CN109910420A - A kind of preparation method of insulation high-temperature-resistant battery wrapping film - Google Patents
A kind of preparation method of insulation high-temperature-resistant battery wrapping film Download PDFInfo
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Abstract
The present invention relates to a kind of preparation methods of insulation high-temperature-resistant battery wrapping film, belong to packaging film preparation technical field.Hybrid solid product is made using stalk and soybean as raw material first in the present invention, then by hybrid solid product and water, citric acid mixing, it adds copper powder and modification liquid is made, filter cake is obtained by filtration in modification liquid, filter cake is mixed with methyl acrylate again and is applied on nylon film hot pressing up to insulation high-temperature-resistant battery wrapping film, the present invention utilizes the amino extracted from soybean, carboxyl forms Absorptive complex wave to aluminium ion and other Chemical bondings adsorb more strong be adsorbed in fiber molecule, copper ion reacts generation copper oxide with oxygen and is mixed in carbon fiber, aluminium elemental oxygen metaplasia is at alumina-coated on fiber simultaneously, improve the insulation performance and high temperature resistance of packaging film, it has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of insulation high-temperature-resistant battery wrapping film, belong to packaging membrane preparation technology neck
Domain.
Background technique
With the application of internet and Internet of Things, intelligent electronic device tends to high quality, cost effective direction is developed.Lithium
Ion battery is current internationally recognized desirable chemical power supply, and with voltage height, energy density is big, has extended cycle life, self discharge
Small, memory-less effect, operating temperature range be wide, many merits such as pollution-free, can be widely applied to mobile phone, digital camera, game
The fields such as mechanical, electrical sub- equipment, electric car, space technology and national defense industry.
Currently, common energy output precision of the soft bag lithium ionic cell as intelligent electronic device, in intelligent electronic device
Whole production cost in terms of in occupation of certain specific gravity, the manufacturing cost of soft bag lithium ionic cell directly influences smart electronics
The height of the whole production cost of equipment, and then it is universal to influence intelligent electronic device further genralrlization.For lithium ion battery
For, polymer battery manufacturer generallys use housing material of the plastic-aluminum packaging film as lithium ion battery, primarily serves packaging
With the effect of sealing, therefore it is required that aluminum plastic film with good sealing performance, certain mechanical performance and have it is thin as far as possible
Thickness.
Currently, by plastic-aluminum Membrane cover after battery case, by air-heater plastic packaging.The battery wrapping film is easy to operate, price
Cheaply, but its shortcoming is causes battery non-refractory, breakdown potential to force down since material temperature tolerance is poor, and battery insulation is poor,
It is not suitable for high-power lithium ion battery.In addition to this, current aluminium foil be all using the hot cold-rolling process Rolling Production of multistep and
At a large amount of lattice crackle will necessarily be generated during the rolling process, structure folds and major defects, this defect such as dislocation are direct
Cause the reduction of aluminium foil mechanical strength and the generation of pin hole；Additionally, due to the limitation of processing technology, the thickness of aluminium foil is difficult to do
To 10 μm or less without going wrong.
Therefore it provides a kind of, battery packaging film will not be damaged when lithium ion battery can be made to discharge under the high temperature conditions, be guaranteed
The good packing film for high temp resistance lithium ion cell of battery insulation is of great significance.
Summary of the invention
The technical problems to be solved by the invention: the bad, high temperature resistance for current battery wrapping film insulation performance
The defect of difference, provides a kind of preparation method of insulation high-temperature-resistant battery wrapping film.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
The specific preparation step of insulation high-temperature-resistant battery wrapping film are as follows:
Mixed glue solution is uniformly applied on the nylon film with a thickness of 20~40 μm, then place on nylon film with a thickness of 35~
This product is placed in hot press by 45 μm of aluminium foil, is 70~80 DEG C in temperature, compacting pressure is pressed under conditions of being 5~6MPa
2~3h is made, is put into baking oven after compacting, dry 2~3h, discharges up to insulation high-temperature-resistant under conditions of temperature is 70~90 DEG C
Battery wrapping film；
The specific preparation step of mixed glue solution are as follows:
(1) it weighs in hybrid solid product, distilled water and citric acid investment beaker, with agitating device with 400~500r/min's
Revolving speed is mixed 80~100min and mixed liquor is made, and copper powder is added into beaker, places the beaker in sonic oscillation instrument, in frequency
Modification liquid is made in 3~5h of oscillation under conditions of rate is 32~36kHz；
(2) filter cake is obtained by filtration in modification liquid, is successively cleaned filter cake 3~5 times with dehydrated alcohol and distilled water, filter cake is placed in instead
Answer in kettle, increase temperature in the kettle to 110~120 DEG C, constant temperature stands 3~4h, pre product is made after standing, by pre product with
Methyl acrylate puts into blender and mixing and mixed glue solution is uniformly made；
The specific preparation step of hybrid solid product are as follows:
(1) by corn stover and soybean particle investment baking oven, dry 12~14h, is done under conditions of temperature is 75~85 DEG C
It is ground in investment grinder after dry, crosses 50 meshes and obtain sieving, the hydrochloric acid investment three for being 6~8% by sieving and mass fraction
In mouth flask, 30~40min is mixed with the revolving speed of 300~400r/min with agitating device, 4~6h is stood after stirring and is made
Reacting slurry；
(2) aluminum chloride powder is put into three-necked flask, and three-necked flask is placed in resistance heating set, increases jacket temperature extremely
80~100 DEG C, 100~120min of heated at constant temperature, mixed serum is made after heating, mixed serum is put into beaker, by beaker
It is put into vacuum oven, is 50~60 DEG C in temperature, 24~26h of concentration is made dense under conditions of vacuum degree is 100~120Pa
Contracting product；
(3) enriched product is put into baking furnace, argon gas is full of into baking furnace, raising in-furnace temperature is high to 700~800 DEG C
Temperature stands 2~3h and sintered product is made, and sintered product is put into grinder, mixed grinding sieves with 100 mesh sieve to obtain hybrid solid
Product.
In the specific preparation step (1) of mixed glue solution it is preferred according to parts by weight, hybrid solid product is 8~10 parts,
Distilled water is 16~20 parts, citric acid is 2~3 parts.
The quality for the copper powder being added in the specific preparation step (1) of mixed glue solution into beaker be mixed liquor quality 4~
8%。
The mass ratio of pre product and methyl acrylate is 1:3 in the specific preparation step (2) of mixed glue solution.
The mass ratio of corn stover and soybean particle is 3:1 in the specific preparation step (1) of hybrid solid product.
The mass ratio for the hydrochloric acid that sieving and mass fraction are 6~8% in the specific preparation step (1) of hybrid solid product
For 1:5.
The quality of the aluminum chloride powder put into the specific preparation step (2) of hybrid solid product into three-necked flask is anti-
Answer the 3~5% of grind slurries quality.
Firing temperature in the specific preparation step (3) of hybrid solid product in baking furnace can further be preferably
750~760 DEG C.
The method have the benefit that:
(1) stalk and soybean particle are mixed drying first by the present invention, and grinding is reacted with hydrochloric acid after drying, add aluminium chloride height
Temperature reaction, is concentrated and dried after reaction and enriched product is made, and hybrid solid product is made in enriched product high temperature sintering, grinding, with
Hybrid solid product is mixed with water, citric acid afterwards, copper powder sonic oscillation is added and modification liquid is made, modification liquid is obtained by filtration
Then aluminium foil is placed on nylon film hot pressing to obtain the final product by filter cake, then filter cake is mixed with methyl acrylate and is applied on nylon film
Insulation high-temperature-resistant battery wrapping film, the present invention utilize salt acid soak stalk and soybean mixture, therefrom extract fiber at
Point and soybean in protein, protein is denaturalized in acid condition, and Fragmentation generates more amino radicals and carboxylic
Base free radical forms more hydrogen bonds, covalent bond absorption makes adhesion strength increasing between other each molecules in fibre composition and packaging film
Add, enhance the micro-space structural strength of packaging film, the compactness extent enhancing between each ingredient is difficult to be thermally decomposed, and reinforces resistance to
High-temperature behavior, fibre composition pass through hydrochloric Acid Modification, and fiber sheath moieties are oxidized, and generate carboxyl, increase free radical quantity,
The conjugation between other ingredients is improved, other molecular structures in packaging film is coated, generation is preferentially carbonized when by high temperature
The more stable carbon fiber protective packaging film of chemical property, heat resistance, to further strengthen the high temperature resistance of packaging film.
The present invention extracts plant fiber component from stalk and soybean particle, and by aluminium ion introduced plant fiber, benefit
With the amino extracted from soybean, carboxyl forms Absorptive complex wave to aluminium ion and the absorption of other Chemical bondings is stronger
Be adsorbed in fiber molecule, recycle copper to aluminium carry out displacement make aluminium ion be precipitated generate aluminum metal simple substance, it is anti-by high temperature
Answer, copper ion reacted with oxygen generate copper oxide be mixed in carbon fiber, while aluminium elemental oxygen metaplasia at alumina-coated in fibre
In dimension, by copper oxide and the good insulation performance of aluminium oxide, enhance the insulation performance of packaging film, and has in conjunction with carbon fiber
High temperature resistance and the high temperature resistance that has of metal oxide itself, significantly improve the high temperature resistance of packaging film, have
Have broad application prospects.
Specific embodiment
Corn stover and soybean particle 3:1 in mass ratio are put into baking oven, it is dry under conditions of temperature is 75~85 DEG C
Dry 12~14h puts into grinder after dry and grinds, and crosses 50 meshes and obtains sieving, is 6~8% by sieving and mass fraction
Hydrochloric acid 1:5 in mass ratio investment three-necked flask in, be mixed 30 with agitating device with the revolving speed of 300~400r/min~
40min stands 4~6h and reacting slurry is made after stirring；The chlorination of reacting slurry quality 3~5% is put into above-mentioned three-necked flask
Three-necked flask is placed in resistance heating set by aluminium powder, increases jacket temperature to 80~100 DEG C, and heated at constant temperature 100~
Mixed serum is made in 120min after heating, mixed serum is put into beaker, beaker is put into vacuum oven, in temperature
It is 50~60 DEG C, enriched product is made in 24~26h of concentration under conditions of vacuum degree is 100~120Pa；Above-mentioned enriched product is thrown
Enter in paper money burning stove, argon gas is full of into paper money burning stove, increases in-furnace temperature to 700~800 DEG C, sintering is made in 2~3h of quiescence in high temperature
Product puts into sintered product in grinder, and mixed grinding sieves with 100 mesh sieve to obtain hybrid solid product；According to parts by weight, claim
Take in 8~10 parts of above-mentioned hybrid solid products, 16~20 parts of distilled water and 2~3 parts of citric acids investment beakers, with agitating device with
The revolving speed of 400~500r/min is mixed 80~100min and mixed liquor is made, and mixed liquor quality 4~8% is added into beaker
Copper powder places the beaker in sonic oscillation instrument, and modification liquid is made in 3~5h of oscillation under conditions of frequency is 32~36kHz；It will be upper
It states modification liquid and filter cake is obtained by filtration, successively cleaned filter cake 3~5 times with dehydrated alcohol and distilled water, filter cake is placed in reaction kettle,
Temperature in the kettle is increased to 110~120 DEG C, constant temperature stands 3~4h, pre product is made after standing, by pre product and acrylic acid
Methyl esters 1:3 in mass ratio puts into blender and mixing and mixed glue solution is uniformly made；By above-mentioned mixed glue solution be uniformly applied to a thickness of
It on 20~40 μm of nylon film, then places with a thickness of 35~45 μm of aluminium foil on nylon film, this product is placed in hot pressing
It is 70~80 DEG C in temperature in machine, compacting pressure suppresses 2~3h under conditions of being 5~6MPa, it is put into baking oven after compacting,
Temperature dry 2~3h under conditions of being 70~90 DEG C, discharges up to insulation high-temperature-resistant battery wrapping film.
The preparation of reacting slurry: corn stover and soybean particle 3:1 in mass ratio are put into baking oven, are 75 DEG C in temperature
Under conditions of dry 12h, put into grinder and grind after dry, cross 50 meshes and obtain sieving, by sieving and mass fraction
It is put into three-necked flask for 6% hydrochloric acid 1:5 in mass ratio, 30min is mixed with the revolving speed of 300r/min with agitating device,
4h is stood after stirring, and reacting slurry is made.
The preparation of enriched product: the aluminum chloride powder of reacting slurry quality 3%, Jiang Sankou are put into Xiang Shangshu three-necked flask
Flask is placed in resistance heating set, increases jacket temperature to 80 DEG C, heated at constant temperature 100min, mixed serum is made after heating,
Mixed serum is put into beaker, beaker is put into vacuum oven, is 50 DEG C in temperature, vacuum degree is the condition of 100Pa
Enriched product is made in lower concentration for 24 hours.
The preparation of hybrid solid product: above-mentioned enriched product is put into paper money burning stove, and argon gas is full of into paper money burning stove, is increased
For in-furnace temperature to 700 DEG C, sintered product is made in quiescence in high temperature 2h, sintered product is put into grinder, mixed grinding crosses 100 mesh
Sieve obtains hybrid solid product.
The preparation of modification liquid: according to parts by weight, 8 parts of above-mentioned hybrid solid products, 16 parts of distilled water and 2 portions of lemons are weighed
In acid investment beaker, 80min is mixed with the revolving speed of 400r/min with agitating device, mixed liquor is made, is added into beaker mixed
The copper powder for closing liquid quality 4%, places the beaker in sonic oscillation instrument, and oscillation 3h, which is made, under conditions of frequency is 32kHz is modified
Liquid.
The preparation of mixed glue solution: filter cake is obtained by filtration in above-mentioned modification liquid, successively cleans filter with dehydrated alcohol and distilled water
Cake 3 times, filter cake is placed in reaction kettle, increases temperature in the kettle to 110 DEG C, constant temperature stands 3h, and pre product is made after standing, will
Mixed glue solution is uniformly made in pre product and methyl acrylate 1:3 in mass ratio investment blender and mixing.
The preparation of insulation high-temperature-resistant battery wrapping film: above-mentioned mixed glue solution is uniformly applied to thin with a thickness of 20 μm of nylon
It on film, then places with a thickness of 35 μm of aluminium foil on nylon film, this product is placed in hot press, is 70 DEG C in temperature, pressure
Pressure processed suppresses 2h under conditions of being 5MPa, and after compacting in investment baking oven, dry 2h, discharging are under conditions of temperature is 70 DEG C
Obtain insulation high-temperature-resistant battery wrapping film.
The preparation of reacting slurry: corn stover and soybean particle 3:1 in mass ratio are put into baking oven, are 80 DEG C in temperature
Under conditions of dry 13h, put into grinder and grind after dry, cross 50 meshes and obtain sieving, by sieving and mass fraction
It is put into three-necked flask for 7% hydrochloric acid 1:5 in mass ratio, 35min is mixed with the revolving speed of 350r/min with agitating device,
5h is stood after stirring, and reacting slurry is made.
The preparation of enriched product: the aluminum chloride powder of reacting slurry quality 4%, Jiang Sankou are put into Xiang Shangshu three-necked flask
Flask is placed in resistance heating set, increases jacket temperature to 90 DEG C, heated at constant temperature 110min, mixed serum is made after heating,
Mixed serum is put into beaker, beaker is put into vacuum oven, is 55 DEG C in temperature, vacuum degree is the condition of 110Pa
Enriched product is made in lower concentration 25h.
The preparation of hybrid solid product: above-mentioned enriched product is put into paper money burning stove, and argon gas is full of into paper money burning stove, is increased
For in-furnace temperature to 750 DEG C, sintered product is made in quiescence in high temperature 2h, sintered product is put into grinder, mixed grinding crosses 100 mesh
Sieve obtains hybrid solid product.
The preparation of modification liquid: according to parts by weight, 9 parts of above-mentioned hybrid solid products, 18 parts of distilled water and 2 portions of lemons are weighed
In acid investment beaker, 90min is mixed with the revolving speed of 450r/min with agitating device, mixed liquor is made, is added into beaker mixed
The copper powder for closing liquid quality 6%, places the beaker in sonic oscillation instrument, and oscillation 4h, which is made, under conditions of frequency is 34kHz is modified
Liquid.
The preparation of mixed glue solution: filter cake is obtained by filtration in above-mentioned modification liquid, successively cleans filter with dehydrated alcohol and distilled water
Cake 4 times, filter cake is placed in reaction kettle, increases temperature in the kettle to 115 DEG C, constant temperature stands 3h, and pre product is made after standing, will
Mixed glue solution is uniformly made in pre product and methyl acrylate 1:3 in mass ratio investment blender and mixing.
The preparation of insulation high-temperature-resistant battery wrapping film: above-mentioned mixed glue solution is uniformly applied to thin with a thickness of 30 μm of nylon
It on film, then places with a thickness of 40 μm of aluminium foil on nylon film, this product is placed in hot press, is 75 DEG C in temperature, pressure
Pressure processed suppresses 2h under conditions of being 5MPa, and after compacting in investment baking oven, dry 2h, discharging are under conditions of temperature is 80 DEG C
Obtain insulation high-temperature-resistant battery wrapping film.
The preparation of reacting slurry: corn stover and soybean particle 3:1 in mass ratio are put into baking oven, are 85 DEG C in temperature
Under conditions of dry 14h, put into grinder and grind after dry, cross 50 meshes and obtain sieving, by sieving and mass fraction
It is put into three-necked flask for 8% hydrochloric acid 1:5 in mass ratio, 40min is mixed with the revolving speed of 400r/min with agitating device,
6h is stood after stirring, and reacting slurry is made.
The preparation of enriched product: the aluminum chloride powder of reacting slurry quality 5%, Jiang Sankou are put into Xiang Shangshu three-necked flask
Flask is placed in resistance heating set, increases jacket temperature to 100 DEG C, heated at constant temperature 120min, mixed serum is made after heating,
Mixed serum is put into beaker, beaker is put into vacuum oven, is 60 DEG C in temperature, vacuum degree is the condition of 120Pa
Enriched product is made in lower concentration 26h.
The preparation of hybrid solid product: above-mentioned enriched product is put into paper money burning stove, and argon gas is full of into paper money burning stove, is increased
For in-furnace temperature to 800 DEG C, sintered product is made in quiescence in high temperature 3h, sintered product is put into grinder, mixed grinding crosses 100 mesh
Sieve obtains hybrid solid product.
The preparation of modification liquid: according to parts by weight, 10 parts of above-mentioned hybrid solid products, 20 parts of distilled water and 3 parts of lemons are weighed
Lemon acid is put into beaker, 100min is mixed with the revolving speed of 500r/min with agitating device, mixed liquor is made, add into beaker
The copper powder for entering mixed liquor quality 8% places the beaker in sonic oscillation instrument, and oscillation 5h, which is made, under conditions of frequency is 36kHz changes
Property liquid.
The preparation of mixed glue solution: filter cake is obtained by filtration in above-mentioned modification liquid, successively cleans filter with dehydrated alcohol and distilled water
Cake 5 times, filter cake is placed in reaction kettle, increases temperature in the kettle to 120 DEG C, constant temperature stands 4h, and pre product is made after standing, will
Mixed glue solution is uniformly made in pre product and methyl acrylate 1:3 in mass ratio investment blender and mixing.
The preparation of insulation high-temperature-resistant battery wrapping film: above-mentioned mixed glue solution is uniformly applied to thin with a thickness of 40 μm of nylon
It on film, then places with a thickness of 45 μm of aluminium foil on nylon film, this product is placed in hot press, is 80 DEG C in temperature, pressure
Pressure processed suppresses 3h under conditions of being 6MPa, and after compacting in investment baking oven, dry 3h, discharging are under the conditions of at a temperature of 90 °C
Obtain insulation high-temperature-resistant battery wrapping film.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that reacting slurry is not added.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that hybrid solid product is not added.
Comparative example 3: the packaging film of Huangshan company production.To insulation high-temperature-resistant battery outer packing produced by the present invention
Packaging film in film and comparative example is detected, and testing result is as shown in table 1: tensile strength test
By the packaging film in insulation high-temperature-resistant battery wrapping film produced by the present invention and comparative example be cut into respectively having a size of
The sample of 210mm × 15mm, sample size 18, clamp of stretching tester spacing is 100mm, is measured and is stretched with cupping machine
Intensity is averaged the coupon results as the sample.
Heat stability testing divides the packaging film in insulation high-temperature-resistant battery wrapping film produced by the present invention and comparative example
It is not cut into the sample having a size of 10mm × 10mm, experimental temperature is 200 DEG C, time 30min.
Barrier properties for gases is tested according to standard GB/T1038-2000 " plastic film and thin slice gas-premeable test method
Pressure differential method " it is measured.
Determination of resistivity is tested referring to standard GB/T/T1410-2006.
Dielectric constant measurement is tested referring to standard GB/T/T1409-2006.
1 performance measurement result of table
According to data in table 1 it is found that insulation high-temperature-resistant battery wrapping film produced by the present invention, there is high mechanical strength, closed
The features such as property is strong, high temperature resistance is good, excellent insulation performance, and manufacturing cost is cheap, can promote intelligent electronic device into
One step popularizes, and is conducive to the market application prospect for improving intelligent electronic device, is of great practical significance.
Claims (8)
1. a kind of preparation method of insulation high-temperature-resistant battery wrapping film, it is characterised in that specific preparation step are as follows:
Mixed glue solution is uniformly applied on the nylon film with a thickness of 20~40 μm, then place on nylon film with a thickness of 35~
This product is placed in hot press by 45 μm of aluminium foil, is 70~80 DEG C in temperature, compacting pressure is pressed under conditions of being 5~6MPa
2~3h is made, is put into baking oven after compacting, dry 2~3h, discharges up to insulation high-temperature-resistant under conditions of temperature is 70~90 DEG C
Battery wrapping film；
The specific preparation step of the mixed glue solution are as follows:
(1) it weighs in hybrid solid product, distilled water and citric acid investment beaker, with agitating device with 400~500r/min's
Revolving speed is mixed 80~100min and mixed liquor is made, and copper powder is added into beaker, places the beaker in sonic oscillation instrument, in frequency
Modification liquid is made in 3~5h of oscillation under conditions of rate is 32~36kHz；
(2) filter cake is obtained by filtration in modification liquid, is successively cleaned filter cake 3~5 times with dehydrated alcohol and distilled water, filter cake is placed in instead
Answer in kettle, increase temperature in the kettle to 110~120 DEG C, constant temperature stands 3~4h, pre product is made after standing, by pre product with
Methyl acrylate puts into blender and mixing and mixed glue solution is uniformly made；
The specific preparation step of the hybrid solid product are as follows:
(1) by corn stover and soybean particle investment baking oven, dry 12~14h, is done under conditions of temperature is 75~85 DEG C
It is ground in investment grinder after dry, crosses 50 meshes and obtain sieving, the hydrochloric acid investment three for being 6~8% by sieving and mass fraction
In mouth flask, 30~40min is mixed with the revolving speed of 300~400r/min with agitating device, 4~6h is stood after stirring and is made
Reacting slurry；
(2) aluminum chloride powder is put into three-necked flask, and three-necked flask is placed in resistance heating set, increases jacket temperature extremely
80~100 DEG C, 100~120min of heated at constant temperature, mixed serum is made after heating, mixed serum is put into beaker, by beaker
It is put into vacuum oven, is 50~60 DEG C in temperature, 24~26h of concentration is made dense under conditions of vacuum degree is 100~120Pa
Contracting product；
(3) enriched product is put into baking furnace, argon gas is full of into baking furnace, raising in-furnace temperature is high to 700~800 DEG C
Temperature stands 2~3h and sintered product is made, and sintered product is put into grinder, mixed grinding sieves with 100 mesh sieve to obtain hybrid solid
Product.
2. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
In the specific preparation step (1) of glue preferably according to parts by weight, the hybrid solid product is 8~10 parts, distilled water
It is 2~3 parts for 16~20 parts, citric acid.
3. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
The quality for the copper powder being added described in the specific preparation step (1) of glue into beaker is the 4~8% of mixed liquor quality.
4. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
The mass ratio of pre product described in the specific preparation step (2) of glue and methyl acrylate is 1:3.
5. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
The mass ratio of corn stover described in the specific preparation step (1) of solid product and soybean particle is 3:1.
6. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
The mass ratio for the hydrochloric acid that sieving described in the specific preparation step (1) of solid product and mass fraction are 6~8% is 1:5.
7. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
The quality of the aluminum chloride powder put into described in the specific preparation step (2) of solid product into three-necked flask is reacting slurry
The 3~5% of quality.
8. a kind of preparation method of insulation high-temperature-resistant battery wrapping film according to claim 1, it is characterised in that: mixing
Firing temperature in baking furnace described in the specific preparation step (3) of solid product can further be preferably 750~760
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910126625.5A CN109910420A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of insulation high-temperature-resistant battery wrapping film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126625.5A CN109910420A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of insulation high-temperature-resistant battery wrapping film |
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| CN109910420A true CN109910420A (en) | 2019-06-21 |
Family
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069785Y (en) * | 2006-09-04 | 2008-06-04 | 徐立球 | Soft packing film of lithium battery core |
| CN102602081A (en) * | 2012-03-16 | 2012-07-25 | 东莞市恒雅包装材料有限公司 | Anti-corrosion, anti-puncture and anti-short circuit melting through aluminum-plastic packaging film for lithium battery and manufacture method thereof |
| CN109096563A (en) * | 2018-09-08 | 2018-12-28 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of high intensity filled rubber |
-
2019
- 2019-02-20 CN CN201910126625.5A patent/CN109910420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069785Y (en) * | 2006-09-04 | 2008-06-04 | 徐立球 | Soft packing film of lithium battery core |
| CN102602081A (en) * | 2012-03-16 | 2012-07-25 | 东莞市恒雅包装材料有限公司 | Anti-corrosion, anti-puncture and anti-short circuit melting through aluminum-plastic packaging film for lithium battery and manufacture method thereof |
| CN109096563A (en) * | 2018-09-08 | 2018-12-28 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of high intensity filled rubber |
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Application publication date: 20190621 |