CN109267109A - The two-sided photoelectron copper foil manufacture additive of lithium-ion energy storage battery negative current collector and its application method - Google Patents
The two-sided photoelectron copper foil manufacture additive of lithium-ion energy storage battery negative current collector and its application method Download PDFInfo
- Publication number
- CN109267109A CN109267109A CN201711079427.5A CN201711079427A CN109267109A CN 109267109 A CN109267109 A CN 109267109A CN 201711079427 A CN201711079427 A CN 201711079427A CN 109267109 A CN109267109 A CN 109267109A
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- Prior art keywords
- copper foil
- additive
- lithium
- application method
- sided
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Classifications
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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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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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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- 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 present invention provides a kind of two-sided photoelectron copper foil manufacture additive of lithium-ion energy storage battery negative current collector and its application method, including polypropylene glycol, phytic acid, propane sulfonic acid sodium and hydroxymethyl cellulose, and mentioned component is by weight, each component content ratio is successively are as follows: 10-15:2-10:1.5-5:120-150.To solve that the copper foil of high tensile (being greater than 55kg/mm2) and deep drawing quality (being greater than 10%) can't be produced using existing additive, so that the copper foil less than 6 microns cannot be in client normal use, tension and extend the low copper foil that will cause during making lithium battery electric core, occurs crumpling, part etc. has the problem of detrimental effects defect to battery.The invention belongs to cathode of lithium battery copper foil manufacturing fields.
Description
Technical field
The present invention provides a kind of copper foil manufacture additive and its application method, belongs to copper foil manufacturing technology field.
Background technique
Currently, using existing addition in the two-sided photoelectron copper foil manufacturing field of lithium-ion energy storage battery negative current collector
The copper thickness that agent is produced is at 6 microns or more, the main reason is that existing lithium battery electrolytic copper foil additive mainly uses
Be peptide mountain valley with clumps of trees and bamboo dyestuff, sodium sulfonate, due to the limitation of copper foil additive, it is (big that current technology means can't produce high tensile
In 55kg/mm2) and deep drawing quality (be greater than 10%) copper foil, this is allowed for cannot be normal in client less than 6 micron copper foils
Use, tension and extend it is low will cause copper foil and occur crumpling during making lithium battery electric core, part etc. has battery use
The defect of service life detrimental effects.
Summary of the invention
It is an object of the invention to: a kind of two-sided photoelectron copper foil manufacture of lithium-ion energy storage battery negative current collector is provided and is added
Add agent and its application method, to solve to produce high tensile (being greater than 55kg/mm2) and high extension using existing additive
Property (be greater than 10%) copper foil so that copper foil less than 6 microns cannot be in client normal use, tension and extending low can be made
At copper foil during making lithium battery electric core, occur crumpling, part etc. has detrimental effects defect to ask battery
Topic.
To solve the above problems, such a two-sided photoelectron copper foil system of lithium-ion energy storage battery negative current collector of proposed adoption
Additive, including polypropylene glycol, phytic acid, propane sulfonic acid sodium and hydroxymethyl cellulose are made, and mentioned component is by weight, each group
Divide content ratio successively are as follows: 10-15:2-10:1.5-5:120-150.
The application method of above-mentioned additive is as follows:
In use, the additive is added in copper sulfate electrolyte, it is maintained at each component content in copper sulfate electrolyte: copper
Ion concentration: 90-110g/L；Sulfate radical content: 40-60g/L；Chloride ion content :≤3ppm；Phytic acid: 2-10ppm；Poly- the third two
Alcohol: 10-15ppm；Propane sulfonic acid sodium: 1.5-5ppm；Hydroxymethyl cellulose；120-150ppm.
In aforementioned application method, takes polypropylene glycol 10-15g and propane sulfonic acid sodium 1.5-5g to dissolve in 500 milliliters of DI water, take
Phytic acid 2-10g and hydroxymethyl cellulose 120-150g dissolves in another 500 milliliters of DI water, and above-mentioned two portions of mixed liquors are existed respectively
Stirring is stood at room temperature, when adding into copper sulfate electrolyte, after being first mixed and stirred for above-mentioned two portions of mixed liquors uniformly, in terms of
Measuring device tool, is added dropwise by 70 milliliters per minute and enters CuSO4 solution.
Compared with prior art, it is able to produce using additive of the present invention and method and has provided high tensile and high extension
The copper foil of property solves lithium battery electric core easy part, the critical defects such as crumple in the production process, meanwhile, it is capable to substantially reduce
Copper thickness, thickness can reach 3-400 μ, and can improve unit volume battery capacity, and copper foil is thinner, inside unit volume battery core
Positive and negative pole material increase, thus achieved the purpose that improve battery capacity.
Specific embodiment
For make the present invention illustrate be more fully apparent from, the present invention will be described in further details below.
Embodiment:
A kind of two-sided photoelectron copper foil manufacture additive of lithium-ion energy storage battery negative current collector is present embodiments provided, including is planted
Acid, polypropylene glycol, propane sulfonic acid sodium and hydroxymethyl cellulose, and mentioned component is by weight, each component content ratio is successively are as follows:
6:12.5:3.25:135.
The application method of above-mentioned additive is as follows:
It takes polypropylene glycol 12.5g and propane sulfonic acid sodium 3.25g to dissolve in 500 milliliters of DI water, takes phytic acid 6g and hydroxymethyl cellulose
135g dissolves in another 500 milliliters of DI water, standing is stirred at room temperature in above-mentioned two portions of mixed liquors respectively, to copper sulfate bath
When being added in liquid, after first above-mentioned two portions of mixed liquors are mixed and stirred for uniformly, with measurement instrument, by 70 milliliters per minute be added dropwise into
Enter CuSO4 solution, remains at each component content in copper sulfate electrolyte: content of copper ion: 90-110g/L；Sulfate radical
Content: 40-60g/L；Chloride ion content :≤3ppm；Phytic acid: 2-10ppm；Polypropylene glycol: 10-15ppm；Propane sulfonic acid sodium:
1.5-5ppm；Hydroxymethyl cellulose；120-150ppm, the debugging that is switched on start that additive is added dropwise when producing, and shutdown then stops to add, often
One ton of production double light lithium electrolytic copper foils need 60 liters of additives.
The copper foil produced using the above method.After measured, physical property is as follows:
(i) surface density: 27-3600g/m2；
(ii) thickness: 3-400 μ；
(iii) room temperature tensile strength: 55-90kg/mm2；
(iv) room temperature elongation percentage > 10%；
The copper foil produced has high tensile and deep drawing quality, solves lithium battery electric core not part, no in the production process
It the critical defects such as crumples, while unit volume battery capacity can be improved again (copper foil is thinner, the positive and negative anodes inside unit volume battery core
Material increases, to achieve the purpose that improve battery capacity).
Claims (3)
1. the two-sided photoelectron copper foil of lithium-ion energy storage battery negative current collector manufactures additive, it is characterised in that: including poly- the third two
Alcohol, phytic acid, propane sulfonic acid sodium and hydroxymethyl cellulose, and mentioned component is by weight, each component content ratio is successively are as follows: 10-
15:2-10:1.5-5:120-150.
2. a kind of application method of additive described in claim 1, which is characterized in that the specific method is as follows: in use, will be described
Additive is added in copper sulfate electrolyte, is maintained at each component content in copper sulfate electrolyte: content of copper ion: 90-110g/
L；Sulfate radical content: 40-60g/L；Chloride ion content :≤3ppm；Phytic acid: 2-10ppm；Polypropylene glycol: 10-15ppm；Propane sulphur
Sour sodium: 1.5-5ppm；Hydroxymethyl cellulose；120-150ppm.
3. the application method of additive according to claim 2, it is characterised in that: take polypropylene glycol 10-15g and propane sulfonic acid
Sodium 1.5-5g dissolves in 500 milliliters of DI water, and phytic acid 2-10g and hydroxymethyl cellulose 120-150g is taken to dissolve in another 500 milliliters
In DI water, standing is stirred at room temperature in above-mentioned two portions of mixed liquors respectively, when adding into copper sulfate electrolyte, first by above-mentioned two
After part mixed liquor is mixed and stirred for uniformly, with measurement instrument, it is added dropwise by 70 milliliters per minute and enters CuSO4 solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079427.5A CN109267109B (en) | 2017-11-06 | 2017-11-06 | Additive for manufacturing double-sided photoelectron copper foil of negative current collector of lithium ion energy storage battery and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079427.5A CN109267109B (en) | 2017-11-06 | 2017-11-06 | Additive for manufacturing double-sided photoelectron copper foil of negative current collector of lithium ion energy storage battery and using method thereof |
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| Publication Number | Publication Date |
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| CN109267109A true CN109267109A (en) | 2019-01-25 |
| CN109267109B CN109267109B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711079427.5A Active CN109267109B (en) | 2017-11-06 | 2017-11-06 | Additive for manufacturing double-sided photoelectron copper foil of negative current collector of lithium ion energy storage battery and using method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943868A (en) * | 2019-04-19 | 2019-06-28 | 山东金盛源电子材料有限公司 | A kind of compound additive for the electrolytic copper foil being used to prepare high-tensile |
| CN111455414A (en) * | 2020-03-09 | 2020-07-28 | 深圳市惟华电子科技有限公司 | Additive for producing gradual change type electrolytic copper foil |
| CN111785975A (en) * | 2020-07-31 | 2020-10-16 | 蜂巢能源科技有限公司 | Current collector, preparation method and application thereof, cathode and lithium ion battery |
Citations (4)
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| CN102277597A (en) * | 2011-08-12 | 2011-12-14 | 合肥铜冠国轩铜材有限公司 | Preparation of double-sided photoelectrolytic copper foil for special lithium battery |
| CN103834972A (en) * | 2014-02-10 | 2014-06-04 | 东莞华威铜箔科技有限公司 | Additive for 4-micrometre carrier-free electrolytic copper foil, preparation method and application thereof |
| CN106086945A (en) * | 2016-06-22 | 2016-11-09 | 安徽铜冠铜箔有限公司 | The preparation method of a kind of ultra-thin type double face photoelectron Copper Foil and prepared Copper Foil |
| CN106480479A (en) * | 2016-10-12 | 2017-03-08 | 东莞华威铜箔科技有限公司 | The preparation method of flexible additive for electrolytic copper foil, product and its application |
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2017
- 2017-11-06 CN CN201711079427.5A patent/CN109267109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277597A (en) * | 2011-08-12 | 2011-12-14 | 合肥铜冠国轩铜材有限公司 | Preparation of double-sided photoelectrolytic copper foil for special lithium battery |
| CN103834972A (en) * | 2014-02-10 | 2014-06-04 | 东莞华威铜箔科技有限公司 | Additive for 4-micrometre carrier-free electrolytic copper foil, preparation method and application thereof |
| CN106086945A (en) * | 2016-06-22 | 2016-11-09 | 安徽铜冠铜箔有限公司 | The preparation method of a kind of ultra-thin type double face photoelectron Copper Foil and prepared Copper Foil |
| CN106480479A (en) * | 2016-10-12 | 2017-03-08 | 东莞华威铜箔科技有限公司 | The preparation method of flexible additive for electrolytic copper foil, product and its application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943868A (en) * | 2019-04-19 | 2019-06-28 | 山东金盛源电子材料有限公司 | A kind of compound additive for the electrolytic copper foil being used to prepare high-tensile |
| CN111455414A (en) * | 2020-03-09 | 2020-07-28 | 深圳市惟华电子科技有限公司 | Additive for producing gradual change type electrolytic copper foil |
| CN111785975A (en) * | 2020-07-31 | 2020-10-16 | 蜂巢能源科技有限公司 | Current collector, preparation method and application thereof, cathode and lithium ion battery |
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| CN109267109B (en) | 2021-04-06 |
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