CN108288685A - Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology - Google Patents
Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology Download PDFInfo
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- CN108288685A CN108288685A CN201711475134.9A CN201711475134A CN108288685A CN 108288685 A CN108288685 A CN 108288685A CN 201711475134 A CN201711475134 A CN 201711475134A CN 108288685 A CN108288685 A CN 108288685A
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- lithium battery
- battery diaphragm
- polyoxyethylene
- compressing device
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Cell Separators (AREA)
Abstract
Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology, including polyoxyethylene membrane layer, protein polypropylene polymerization material layer, hourglass shape micropore；It is provided with the polyoxyethylene material layer on the lithium battery diaphragm, the hourglass shape micropore is provided on the lithium battery diaphragm.Provided with hourglass shape micropore, improve the extension liquid energy power of diaphragm, lithium battery diaphragm is made using ultra high molecular polyethylene material has good corrosion-resistant and high temperature resistance when in use, keep stable use characteristic in the battery in temperature change when the corrosive environment of electrolyte that can be and use, to extend the stability of battery used, improve battery performance, and polyoxyethylene hydrophilic material is set on surface, improve the hydrophily of membrane surface, three-decker, middle layer coordinates protein, it has the ability to polarize to the position that can form hydrogen bond, and make it for oil or other hydroholic solutions, it is easier to be dissolved in inside water, with good application value.
Description
Technical field
The present invention relates to lithium battery diaphragm technical field, in specially a kind of utilization try out air compressing device prepare lithium battery every
Film processing technology.
Background technology
Polypropylene is one of five big general-purpose plastics, since nineteen fifty-seven realizes industrialized production, has had more than 50 years and has gone through
History.Polyacrylic excellent in mechanical performance has higher yield strength, tensile strength, case hardness and elasticity modulus etc., and has
The fusing point of preferable heat resistance, homopolypropylene is up to 165 DEG C, can be used for a long time in the environment of 100-120 DEG C；Poly- third
Alkene is semicrystalline polymeric, and after nucleating agent or biaxial tension is added, product has good transparent performance；Polypropylene is also
Have many advantages, such as that good electrical insulating property, easy processing are molded, are cheap.Currently, lithium battery diaphragm production mainly uses method
Have：1, pulling method (dry method)：Plastic film is added to certain temperature, is stretched using physical method, strand is made to generate larger sky
Gap.The method hole density and pore size control are more difficult, and the micropore uniformity is poor；2, wet method：It enables plastic film be in liquid condition, is added
The liquid substance of another boiling point difference intermediary changes temperature and intermediary's substance facies analysis is enabled to be precipitated.It is left on the film left
Intermediary be not precipitated after space, as micropore.The method speed of production is slow, and cost is higher, and technology difficulty is big.The two production
Microporous barrier extension liquid (electrolyte of film absorption) ability is general, is unfavorable for ion and passes through.
Invention content
The purpose of the present invention is to provide trying out air compressing device in a kind of utilization to prepare lithium battery diaphragm processing technology, with solution
Certainly the problems mentioned above in the background art.
To achieve the above object, the present invention provides the following technical solutions：
Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology, it is characterised in that：Including polyoxyethylene
Membrane layer, protein-polypropylene polymerization material layer, hourglass shape micropore；The polyoxyethylene is provided on the lithium battery diaphragm
Material layer is provided with the hourglass shape micropore on the lithium battery diaphragm.
The polyoxyethylene membrane layer includes：50-70 parts of epoxy resin, activity are without 60-70 parts of tassement polaire, propylene oxide
20-30 parts of diluent, 60-70 parts of polyvinyl alcohol, 15-20 parts of Artemisia Glue, 12-18 parts of hydroxypropyl cellulose, calcium carbonate 13-15
14-18 parts part, 4-10 parts of glutaraldehyde, 13-15 parts of octadecyl alcolol of oxidized polyethylene wax.
The protein-polypropylene polymerization material layer includes：15-20 parts of zinc stearate, oxidized polyethylene wax 14-18
Part, 12-17 parts of ethyl silicon oil, 5-15 parts of property-modifying additive, 100-120 parts of soybean protein, 50-60 parts of acrylic resin.
The lithium battery diaphragm thickness is 12-38 μm.
Further, the hourglass shape micropore is made of and the smaller diameter end pair of two funnel-shaped holes two funnel-shaped holes
It connects.
Preparation method includes the following steps：
It is prepared by polyoxyethylene membrane layer：By epoxy resin, propylene oxide diluent, activity without tassement polaire hot milling, mixing
Temperature is 120 DEG C, then 24 hours time futher stirred mashing with Artemisia Glue, and obtained hot glue；
First hot glue is put into polyvinyl alcohol in baking oven and is dried, is then made after double screw extruder extrusion, water cooling, cutting
Obtain biodegradable master batch；
First base cellulose, calcium carbonate, glutaraldehyde, octadecyl alcolol are uniformly mixed, then squeezed out through double screw extruder, water
Light degradation masterbatch is made after cold, cutting；
Double screw extruder is added in biodegradable master batch obtained and light degradation masterbatch, is made after extrusion, water cooling, cutting
Mother raw material degradable, most afterwards through inflation film manufacturing machine blown film up to polyoxyethylene membrane layer；
It is prepared by protein-polypropylene polymerization material layer：
It is prepared by polyoxyethylene membrane layer：By zinc stearate, oxidized polyethylene wax, ethyl silicon oil, property-modifying additive, soybean egg
White matter, acrylic resin hot milling, mixing temperature are 120 DEG C, then 24 hours time futher stirred with Artemisia Glue and beats
Slurry, obtains hot glue；
It between hot glue is applied to two layers of polyoxyethylene membrane layer, is suppressed using air compressing device, removes extra glue, completed.
The lithium battery diaphragm of the present invention is provided with hourglass shape micropore, improves the extension liquid energy power of diaphragm, use supra polymer
Lithium battery diaphragm is made in polythene material has good corrosion-resistant and high temperature resistance, electricity that can be in the battery when in use
Stable use characteristic is kept in temperature change when solving corrosive environment and the use of liquid, it is steady to extend using for battery
It is qualitative, battery performance is improved, and polyoxyethylene hydrophilic material is set on surface, improves the hydrophily of membrane surface,
Three-decker, middle layer coordinate protein, and polarization of having the ability makes it to oil or other are hydrophobic to can form the position of hydrogen bond
Property solution for, it is easier to be dissolved in inside water, there is good application value.
Specific implementation mode
Below in conjunction in the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology, including polyoxyethylene membrane layer, albumen
Matter-polypropylene polymerization material layer, hourglass shape micropore；The polyoxyethylene material layer is provided on the lithium battery diaphragm, it is described
The hourglass shape micropore is provided on lithium battery diaphragm.
Implement 1：Polyoxyethylene membrane layer includes：50 parts of epoxy resin, activity are without 60 parts of tassement polaire, propylene oxide diluent
20 parts, 60 parts of polyvinyl alcohol, 15 parts of Artemisia Glue, 12 parts of hydroxypropyl cellulose, 13 parts of calcium carbonate, 4 parts of glutaraldehyde, 13 parts of octadecyl alcolol
14 parts of oxidized polyethylene wax.
Protein-polypropylene polymerization material layer includes：15 parts of zinc stearate, 14 parts of oxidized polyethylene wax, ethyl silicon oil 12
Part, 5 parts of property-modifying additive, 100 parts of soybean protein, 50 parts of acrylic resin.
Implement 2：Polyoxyethylene membrane layer includes：70 parts of epoxy resin, activity are without 70 parts of tassement polaire, propylene oxide diluent
30 parts, 70 parts of polyvinyl alcohol, 20 parts of Artemisia Glue, 18 parts of hydroxypropyl cellulose, 15 parts of calcium carbonate, 10 parts of glutaraldehyde, octadecyl alcolol 15
18 parts of oxidized polyethylene wax of part.
Protein-polypropylene polymerization material layer includes：20 parts of zinc stearate, 18 parts of oxidized polyethylene wax, ethyl silicon oil 17
Part, 15 parts of property-modifying additive, 120 parts of soybean protein, 60 parts of acrylic resin.
Implement 3：Polyoxyethylene membrane layer includes：60 parts of epoxy resin, activity are without 65 parts of tassement polaire, propylene oxide diluent
25 parts, 650-70 parts of polyvinyl alcohol, 18 parts of Artemisia Glue, 15 parts of hydroxypropyl cellulose, 14 parts of calcium carbonate, 6 parts of glutaraldehyde, octadecyl alcolol
14 parts of 16 parts of oxidized polyethylene wax.
Protein-polypropylene polymerization material layer includes：18 parts of zinc stearate, 16 parts of oxidized polyethylene wax, ethyl silicon oil 15
Part, 10 parts of property-modifying additive, 110 parts of soybean protein, 55 parts of acrylic resin.
Lithium battery diaphragm thickness is 12-38 μm.
Hourglass shape micropore is made of two funnel-shaped holes and the smaller diameter end of two funnel-shaped holes is docked.
Preparation method includes the following steps：
It is prepared by polyoxyethylene membrane layer：By epoxy resin, propylene oxide diluent, activity without tassement polaire hot milling, mixing
Temperature is 120 DEG C, then 24 hours time futher stirred mashing with Artemisia Glue, and obtained hot glue；
First hot glue is put into polyvinyl alcohol in baking oven and is dried, is then made after double screw extruder extrusion, water cooling, cutting
Obtain biodegradable master batch；
First base cellulose, calcium carbonate, glutaraldehyde, octadecyl alcolol are uniformly mixed, then squeezed out through double screw extruder, water
Light degradation masterbatch is made after cold, cutting；
Double screw extruder is added in biodegradable master batch obtained and light degradation masterbatch, is made after extrusion, water cooling, cutting
Mother raw material degradable, most afterwards through inflation film manufacturing machine blown film up to polyoxyethylene membrane layer；
It is prepared by protein-polypropylene polymerization material layer：
It is prepared by polyoxyethylene membrane layer：By zinc stearate, oxidized polyethylene wax, ethyl silicon oil, property-modifying additive, soybean egg
White matter, acrylic resin hot milling, mixing temperature are 120 DEG C, then 24 hours time futher stirred with Artemisia Glue and beats
Slurry, obtains hot glue；
It between hot glue is applied to two layers of polyoxyethylene membrane layer, is suppressed using air compressing device, removes extra glue, completed.
3 kinds of implementations, finished product experimental result are as follows：
After finished product is placed 3 months at normal temperatures, then survey its hydrophily, as a result display material still have can be by pure water
The characteristic soaked at once is less than 10 degree to the contact angle of pure water.
Implement 1：Under 20 inches of mmhg pressures, water flow is 54 seconds/100 milliliters pure water/9.50 square centimeter mistakes
Filtering surface accumulates.Former 0.2 micron pore size polypropylene filter is hydrophobic material, does not have hydrophily immediately, cannot at once be moistened by pure water
It is wet.But there is hydrophily immediately with the lithium battery diaphragm that the method prepares, can at once be soaked by pure water.After being soaked by pure water
Pure water bubble point is 3.4 kg/cms.
Implement 2：Under 20 inches of mmhg pressures, water flow is 53 seconds/100 milliliters pure water/8.62 square centimeter mistakes
Filtering surface accumulates.Former 0.2 micron pore size polypropylene filter is hydrophobic material, does not have hydrophily immediately, cannot at once be moistened by pure water
It is wet.But there is hydrophily immediately with the lithium battery diaphragm that the method prepares, can at once be soaked by pure water.After being soaked by pure water
Pure water bubble point is 3.5 kg/cms.
Implement 3：Under 20 inches of mmhg pressures, water flow is 56 seconds/100 milliliters pure water/9.62 square centimeter mistakes
Filtering surface accumulates.Former 0.2 micron pore size polypropylene filter is hydrophobic material, does not have hydrophily immediately, cannot at once be moistened by pure water
It is wet.But there is hydrophily immediately with the lithium battery diaphragm that the method prepares, can at once be soaked by pure water.After being soaked by pure water
Pure water bubble point is 3.3 kg/cms.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. trying out air compressing device in a kind of utilization prepares lithium battery diaphragm processing technology, it is characterised in that：Preparation method includes
Following steps：
It is prepared by polyoxyethylene membrane layer：By epoxy resin, propylene oxide diluent, activity without tassement polaire hot milling, mixing temperature
It it is 120 DEG C, then 24 hours time futher stirred mashing with Artemisia Glue, and obtained hot glue；
First hot glue is put into polyvinyl alcohol in baking oven and is dried, life is then made after double screw extruder extrusion, water cooling, cutting
Object degradable master batch；
First base cellulose, calcium carbonate, glutaraldehyde, octadecyl alcolol are uniformly mixed, then through double screw extruder extrusion, water cooling, cut
Light degradation masterbatch is made after cutting；
Double screw extruder is added in biodegradable master batch obtained and light degradation masterbatch, is made double down after extrusion, water cooling, cutting
Masterbatch is solved, most afterwards through inflation film manufacturing machine blown film up to polyoxyethylene membrane layer；
It is prepared by protein-polypropylene polymerization material layer：
It is prepared by polyoxyethylene membrane layer：By zinc stearate, oxidized polyethylene wax, ethyl silicon oil, property-modifying additive, soybean protein
Matter, acrylic resin hot milling, mixing temperature are 120 DEG C, then 24 hours time futher stirred with Artemisia Glue and beats
Slurry, obtains hot glue；
It between hot glue is applied to two layers of polyoxyethylene membrane layer, is suppressed using air compressing device, removes extra glue, completed.
2. lithium battery diaphragm processing technology is prepared according to air compressing device is tried out in a kind of utilization described in claim 1, it is special
Sign is：The polyoxyethylene membrane layer includes：50-70 parts of epoxy resin, activity are without 60-70 parts of tassement polaire, propylene oxide
20-30 parts of diluent, 60-70 parts of polyvinyl alcohol, 15-20 parts of Artemisia Glue, 12-18 parts of hydroxypropyl cellulose, calcium carbonate 13-15
14-18 parts part, 4-10 parts of glutaraldehyde, 13-15 parts of octadecyl alcolol of oxidized polyethylene wax.
3. lithium battery diaphragm processing technology is prepared according to air compressing device is tried out in a kind of utilization described in claim 1, it is special
Sign is：The protein-polypropylene polymerization material layer includes：15-20 parts of zinc stearate, 14-18 parts of oxidized polyethylene wax,
12-17 parts of ethyl silicon oil, 5-15 parts of property-modifying additive, 100-120 parts of soybean protein, 50-60 parts of acrylic resin.
4. lithium battery diaphragm processing technology is prepared according to air compressing device is tried out in a kind of utilization described in claim 1, it is special
Sign is：The lithium battery diaphragm thickness is 12-38 μm.
5. lithium battery diaphragm processing technology is prepared according to air compressing device is tried out in a kind of utilization described in claim 1, it is special
Sign is：The hourglass shape micropore is made of two funnel-shaped holes and the smaller diameter end of two funnel-shaped holes is docked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475134.9A CN108288685A (en) | 2017-12-29 | 2017-12-29 | Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475134.9A CN108288685A (en) | 2017-12-29 | 2017-12-29 | Air compressing device is tried out in a kind of utilization prepares lithium battery diaphragm processing technology |
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| CN108288685A true CN108288685A (en) | 2018-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259908A (en) * | 2020-11-04 | 2021-01-22 | 界首市天鸿新材料股份有限公司 | Processing technology for preparing lithium battery diaphragm by utilizing air compression device |
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Application publication date: 20180717 |