CN104538575A - High-temperature-resistant electrolyte membrane and preparation method thereof - Google Patents
High-temperature-resistant electrolyte membrane and preparation method thereof Download PDFInfo
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- CN104538575A CN104538575A CN201410753242.8A CN201410753242A CN104538575A CN 104538575 A CN104538575 A CN 104538575A CN 201410753242 A CN201410753242 A CN 201410753242A CN 104538575 A CN104538575 A CN 104538575A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
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- 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
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Abstract
The invention discloses a high-temperature-resistant electrolyte membrane and a preparation method thereof. The electrolyte membrane comprises the following components in parts by weight: 3-8 parts of polyester fiber, 3-6 parts of graphite, 5-9 parts of polyvinyl chloride, 2-7 parts of polyvinyl alcohol, 5-10 parts of polyacrylate-formaldehyde resin, 1-3 parts of dicyandiamide, 2-5 parts of butyl acrylate, 1-4 parts of caprolactam, 1-3 parts of silicon dioxide, 2-5 parts of polyethyleneglycol, 1-5 parts of methyl cellulose and 3-7 parts of glass fiber. The preparation method comprises the following steps: uniformly stirring and mixing the components in a mixing and stirring machine, then adding into a reaction kettle, reacting under a vacuum heating condition, cooling to room temperature, and finally calendering to obtain the membrane through a calendering method. The high-temperature-resistant electrolyte membrane provided by the invention has excellent mechanical property and electric conductivity, and has favorable high temperature resistance at the same time.
Description
Technical field
The invention belongs to electrolysis material preparing technical field, particularly high temperature resistant electrolyte membrance of one and preparation method thereof.
Background technology
Battery is the device by potential difference, chemical energy being become electric energy.Can be divided into electrochemical cell, fuel cell and solar cell by technology, wherein electrochemical cell can be divided into again the primary cell and chargeable secondary cell that can not charge.
In the secondary battery, barrier film is the important component part of secondary cell, and it connects and separates positive pole and negative pole, and it is the insulator of electronics, but allows Ion transfer to pass through.The quality of membrane properties decides the key characteristics such as battery capacity, cyclicity, charging and discharging currents density.Therefore, the barrier film of excellent performance has important effect for raising battery combination property.
Current battery barrier film is primarily of non-polar polypropylene (PP), polyethylene (PE), PETG (PET) or polarity polyvinylidene fluoride (PVDF) are made, its shortcoming is the interface characteristics difference of apolar surfaces, polarity PVDF membrane mechanical strength is poor, high-temperature digestion, ionic conductivity is poor, simultaneously in the electrolyte membrance field used at present, requirement for the heat resistance of barrier film is also more and more higher, therefore exploitation one is needed to use under the high temperature conditions, there is the electrolyte membrance of good mechanical properties and electric conductivity simultaneously.
Summary of the invention
The object of the invention is to provide a kind of high temperature resistant electrolyte membrance and preparation method thereof to overcome above the deficiencies in the prior art, improving mechanical performance and the electric conductivity of film, there is heat-resisting quantity simultaneously.
Technological means of the present invention is as follows:
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: polyester fiber 3-8 part, graphite 3-6 part, polyvinyl chloride 5-9 part, polyvinyl alcohol 2-7 part, polyacrylic acid methylal resin 5-10 part, dicyandiamide 1-3 part, butyl acrylate 2-5 part, caprolactam 1-4 part, silica 1-3 parts, polyethylene glycol 2-5 part, methylcellulose 1-5 part, glass fibre 3-7 part.
Described high temperature resistant electrolyte membrance, can preferably comprise in components by weight percent: polyester fiber 4-7 part, graphite 4-6 part, polyvinyl chloride 6-8 part, polyvinyl alcohol 3-6 part, polyacrylic acid methylal resin 8-10 part, dicyandiamide 2-3 part, butyl acrylate 3-5 part, caprolactam 1-3 part, silicon dioxide 2-3 part, polyethylene glycol 3-5 part, methylcellulose 3-5 part, glass fibre 5-7 part.
Above-described high temperature resistant electrolyte membrance, silicon dioxide can be nano silicon.
Above-described high temperature resistant electrolyte membrance, polyethylene glycol can be Macrogol 2000.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 60-70 DEG C under vacuum, keep 40-60 minute, and then be warming up to 80-100 DEG C, keep 100-180 minute, then be down to room temperature with the speed of 20-25 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
The preparation method of described high temperature resistant electrolyte membrance, the condition be uniformly mixed in step 2 can for being uniformly mixed speed 180-200 rev/min, incorporation time 30-40 minute.
The preparation method of described high temperature resistant electrolyte membrance, in step 3, vacuum condition can be 0.01-0.05MPa.
High temperature resistant electrolyte membrance extensibility provided by the invention reaches more than 235%, heat distortion temperature reaches more than 163 DEG C, tensile strength reaches more than 26MPa, Young's modulus reaches more than 412MPa, conductance reaches more than 14.5S/m, there is good heat resistance and mechanical performance, there is excellent conductance simultaneously.
Embodiment
Embodiment 1
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: 3 parts, polyester fiber, 3 parts, graphite, polyvinyl chloride 5 parts, polyvinyl alcohol 2 parts, polyacrylic acid methylal resin 5 parts, dicyandiamide 1 part, butyl acrylate 2 parts, caprolactam 1 part, nano silicon 1 part, Macrogol 2000 2 parts, methylcellulose 1 part, 3 parts, glass fibre.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, is specially the speed of being uniformly mixed 180 revs/min, and incorporation time 30 minutes, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 60 DEG C under vacuum degree is 0.01MPa, keep 40 minutes, and then be warming up to 80 DEG C, keep 100 minutes, then be down to room temperature with the speed of 20 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
Embodiment 2
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: 4 parts, polyester fiber, 4 parts, graphite, polyvinyl chloride 6 parts, polyvinyl alcohol 3 parts, polyacrylic acid methylal resin 8 parts, dicyandiamide 2 parts, butyl acrylate 3 parts, caprolactam 1 part, nano silicon 2 parts, Macrogol 2000 3 parts, methylcellulose 3 parts, 5 parts, glass fibre.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, is specially the speed of being uniformly mixed 185 revs/min, and incorporation time 32 minutes, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 63 DEG C under vacuum degree is 0.02MPa, keep 45 minutes, and then be warming up to 86 DEG C, keep 120 minutes, then be down to room temperature with the speed of 21 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
Embodiment 3
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: 6 parts, polyester fiber, 5 parts, graphite, polyvinyl chloride 7 parts, polyvinyl alcohol 5 parts, polyacrylic acid methylal resin 9 parts, dicyandiamide 3 parts, butyl acrylate 4 parts, caprolactam 2 parts, nano silicon 2 parts, Macrogol 2000 4 parts, methylcellulose 4 parts, 6 parts, glass fibre.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, is specially the speed of being uniformly mixed 190 revs/min, and incorporation time 36 minutes, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 65 DEG C under vacuum degree is 0.03MPa, keep 50 minutes, and then be warming up to 88 DEG C, keep 140 minutes, then be down to room temperature with the speed of 23 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
Embodiment 4
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: 7 parts, polyester fiber, 6 parts, graphite, polyvinyl chloride 8 parts, polyvinyl alcohol 6 parts, polyacrylic acid methylal resin 10 parts, dicyandiamide 3 parts, butyl acrylate 5 parts, caprolactam 3 parts, nano silicon 3 parts, Macrogol 2000 5 parts, methylcellulose 5 parts, 7 parts, glass fibre.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, is specially the speed of being uniformly mixed 195 revs/min, and incorporation time 40 minutes, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 70 DEG C under vacuum degree is 0.04MPa, keep 55 minutes, and then be warming up to 100 DEG C, keep 160 minutes, then be down to room temperature with the speed of 25 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
Embodiment 5
A kind of high temperature resistant electrolyte membrance, comprises in components by weight percent: 8 parts, polyester fiber, 6 parts, graphite, polyvinyl chloride 9 parts, polyvinyl alcohol 7 parts, polyacrylic acid methylal resin 10 parts, dicyandiamide 3 parts, butyl acrylate 5 parts, caprolactam 4 parts, nano silicon 3 parts, Macrogol 2000 5 parts, methylcellulose 5 parts, 7 parts, glass fibre.
The preparation method of above-described high temperature resistant electrolyte membrance, comprises the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, is specially the speed of being uniformly mixed 200 revs/min, and incorporation time 40 minutes, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 70 DEG C under vacuum degree is 0.05MPa, keep 60 minutes, and then be warming up to 100 DEG C, keep 180 minutes, then be down to room temperature with the speed of 25 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
Carry out performance test to the high temperature resistant electrolyte membrance that above embodiment prepares, concrete outcome sees the following form:
| Project | Extensibility/% | Heat distortion temperature/DEG C | Tensile strength/MPa | Young's modulus/MPa | Conductance/S/m |
| Embodiment 1 | 235 | 163 | 26 | 412 | 14.5 |
| Embodiment 2 | 267 | 175 | 32 | 425 | 15.2 |
| Embodiment 3 | 288 | 182 | 35 | 433 | 16.7 |
| Embodiment 4 | 279 | 179 | 33 | 427 | 15.4 |
| Embodiment 5 | 265 | 168 | 38 | 418 | 14.9 |
As can be seen from the above results, high temperature resistant electrolyte membrance extensibility provided by the invention reaches more than 235%, heat distortion temperature reaches more than 163 DEG C, tensile strength reaches more than 26MPa, Young's modulus reaches more than 412MPa, conductance reaches more than 14.5S/m, has good heat resistance and mechanical performance, has excellent conductance simultaneously.
Claims (7)
1. a high temperature resistant electrolyte membrance, is characterized in that, comprises in components by weight percent: polyester fiber 3-8 part, graphite 3-6 part, polyvinyl chloride 5-9 part, polyvinyl alcohol 2-7 part, polyacrylic acid methylal resin 5-10 part, dicyandiamide 1-3 part, butyl acrylate 2-5 part, caprolactam 1-4 part, silica 1-3 parts, polyethylene glycol 2-5 part, methylcellulose 1-5 part, glass fibre 3-7 part.
2. high temperature resistant electrolyte membrance according to claim 1, is characterized in that, comprise in components by weight percent: polyester fiber 4-7 part, graphite 4-6 part, polyvinyl chloride 6-8 part, polyvinyl alcohol 3-6 part, polyacrylic acid methylal resin 8-10 part, dicyandiamide 2-3 part, butyl acrylate 3-5 part, caprolactam 1-3 part, silicon dioxide 2-3 part, polyethylene glycol 3-5 part, methylcellulose 3-5 part, glass fibre 5-7 part.
3. high temperature resistant electrolyte membrance according to claim 1 and 2, is characterized in that, silicon dioxide is nano silicon.
4. high temperature resistant electrolyte membrance according to claim 1 and 2, is characterized in that, polyethylene glycol is Macrogol 2000.
5. the preparation method of the high temperature resistant electrolyte membrance described in claim 1 or 2, is characterized in that, comprise the following steps:
Step one, takes each component according to weight portion;
Step 2, is uniformly mixed each component in mixing and blending machine, obtains mixed material one;
Step 3, the mixed material one step 2 obtained joins in reactor, is heated to 60-70 DEG C under vacuum, keep 40-60 minute, and then be warming up to 80-100 DEG C, keep 100-180 minute, then be down to room temperature with the speed of 20-25 DEG C/min, obtain mixed material two;
Step 4, mixed material two-way step 3 obtained crosses rolling process calendering film forming.
6. the preparation method of high temperature resistant electrolyte membrance according to claim 5, is characterized in that, the condition be uniformly mixed in step 2 for being uniformly mixed speed 180-200 rev/min, incorporation time 30-40 minute.
7. the preparation method of high temperature resistant electrolyte membrance according to claim 5, is characterized in that, in step 3, vacuum condition is 0.01-0.05MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732105A (en) * | 2017-09-27 | 2018-02-23 | 芜湖华力五星电源科技有限公司 | A kind of valve controlled sealed lead-acid accumulator dividing plate and preparation method thereof |
| CN113292802A (en) * | 2021-05-28 | 2021-08-24 | 深圳德诚达光电材料有限公司 | Oxidation-resistant colloid battery separator and preparation method thereof |
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2014
- 2014-12-10 CN CN201410753242.8A patent/CN104538575B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732105A (en) * | 2017-09-27 | 2018-02-23 | 芜湖华力五星电源科技有限公司 | A kind of valve controlled sealed lead-acid accumulator dividing plate and preparation method thereof |
| CN113292802A (en) * | 2021-05-28 | 2021-08-24 | 深圳德诚达光电材料有限公司 | Oxidation-resistant colloid battery separator and preparation method thereof |
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| CN104538575B (en) | 2016-11-02 |
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