CN108221486B - Corrosion-resistant super electrolytic capacitor diaphragm paper and preparation method thereof - Google Patents
Corrosion-resistant super electrolytic capacitor diaphragm paper and preparation method thereof Download PDFInfo
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- CN108221486B CN108221486B CN201810006289.6A CN201810006289A CN108221486B CN 108221486 B CN108221486 B CN 108221486B CN 201810006289 A CN201810006289 A CN 201810006289A CN 108221486 B CN108221486 B CN 108221486B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 68
- 230000007797 corrosion Effects 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 229920000433 Lyocell Polymers 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 16
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000292 calcium oxide Substances 0.000 claims abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 238000010009 beating Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000004383 yellowing Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 12
- 230000035699 permeability Effects 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Classifications
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- 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
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
- D21F11/08—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type paper or board consisting of two or more layers
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/52—Separators
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Paper (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to corrosion-resistant super electrolytic capacitor diaphragm paper and a preparation method thereof. The super electrolytic capacitor diaphragm paper is composed of 50-95 wt% of tencel fibers and 5-50 wt% of metal oxide; the metal oxide is one or more of aluminum oxide, calcium oxide and magnesium oxide. According to the invention, the metal oxide particles are added into the tencel pulp to obtain the corrosion-resistant diaphragm paper of the super electrolytic capacitor, and the corrosion-resistant diaphragm paper has the advantages of good strength, good water absorption, low internal resistance and no yellowing after use.
Description
Technical Field
The invention relates to corrosion-resistant super electrolytic capacitor diaphragm paper and a preparation method thereof.
Background
Electrolytic capacitors are one of the important components in the electronics industry, and play a particular role in circuits such as rectifier circuits, power supply circuits and ac motor starting circuits, in addition to the functions of filtering, decoupling and signal coupling. The method is widely applied to the fields of automobile industry, security industry, medical electronics, computer televisions, electronic toys, industrial control and the like. The electrolytic capacitor paper is a lining material for adsorbing electrolyte in the electrolytic capacitor, and the performance of the electrolytic capacitor paper directly influences the quality of the electrolytic capacitor.
The super electrolytic capacitor is a novel power type electronic component which appears along with the rapid development of electronic technology and the breakthrough of material science in recent years. It is between common electrolytic capacitor and battery, has higher capacity than common electrolytic capacitor, can be as high as thousands farads; the discharge power is higher than that of a common battery, and the discharge current can reach thousands of amperes. In short, the capacitor has the characteristics of battery capacity, quick charge and discharge performance of the capacitor, safety, reliability, wide application range and the like. The super capacitor has great application value and market potential in the aspects of automobiles (particularly electric automobiles), electric power, railways, communication, national defense, consumer electronics and the like.
The electrolyte of the super electrolytic capacitor contains fluorine, and hydrogen fluoride is formed in the using process of the super electrolytic capacitor, so that paper of the super electrolytic capacitor is corroded, the paper of the super electrolytic capacitor is yellowed, and the use of the super electrolytic capacitor is adversely affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the first object of the invention is to provide the corrosion-resistant diaphragm paper for the super electrolytic capacitor, which has the advantages of low compactness, good strength, small and uniform pore diameter, good corrosion resistance and suitability for the super capacitor. The second purpose of the invention is to provide a preparation method of the diaphragm paper.
In order to achieve the first object, the invention adopts the following technical scheme:
the super electrolytic capacitor diaphragm paper is composed of 50-95 wt% of tencel fibers and 5-50 wt% of metal oxide; the metal oxide is one or more of aluminum oxide, calcium oxide and magnesium oxide.
Preferably, the metal oxide is in one or both of a particle form and a fiber form.
Preferably, the tencel fiber accounts for 70-95% by weight, and the metal oxide accounts for 5-30% by weight.
The inorganic material in the formula is less than 5%, and the inorganic material is less remained in the production process, so that the corrosion resistance of the paper of the super electrolytic capacitor is poor; the inorganic material is higher than 50 percent, and the strength of the paper is too low to meet the strength requirement in the assembly process of the super electrolytic capacitor.
In order to achieve the second object, the invention adopts the following technical scheme:
1) adding water into 50-95 parts of tencel pulp to prepare raw pulp with the mass concentration of 2.5-5.0%;
2) the obtained tencel raw pulp is processed by a disc grinder or a beater to obtain pulp A with the mass concentration of 3.0-5.0%, the beating degree of 60-98 DEG SR and the wet weight of 5.0-20 g;
3) adding 5-50 parts of metal oxide particles into a stirring barrel, uniformly dispersing by ultrasonic waves, filtering by using a 200-mesh screen, and adding the filtered metal oxide particles into the slurry A to obtain slurry B;
4) and (3) carrying out composite forming on the slurry B through a double-rotary screen, and squeezing, drying, curling and slitting after forming to obtain the corrosion-resistant diaphragm paper for the super electrolytic capacitor.
Preferably, the pulping mode comprises one of viscous pulping of a Holland type pulping machine and viscous refining of single or double disc grinding.
By adopting the technical scheme, the corrosion-resistant diaphragm paper for the super electrolytic capacitor is obtained by adding the metal oxide particles into the tencel pulp, and has the advantages of good strength, good water absorption, low internal resistance and no yellowing after use.
Drawings
FIG. 1 is a comparison of the colors of supercapacitor separator paper after the test of the present invention is completed.
Detailed Description
Reference example 1
The sizing degree of the tencel fiber is 85 DEG SR, a rotary screen paper machine is adopted for papermaking, indexes such as tightness, thickness, tensile strength, air permeability and the like of paper sheets are detected by a papermaking process according to a conventional process, indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor are made, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 1
The tencel fiber beating degree is 85 DEG SR, 0.8 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 95:5, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 2
The tencel fiber beating degree is 85 DEG SR, 0.8 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 90:10, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 3
The tencel fiber beating degree is 85 DEG SR, 0.8 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 85:15, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 4
The tencel fiber beating degree is 85 DEG SR, 0.8 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 80:20, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 5
The tencel fiber beating degree is 90 DEG SR, 0.5 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 90:10, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 6
The tencel fiber beating degree is 90 DEG SR, 0.5 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 80:20, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 7
The tencel fiber beating degree is 90 DEG SR, 0.5 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 75:25, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
Example 8
The tencel fiber beating degree is 90 DEG SR, 0.5 mu m superfine alumina particles are manufactured by adopting a rotary screen paper machine according to the mass ratio of 70:30, the paper manufacturing process is used for manufacturing indexes such as capacity, leakage current, internal resistance and the like of the detection capacitor of the super capacitor according to the conventional process and indexes such as paper sheet detection tightness, thickness, tensile strength, air permeability and the like, and the color of the diaphragm paper of the super capacitor is observed after the indexes of the super capacitor are detected.
The test data for each of the above examples is as follows:
Claims (5)
1. the corrosion-resistant diaphragm paper for the super electrolytic capacitor is characterized by comprising 50-95 wt% of tencel fibers and 5-50 wt% of metal oxide; the metal oxide is one or more of aluminum oxide, calcium oxide and magnesium oxide.
2. The corrosion-resistant supercapacitor separator paper according to claim 1, wherein the metal oxide is in one or both of a particle form and a fiber form.
3. The corrosion-resistant super electrolytic capacitor separator paper according to claim 1, wherein the tencel fiber accounts for 70-95 wt% and the metal oxide accounts for 5-30 wt%.
4. A method of making the separator paper of any of claims 1 to 3, comprising the steps of:
1) adding water into 50-95 parts of tencel pulp to prepare raw pulp with the mass concentration of 2.5-5.0%;
2) the obtained tencel raw pulp is processed by a disc grinder or a beater to obtain pulp A with the mass concentration of 3.0-5.0%, the beating degree of 60-98 DEG SR and the wet weight of 5.0-20 g;
3) adding 5-50 parts of metal oxide particles into a stirring barrel, uniformly dispersing by ultrasonic waves, filtering by using a 200-mesh screen, and adding the filtered metal oxide particles into the slurry A to obtain slurry B;
4) and (3) carrying out composite forming on the slurry B through a double-rotary screen, and squeezing, drying, curling and slitting after forming to obtain the corrosion-resistant diaphragm paper for the super electrolytic capacitor.
5. The method as claimed in claim 4, wherein the beater in the step 2) is beaten in a viscous state by a Holland beater; the disc mill adopts one of single disc or double disc milling and sticky pulp milling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006289.6A CN108221486B (en) | 2018-01-04 | 2018-01-04 | Corrosion-resistant super electrolytic capacitor diaphragm paper and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006289.6A CN108221486B (en) | 2018-01-04 | 2018-01-04 | Corrosion-resistant super electrolytic capacitor diaphragm paper and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108221486A CN108221486A (en) | 2018-06-29 |
| CN108221486B true CN108221486B (en) | 2020-12-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056403A (en) * | 2018-09-10 | 2018-12-21 | 浙江凯恩特种纸业有限公司 | A kind of high intensity super electrolytic capacitor diaphragm paper and preparation method thereof |
| CN113764821A (en) * | 2021-09-08 | 2021-12-07 | 山东工业陶瓷研究设计院有限公司 | Boron nitride fiber diaphragm, diaphragm preparation method and lithium thermal battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696558A (en) * | 2009-10-23 | 2010-04-21 | 浙江凯恩特种材料股份有限公司 | Super electrolytic capacitor paper |
| CN102728144A (en) * | 2012-06-27 | 2012-10-17 | 吕凯 | Battery capacitor membrane filtration material prepared by using wet papermaking forming process, and preparation method thereof |
| CN105474339A (en) * | 2013-08-22 | 2016-04-06 | 康宁股份有限公司 | Separator based on fibrous ceramic material for ultracapacitors, EDLC, hybrid capacitor, fuel cell and battery |
| CN105990038A (en) * | 2016-01-27 | 2016-10-05 | 安徽旭峰电容器有限公司 | Safe environment-friendly and simple-preparation supercapacitor separator material |
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2018
- 2018-01-04 CN CN201810006289.6A patent/CN108221486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696558A (en) * | 2009-10-23 | 2010-04-21 | 浙江凯恩特种材料股份有限公司 | Super electrolytic capacitor paper |
| CN102728144A (en) * | 2012-06-27 | 2012-10-17 | 吕凯 | Battery capacitor membrane filtration material prepared by using wet papermaking forming process, and preparation method thereof |
| CN105474339A (en) * | 2013-08-22 | 2016-04-06 | 康宁股份有限公司 | Separator based on fibrous ceramic material for ultracapacitors, EDLC, hybrid capacitor, fuel cell and battery |
| CN105990038A (en) * | 2016-01-27 | 2016-10-05 | 安徽旭峰电容器有限公司 | Safe environment-friendly and simple-preparation supercapacitor separator material |
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