 3.4-3.9；Electrolyte is heated to 35 degree, organic mixing of electrolyte addition
Additive includes: organic cooperation additive PPS, TPP and ATPN, which is 20mL/min, after mixing thoroughly,
Electrolyte enters anode slot；Electrolyte is filtered using fusion-jet type filter, and under electric field action, current density is electrolyte
80A/m2, cation shift to cathode, and anion shifts to anode, are electrochemically reacted, and change nickel original by organic additive
The structure electrical migration pattern and link structure of son crystallization, so that one kind is made can be with the electrolytic copper foil of corronil.
Thus the electrolytic copper foil for the corronil foil produced, high-temperature stability is big, corrosion resistance is strong, solderability is high.Through
High-end customer is detected using experimental data: the collector produced with the electrolytic copper foil of this corronil foil, as new energy electricity
Collect electronics, surface roughness Ra 0.1um, the thickness uniformity deviation 0.01um in pond.Especially high anti-side corrosivity, solves
New energy battery charging and discharging causes the technical issues of collector oxidation corrosion and fracture pole piece, while it is anti-that nickel metallic high temperature is utilized
Oxidisability and the good electric conductivity of electrolytic copper foil, greatly improve the safety of new energy battery.It avoids in the electrolytic solution
There is corrosivity and fracture pole piece, causes new energy battery short circuit, the problems such as charge and discharge are unstable, wherein heat-resisting quantity and anti-side
Three corrosivity, electric conductivity indexs have all reached the use standard of new energy battery, which preferably resolves
There is the technical bottleneck that corrosion exists and charge and discharge high temperature causes pole piece to be broken in new energy battery afflux liquid pole piece, and has filled up market
Blank.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of production method of lithium ion collector corronil foil, it is characterised in that the following steps are included:
Step (1): electrolytic copper foil is deposited using special anode plate；
Step (2): iridium is applied as electrolytic anode plate using titanium；
Step (3): lithium electrolytic copper foil is subjected to pickling, to eliminate the influence of electrolytic copper foil superficial oxidation copper；
Step (4): it is cleaned with RO membrane reverse osmosis water, is cleaned by atomizer；
Step (5): electrolyte is stirred and pure nickel sulfate solution, solution is made using analytical pure sulfuric acid nickel and the pure boric acid of analysis
It is diluted using RO film plasma water；
Step (6): in electrolyte nickel content be 180g/L, boric acid content 70g/L；PH range 3.4-3.9；35 degree of temperature；
Step (7): electrolyte is heated to 35 degree, the organic blending additive of electrolyte addition includes: organic cooperation additive
PPS, TPP and ATPN, the organic blending additive flow are 20mL/min, and after mixing thoroughly, electrolyte enters anode slot；
Step (8): electrolyte is filtered using fusion-jet type filter；
Step (9): for electrolyte under electric field action, current density 80A/m2, cation shifts to cathode, and anion shifts to sun
Pole is electrochemically reacted；
Step (10): it is cleaned using RO membrane reverse osmosis water；
Step (11): it is dried by heating, drying bellows.
2. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
9mm Titanium board (TC4) is used in step (2) middle-jiao yang, function of the spleen and stomach pole plate, metal iridium 1mm is coated in titanium plate by electrostatic spraying.
3. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
Pickling is carried out using content 50g/l dilute sulfuric acid in step (3).
4. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
PH adjustment is carried out using nickelous carbonate in step (6).
5. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
The PPS organic additive of 10ppm mass parts is added in 1000ml water in step (7) a metallic.
6. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
30ppmTPp organic additive is added in 1000ml water in step (7) a metallic.
7. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
50ppmATPN organic additive is added in 1000ml water in step (7) a metallic.
8. a kind of production method of lithium ion collector corronil foil according to claim 1, it is characterised in that: described
Fine filter fusion-jet type filtering accuracy is 1um in step (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810887254.8A CN109750336A (en) | 2018-08-06 | 2018-08-06 | A kind of production method of lithium ion collector corronil foil |
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| CN201810887254.8A CN109750336A (en) | 2018-08-06 | 2018-08-06 | A kind of production method of lithium ion collector corronil foil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644025A (en) * | 2019-11-12 | 2020-01-03 | 长沙理工大学 | Ultrathin nickel-copper alloy foil and preparation method thereof |
| CN111321437A (en) * | 2020-03-31 | 2020-06-23 | 安徽铜冠铜箔有限公司 | Copper-nickel alloy foil and electrodeposition preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022778A (en) * | 2017-03-12 | 2017-08-08 | 山东金盛源电子材料有限公司 | The lug that the method and application this method of a kind of four sides nickel plating electrolytic copper foil are produced |
| CN108893760A (en) * | 2018-06-30 | 2018-11-27 | 青岛昊月鑫电子材料有限公司 | A kind of production method of lithium ion collector corronil foil |
-
2018
- 2018-08-06 CN CN201810887254.8A patent/CN109750336A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022778A (en) * | 2017-03-12 | 2017-08-08 | 山东金盛源电子材料有限公司 | The lug that the method and application this method of a kind of four sides nickel plating electrolytic copper foil are produced |
| CN108893760A (en) * | 2018-06-30 | 2018-11-27 | 青岛昊月鑫电子材料有限公司 | A kind of production method of lithium ion collector corronil foil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644025A (en) * | 2019-11-12 | 2020-01-03 | 长沙理工大学 | Ultrathin nickel-copper alloy foil and preparation method thereof |
| CN111321437A (en) * | 2020-03-31 | 2020-06-23 | 安徽铜冠铜箔有限公司 | Copper-nickel alloy foil and electrodeposition preparation method thereof |
| CN111321437B (en) * | 2020-03-31 | 2021-04-27 | 安徽铜冠铜箔集团股份有限公司 | Copper-nickel alloy foil and electrodeposition preparation method thereof |
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