CN110444728A - It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive - Google Patents
It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive Download PDFInfo
- Publication number
- CN110444728A CN110444728A CN201910564271.2A CN201910564271A CN110444728A CN 110444728 A CN110444728 A CN 110444728A CN 201910564271 A CN201910564271 A CN 201910564271A CN 110444728 A CN110444728 A CN 110444728A
- Authority
- CN
- China
- Prior art keywords
- carbon
- coated aluminum
- lithium
- aluminum foils
- mending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- 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
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- 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
Contain the carbon-coated aluminum foils for mending lithium additive the present invention provides a kind of comprising aluminium foil layer and pulp layer, pulp layer include following components in percentage by weight: mending lithium agent 15-25%；Binder 7-13%；Conductive carbon black 60-80%.The present invention also provides a kind of preparation methods containing the carbon-coated aluminum foils for mending lithium additive.The present invention can effectively make up the loss of battery capacity by mending the lithium ion discharged in lithium agent, and then it can help to improve the capacity of battery, and thus the thickness of positive plate made of aluminium foil can be obviously reduced compared to Chinese patent 201710010344.4.
Description
Technical field
The present invention relates to field of lithium ion battery, and in particular to a kind of to contain the carbon-coated aluminum foils and its system of mending lithium additive
Preparation Method.
Background technique
Conductive carbon black is coated in aluminium foil surface, the electric conductivity of electrode can be enhanced, improve positive electrode in the attachment on surface
Power, therefore the multiplying power and cycle performance of the sub- battery of lithium ion can be obviously improved.
Chinese patent 201710010344.4 provides one kind and contains Super P conductive layer, graphene conductive layer and mixing
The carbon-coated aluminum foils of conductive layer, electric conductivity are better than general carbon-coated aluminum foils.But conductive coating has certain thickness, conductive layer
Its more thickness of design are bigger, and thus the positive plate of electrode preparation is also thicker, for certain volume battery capacity also
It is lower.
Summary of the invention
In consideration of it, the present invention provides one kind can effectively improve containing for battery capacity under the premise of low thickness
Mend the carbon-coated aluminum foils and preparation method thereof of lithium additive.
Thus, on the one hand, the present invention provides it is a kind of contain mend lithium additive carbon-coated aluminum foils comprising aluminium foil layer and
Pulp layer, pulp layer include following components in percentage by weight:
Mend lithium agent 15-25%；
Binder 7-13%；
Conductive carbon black 60-80%.
Further, above-mentioned pulp layer includes following components in percentage by weight: mending lithium agent 17-23%；Binder 8-
12%；Conductive carbon black 65-75%.
Further, above-mentioned pulp layer includes following components in percentage by weight: mending lithium agent 18-22%；Binder 9-
11%；Conductive carbon black 67-73%.
Further, above-mentioned pulp layer includes following components in percentage by weight: mending lithium agent 19-21%；Binder 10-
11%；Conductive carbon black 68-72%.
Further, above-mentioned pulp layer includes following components in percentage by weight: mending lithium agent 20%；Binder 10%；It leads
Electrical carbon black 70%.
Further, above-mentioned benefit lithium agent is decomposable lithium-containing compound, and can decompose lithium-containing compound is Li02, Li202,
Li3N, Li2S, LiN3, Li2C204, Li2C305, Li2C406's is one or more.
Above-mentioned benefit lithium additive is decomposed into gas after de- lithium, does not have reversible capacity.
On the other hand, the present invention provides a kind of preparation methods containing the carbon-coated aluminum foils for mending lithium additive comprising with
Lower preparation step:
1) by aluminium foil progress oil removing and except the prune job of oxide；
2) each component of above-mentioned pulp layer is configured to slurry after mixing according to the proportion；
3) slurry is applied to the surface of aluminium foil, is then dried, is finally obtained containing the painting for mending lithium additive
Carbon aluminium foil.
Further, above-mentioned steps 1) in, aluminium foil passes sequentially through the cleaning treatment of ethyl alcohol, dilute hydrochloric acid, pure water.
Further, above-mentioned steps 3) in, drying course segmentation carries out, and first passes through 50 DEG C of prebakes 10-30 minutes, connects
Using 120 DEG C vacuum drying 1-4 hours.
Further, after drying the thickness control of slurry coating in 2-5um.
In a kind of carbon-coated aluminum foils containing benefit lithium additive provided by the present invention and preparation method thereof, by described
Proportion and method are prepared into containing the carbon-coated aluminum foils for mending lithium additive, can be effectively by mending the lithium ion discharged in lithium agent
The loss of battery capacity is made up, and then can help to improve the capacity of battery, and the thus thickness of positive plate made of aluminium foil
It can be obviously reduced compared to Chinese patent 201710010344.4.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are general for this field
Logical technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to this hair
Bright limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram containing the carbon-coated aluminum foils for mending lithium additive provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The exemplary embodiment opened, it being understood, however, that may be realized in various forms the disclosure without the implementation that should be illustrated here
Example is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the disclosure
Range is fully disclosed to those skilled in the art.
It is shown in Figure 1, it present embodiments provides a kind of containing the carbon-coated aluminum foils for mending lithium additive comprising aluminium foil layer 1
It is as shown in the table with the specific proportion of pulp layer 2, pulp layer 2.
| Embodiment | It mends lithium agent (%) | Binder (%) | Conductive carbon black (%) |
| 1 | 20 | 10 | 70 |
| 2 | 25 | 13 | 62 |
| 3 | 23 | 12 | 65 |
| 4 | 17 | 8 | 75 |
| 5 | 18 | 11 | 71 |
| 6 | 21 | 10 | 69 |
| 7 | 19 | 9 | 72 |
| 8 | 15 | 7 | 78 |
Proportion described in above-described embodiment 1-8 is currently preferred proportion, and within the above range other are specifically matched
Than will not enumerate.
The present embodiment additionally provides a kind of containing the carbon-coated aluminum foils for mending lithium additive, preparation method comprising following preparation
Step:
Aluminium foil: being passed sequentially through the processing of ethyl alcohol, dilute hydrochloric acid, pure water equal solvent by S1, removes grease stain, the oxygen of aluminium foil surface
The impurity such as compound obtain the pure aluminium foil in surface；
S2: according to above-mentioned set ratio, weighing the benefit lithium agent of certain mass, binder, conductive carbon black are uniformly mixed,
Uniform sizing material is configured to mixture solubilizer；
S3: slurry obtained in step S2 is applied to aluminium foil surface, is can be obtained after dry containing benefit lithium additive
Carbon-coated aluminum foils.
Benefit lithium agent therein is specially that lithium peroxide (Li202) etc. mends lithium agent；It can also be decomposable containing lithiumation conjunction
Object, can decompose lithium-containing compound is Li02, Li202, Li3N, Li2S, LiN3, Li2C204, Li2C305, one kind of Li2C406
Or it is a variety of, which is decomposed into gas after de- lithium, does not have reversible capacity.
Wherein, drying course segmentation carries out, and 50 DEG C of prebakes 10-30 minutes is first passed through, then using 120 DEG C of vacuum
Drying 1-4 hours, the thickness control of slurry coating is in 2-5um after drying.
It is a kind of containing in the carbon-coated aluminum foils and preparation method thereof for mending lithium additive provided by the present embodiment, by described
Proportion and method be prepared into containing the carbon-coated aluminum foils for mending lithium additive, by mending, the lithium ion that discharges can be effective in lithium agent
Ground makes up the loss of battery capacity, and then can help to improve the capacity of battery, and the thus thickness of positive plate made of aluminium foil
Degree can be obviously reduced compared to Chinese patent 201710010344.4.
Obviously, various changes and modifications can be made to the invention without departing from of the invention by those skilled in the art
Spirit and scope.In this way, if these modifications and changes of the present invention belongs to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of contain the carbon-coated aluminum foils for mending lithium additive, which is characterized in that including aluminium foil layer (1) and pulp layer (2), the slurry
The bed of material (2) includes following components in percentage by weight:
Mend lithium agent 15-25%；
Binder 7-13%；
Conductive carbon black 60-80%.
2. a kind of carbon-coated aluminum foils for containing benefit lithium additive according to claim 1, which is characterized in that the pulp layer
(2) include following components in percentage by weight: mending lithium agent 17-23%；Binder 8-12%；Conductive carbon black 65-75%.
3. a kind of carbon-coated aluminum foils for containing benefit lithium additive according to claim 1, which is characterized in that the pulp layer
(2) include following components in percentage by weight: mending lithium agent 18-22%；Binder 9-11%；Conductive carbon black 67-73%.
4. a kind of carbon-coated aluminum foils for containing benefit lithium additive according to claim 1, which is characterized in that the pulp layer
(2) include following components in percentage by weight: mending lithium agent 19-21%；Binder 10-11%；Conductive carbon black 68-72%.
5. a kind of carbon-coated aluminum foils for containing benefit lithium additive according to claim 1, which is characterized in that the pulp layer
(2) include following components in percentage by weight: mending lithium agent 20%；Binder 10%；Conductive carbon black 70%.
A kind of contain the carbon-coated aluminum foils for mending lithium additive 6. according to claim 1, which is characterized in that the benefit lithium agent is
Decomposable lithium-containing compound, the decomposable lithium-containing compound are Li02, Li202, Li3N, Li2S, LiN3, Li2C204,
Li2C305, Li2C406's is one or more.
7. a kind of preparation method containing the carbon-coated aluminum foils for mending lithium additive, which is characterized in that including following preparation step:
1) by aluminium foil progress oil removing and except the prune job of oxide；
2) each component of any pulp layer (2) of claim 1-6 is configured to slurry after mixing according to the proportion；
3) slurry is applied to the surface of the aluminium foil, is then dried, is finally obtained containing benefit lithium additive
Carbon-coated aluminum foils.
8. a kind of preparation method containing the carbon-coated aluminum foils for mending lithium additive according to claim 7, which is characterized in that institute
It states in step 1), the aluminium foil passes sequentially through the cleaning treatment of ethyl alcohol, dilute hydrochloric acid, pure water.
9. a kind of preparation method containing the carbon-coated aluminum foils for mending lithium additive according to claim 7, which is characterized in that institute
It states in step 3), drying course segmentation carries out, and 50 DEG C of prebakes 10-30 minutes is first passed through, then using 120 DEG C of vacuum dryings
1-4 hours.
10. a kind of preparation method containing the carbon-coated aluminum foils for mending lithium additive according to claim 9, which is characterized in that
The thickness control of slurry coating is in 2-5um after drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564271.2A CN110444728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564271.2A CN110444728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110444728A true CN110444728A (en) | 2019-11-12 |
Family
ID=68429067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910564271.2A Pending CN110444728A (en) | 2019-06-26 | 2019-06-26 | It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110444728A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613771A (en) * | 2020-06-29 | 2020-09-01 | 蜂巢能源科技有限公司 | Battery cathode and preparation method and application thereof |
| CN111725500A (en) * | 2020-06-22 | 2020-09-29 | 惠州亿纬锂能股份有限公司 | Positive plate and preparation method and application thereof |
| CN114597345A (en) * | 2022-03-15 | 2022-06-07 | 湖北亿纬动力有限公司 | Positive electrode with lithium supplementing function, preparation method thereof and lithium ion battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008293970A (en) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | Electrode for electrochemical element and method of manufacturing the same |
| CN103474723A (en) * | 2013-09-13 | 2013-12-25 | 深圳大学 | Lithium-air battery and preparation method thereof |
| CN105702913A (en) * | 2014-11-27 | 2016-06-22 | 比亚迪股份有限公司 | Positive electrode and preparation method therefor, and lithium secondary battery |
| CN109659533A (en) * | 2018-12-17 | 2019-04-19 | 苏州宇量电池有限公司 | A kind of based lithium-ion battery positive plate and preparation method thereof adding lithium peroxide |
| CN109686947A (en) * | 2018-12-25 | 2019-04-26 | 遵化市清吉电池科技有限公司 | With the lithium battery aluminium foil and its positive plate of lithium battery of mending lithium coating and lithium battery |
-
2019
- 2019-06-26 CN CN201910564271.2A patent/CN110444728A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008293970A (en) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | Electrode for electrochemical element and method of manufacturing the same |
| CN103474723A (en) * | 2013-09-13 | 2013-12-25 | 深圳大学 | Lithium-air battery and preparation method thereof |
| CN105702913A (en) * | 2014-11-27 | 2016-06-22 | 比亚迪股份有限公司 | Positive electrode and preparation method therefor, and lithium secondary battery |
| CN109659533A (en) * | 2018-12-17 | 2019-04-19 | 苏州宇量电池有限公司 | A kind of based lithium-ion battery positive plate and preparation method thereof adding lithium peroxide |
| CN109686947A (en) * | 2018-12-25 | 2019-04-26 | 遵化市清吉电池科技有限公司 | With the lithium battery aluminium foil and its positive plate of lithium battery of mending lithium coating and lithium battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725500A (en) * | 2020-06-22 | 2020-09-29 | 惠州亿纬锂能股份有限公司 | Positive plate and preparation method and application thereof |
| CN111725500B (en) * | 2020-06-22 | 2022-06-14 | 惠州亿纬锂能股份有限公司 | Positive plate and preparation method and application thereof |
| CN111613771A (en) * | 2020-06-29 | 2020-09-01 | 蜂巢能源科技有限公司 | Battery cathode and preparation method and application thereof |
| CN114597345A (en) * | 2022-03-15 | 2022-06-07 | 湖北亿纬动力有限公司 | Positive electrode with lithium supplementing function, preparation method thereof and lithium ion battery |
| CN114597345B (en) * | 2022-03-15 | 2024-01-02 | 湖北亿纬动力有限公司 | Positive electrode with lithium supplementing function, preparation method thereof and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110444728A (en) | It is a kind of to contain the carbon-coated aluminum foils and preparation method thereof for mending lithium additive | |
| CN107275574A (en) | Preparation method, lithium battery anode piece and the lithium battery of positive pole aqueous slurry | |
| CN102664103B (en) | Zinc cobaltate nanorod/foam nickel composite electrode, preparation method thereof and application thereof | |
| WO2016169289A1 (en) | Method for preparing lithium ion battery negative electrode slurry | |
| CN109390561B (en) | Lead negative plate of graphene lead-carbon battery and preparation method thereof | |
| DE202015104572U1 (en) | A hybrid supercapacitor | |
| CN102544515B (en) | Lithium iron phosphate power battery water-based cathode slurry and method for preparing cathode pole piece | |
| CN105355861B (en) | A kind of preparation method of patch type lead carbon battery electrode | |
| CN112310377B (en) | Battery negative electrode material and preparation method thereof | |
| CN101685853A (en) | Lithium ion battery preparation method | |
| CN109065857A (en) | A kind of processing method reducing high-nickel material surface residual alkali | |
| CN110517898A (en) | The preparation method of the graphene@CoAl-LDH combination electrode material of polyaniline-coated | |
| CN110048114A (en) | A kind of bivalve silicon carbon material and preparation method thereof | |
| CN110707284B (en) | Lithium ion battery cathode and preparation method thereof | |
| CN109065875A (en) | A kind of preparation method of the tertiary cathode material of Coated powder | |
| CN103441280B (en) | The method of lithium ion battery negative material prepared by the sisal carbon fiber of hydro-thermal activation | |
| CN101740759A (en) | Diachylon composition and preparation method and lead storage battery thereof | |
| CN104466182A (en) | Nitrogen-doped nanocarbon coated/oxidized modified graphite composite material and preparation method thereof | |
| CN113224294B (en) | Formula and application of positive electrode of double-ion battery | |
| CN110767465A (en) | Preparation method of supercapacitor based on two-dimensional niobium carbide nano composite material | |
| CN108766772B (en) | A kind of carbon coating titanium phosphate sodium and its preparation and application | |
| CN108766773A (en) | A kind of seaweed matrix activated carbon electrode material and preparation method for ultracapacitor | |
| CN104409696B (en) | Preparation method of lithium iron phosphate battery positive plate using water-based adhesive and carbon-coated conductive aluminum foil current collector | |
| CN105406029B (en) | The preparation method of anode slice of lithium ion battery or cathode pole piece | |
| CN107819108B (en) | Ternary electrode slurry, ternary electrode plate and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |