CN107731532A - A kind of electrolytic capacitor diaphragm paper - Google Patents
A kind of electrolytic capacitor diaphragm paper Download PDFInfo
- Publication number
- CN107731532A CN107731532A CN201711149408.5A CN201711149408A CN107731532A CN 107731532 A CN107731532 A CN 107731532A CN 201711149408 A CN201711149408 A CN 201711149408A CN 107731532 A CN107731532 A CN 107731532A
- Authority
- CN
- China
- Prior art keywords
- parts
- electrolytic capacitor
- diaphragm paper
- pressure
- plastic grain
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002033 PVDF binder Substances 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910002113 barium titanate Inorganic materials 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims description 20
- 239000004033 plastic Substances 0.000 claims description 20
- 229920001577 copolymer Polymers 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 210000002469 basement membrane Anatomy 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 210000004379 membrane Anatomy 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 108010023321 Factor VII Proteins 0.000 description 1
- 108010054218 Factor VIII Proteins 0.000 description 1
- 102000001690 Factor VIII Human genes 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/02—Diaphragms; Separators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of electrolytic capacitor diaphragm paper, by following raw material：20 35 parts of PVDF resins, 70 parts of TPU55,13 parts of alchlor, 0.03 0.05 parts of barium titanate, 0.02 0.06 parts of acrylic acid, 0.01 0.02 parts of polyethylene are after major ingredient cross-linked polymeric, injection are extruded into basement membrane, supporting layer is applied in membrane surface, applies porous layer thereon；The method of the present invention is practical simple, easily operated realization, is exchanged with radiation grafting, base-material is obtained, the discharge and recharge number of diaphragm paper is improved and recycles the time, strengthened using composite coated film and protect liquid measure and rate of liquid aspiration, and heat-resisting quantity is good, contraction is small, has a good application prospect.
Description
Technical field
The present invention relates to special material, capacitor technology field, more particularly to a kind of electrolytic capacitor diaphragm paper.
Background technology
Electrolytic capacitor refers on the surface of the valve metals such as aluminium, tantalum, niobium, titanium using anodizing generation a thin layer oxidation
Thing is as dielectric, the capacitor formed using electrolyte as negative electrode.The anode generally use etched foil of electrolytic capacitor or
Person's powder sintering block structure, it is very high that it is mainly characterized by the capacity of unit area, there is other classes in terms of small-size high-capacity
The unrivaled advantage of capacitor.
In the internal structure of electrolytic capacitor, electrolytic paper is that diaphragm paper is cylindric around being rolled into by the paper tinsel of anode and cathode, is referred to as
" capacitor unit ", but dielectric now is same in diaphragm paper and oxide serves as；This unit has the capacitance of very little；
After electrolyte is injected, the paper tinsel volume of anode and cathode just has electricity contact, and dielectric is just individually played the part of by the oxide of paper tinsel volume layer, and
Electrolyte is exactly the negative electrode of electric capacity；And in current electrolytic capacitor, it be able to can be often lost there is electrolyte totally, Wu Fashi
Existing its function, conductance poor performance etc..
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of electrolytic capacitor diaphragm paper.
The technical solution adopted in the present invention is：
A kind of electrolytic capacitor diaphragm paper, by the following raw material based on its parts by weight：PVDF resin 20-35 parts, TPU55-70 parts,
Alchlor 1-3 parts, barium titanate 0.03-0.05 parts, acrylic acid 0.02-0.06 parts, polyethylene 0.01-0.02 parts.
A kind of preparation method of electrolytic capacitor diaphragm paper, preparation process include as follows：
(1) by PVDF resins and bis- kinds of materials of TPU be mixed it is even after through sealing high temperature 260-280 DEG C of heating, high pressure 1.5-1.8MP
Pressure homogeneous, alchlor is added after being granulated into plastic grain, then heated 230-240 DEG C by comminutor, make its mixing equal
It is even, plastic grain is granulated into by comminutor 1.2-1.5MP pressure, the absolute ethyl alcohol then contained by sealing anaerobic container
Dipping bath 1-2min, obtain clear plastic particle；
(2) the obtained plastic grain of step (1) processing is added into injection machine to heat after 175-190 DEG C of heat melts, extruded
Pressure is the 1.1-1.3MP film for being squeezed into 0.035 ± 0.001mm；
(3) barium titanate, acroleic acid polymerization are obtained into copolymer；
(4), will after shake spraying film surface made from step (2) after hot 180-200 DEG C of the heating of polyethylene particle is melted
The copolymer of step (3) is applied to its surface, through shrinking 1h, shrinkage factor 5-8% in 150-160 DEG C of dry environment.
Beneficial effects of the present invention：It is practical simple, easily operated realization, exchanged with radiation grafting, obtain base-material, improve every
The discharge and recharge number of film paper and recycling time, strengthened using composite coated film and protect liquid measure and rate of liquid aspiration, and heat-resisting quantity
Good, contraction is small, has a good application prospect.
Embodiment
Embodiment 1
A kind of electrolytic capacitor diaphragm paper, by the following raw material based on its parts by weight：20 parts of PVDF resins, TPU55 parts, tri-chlorination
1 part of aluminium, 0.03 part of barium titanate, 0.02 part of acrylic acid, 0.01 part of polyethylene.
A kind of preparation method of electrolytic capacitor diaphragm paper, preparation process include as follows：
(1) by bis- kinds of materials of PVDF resins and TPU be mixed it is even after through seal the heating of 260 DEG C of high temperature, high pressure 1.5MP pressure it is equal
Matter, alchlor is added after being granulated into plastic grain, then heated 230 DEG C by comminutor, make it well mixed, pass through granulation
Machine 1.2MP pressure is granulated into plastic grain, the absolute ethyl alcohol dipping bath 1min then contained by sealing anaerobic container, obtains pure
Net plastic grain；
(2) the obtained plastic grain of step (1) processing is added into injection machine to heat after 175 DEG C of heat melts, carries out extrusion pressure
For the 1.1MP film for being squeezed into 0.034mm；
(3) barium titanate, acroleic acid polymerization are obtained into copolymer；
(4) after hot 180 DEG C of the heating of polyethylene particle is melted, after shake spraying film surface made from step (2), by step
(3) copolymer is applied to its surface, through shrinking 1h, shrinkage factor 5-8% in 150 DEG C of dry environments, produce 0.0352mm every
Film paper.
Embodiment 2
A kind of electrolytic capacitor diaphragm paper, by the following raw material based on its parts by weight：27 parts of PVDF resins, TPU63 parts, tri-chlorination
2 parts of aluminium, 0.04 part of barium titanate, 0.04 part of acrylic acid, 0.015 part of polyethylene.
A kind of preparation method of electrolytic capacitor diaphragm paper, preparation process include as follows：
(1) by bis- kinds of materials of PVDF resins and TPU be mixed it is even after through seal the heating of 270 DEG C of high temperature, high pressure 1.65MP pressure it is equal
Matter, alchlor is added after being granulated into plastic grain, then heated 235 DEG C by comminutor, make it well mixed, pass through granulation
Machine 1.35MP pressure is granulated into plastic grain, the absolute ethyl alcohol dipping bath 1.5min then contained by sealing anaerobic container, obtains
To clear plastic particle；
(2) the obtained plastic grain of step (1) processing is added into injection machine to heat after 183 DEG C of heat melts, carries out extrusion pressure
For the 1.2MP film for being squeezed into 0.035mm；
(3) barium titanate, acroleic acid polymerization are obtained into copolymer；
(4) after hot 190 DEG C of the heating of polyethylene particle is melted, after shake spraying film surface made from step (2), by step
(3) copolymer is applied to its surface, through shrinking 1h in 155 DEG C of dry environments, shrinkage factor 7%, produces 0.0355mm barrier film
Paper.
Embodiment 3
A kind of electrolytic capacitor diaphragm paper, by the following raw material based on its parts by weight：35 parts of PVDF resins, TPU70 parts, tri-chlorination
3 parts of aluminium, 0.05 part of barium titanate, 0.06 part of acrylic acid, 0.02 part of polyethylene.
A kind of preparation method of electrolytic capacitor diaphragm paper, preparation process include as follows：
(1) by bis- kinds of materials of PVDF resins and TPU be mixed it is even after through seal the heating of 280 DEG C of high temperature, high pressure 1.8MP pressure it is equal
Matter, alchlor is added after being granulated into plastic grain, then heated 240 DEG C by comminutor, make it well mixed, pass through granulation
Machine 1.5MP pressure is granulated into plastic grain, the absolute ethyl alcohol dipping bath 2min then contained by sealing anaerobic container, obtains pure
Net plastic grain；
(2) the obtained plastic grain of step (1) processing is added into injection machine to heat after 190 DEG C of heat melts, carries out extrusion pressure
For the 1.3MP film for being squeezed into 0.036mm；
(3) barium titanate, acroleic acid polymerization are obtained into copolymer；
(4) after hot 200 DEG C of the heating of polyethylene particle is melted, after shake spraying film surface made from step (2), by step
(3) copolymer is applied to its surface, through shrinking 1h in 160 DEG C of dry environments, shrinkage factor 8%, produces 0.0362mm barrier film
Paper.
Electrolytic capacitor is produced in routine techniques and same procedure with the barrier film of the present invention, obtained after tested as drawn a conclusion：
| The discharge and recharge time（s） | Charge and discharge efficiency（%) | Cycle life（It is secondary） | Operating temperature（℃） | |
| Embodiment 1 | 35 | 91.2 | 140000 | -15~81 |
| Embodiment 2 | 33 | 94.3 | 135800 | -17~82 |
| Embodiment 3 | 36 | 92.9 | 138900 | -20~81 |
It is practical simple, easily operated realization, exchanged with radiation grafting, obtain base-material, improved the discharge and recharge number of diaphragm paper and follow
Ring usage time, strengthened using composite coated film and protect liquid measure and rate of liquid aspiration, and heat-resisting quantity is good, contraction is small, with conventional separator
Paper is compared, and diaphragm paper of the invention is than the diaphragm paper of general knowledge, and charge and discharge effect is good, and cycle-index is more, more resistant to high temperature and low temperature, tool
There is good application prospect.
Claims (2)
1. a kind of electrolytic capacitor diaphragm paper, it is characterised in that by the following raw material based on its parts by weight：PVDF resins 20-35
Part, TPU55-70 parts, alchlor 1-3 parts, barium titanate 0.03-0.05 parts, acrylic acid 0.02-0.06 parts, polyethylene 0.01-
0.02 part.
A kind of 2. preparation method of electrolytic capacitor diaphragm paper according to claim 1, it is characterised in that preparation process bag
Include as follows：
(1) by PVDF resins and bis- kinds of materials of TPU be mixed it is even after through sealing high temperature 260-280 DEG C of heating, high pressure 1.5-1.8MP
Pressure homogeneous, alchlor is added after being granulated into plastic grain, then heated 230-240 DEG C by comminutor, make its mixing equal
It is even, plastic grain is granulated into by comminutor 1.2-1.5MP pressure, the absolute ethyl alcohol then contained by sealing anaerobic container
Dipping bath 1-2min, obtain clear plastic particle；
(2) the obtained plastic grain of step (1) processing is added into injection machine to heat after 175-190 DEG C of heat melts, extruded
Pressure is the 1.1-1.3MP film for being squeezed into 0.035 ± 0.001mm；
(3) barium titanate, acroleic acid polymerization are obtained into copolymer；
(4), will after shake spraying film surface made from step (2) after hot 180-200 DEG C of the heating of polyethylene particle is melted
The copolymer of step (3) is applied to its surface, through shrinking 1h, shrinkage factor 5-8% in 150-160 DEG C of dry environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711149408.5A CN107731532A (en) | 2017-11-18 | 2017-11-18 | A kind of electrolytic capacitor diaphragm paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711149408.5A CN107731532A (en) | 2017-11-18 | 2017-11-18 | A kind of electrolytic capacitor diaphragm paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107731532A true CN107731532A (en) | 2018-02-23 |
Family
ID=61217201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711149408.5A Pending CN107731532A (en) | 2017-11-18 | 2017-11-18 | A kind of electrolytic capacitor diaphragm paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107731532A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115453A2 (en) * | 2010-03-18 | 2011-09-22 | 주식회사 아모그린텍 | Ultra-fine fibrous porous separator having shutdown function and method for producing same |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
| CN103917569A (en) * | 2011-10-28 | 2014-07-09 | 路博润高级材料公司 | Polyurethane based membranes and/or separators for electrochemical cells |
| CN103972448A (en) * | 2013-01-28 | 2014-08-06 | 海洋王照明科技股份有限公司 | Electrochemical power supply diaphragm and preparation method thereof, and electrochemical battery or capacitor |
| CN104425788A (en) * | 2013-08-28 | 2015-03-18 | 比亚迪股份有限公司 | Lithium-ion battery diaphragm, preparation method of lithium-ion battery diaphragm, as well as lithium-ion battery comprising diaphragm |
| CN105742551A (en) * | 2016-03-23 | 2016-07-06 | 上海恩捷新材料科技股份有限公司 | Electrochemical apparatus isolating membrane and preparation method and application therefor |
-
2017
- 2017-11-18 CN CN201711149408.5A patent/CN107731532A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011115453A2 (en) * | 2010-03-18 | 2011-09-22 | 주식회사 아모그린텍 | Ultra-fine fibrous porous separator having shutdown function and method for producing same |
| KR20110105365A (en) * | 2010-03-18 | 2011-09-26 | 주식회사 아모그린텍 | Ultrafine fibrous separator having shutdown function, method and apparatus for manufacturing the same |
| CN103917569A (en) * | 2011-10-28 | 2014-07-09 | 路博润高级材料公司 | Polyurethane based membranes and/or separators for electrochemical cells |
| CN102751463A (en) * | 2012-07-15 | 2012-10-24 | 湛江市鑫满矿业有限公司 | Lithium-ion power battery isolating membrane and preparation method thereof |
| CN103972448A (en) * | 2013-01-28 | 2014-08-06 | 海洋王照明科技股份有限公司 | Electrochemical power supply diaphragm and preparation method thereof, and electrochemical battery or capacitor |
| CN104425788A (en) * | 2013-08-28 | 2015-03-18 | 比亚迪股份有限公司 | Lithium-ion battery diaphragm, preparation method of lithium-ion battery diaphragm, as well as lithium-ion battery comprising diaphragm |
| CN105742551A (en) * | 2016-03-23 | 2016-07-06 | 上海恩捷新材料科技股份有限公司 | Electrochemical apparatus isolating membrane and preparation method and application therefor |
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| PB01 | Publication | ||
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Application publication date: 20180223 |