CN107611322A - A kind of High-strength lithium battery diaphragm and its production technology - Google Patents
A kind of High-strength lithium battery diaphragm and its production technology Download PDFInfo
- Publication number
- CN107611322A CN107611322A CN201710724559.2A CN201710724559A CN107611322A CN 107611322 A CN107611322 A CN 107611322A CN 201710724559 A CN201710724559 A CN 201710724559A CN 107611322 A CN107611322 A CN 107611322A
- Authority
- CN
- China
- Prior art keywords
- ketone
- ether
- polyether
- lithium battery
- battery diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Abstract
The present invention discloses a kind of High-strength lithium battery diaphragm and its production technology, halo first ketone compounds and double hydroxy kind compounds are put into solvent the synthesis of polyether-ether-ketone in the presence of carbonate, the polyether-ether-ketone nano fibrous membrane obtained through melting extrusion stretches to form High-strength lithium battery diaphragm at high temperature.Its load heat distortion temperature of polyether-ether-ketone is up to 316 DEG C, instantaneous temperature in use has excellent chemical stability, can meet requirement of the lithium battery diaphragm to chemical resistance and high-intensity performance up to 300 DEG C, the life-span that lithium battery diaphragm uses can be extended well, while improve its security；The High-strength lithium battery diaphragm of preparation has smaller aperture due, larger specific surface area, high anti-tearing strength, high anti-puncture intensity, high anti-electric breakdown strength, the advantages of chemical stability is good.
Description
Technical field
The present invention relates to technical field of lithium batteries, and in particular to a kind of High-strength lithium battery diaphragm and its production technology.
Background technology
Lithium battery develops rapidly in recent years, but the security of lithium battery and high-performance are always that the key for restricting its development is asked
Topic.Barrier film is the electrical insulating property film for having loose structure, main function be isolate positive and negative electrode and prevent electronics in battery from
Pass freely through, while electrolyte solution intermediate ion can be allowed to be passed freely through in positive and negative interpolar.Its performance determines the interface knot of battery
Structure, internal resistance etc., directly affect the characteristics such as capacity, the cycle performance of battery.
Occurs the technology that temperature-resistant material is coated on polyolefin substrate barrier film on existing market, although there is coating PVDF to apply
Layer, but be more that coating applies ceramic layer.Utilize existing dry method lithium ion battery separator (simple tension PP, PE and two-way
Asynchronous stretching PP, bi-directional synchronization stretching PE) water-soluble nano ceramic solution, low temperature drying (40~60 are directly coated with thereon
DEG C), but ceramic coating can not form an organic whole with base material polyolefin micropore barrier diaphragm, especially ceramic and polyolefin
The combination interface intensity of film is very weak, causes ceramic coating partial exfoliation (coating hole, splitting) or large area comes off；And
This ceramic coating lithium ion battery separator is because interface cohesion loosely produces many powder in cutting；The problem of the most serious
It is that, when inside battery is when ceramic coating and base polyolefin UF membrane, electrolyte is enriched between interlayer, causes cell deformation,
If ceramic coating comes off in inside battery from matrix, not only without improve lithium ion battery separator security, on the contrary because
The ceramic nano powder piece that comes off and have impact on the electrical property of lithium ion battery.Therefore barrier film need to have high ion percent of pass, high
The mechanical performance of intensity, chemically stable property etc..
The content of the invention
It is an object of the invention to provide a kind of High-strength lithium battery diaphragm and its production technology, synthesis is obtained high-purity
The polyether-ether-ketone of degree is sent into screw extruder, and the polyether-ether-ketone nano fibrous membrane obtained through melting extrusion stretches to be formed at high temperature
High-strength lithium battery diaphragm, have high tearing toughness, anti-puncture intensity and anti-electric breakdown strength, chemical stability excellent.
The purpose of the present invention can be achieved through the following technical solutions：
Halo first ketone compounds and double hydroxy kind compounds are put into solvent the synthesizing polyether in the presence of carbonate
Ether ketone, the polyether-ether-ketone nano fibrous membrane obtained through melting extrusion stretch to form High-strength lithium battery diaphragm at high temperature；It is described
Polyether-ether-ketone structure such as following formula (1) shown in：
Wherein, R1Introduced for double hydroxy kind compounds, R2、R3Introduced for aromatic series halo first ketone compounds；N is polymerization
Thing number of repeat unit, between 300 to 700.
Further, described halo first ketone compounds are aromatic series halo ketone；Described double hydroxy kind compounds are
The double hydroxyls of aliphatic, semi-aromatic double hydroxyl, aromatic bisphenols.
Further, described aromatic series halo ketone be 3,3'- dimethyl -4,4'- difluoro benzophenone, 2- diphenyl -
One kind in chloro- 4, the 4'- difluoro benzophenones of 4,4'- difluoro benzophenones, 3-, 5- isopropyl -4,4'- difluoro benzophenones.
Further, the double hydroxyls of described aliphatic are 1,3-PD, 1,2- heptandiols, 2- methyl isophthalic acids, and 4- butanediols are excellent
Elect 2- methyl isophthalic acids, 4- butanediols as；The double hydroxyls of described semi-aromatic are 4- methylols p-cresol, 4- ethoxys to toluene
Phenol, preferably 4- ethoxys p-cresol；Described aromatic bisphenols are 1,3- dimethyl hydroquinones, 1,6- dichloros to benzene two
One kind in phenol.
Further, described solvent is one or both of 1,1- sulphonyl double benzene, tetramethylene sulfones；Described carbonate
For nano-calcium carbonate magnesium.
Further, described halo first ketone compounds, double hydroxy kind compounds, carbonate, the mol ratio of solvent are
1.1-1.23:1:2.6-4.5:2.4-3.8。
A kind of production technology of high-strength magnesium battery diaphragm, specifically includes following steps：
(1) preparation of polyether-ether-ketone
Halo first ketone compounds, double hydroxy kind compounds, the solvent for weighing mol ratio are added in reactor, side stirring
Side leads to nitrogen and heat temperature raising, after all dissolving, adds carbonate, heats up and be incubated, afterwards heating and heat preservation again, is polymerize
Mucus, pour into rapidly in distilled water and be stirred continuously, obtain polyether-ether-ketone crude product particle；Polyether-ether-ketone crude product is anti-using acetone
Multiple extraction, to remove solvent, then with nitric acid wash polyether-ether-ketone, with a small amount of fluoride salt generated except dereaction, finally with distilling
Water washing, to remove nitric acid, polyether-ether-ketone is obtained after drying；
(2) preparation of polyether-ether-ketone nano fibrous membrane
Dried polyether-ether-ketone is put into screw extruder by melting extrusion, it is right after coagulating net through hot blast drawing-off, cooling
It is meltblown polyphenylene sulfide superfine fiber net and carries out hot rolling treatment, carries out thermal finalization processing afterwards, obtain polyether-ether-ketone nano fibrous membrane；
(3) preparation of High-strength lithium battery diaphragm
Polyether-ether-ketone nano fibrous membrane is sent into high-temperature burner hearth, cross directional stretch；Exit is wound, and longitudinal drawing-off, that is, is obtained
High-strength lithium battery diaphragm.
Further, the extraction times described in step (1) are 3-6 times；Described nitric acid washing times are 1-2 times；Described
Distilled water washing times are 6-10 times.
Further, the hot-rolled temperature described in step (2) is 90~120 DEG C, and hot rolling pressure is 0.26~0.55MPa, hot rolling
Time is 15~40s.
Further, draw ratio during cross directional stretch described in step (3) is 3-5 times, and longitudinal draw ratio is 6-8 times.
Further, in the High-strength lithium battery diaphragm described in step (3) fibre diameter be 80-200nm, film thickness 15-
20 μm, membrane porosity 45%-62%, surface density 17.5-19.6g/m2, film tearing toughness be 615.6-
822.3MPa, the anti-puncture intensity of film are 18.5-22.5N, the electric breakdown strength of film is 95-108kV/mm.
Beneficial effects of the present invention：
Compared with prior art, halo first ketone compounds and double hydroxy kind compounds are put into solvent by the present invention first
Special polyether-ether-ketone, high purity 99.9% are synthesized in the presence of carbonate；Its load heat distortion temperature of polyether-ether-ketone is high
Up to 316 DEG C, instantaneous temperature in use has excellent chemical stability up to 300 DEG C, can meet that lithium battery diaphragm is rotten to chemically-resistant
The requirement of corrosion and high-intensity performance, the life-span that lithium battery diaphragm uses can be extended well, while improve its security；Pass through
The polyether-ether-ketone nano fibrous membrane that melting extrusion obtains stretches to form High-strength lithium battery diaphragm at high temperature, and fiber is straight in barrier film
Footpath is 80-200nm, film thickness is 15-20 μm, membrane porosity 45%-62%, surface density 17.5-19.6g/m2, film it is anti-
Tearing strength is 615.6-822.3MPa, the anti-puncture intensity of film is 18.5-22.5N, the electric breakdown strength of film is 95-108kV/
mm.The High-strength lithium battery diaphragm of preparation has smaller aperture due, larger specific surface area, high anti-tearing strength, high anti-puncture strong
Degree, high anti-electric breakdown strength, the advantages of chemical stability is good.
Embodiment
The technical scheme in the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described
Embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Embodiment 1
(1) preparation of polyether-ether-ketone
Weigh 23.1kg 3,3'- dimethyl -4,4'- difluoro benzophenones, 10.4kg 2- methyl isophthalic acids, 4- butanediols,
The double benzene of 52.3kg 1,1- sulphonyl are added in reactor, are led to nitrogen while stirring and are heated to 150 DEG C, treat whole dissolvings
Afterwards, 25.2kg nano-calcium carbonate magnesium is added, is warming up to 230 DEG C of insulation 2h, 310 DEG C of insulation 20min is warming up to again afterwards, is polymerize
Mucus, pour into rapidly in distilled water and be stirred continuously, obtain polyether-ether-ketone crude product particle.Polyether-ether-ketone crude product is anti-using acetone
Extract 3 times again, use 1L acetone every time, to remove solvent diphenyl sulphone (DPS), then with 30% nitric acid wash polyether-ether-ketone 2 times, with except
A small amount of magnesium fluoride of dereaction generation, finally with water washing is distilled 10 times, 500ml distilled water is used every time, to remove nitric acid, dried
Polyether-ether-ketone, purity 99.8% are obtained after dry.
(2) preparation of polyether-ether-ketone nano fibrous membrane
Dried polyether-ether-ketone is put into screw extruder by melting extrusion, it is right after coagulating net through hot blast drawing-off, cooling
It is meltblown polyphenylene sulfide superfine fiber net and carries out hot rolling treatment, temperature is 90 DEG C, and hot rolling pressure is 0.26MPa, and the hot rolling time is
15s；Thermal finalization processing is carried out afterwards, obtains polyether-ether-ketone nano fibrous membrane.
(3) preparation of High-strength lithium battery diaphragm
Polyether-ether-ketone nano fibrous membrane is sent into temperature as 300 DEG C of high-temperature burner hearth using 0.4m/min speed, laterally led
Stretch and stop since porch at the 10m in high-temperature burner hearth, draw ratio during cross directional stretch is 3 times；Exit is with 1.5m/
Min speed winding, longitudinal draw ratio is 6 times, that is, obtains High-strength lithium battery diaphragm.After tested, High-strength lithium battery diaphragm
Middle fibre diameter is 80nm, film thickness is 17 μm, membrane porosity 45%, surface density 18.6g/m2, film tearing toughness
Anti-puncture intensity for 615.6MPa, film is 22.5N, the electric breakdown strength of film is 95kV/mm.
Embodiment 2
(1) preparation of polyether-ether-ketone
Weigh 26.3kg 2- diphenyl -4,4'- difluoro benzophenones, 13.5kg 4- ethoxys p-cresol, 45.6kg
Tetramethylene sulfone is added in reactor, is led to nitrogen while stirring and is heated to 150 DEG C, after all dissolving, adds
37.8kg nano-calcium carbonate magnesium, 230 DEG C of insulation 2h are warming up to, are warming up to 310 DEG C of insulation 20min again afterwards, obtain polymerizeing mucus, it is fast
Speed is poured into distilled water and is stirred continuously, and obtains polyether-ether-ketone crude product particle.Polyether-ether-ketone crude product is extracted 6 repeatedly using acetone
It is secondary, 1L acetone is used every time, to remove solvent tetramethylene sulfone, then with 30% nitric acid washs polyether-ether-ketone 1 time, it is anti-to remove
The a small amount of magnesium fluoride that should be generated, finally with water washing is distilled 6 times, 500ml distilled water is used every time, to remove nitric acid, after drying
Obtain polyether-ether-ketone, purity 99.9%.
(2) preparation of polyether-ether-ketone nano fibrous membrane
Dried polyether-ether-ketone is put into screw extruder by melting extrusion, it is right after coagulating net through hot blast drawing-off, cooling
It is meltblown polyphenylene sulfide superfine fiber net and carries out hot rolling treatment, temperature is 120 DEG C, and hot rolling pressure is 0.55MPa, and the hot rolling time is
40s；Thermal finalization processing is carried out afterwards, obtains polyether-ether-ketone nano fibrous membrane.
(3) preparation of High-strength lithium battery diaphragm
Polyether-ether-ketone nano fibrous membrane is sent into temperature as 300 DEG C of high-temperature burner hearth using 0.4m/min speed, laterally led
Stretch and stop since porch at the 10m in high-temperature burner hearth, draw ratio during cross directional stretch is 4 times；Exit is with 1.5m/
Min speed winding, longitudinal draw ratio is 5 times, that is, obtains High-strength lithium battery diaphragm.After tested, High-strength lithium battery diaphragm
Middle fibre diameter is 200nm, film thickness is 20 μm, membrane porosity 56%, surface density 17.5g/m2, film tearing toughness
Anti-puncture intensity for 822.3MPa, film is 18.5N, the electric breakdown strength of film is 108kV/mm.
Embodiment 3
(1) preparation of polyether-ether-ketone
Weigh chloro- 4, the 4'- difluoro benzophenones of 22.4kg 3-, 17.8kg 1,3- dimethyl hydroquinones, 35.9kg 1,
The double benzene of 1- sulphonyl, 24.6kg tetramethylene sulfones are added in reactor, are led to nitrogen while stirring and are heated to 150 DEG C, treat
All after dissolving, 30.2kg rice magnesium carbonate is received in addition, is warming up to 230 DEG C of insulation 2h, is warming up to 310 DEG C of insulation 20min again afterwards,
Obtain polymerizeing mucus, pour into rapidly in distilled water and be stirred continuously, obtain polyether-ether-ketone crude product particle.Polyether-ether-ketone crude product is made
Extracted repeatedly with acetone 5 times, use 1L acetone every time, to remove solvent 1,1- sulphonyl double benzene, tetramethylene sulfones, then with 30%
Nitric acid washing polyether-ether-ketone 1 time, with a small amount of magnesium fluoride generated except dereaction, finally with water washing is distilled 8 times, use every time
500ml distilled water, to remove nitric acid, polyether-ether-ketone, purity 99.9% are obtained after drying.
(2) preparation of polyether-ether-ketone nano fibrous membrane
Dried polyether-ether-ketone is put into screw extruder by melting extrusion, it is right after coagulating net through hot blast drawing-off, cooling
It is meltblown polyphenylene sulfide superfine fiber net and carries out hot rolling treatment, temperature is 98 DEG C, and hot rolling pressure is 0.36MPa, and the hot rolling time is
21s；Thermal finalization processing is carried out afterwards, obtains polyether-ether-ketone nano fibrous membrane.
(3) preparation of High-strength lithium battery diaphragm
Polyether-ether-ketone nano fibrous membrane is sent into temperature as 300 DEG C of high-temperature burner hearth using 0.4m/min speed, laterally led
Stretch and stop since porch at the 10m in high-temperature burner hearth, draw ratio during cross directional stretch is 6 times；Exit is with 1.5m/
Min speed winding, longitudinal draw ratio is 6 times, that is, obtains High-strength lithium battery diaphragm.After tested, High-strength lithium battery diaphragm
Middle fibre diameter is 105nm, film thickness is 15 μm, membrane porosity 62%, surface density 18.3g/m2, film tearing toughness
Anti-puncture intensity for 765.7MPa, film is 19.2N, the electric breakdown strength of film is 99kV/mm.
Embodiment 4
(1) preparation of polyether-ether-ketone
Weigh 23.8kg 5- isopropyls -4,4'- difluoro benzophenone, the chlorohydroquinone of 13.6kg 1,6- bis-, 23.4kg
The double benzene of 1,1- sulphonyl, 36.1kg tetramethylene sulfones are added in reactor, are led to nitrogen while stirring and are heated to 150 DEG C,
After all dissolving, 28.1kg nano-calcium carbonate magnesium is added, 230 DEG C of insulation 2h is warming up to, is warming up to 310 DEG C of insulations again afterwards
20min, obtain polymerizeing mucus, pour into rapidly in distilled water and be stirred continuously, obtain polyether-ether-ketone crude product particle.By polyether-ether-ketone
Crude product is extracted 4 times repeatedly using acetone, uses 1L acetone every time, to remove solvent 1,1- sulphonyl double benzene, tetramethylene sulfones, then is used
30% nitric acid washing polyether-ether-ketone 2 times, with a small amount of magnesium fluoride generated except dereaction, finally uses distillation water washing 9 times, every time
Using 500ml distilled water, to remove nitric acid, polyether-ether-ketone, purity 99.9% are obtained after drying.
(2) preparation of polyether-ether-ketone nano fibrous membrane
Dried polyether-ether-ketone is put into screw extruder by melting extrusion, it is right after coagulating net through hot blast drawing-off, cooling
It is meltblown polyphenylene sulfide superfine fiber net and carries out hot rolling treatment, temperature is 116 DEG C, and hot rolling pressure is 0.51MPa, and the hot rolling time is
33s；Thermal finalization processing is carried out afterwards, obtains polyether-ether-ketone nano fibrous membrane.
(3) preparation of High-strength lithium battery diaphragm
Polyether-ether-ketone nano fibrous membrane is sent into temperature as 300 DEG C of high-temperature burner hearth using 0.4m/min speed, laterally led
Stretch and stop since porch at the 10m in high-temperature burner hearth, draw ratio during cross directional stretch is 5 times；Exit is with 1.5m/
Min speed winding, longitudinal draw ratio is 8 times, that is, obtains High-strength lithium battery diaphragm.After tested, High-strength lithium battery diaphragm
Middle fibre diameter is 156nm, film thickness is 16.8 μm, membrane porosity 52%, surface density 19.6g/m2, film tear-proof it is strong
The anti-puncture intensity spent for 813.5MPa, film is 18.6N, the electric breakdown strength of film is 101kV/mm.
Above content is only to design example and explanation of the invention, affiliated those skilled in the art
Various modifications or supplement are made to described specific embodiment or is substituted using similar mode, without departing from invention
Design or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (10)
- A kind of 1. High-strength lithium battery diaphragm, it is characterised in that：Halo first ketone compounds and double hydroxy kind compounds are put into In solvent in the presence of carbonate synthesis of polyether-ether-ketone, the polyether-ether-ketone nano fibrous membrane obtained through melting extrusion is at high temperature Stretching forms High-strength lithium battery diaphragm；Shown in described polyether-ether-ketone structure such as following formula (1)：Wherein, R1Introduced for double hydroxy kind compounds, R2、R3Introduced for aromatic series halo first ketone compounds；N is polymer weight Multiple unit number, between 300 to 700.
- A kind of 2. High-strength lithium battery diaphragm according to claim 1, it is characterised in that：Described halo ketone class chemical combination Thing is aromatic series halo ketone；Described double hydroxy kind compounds are the double hydroxyls of aliphatic, the double hydroxyls of semi-aromatic, aromatic series pair Phenol.
- A kind of 3. High-strength lithium battery diaphragm according to claim 2, it is characterised in that：Described aromatic series halo ketone For 3,3'- dimethyl -4,4'- difluoro benzophenone, 2- diphenyl -4,4'- difluoro benzophenone, chloro- 4, the 4'- difluorodiphenyls of 3- One kind in ketone, 5- isopropyl -4,4'- difluoro benzophenones.
- A kind of 4. High-strength lithium battery diaphragm according to claim 2, it is characterised in that：The double hydroxyls of described aliphatic are 1,3-PD, 1,2- heptandiols, 2- methyl isophthalic acids, preferably 4- butanediols, 2- methyl isophthalic acids, 4- butanediols；Described semiaromatic The double hydroxyls of race are 4- methylols p-cresol, preferably 4- ethoxy p-cresols, 4- ethoxys p-cresol；Described fragrance Race's bis-phenol is one kind in 1,3- dimethyl hydroquinones, the chlorohydroquinones of 1,6- bis-.
- A kind of 5. High-strength lithium battery diaphragm according to claim 1, it is characterised in that：Described solvent is 1,1- sulphonyl One or both of double benzene, tetramethylene sulfone；Described carbonate is nano-calcium carbonate magnesium.
- A kind of 6. High-strength lithium battery diaphragm according to claim 1, it is characterised in that：Described halo ketone class chemical combination Thing, double hydroxy kind compounds, carbonate, the mol ratio of solvent are 1.1-1.23:1:2.6-4.5：2.4-3.8.
- A kind of 7. production technology of high-strength magnesium battery diaphragm, it is characterised in that：Specifically include following steps：(1) preparation of polyether-ether-ketoneHalo first ketone compounds, double hydroxy kind compounds, the solvent for weighing mol ratio are added in reactor, are led to while stirring Nitrogen and heat temperature raising, after all dissolving, carbonate is added, heats up and is incubated, afterwards heating and heat preservation again, it is viscous to obtain polymerization Liquid, pour into rapidly in distilled water and be stirred continuously, obtain polyether-ether-ketone crude product particle；Polyether-ether-ketone crude product is used into acetone repeatedly Extraction, then polyether-ether-ketone is washed with nitric acid, finally with distillation water washing, polyether-ether-ketone is obtained after drying；(2) preparation of polyether-ether-ketone nano fibrous membraneDried polyether-ether-ketone is put into screw extruder by melting extrusion, through hot blast drawing-off, cooling, after coagulating net, to melt-blown Polyphenylene sulfide superfine fiber net carries out hot rolling treatment, carries out thermal finalization processing afterwards, obtains polyether-ether-ketone nano fibrous membrane；(3) preparation of High-strength lithium battery diaphragmPolyether-ether-ketone nano fibrous membrane is sent into high-temperature burner hearth, cross directional stretch；Exit is wound, and longitudinal drawing-off, that is, is obtained high-strength Spend lithium battery diaphragm.
- A kind of 8. production technology of High-strength lithium battery diaphragm according to claim 7, it is characterised in that：Step (1) institute The extraction times stated are 3-6 times；Described nitric acid washing times are 1-2 times；Described distilled water washing times are 6-10 times.
- A kind of 9. production technology of High-strength lithium battery diaphragm according to claim 7, it is characterised in that：Step (2) institute The hot-rolled temperature stated is 90~120 DEG C, and hot rolling pressure is 0.26~0.55MPa, and the hot rolling time is 15~40s.
- A kind of 10. production technology of High-strength lithium battery diaphragm according to claim 7, it is characterised in that：Step (3) institute The draw ratio during cross directional stretch stated is 3-5 times, and longitudinal draw ratio is 6-8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710724559.2A CN107611322A (en) | 2017-08-22 | 2017-08-22 | A kind of High-strength lithium battery diaphragm and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710724559.2A CN107611322A (en) | 2017-08-22 | 2017-08-22 | A kind of High-strength lithium battery diaphragm and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107611322A true CN107611322A (en) | 2018-01-19 |
Family
ID=61065642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710724559.2A Pending CN107611322A (en) | 2017-08-22 | 2017-08-22 | A kind of High-strength lithium battery diaphragm and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107611322A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184744A (en) * | 2019-05-09 | 2019-08-30 | 吉林大学 | A kind of crystal type poly(aryl ether ketone) nano fibrous membrane, preparation method and applications |
| CN113105661A (en) * | 2021-03-30 | 2021-07-13 | 河北金力新能源科技股份有限公司 | Polyether-ether-ketone diaphragm and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942177A (en) * | 2010-08-20 | 2011-01-12 | 陈逊 | Manufacturing method of polyether-ether-ketone thin film |
| CN103147253A (en) * | 2013-03-05 | 2013-06-12 | 中国科学院理化技术研究所 | High-strength polyimide nano fiber porous membrane, and preparation method and application thereof |
| EP2532038B1 (en) * | 2010-02-02 | 2016-03-16 | Commissariat à l'Énergie Atomique et aux Énergies Alternatives | Electrochemical accumulator with packaging comprising at least one polyaryletherketone (paek), and associated film and methods |
| CN106432651A (en) * | 2016-09-27 | 2017-02-22 | 枣阳市华威硅氟材料有限公司 | Preparation method of polyether-ether-ketone |
-
2017
- 2017-08-22 CN CN201710724559.2A patent/CN107611322A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2532038B1 (en) * | 2010-02-02 | 2016-03-16 | Commissariat à l'Énergie Atomique et aux Énergies Alternatives | Electrochemical accumulator with packaging comprising at least one polyaryletherketone (paek), and associated film and methods |
| CN101942177A (en) * | 2010-08-20 | 2011-01-12 | 陈逊 | Manufacturing method of polyether-ether-ketone thin film |
| CN103147253A (en) * | 2013-03-05 | 2013-06-12 | 中国科学院理化技术研究所 | High-strength polyimide nano fiber porous membrane, and preparation method and application thereof |
| CN106432651A (en) * | 2016-09-27 | 2017-02-22 | 枣阳市华威硅氟材料有限公司 | Preparation method of polyether-ether-ketone |
Non-Patent Citations (1)
| Title |
|---|
| WENLEI LI: "preparation and characterization of high-strength peek films", 《JOURNAL OF APPLIED POLYMER SCIENCE》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110184744A (en) * | 2019-05-09 | 2019-08-30 | 吉林大学 | A kind of crystal type poly(aryl ether ketone) nano fibrous membrane, preparation method and applications |
| CN110184744B (en) * | 2019-05-09 | 2022-01-21 | 吉林大学 | Crystalline polyaryletherketone nanofiber membrane, and preparation method and application thereof |
| CN113105661A (en) * | 2021-03-30 | 2021-07-13 | 河北金力新能源科技股份有限公司 | Polyether-ether-ketone diaphragm and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Improved performance of PVdF-HFP/PI nanofiber membrane for lithium ion battery separator prepared by a bicomponent cross-electrospinning method | |
| CN106567274B (en) | A method of preparing aramid paper with p-aramid fiber nanofiber | |
| CN104157815B (en) | A kind of Bacterial cellulose porous membrane and preparation method thereof | |
| JP6078562B2 (en) | Lithium-containing battery cathode and method for producing the same without solvent | |
| CN103806281B (en) | Carbon fiber surface grafting hyperbranched poly glycerine improves the method for composite material interface performance | |
| CN103383996B (en) | Preparation method of polyimide micro-pore diaphragm | |
| CN102947499A (en) | Porous nanoweb and method for manufacturing the same | |
| CN103537205B (en) | A kind of aramid fiber III/polyvinyl alcohol blending gas separation membrane and preparation method thereof | |
| CN106283659A (en) | A kind of preparation method of electric-conducting polyimide fiber material | |
| Tan et al. | Dissolving and regeneration of meta-aramid paper: Converting loose structure into consolidated networks with enhanced mechanical and insulation properties | |
| CN107611322A (en) | A kind of High-strength lithium battery diaphragm and its production technology | |
| JP2008240222A (en) | Method for producing omni-meta aromatic polysulfonamide fiber | |
| Gong et al. | Thermosensitive polyacrylonitrile/polyethylene oxide/polyacrylonitrile membrane separators for prompt and safer thermal lithium-ion battery shutdown | |
| CN104211056B (en) | A kind of preparation method of high strength graphite alkene film | |
| CN106450115B (en) | Inorganic coating bacteria cellulose porous membrane and preparation method thereof | |
| CN108774808B (en) | Polyimide nanofiber membrane with cross-linked appearance and zirconium dioxide coated surface and preparation method thereof | |
| WO2016110113A1 (en) | Method of preparing lithium ion battery negative electrode sheet using carbon fiber cloth as matrix | |
| CN104761717B (en) | A kind of PAEK quadripolymer and preparation method thereof | |
| CN102487131A (en) | Multilayer battery separator and method for manufacturing same | |
| CN104448365B (en) | It is a kind of prepare epoxidized vegetable oil it is epoxy resin toughened/method of cellulose composite membrane | |
| CN103951976B (en) | Nano core-shell particle/polyimide composite film and its preparation method and application | |
| CN107742688A (en) | A kind of polyolefin lithium electric separator and preparation method thereof | |
| CN109167007A (en) | Heat-resisting lithium ion battery coated separator and preparation method thereof | |
| Watanabe et al. | Anion conductive polymer nanofiber composite membrane: effects of nanofibers on polymer electrolyte characteristics | |
| Zhou et al. | Interfacial assembly and electrochemical properties of nafion-modified-graphene/polyaniline hollow spheres |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |