CN115387160A - Super capacitor paper containing nanocellulose and preparation method thereof - Google Patents
Super capacitor paper containing nanocellulose and preparation method thereof Download PDFInfo
- Publication number
- CN115387160A CN115387160A CN202110563499.7A CN202110563499A CN115387160A CN 115387160 A CN115387160 A CN 115387160A CN 202110563499 A CN202110563499 A CN 202110563499A CN 115387160 A CN115387160 A CN 115387160A
- Authority
- CN
- China
- Prior art keywords
- cellulose
- paper
- supercapacitor
- nano
- nanocellulose
- 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
- 229920001046 Nanocellulose Polymers 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 title claims abstract description 18
- 229920003043 Cellulose fiber Polymers 0.000 claims abstract description 32
- 229920002678 cellulose Polymers 0.000 claims abstract description 24
- 239000001913 cellulose Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 229920002749 Bacterial cellulose Polymers 0.000 claims description 4
- 239000005016 bacterial cellulose Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000002159 nanocrystal Substances 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000010009 beating Methods 0.000 description 8
- 238000003828 vacuum filtration Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/18—Highly hydrated, swollen or fibrillatable fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
- H01B3/52—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials wood; paper; press board
-
- 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
- Y02E60/13—Energy storage using capacitors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Paper (AREA)
Abstract
The invention provides super capacitor paper containing nanocellulose and a preparation method thereof, and belongs to the technical field of electrical paper. The preparation raw materials of the supercapacitor paper are cellulose fiber and nano-cellulose, and the cellulose fiber comprises the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano-cellulose. According to the invention, the nano-cellulose is added into the super capacitor paper, so that the strength of the super capacitor paper can be obviously enhanced.
Description
Technical Field
The invention relates to the technical field of electrical paper, in particular to super capacitor paper containing nanocellulose and a preparation method thereof.
Background
In China, the super capacitor is applied in a plurality of fields at present, the market demand is rapidly increasing, and the super capacitor has a wide market prospect. The super capacitor paper has very strict requirements as a key dielectric material of a super capacitor.
The tensile strength is an important strength index of the supercapacitor paper, and firstly, the supercapacitor can generate certain tensile force on the supercapacitor paper during winding preparation; secondly, the activated carbon particles on the surfaces of the two electrodes of the super capacitor fall off and move to a certain extent in the using process, and certain external force is generated on the super capacitor paper. Based on this, the supercapacitor paper purchasers are more inclined to purchase high-strength supercapacitor paper.
Therefore, the preparation of high-strength supercapacitor paper becomes a research hotspot and a key point.
Disclosure of Invention
In view of this, the present invention aims to provide a supercapacitor paper containing nanocellulose and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides super capacitor paper which is prepared from the following raw materials in parts by weight:
the preparation raw materials comprise the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano-cellulose.
Preferably, the nanocellulose is bacterial cellulose, cellulose nanocrystals or microfibrillated cellulose.
Preferably, the diameter of the nanocellulose is 20 to 500nm.
Preferably, the cellulose fibers have a length of 1 to 10mm and an average fiber width of 20 to 40 μm.
Preferably, the degree of beating of the cellulose fibres is 60 to 95 ° SR.
Preferably, the paper basis weight of the supercapacitor paper is 13.0-30.0 g/m 2 The thickness is 20-80 μm.
The invention also provides a preparation method of the supercapacitor paper, and the adding mode of the nanocellulose is adding the nanocellulose into the pulp or adding the nanocellulose in a surface treatment mode.
Preferably, the process of adding nanocellulose into the pulp comprises the following steps: mixing and defibering the nanocellulose and the pulped cellulose fiber raw material, and then papermaking to obtain the supercapacitor paper; the process for adding the nano-cellulose in the surface treatment mode comprises the following steps: pulping and defibering the cellulose fiber raw material, and making paper to obtain primary paper; and (3) coating the primary paper with nanocellulose in a surface dipping, coating or sizing manner, and then drying for the second time to obtain the supercapacitor paper.
The invention provides super capacitor paper which is prepared from the following raw materials in parts by weight: the preparation raw materials comprise the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano-cellulose; according to the invention, the nano-cellulose is added as a fiber raw material, so that the strength of the super capacitor paper can be obviously improved.
The invention also provides a preparation method of the supercapacitor paper, which is simple to operate, does not need an additional device and is low in cost.
Detailed Description
The invention provides supercapacitor paper containing nanocellulose, which is prepared from the following raw materials:
the preparation raw materials comprise the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano cellulose;
in the present invention, unless otherwise specified, the starting materials used in the present invention are preferably commercially available products.
In the invention, the basis weight of the super capacitor paper is 13.0-30.0 g/m 2 The thickness is 20-80 μm.
The preparation raw materials for preparing the supercapacitor paper provided by the invention are cellulose fiber and nano cellulose; the preparation raw materials comprise the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano-cellulose.
In the present invention, the weight part of the cellulose fiber is specifically preferably 80 parts, 85 parts, 90 parts or 95 parts; the length of the cellulose fiber is preferably 1-10 mm; the cellulose fibers are preferably commercially available premium cellulose fibers.
In the invention, the weight part of the nano-cellulose is preferably 5 parts, 10 parts, 15 parts or 20 parts; the nanocellulose is preferably Bacterial Cellulose (BC), cellulose Nanocrystals (CNC) or microfibrillated cellulose (MFC); the diameter of the nanocellulose is preferably 20 to 500nm. In the invention, the use of the nanocellulose can obviously improve the strength of the supercapacitor paper.
In the present invention, the degree of beating of the cellulose fibers is preferably 60 to 95 ° SR, more preferably 75 ° SR or 80 ° SR.
The invention also provides a preparation method of the supercapacitor paper in the technical scheme, and the adding mode of the nanocellulose is to add the nanocellulose into pulp or add the nanocellulose in a surface treatment mode.
In the present invention, the process of adding nanocellulose into the pulp preferably comprises the following steps: and mixing and defibering the nanocellulose and the pulped cellulose fiber, and then papermaking to obtain the supercapacitor paper. In the present invention, the parameters of the untwining preferably include: the rotating speed is 3000 +/-5 r/min; the fluffing is preferably carried out in a standard slurry fluffer. In the present invention, the parameters for papermaking preferably include: the papermaking ration is 13.0-30.0 g/m 2 The concentration of the paper-making on-wire is 0.13-0.18%, the wet pressing pressure is 200-500 kPa, the pressure maintaining time is 30s, and the drying temperature is 104-106 ℃. In the present invention, the papermaking is preferably performed in a vacuum filtration wet papermaking machine.
In the present invention, the surface treatment method of adding nanocellulose preferably comprises the following steps: after pulping and defibering the cellulose fiber raw material, papermaking to obtain primary paper; and (3) coating the nanocellulose on the primary paper by means of surface impregnation, coating or sizing, and then drying for the second time to obtain the supercapacitor paper. In the present invention, the parameters of the defibering and the papermaking are preferably consistent with the technical scheme, and are not described herein again. The present invention does not specifically limit the manner in which the nanocellulose is surface-impregnated, coated or sized, as long as nanocellulose can be coated onto the primary paper.
The preparation method provided by the invention is simple to operate, does not need additional arrangement and is low in cost.
The super capacitor paper containing nanocellulose and the preparation method thereof provided by the invention are described in detail below with reference to the examples, but the invention is not to be construed as being limited by the scope of the invention.
Comparative example 1
Defibering cellulose fibers with the beating degree of 80 DEG SR, and papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength was 0.754KN/m.
Comparative example 2
Defibering cellulose fibers with the beating degree of 75 DEG SR, and then papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength was 0.563KN/m.
Example 1
Mixing 5 parts of nano-cellulose with the diameter of 20-40nm and 95 parts of cellulose fiber raw material with the beating degree of 80 DEG SR, defibering, and papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength is 0.819KN/m, and the strength is obviously improved compared with that of the comparative example 1.
Example 2
Mixing 10 parts of nano-cellulose with the diameter of 20-40nm and 90 parts of cellulose fiber raw material with the beating degree of 80 DEG SR, fluffing, and papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength is 0.900KN/m, and the strength is obviously improved compared with that of comparative example 1.
Example 3
Mixing and fluffing 10 parts of nano cellulose with the diameter of 20-40nm and 90 parts of cellulose fiber raw material with the beating degree of 75 DEG SR, and papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength is 0.819KN/m, and the strength is obviously improved compared with that of comparative example 2.
Example 4
Mixing 3 parts of nano-cellulose with the diameter of 20-40nm and 97 parts of cellulose fiber raw material with the beating degree of 75 DEG SR, fluffing, and papermaking in a vacuum filtration wet papermaking device to obtain the supercapacitor paper, wherein the gram weight of the paper is 20g/m 2 The tensile strength was 0.678KN/m, which is significantly improved as compared with comparative example 2.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.
Claims (8)
1. The super capacitor paper containing the nano-cellulose is characterized in that the preparation raw materials are cellulose fiber and nano-cellulose: the preparation raw materials comprise the following components in parts by weight: 70-99.99 parts of cellulose fiber and 0.01-30 parts of nano-cellulose.
2. The supercapacitor paper according to claim 1, wherein the nanocellulose is bacterial cellulose, cellulose nanocrystals or microfibrillated cellulose.
3. The supercapacitor paper according to claim 2, wherein the nanocellulose has a diameter of from 20 to 500nm.
4. Supercapacitor paper according to claim 1, characterised in that the cellulose fibres have a length of 1-10 mm and an average fibre width of 20-40 μm.
5. The supercapacitor paper according to claim 1, wherein the cellulose fibers have a freeness of 60 to 95 ° SR.
6. The supercapacitor paper according to claims 1 to 5, wherein the supercapacitor paper has a basis weight of 13.0 to 30.0g/m 2 The thickness is 20-80 μm.
7. The method for preparing the supercapacitor paper according to any one of claims 1 to 7, wherein the nanocellulose is added in a manner of adding the nanocellulose in a slurry or in a manner of surface treatment.
8. The method for preparing the nano-crystalline cellulose fiber slurry, according to claim 7, is characterized in that the process of adding nano-crystalline cellulose into the slurry comprises the following steps: mixing and defibering nano-cellulose and the pulped cellulose fiber raw material, and then papermaking to obtain the supercapacitor paper; the surface treatment method for adding the nano-cellulose comprises the following steps: pulping and defibering a cellulose fiber raw material, and then papermaking to obtain primary paper; and (3) coating the primary paper with nanocellulose in a surface dipping, coating or sizing manner, and then drying for the second time to obtain the supercapacitor paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563499.7A CN115387160A (en) | 2021-05-24 | 2021-05-24 | Super capacitor paper containing nanocellulose and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563499.7A CN115387160A (en) | 2021-05-24 | 2021-05-24 | Super capacitor paper containing nanocellulose and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115387160A true CN115387160A (en) | 2022-11-25 |
Family
ID=84113672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110563499.7A Pending CN115387160A (en) | 2021-05-24 | 2021-05-24 | Super capacitor paper containing nanocellulose and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115387160A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172419A (en) * | 2018-01-04 | 2018-06-15 | 浙江凯恩特种材料股份有限公司 | A kind of enhanced super electrolytic capacitor diaphragm paper and preparation method thereof |
| CN108221485A (en) * | 2018-01-04 | 2018-06-29 | 浙江凯恩特种材料股份有限公司 | A kind of pressure resistant type electrolytic capacitor paper and preparation method thereof |
| CN109594426A (en) * | 2018-12-04 | 2019-04-09 | 株洲时代新材料科技股份有限公司 | Electrolytic capacitor paper |
| JP2019183372A (en) * | 2018-03-30 | 2019-10-24 | 日本製紙株式会社 | Method for producing paper or paperboard |
| AU2020101120A4 (en) * | 2020-06-24 | 2020-07-30 | Chen, Wanping MR | Nanocelluloses strengthened paper-based separator for supercapacitors |
-
2021
- 2021-05-24 CN CN202110563499.7A patent/CN115387160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172419A (en) * | 2018-01-04 | 2018-06-15 | 浙江凯恩特种材料股份有限公司 | A kind of enhanced super electrolytic capacitor diaphragm paper and preparation method thereof |
| CN108221485A (en) * | 2018-01-04 | 2018-06-29 | 浙江凯恩特种材料股份有限公司 | A kind of pressure resistant type electrolytic capacitor paper and preparation method thereof |
| JP2019183372A (en) * | 2018-03-30 | 2019-10-24 | 日本製紙株式会社 | Method for producing paper or paperboard |
| CN109594426A (en) * | 2018-12-04 | 2019-04-09 | 株洲时代新材料科技股份有限公司 | Electrolytic capacitor paper |
| AU2020101120A4 (en) * | 2020-06-24 | 2020-07-30 | Chen, Wanping MR | Nanocelluloses strengthened paper-based separator for supercapacitors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102312070B1 (en) | A dry mixed re-dispersible cellulose filament/carrier product and the method of making the same | |
| JP6886457B2 (en) | A method for producing a film with good barrier properties | |
| CA2801369C (en) | Cationic microfibrillated plant fibre and manufacturing method for same | |
| FI126513B (en) | Method for improving strength and retention and paper product | |
| JP2024060033A (en) | Sheet | |
| FI127111B (en) | Process and intermediate for producing highly processed or microfibrillated cellulose | |
| CN102812182A (en) | Method for improving the properties of a paper product and forming an additive component and the corresponding paper product and additive component and use of the additive component | |
| US3069311A (en) | Paper manufacture | |
| CN111479959A (en) | Filaments of microfibrillated cellulose | |
| Kim et al. | Cellulose nanofibril grades’ effect on the strength and drainability of security paper | |
| CN115387160A (en) | Super capacitor paper containing nanocellulose and preparation method thereof | |
| JP5925995B2 (en) | Paper containing fluffed pulp | |
| Lee et al. | Manufacture and Characterization of Cationic Nanofibrillated Cellulose from Cotton Pulp. | |
| WO2019189611A1 (en) | Paper containing microfibril cellulose fiber | |
| JP7119609B2 (en) | Sheet and sheet manufacturing method | |
| Seo et al. | Effects of cosolvent ratio on fiber characteristics of SwBKP during alkali-cosolvent swelling system | |
| Park et al. | Effects of grinding-homogenizing treatments on the characteristics of MFC | |
| JP2023503197A (en) | Method for producing sheet containing chemically modified cellulose fibers | |
| JP2020172738A (en) | Sheet and manufacturing method for sheet | |
| WO2021033155A1 (en) | Method for producing fibrous material, cellulose-containing material, and acid treatment agent for treating fiber raw material | |
| Park et al. | Combined enzymatic pretreatment of pulp for production of CNF | |
| JP7335929B2 (en) | METHOD FOR MANUFACTURE OF CELLULOSE FIBER CONTAINING MATERIAL, METHOD FOR MANUFACTURING REACTED CELLULOSE FIBERS, AND METHOD FOR MANUFACTURING REACTED FINE FIBERS | |
| JP7429212B2 (en) | Method for producing carbamate cellulose fiber | |
| JP6741106B1 (en) | Sheet and method for manufacturing sheet | |
| JP6264735B2 (en) | Adhesive tape base paper |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20221125 |
|
| WD01 | Invention patent application deemed withdrawn after publication |