CN100400747C - Polyolefine fibre diaphragm paper and producing method thereof - Google Patents
Polyolefine fibre diaphragm paper and producing method thereof Download PDFInfo
- Publication number
- CN100400747C CN100400747C CNB2004100250268A CN200410025026A CN100400747C CN 100400747 C CN100400747 C CN 100400747C CN B2004100250268 A CNB2004100250268 A CN B2004100250268A CN 200410025026 A CN200410025026 A CN 200410025026A CN 100400747 C CN100400747 C CN 100400747C
- Authority
- CN
- China
- Prior art keywords
- fiber
- polyamide fiber
- diaphragm paper
- paper
- fibre
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Paper (AREA)
Abstract
The present invention relates to polyolefin fiber diaphragm paper and a manufacture method thereof, which belongs to the technical field of battery diaphragms. The polyolefin fiber diaphragm paper comprises 40 to 80% of grafting modification polyolefin fiber, 5 to 40% of enhanced fiber and 2 to 20% of adhesive. The manufacture method of the polyolefin fiber diaphragm paper has the steps that first, hydrophilic monomers are used for graft copolymerization reaction on the polyolefin fiber; after the grafting modification polyolefin fiber is washed, a wet special paper sieving device is used for sieving the diaphragm paper according to the mixture ratio of 40 to 80% of the grafting modification polyolefin fiber, 5 to 40% of the enhanced fiber and 2 to 20% of the adhesive. The polyolefin fiber diaphragm paper has the advantages of good hydrophilicity, high liquid protection capability, high alkali suction rate, high chemical stability, high oxidation resistance and obvious improvement of the electrical property of MH/Ni batteries.
Description
Technical field
The invention belongs to the battery diaphragm technical field, be specifically related to a kind of polyamide fiber diaphragm paper.
Background technology
The MH/Ni battery is the novel secondary cell that development in recent years is got up, have the specific energy height, battery capacity is big, can reach 1.5～2 times with the volume ickel-cadmium cell, overcharging resisting, discharge, be not afraid of characteristics such as abuse, and can exchange with ickel-cadmium cell, charger need not to do any change and can use, main is that it does not exist as the pollution of heavy metals such as cadmium, mercury to environment, is referred to as " green power supply ".Therefore, the development of MH/Ni battery in recent years is very rapid, progressively replaces ickel-cadmium cell, just is being widely used in the electronic apparatuss such as portable computer, wireless phone, mobile phone, video camera.In above-mentioned MH/Ni secondary cell, barrier film is one of its crucial part, except that playing the effect of isolating both positive and negative polarity, also must have the ability and the excellent chemical stability of good absorption alkaline electrolyte.MH/Ni battery in the past, its barrier film adopt good vinylon barrier film of hydrophily and polyamide fiber barrier film usually, yet the oxidation resistance of vinylon is relatively poor, cause the performance of battery to be subjected to very big influence.The polyamide fiber barrier film can hydrolysis generate for example impurity such as nitrate ion, nitrite ion, ammonia in aqueous slkali, the existence of these impurity causes the self discharge of battery to increase equally, and it is bad that the performance of battery obviously becomes.
Summary of the invention
For overcoming the defective that exists in the above-mentioned prior art, characteristics such as the present invention aims to provide a kind of polyamide fiber diaphragm paper, and possess hydrophilic property is good, alkali absorbing rate is high, oxidation resistance is strong can improve the performance of MH/Ni battery.
As everyone knows, polyamide fiber has remarkable advantages at aspects such as alkali resistance and non-oxidizabilitys than vinylon and polyamide fiber barrier film.Yet unmodified polyamide fiber is hydrophobic, and since its proportion less than 1, fiber can be kept afloat when wet method was manufactured paper with pulp, and had more increased the difficulty of manufacturing paper with pulp.Therefore, at first need polyamide fiber is carried out hydrophilic modifying.
The method of hydrophilic modifying roughly is divided into two classes, be physical modification and chemical modification, physical modification just is to use anionic, cationic or nonionic surface active agent that the polyamide fiber non-weaving cloth is carried out hydrophilic treatment, be assemblied in the battery used as barrier film then, but the hydrophily that this physical modification method obtains can't be lasting, with the battery of this barrier film assembling, after several charge and discharge cycle, the internal resistance of cell obviously increases, and comes to such an extent as to almost can not put electricity at last.Chemical modification method is to pass through chemical reaction, the material of possess hydrophilic property group is incorporated on the big molecule of polyolefin by chemical bonded refractory, by initiation mode difference, can be divided into initator initiation and irradiation and cause two classes, irradiation causes and can be divided into two kinds of pre-irradiation method and mutual radiation methods again, the pre-irradiation method is exactly earlier polyamide fiber to be carried out irradiation under certain atmosphere, and then carries out graft reaction with monomer; The mutual radiation method is that polyamide fiber is carried out irradiation after certain density monomer solution mixes, and in irradiation, carries out graft reaction.Both compare, and the pre-irradiation method is apparent in view to the damage of fibre strength, and the graft process complexity.In mutual radiation grafting process, there are two kinds of reactions to take place simultaneously, a kind of is hydrophilic monomer and molecular polyolefin generation graft copolymerization, hydrophilic monomer is grafted on the molecular polyolefin, thereby makes polyamide fiber obtain lasting hydrophily; Another kind of reaction is the homopolymerization that monomer self takes place, and it descends monomer concentration, and system viscosity increases, and is not wish the reaction that takes place.In order to reduce the speed of homopolymerization as far as possible, it is necessary adding polymerization inhibitor, and this class material with polymerization inhibition effect mainly contains ferrous sulfate, ferric sulfate, copper sulphate, iron ammonium sulfate and copper acetate etc.The concentration of polymerization inhibitor just can make homopolymerization obtain more effectively containing in a certain suitable scope, and the speed of graft copolymerization is then influenced not quite.
Described polyamide fiber diaphragm paper is characterized in that containing graft-modified polyolefin fiber, enhanced fiber, bonding agent, and its proportioning is: graft-modified polyolefin fiber 40～80%, enhanced fiber 5～40%, bonding agent 2～20%.
Described polyamide fiber diaphragm paper is characterized in that each set of dispense ratio is: graft-modified polyolefin fiber 40～70%, enhanced fiber 10～40%, bonding agent 5～20%.
Described polyamide fiber diaphragm paper is characterized in that each set of dispense ratio is: graft-modified polyolefin fiber 40～60%, enhanced fiber 20～40%, bonding agent 10～20%.
Described polyamide fiber diaphragm paper is characterized in that: the fibre length of graft-modified polyolefin fiber is 2～10mm, is preferably 4～8mm.The fibre length of enhanced fiber is 2～10mm, is preferably 4～8mm.
Described polyamide fiber diaphragm paper, it is characterized in that said polyamide fiber is the composite fibre of polypropylene fibre or polyethylene fiber or polypropylene cores and polyethylene sheath, said hydrophilic grafted monomers is one or more the mixture in acrylic acid, methacrylic acid, acrylamide, Methacrylamide and the 4-vinylpridine.
Described polyamide fiber diaphragm paper, it is characterized in that said enhanced fiber is the composite fibre of polypropylene cores and polyethylene sheath, bonding agent is one or more the mixture in PMA, polyethyl acrylate, polyvinyl alcohol, polymethyl methacrylate, polyethyl methacrylate, the carboxymethyl cellulose.
The manufacture method of described polyamide fiber diaphragm paper is characterized in that comprising following processing step:
1) hydrophilic monomer being mixed with concentration is 10～50% the aqueous solution, is preferably 20～40%, adds polymerization inhibitor simultaneously, and making the concentration of polymerization inhibitor in solution is 0.01～1%, is preferably 0.1～0.5%.
2) in polyamide fiber: the ratio of above-mentioned mixed liquor=1: 5～15 joins polyamide fiber in the above-mentioned mixed liquor, preferred proportion is 1: 5～10, pack into after the mixing in the graft reaction device, fed high pure nitrogen 10～60 minutes, being preferably 15～50 minutes, is 2～10KGY through total metering, is preferably gamma-rays or ultraviolet ray or the high-energy electron beam irradiation of 4～8KGY, polyamide fiber is carried out graft copolymerization, make polyamide fiber obtain lasting hydrophily.
3) the graft-modified polyolefin fiber is pressed graft-modified polyolefin fiber 40～80%, enhanced fiber 5～40%, the proportioning of bonding agent 2～20% after washing; Be preferably graft-modified polyolefin fiber 40～70%, enhanced fiber 10～40%, the proportioning of bonding agent 5～20%; More preferably the graft-modified polyolefin fiber 40～60%, enhanced fiber 20～40%, and the proportioning of bonding agent 10～20% adopts the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handles through press polish and ornamenting.
The manufacture method of described polyamide fiber diaphragm paper, it is characterized in that said polyamide fiber is the composite fibre of polypropylene fibre or polyethylene fiber or polypropylene cores and polyethylene sheath, hydrophilic monomer is one or more the mixture in acrylic acid, methacrylic acid, acrylamide, Methacrylamide and the 4-vinylpridine.
The manufacture method of described polyamide fiber diaphragm paper, the composite fibre that it is characterized in that enhanced fiber polypropylene cores and polyethylene sheath, bonding agent are one or more the mixture in PMA, polyethyl acrylate, polyvinyl alcohol, polymethyl methacrylate, polyethyl methacrylate, the carboxymethyl cellulose.
The manufacture method of described polyamide fiber diaphragm paper is characterized in that said polymerization inhibitor is one or more the mixture in the materials such as ferrous sulfate, ferric sulfate, copper sulphate, iron ammonium sulfate or copper acetate.
Polyamide fiber after the graft modification is after washing, has good hydrophilicity, and in water, be uniformly dispersed, slurry system is stable, be equipped with the fiber of a certain proportion of increase paper strength again, adopt the wet method speciality paper equipment of the manufacturing paper with pulp above-mentioned diaphragm paper of just can manufacturing paper with pulp out, and, make diaphragm paper can satisfy the thickness requirement that battery assembles through appropriate postprocessing.
The polyamide fiber diaphragm paper of Zhi Zaoing as stated above, good hydrophilic property, liquid-keeping property is strong, alkali absorbing rate is high, chemical stability is good, oxidation resistance is strong, can obviously improve the electrical property of MH/Ni battery.
Proportioning in the present patent application is the weight percentage or the weight ratio of component pure material.
The specific embodiment
Now further specify polyamide fiber diaphragm paper of the present invention and manufacture method thereof in conjunction with following embodiment.
Embodiment 1:
By methacrylic acid: it is 10% the aqueous solution that acrylic acid=1: 0.8 is mixed with methacrylic acid and acrylic acid total concentration, add ferrous sulfate simultaneously as polymerization inhibitor, the concentration of polymerization inhibitor in solution is 0.1%, with the composite fibre of polypropylene fibre, polyethylene fiber in this composite fibre: the ratio of solution=1: 5 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after this composite fibre and the liquid mixing, logical high pure nitrogen 10 minutes.After total metering is for 2KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 40% of 2mm, length is polypropylene cores, the polyethylene sheath composite fibre 40% of 2mm, the proportioning of PMA 20%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 2
By acrylamide: it is 30% the aqueous solution that acrylic acid=1: 1 is mixed with acrylamide and acrylic acid total concentration, add ferric sulfate simultaneously as polymerization inhibitor, the concentration of polymerization inhibitor in solution is 0.2%, with polypropylene fibre in fiber: the ratio of solution=1: 6 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 15 minutes.After total metering is for 4KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 50% of 3mm, length is polypropylene cores, the polyethylene sheath composite fibre 30% of 3mm, the proportioning of polyethyl acrylate 20%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 3
By the methacryl amino acid: it is 20% the aqueous solution that acrylic acid=1: 1.2 is mixed with total concentration, add copper sulphate simultaneously as polymerization inhibitor, inhibitor concentration is 0.3%, with the composite fibre of polypropylene fibre, polyethylene fiber in this composite fibre: the ratio of solution=1: 7 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 20 minutes.After total metering is for 5KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 50% of 4mm, and length is polypropylene cores, the polyethylene sheath composite fibre 40% of 4mm, the proportioning of polyvinyl alcohol 10%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 4
By methacrylic acid: it is 40% the aqueous solution that acrylamide=1: 0.8 is mixed with total concentration, add copper acetate simultaneously as polymerization inhibitor, inhibitor concentration is 0.4%, with polypropylene fibre in fiber: the ratio of solution=1: 8 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 25 minutes.After total metering is for 6KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 60% of 5mm, length is polypropylene cores, the polyethylene sheath composite fibre 30% of 5mm, the proportioning of polymethyl methacrylate 10%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 5
By methacrylic acid: it is 50% the aqueous solution that Methacrylamide=1: 1 is mixed with total concentration, add iron ammonium sulfate simultaneously as polymerization inhibitor, inhibitor concentration is 0.5%, with polypropylene fibre in fiber: the ratio of solution=1: 9 joins in the above-mentioned reaction liquid logical high pure nitrogen 30 minutes.After total metering is for 7KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 60% of 5mm, length is polypropylene cores, the polyethylene sheath composite fibre 20% of 5mm, the proportioning of polyethyl methacrylate 20%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 6
It is 20% the aqueous solution that acrylic acid is mixed with concentration, add ferrous sulfate, ferric sulfate simultaneously as polymerization inhibitor, inhibitor concentration is 0.2%, with the composite fibre of polypropylene fibre, polyethylene fiber in this composite fibre: the ratio of solution=1: 10 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 30 minutes.After total metering is for 8KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 60% of 6mm, length is polypropylene cores, the polyethylene sheath composite fibre 35% of 6mm, the proportioning of carboxymethyl cellulose 5%, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 7
Being mixed with concentration by methacrylic acid is 40% the aqueous solution, add copper sulphate, iron ammonium sulfate simultaneously as polymerization inhibitor, inhibitor concentration is 0.5%, with polypropylene fibre in fiber: the ratio of solution=1: 11 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 50 minutes.After total metering is for 10KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 70% of 7mm, length is polypropylene cores, the polyethylene sheath composite fibre 38% of 7mm, the proportioning of the mixture 2% of PMA and polyethyl acrylate, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 8
It is 30% the aqueous solution that acrylamide is mixed with concentration, add iron ammonium sulfate, copper acetate simultaneously as polymerization inhibitor, inhibitor concentration is 1%, with polypropylene fibre in fiber: the ratio of solution=1: 12 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 60 minutes.After total metering is for 6KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 70% of 8mm, length is polypropylene cores, the polyethylene sheath composite fibre 20% of 8mm, the proportioning of the mixture 10% of polyvinyl alcohol and polymethyl methacrylate, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 9
It is 30% the aqueous solution that Methacrylamide is mixed with concentration, add ferrous sulfate, ferric sulfate, copper sulphate simultaneously as polymerization inhibitor, inhibitor concentration is 0.3%, with the composite fibre of polypropylene fibre, polyethylene fiber in this composite fibre: the ratio of solution=1: 13 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 35 minutes.After total metering is for 3KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 70% of 9mm, length is polypropylene cores, the polyethylene sheath composite fibre 10% of 9mm, the proportioning of the mixture 20% of polyethyl methacrylate and carboxymethyl cellulose, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Embodiment 10
It is 25% the aqueous solution that 4-vinylpridine is mixed with concentration, add ferrous sulfate, ferric sulfate, copper sulphate, iron ammonium sulfate, copper acetate simultaneously as polymerization inhibitor, inhibitor concentration is 0.5%, with the composite fibre of polypropylene fibre, polyethylene fiber in this composite fibre: the ratio of solution=1: 15 joins in the above-mentioned reaction liquid, in the graft reaction device of packing into after fiber and the liquid mixing, logical high pure nitrogen 45 minutes.After total metering is for 9KGY irradiation, make polyamide fiber obtain lasting hydrophily.
Above-mentioned modified fibre is after washing, by length is the graft-modified polyolefin fiber 80% of 10mm, length is polypropylene cores, the polyethylene sheath composite fibre 5% of 10mm, the proportioning of the mixture 15% of polymethyl methacrylate and polyethyl methacrylate, adopt the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handle through suitable press polish and ornamenting.
Claims (10)
1. polyamide fiber diaphragm paper, it is characterized in that containing the composite fibre and the bonding agent of hydrophilic graft-modified polyolefin fiber, polypropylene cores and polyethylene sheath, its proportioning is: hydrophilic graft-modified polyolefin fiber 40～80%, the composite fibre 5～40% of alkene core and polyethylene sheath in poly-, bonding agent 2～20%.
2. polyamide fiber diaphragm paper as claimed in claim 1 is characterized in that each set of dispense ratio is: hydrophilic graft-modified polyolefin fiber 40～70%, the composite fibre 10～40% of polypropylene cores and polyethylene sheath, bonding agent 5～20%.
3. polyamide fiber diaphragm paper as claimed in claim 1 is characterized in that each set of dispense ratio is: hydrophilic graft-modified polyolefin fiber 40～60%, the composite fibre 20～40% of polypropylene cores and polyethylene sheath, bonding agent 10～20%.
4. polyamide fiber diaphragm paper as claimed in claim 1 is characterized in that: the fibre length of hydrophilic graft-modified polyolefin fiber is 2～10mm, and the fibre length of the composite fibre of polypropylene cores and polyethylene sheath is 2～10mm.
5. polyamide fiber diaphragm paper as claimed in claim 1, it is characterized in that said polyamide fiber is the composite fibre of polypropylene fibre, polyethylene fiber or polypropylene cores and polyethylene sheath, the hydrophilic grafted monomers that hydrophilic graft-modified polyolefin fiber adopts is one or more the mixture in acrylic acid, methacrylic acid, acrylamide, Methacrylamide and the 4-vinylpridine.
6. polyamide fiber diaphragm paper as claimed in claim 1 is characterized in that said bonding agent is one or more the mixture in PMA, polyethyl acrylate, polyvinyl alcohol, polymethyl methacrylate, polyethyl methacrylate, the carboxymethyl cellulose.
7. the manufacture method of the described polyamide fiber diaphragm paper of claim 1 is characterized in that comprising following processing step:
1) hydrophilic monomer being mixed with concentration is 10～50% the aqueous solution, adds 0.01～1% polymerization inhibitor simultaneously,
2) in polyamide fiber: the ratio of above-mentioned mixed liquor=1: 5～15 joins polyamide fiber in the above-mentioned mixed liquor, pack into after the mixing in the graft reaction device, fed high pure nitrogen 10～60 minutes, through total metering is 2～10KGY gamma-rays, ultraviolet ray or high energy ion beam irradiation, polyamide fiber is carried out graft copolymerization, make polyamide fiber obtain lasting hydrophily
3) hydrophilic graft-modified polyolefin fiber by described proportioning, adopts the wet method speciality paper equipment of manufacturing paper with pulp to be ferreted out diaphragm paper, and handles through press polish and ornamenting after washing.
8. the manufacture method of polyamide fiber diaphragm paper as claimed in claim 7, it is characterized in that said polyamide fiber is the composite fibre of polypropylene fibre, polyethylene fiber or polypropylene cores and polyethylene sheath, hydrophilic monomer is one or more the mixture in acrylic acid, methylacrylic acid, acrylamide, Methacrylamide and the 4-vinylpridine.
9. the manufacture method of polyamide fiber diaphragm paper as claimed in claim 7 is characterized in that described bonding agent is one or more the mixture in PMA, polyethyl acrylate, polyvinyl alcohol, polymethyl methacrylate, polyethyl methacrylate, the carboxymethyl cellulose.
10. the manufacture method of polyamide fiber diaphragm paper as claimed in claim 7 is characterized in that said polymerization inhibitor is one or more the mixture in ferrous sulfate, ferric sulfate, copper sulphate, iron ammonium sulfate and the copper acetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100250268A CN100400747C (en) | 2004-06-09 | 2004-06-09 | Polyolefine fibre diaphragm paper and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100250268A CN100400747C (en) | 2004-06-09 | 2004-06-09 | Polyolefine fibre diaphragm paper and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1584202A CN1584202A (en) | 2005-02-23 |
| CN100400747C true CN100400747C (en) | 2008-07-09 |
Family
ID=34601103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100250268A Expired - Fee Related CN100400747C (en) | 2004-06-09 | 2004-06-09 | Polyolefine fibre diaphragm paper and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100400747C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414740C (en) * | 2006-08-23 | 2008-08-27 | 常州市康捷电池材料有限公司 | Grafted polypropylene diaphragm and manufacturing method |
| CN102903921B (en) * | 2012-10-31 | 2015-09-02 | 厦门大学 | A kind of take fluorocarbons as the water system battery of positive pole |
| CN104631198B (en) * | 2015-01-28 | 2017-05-31 | 浙江省普瑞科技有限公司 | Diaphragm paper for mercury-free alkaline zinc-manganese dioxide battery and preparation method thereof |
| CN112681001A (en) * | 2020-12-16 | 2021-04-20 | 宁波日新恒力科技有限公司 | Wet nonwoven fabric for reverse osmosis membrane support base material and preparation method thereof |
| CN114032703B (en) * | 2021-11-08 | 2022-08-16 | 江苏厚生新能源科技有限公司 | High-wettability non-woven fabric lithium battery diaphragm and preparation method thereof |
| CN114221091A (en) * | 2021-12-17 | 2022-03-22 | 深圳市量能科技有限公司 | Irradiation modification method for lithium ion battery diaphragm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112295A (en) * | 1994-01-18 | 1995-11-22 | 帕尔公司 | Battery separator |
| JPH10106529A (en) * | 1996-09-30 | 1998-04-24 | Tomoegawa Paper Co Ltd | Separator for battery |
| CN1252470A (en) * | 1998-10-27 | 2000-05-10 | 三井化学株式会社 | Polyolefine synthetic paper pulp and use thereof |
| CN1407639A (en) * | 2001-08-29 | 2003-04-02 | 三洋电机株式会社 | Diaphragm for Ni-H accumulator and Ni-H accumulator |
-
2004
- 2004-06-09 CN CNB2004100250268A patent/CN100400747C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112295A (en) * | 1994-01-18 | 1995-11-22 | 帕尔公司 | Battery separator |
| JPH10106529A (en) * | 1996-09-30 | 1998-04-24 | Tomoegawa Paper Co Ltd | Separator for battery |
| CN1252470A (en) * | 1998-10-27 | 2000-05-10 | 三井化学株式会社 | Polyolefine synthetic paper pulp and use thereof |
| CN1407639A (en) * | 2001-08-29 | 2003-04-02 | 三洋电机株式会社 | Diaphragm for Ni-H accumulator and Ni-H accumulator |
Non-Patent Citations (4)
| Title |
|---|
| 金属氢化物-镍电池用隔膜的研究进展. 唐致远，荣强，宋世栋，许峥嵘，王岩.现代化工，第23卷第增刊期. 2003 |
| 金属氢化物-镍电池用隔膜的研究进展. 唐致远，荣强，宋世栋，许峥嵘，王岩.现代化工，第23卷第增刊期. 2003 * |
| 非织造布电池隔膜概述. 张春林.非织造布，第13卷第2期. 1999 |
| 非织造布电池隔膜概述. 张春林.非织造布，第13卷第2期. 1999 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1584202A (en) | 2005-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102888016B (en) | Preparation method of lithium-ion secondary battery diaphragm with crosslinking composite layer | |
| CN105932203B (en) | A kind of preparation method of the porosity lithium ion battery separator with inierpeneirating network structure | |
| KR101119801B1 (en) | An aqueous binder for lithium ion battery, the preparation method thereof and an anode plate of lithium ion battery | |
| CN101267028B (en) | A sulphur-modified polyolefin battery separation film and its making method | |
| CN102432906A (en) | Grafting modified high polymer material, and preparation method and application thereof | |
| CN104201309B (en) | The composite membrane of polyolefin porous membrane and aramid nano-fiber and complex method and application | |
| CN110911612B (en) | Cellulose acetate-based cross-linked composite lithium ion battery diaphragm and preparation method and application thereof | |
| CN100414740C (en) | Grafted polypropylene diaphragm and manufacturing method | |
| CN108598388A (en) | A kind of C/SiO2Coat lithium electricity tertiary cathode material and preparation method thereof | |
| CN111180641A (en) | Diaphragm with self-crosslinking function and preparation method thereof | |
| CN100400747C (en) | Polyolefine fibre diaphragm paper and producing method thereof | |
| CN109088031A (en) | Ceramic coating membrane slurry, Ceramic Composite diaphragm and its preparation method and application | |
| CN101241985A (en) | Improved polyalkene diaphragm and its making method | |
| CN102516573A (en) | Preparation method of organic-inorganic composite alkaline battery diaphragm | |
| CN107863524A (en) | A kind of nickelic positive electrode of lithium ion battery and preparation method thereof | |
| CN113140715B (en) | Composite cathode material, preparation method thereof and lithium ion battery | |
| CN110437777B (en) | Preparation method and application of functionalized graphene quantum dot modified gel binder | |
| CN109638291B (en) | Positive electrode slurry, preparation method, positive plate and lithium ion battery | |
| CN110492101B (en) | Lithium ion battery cathode binder and preparation method and application thereof | |
| CN112436183A (en) | Semi-gelled electrolyte battery and preparation method thereof | |
| CN116814200A (en) | High-conductivity lithium ion battery positive electrode binder and preparation method thereof | |
| CN115806647A (en) | Polymer emulsion for battery diaphragm and preparation method and application thereof | |
| CN115799622A (en) | Composite solid electrolyte particle and preparation method and application thereof | |
| CN108520958A (en) | Polymer-modified binder, electrode slurry and electrode and lithium ion battery | |
| JP2009193755A (en) | Reactive polymer supporting porous film for separator for battery and electrode/separator assembly obtained therefrom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20160609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |