CN110137416A - A kind of polyolefin lithium electric separator preparation method - Google Patents
A kind of polyolefin lithium electric separator preparation method Download PDFInfo
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- CN110137416A CN110137416A CN201910403265.9A CN201910403265A CN110137416A CN 110137416 A CN110137416 A CN 110137416A CN 201910403265 A CN201910403265 A CN 201910403265A CN 110137416 A CN110137416 A CN 110137416A
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- Prior art keywords
- polymethyl methacrylate
- lithium electric
- electric separator
- coating
- polyolefin
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- 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
-
- 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
-
- 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
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
-
- 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 invention discloses a kind of polyolefin lithium electric separator preparation methods, using porous polyolefin diaphragm as matrix, for the unilateral or bilateral of the polyalkene diaphragm coated with modified polymethyl methacrylate (PMMA) organic matter coating, the polymethyl methacrylate organic matter of the modification is inorganic oxide nanoparticles and the organic matter that polymethyl methacrylate is combined.The present invention problem lower for existing polypropylene or polyethylene porous separator high temperature integrity, and the problems such as existing polypropylene or polyethylene film poor to electrolyte wellability, a kind of polyolefin lithium electric separator is provided, PMMA in coating, there is good swellability in the common esters electrolyte of lithium battery, therefore, there is good imbibition rate and lithium ion conduction performance.In addition, the inorganic oxide nanoparticles in coating, can effectively prevent PMMA swelling from diaphragm impedance being caused to increase in battery use process, therefore, there is good cycle performance.
Description
Technical field
The present invention relates to new energy materials fields, and in particular to a kind of polyolefin lithium electric separator and preparation method thereof.
Background technique
Diaphragm is lithium battery core, not only absorbed electrolyte and for lithium ion provide micropore migration channel, simultaneously
Also play the key effect for acting through cutting to avoid short circuit.The diaphragm in commercial Li-ion battery is by polyene at present
Hydrocarbon, such as polypropylene (PP) and polyethylene (PE).However traditional polyolefin film and organic electrolyte polarity are inconsistent, this may lead
Cause high-drag and poor circulation performance.
Currently, improving the method for the wellability of lithium battery diaphragm mainly in membrane surface coated inert high molecular polymer
(predominantly Kynoar PVDF, polymetylmethacrylate) improves the wellability to electrolyte, method particularly includes:
High molecular polymer is first dispersed into high molecular dispersion liquid, adds adhesive (predominantly acrylic compounds, vinyl cyanide), such as specially
Sharp CN108878738A disclose it is a kind of dispersed using the high molecular polymers such as polymethyl methacrylate in deionized water, thus
The method for preparing organic coating；Patent CN109065811A discloses a kind of aqueous PVDF coating diaphragm and preparation method thereof and answers
With the preparation process is as follows: preparing modified water-soluble PVDF powder first, further prepare PVDF coating slurry, further
Aqueous PVDF coating diaphragm is prepared, and then is obviously improved the comprehensive performance of lithium ion battery separator.
In addition, the method for electrostatic spinning can obtain polymer coating by raw material of high molecular polymer.Such as patent
CN201710812779 has disclosed a kind of polyolefin lithium electric separator, using porous polyolefin diaphragm as matrix, the polyolefin every
The unilateral or bilateral electrospinning of film has modified polyethylene terephthalate (PET) fiber coat, and poly- pair of the modification
Ethylene terephthalate fiber is inorganic oxide nanoparticles and the fiber that polyethylene terephthalate is combined.
In this method, inorganic oxide particles are coated by PET.But above scheme all has ignored high molecular polymer in electricity simultaneously
It is swollen in solution liquid, is blocked so as to cause the micro channel of lithium ion, influences its chemical property.
Summary of the invention
Based on the above the deficiencies in the prior art, technical problem solved by the invention be to provide a kind of polyolefin lithium electricity every
Film has good electrolyte wellability, and can prevent high molecular polymer swelling from ion channel being caused to block, and can improve
The cycle performance of battery, high rate performance.
In order to solve the above technical problem, the present invention provides a kind of polyolefin lithium electric separator preparation methods, include following step
It is rapid:
The first step configures the aqueous dispersions of inorganic oxide, and inorganic oxide (1-3) in mass ratio: 9 ratio is dispersed
In deionized water, the surfactant of 1-2wt% is added, and adjusts PH to 1-3 using inorganic acid, stirring 0.3-2h obtains nothing
Machine oxide-aqueous dispersions；
Second step in deionized water by the ratio dispersion of methyl methacrylate 1:9 in mass ratio adds 1-3wt%
Initiator, pass through Raolical polymerizable synthesize polymethyl methacrylate nano bead dispersion liquid；By polymethyl
The dispersion liquid of sour methyl esters nanometer bead is filtered, deionized water washing, is centrifuged, is dry, and it is small to obtain polymethyl methacrylate
Ball powder；In deionized water by the ratio dispersion of polymethyl methacrylate 1:9 in mass ratio, stirring 0.3-2h obtains poly- first
Base methyl acrylate-aqueous dispersions；
Third step, by inorganic oxide-water obtained by polymethyl methacrylate-aqueous dispersions obtained by second step and the first step
The 1:1-1:4 in mass ratio of dispersion liquid is mixed, and the adhesive of 6-10wt% is added, and stirring 0.5-2h obtains coating sizing-agent；
4th step prepares modified polymethyl methacrylate organic matter coating, using blade coating or roller coating or the side of spraying
Coating sizing-agent prepared by third step is applied to polyalkene diaphragm surface (main by the way of blade coating) by formula, dry at 60-80 DEG C
The polymethyl methacrylate organic matter coating of the modification of stable structure is obtained after dry.
As a preferred embodiment of the above technical solution, under polyolefin lithium electric separator preparation method provided by the invention further comprises
Some or all of column technical characteristic:
As an improvement of the above technical solution, in the first step, inorganic oxide is silica, aluminum oxide, α
Aluminium oxide, titanium dioxide；Surfactant is a kind of in lauryl sodium sulfate neopelex；Inorganic acid is 10-
The aqueous hydrochloric acid solution or 10-30wt% aqueous solution of nitric acid of 30wt%.
As an improvement of the above technical solution, in the first step, inorganic oxide.It is preferred that D50 is the α oxygen of 30-50nm
Change aluminium powder.Surfactant preferably sodium dodecyl sulfate.
As an improvement of the above technical solution, in the second step, initiator is potassium peroxydisulfate, in dibenzoyl peroxide
It is a kind of.It is preferred that potassium peroxydisulfate.
As an improvement of the above technical solution, in the second step, Raolical polymerizable, specifically: nitrogen at room temperature
During atmosphere is enclosed, first methyl methacrylate and deionized water are stirred 30 minutes, after be warming up to 70 DEG C, keep the temperature 5-10 minutes, then
1-2wt% potassium peroxydisulfate initiator is added, reacts 1-1.5 hours
As an improvement of the above technical solution, in the second step, Raolical polymerizable condition is, at 60-80 DEG C,
It is reacted 1-1.5 hours in nitrogen atmosphere, stirring rate 220r/min.
As an improvement of the above technical solution, in the third step, adhesive is Kynoar (PVDF), methylol is fine
It ties up a kind of in plain sodium-butadiene-styrene rubber (CMC-Na-SBR) or polytetrafluoroethylene (PTFE) (PTEF).
As an improvement of the above technical solution, in the 4th step, the polyalkene diaphragm is polyethylene diagrams, poly-
One of propylene diaphragm or polyethylene-polypropylene composite diaphragm.
As an improvement of the above technical solution, in the 4th step, coating sizing-agent prepared by third step is applied to polyene
The unilateral or bilateral surface of hydrocarbon diaphragm.
A kind of polyolefin lithium electric separator, the polyolefin lithium electric separator are prepared by above-mentioned any means.
As a preferred embodiment of the above technical solution, polyolefin lithium electric separator provided by the invention further comprises that following technology is special
Some or all of sign:
As an improvement of the above technical solution, the polyolefin lithium electric separator with a thickness of 6-50um, porosity is
35-50vol%；Modified polymethyl methacrylate organic matter layer with a thickness of 2-10um.
The invention discloses a kind of polyolefin lithium electric separator preparation methods, described poly- using porous polyolefin diaphragm as matrix
Polymethyl methacrylate (PMMA) the organic matter coating of the unilateral or bilateral of alkene diaphragm coated with modification, the modification
Polymethyl methacrylate organic matter is inorganic oxide nanoparticles and the organic matter that polymethyl methacrylate is combined.
The present invention for existing polypropylene perhaps the lower problem of polyethylene porous separator high temperature integrity and existing polypropylene or
The problems such as polyethylene film is poor to electrolyte wellability provides a kind of polyolefin lithium electric separator, the PMMA in coating, in lithium battery
There is good swellability in common esters electrolyte, therefore, there is good imbibition rate and lithium ion conduction performance.This
Outside, the inorganic oxide nanoparticles in coating can effectively prevent PMMA swelling from diaphragm being caused to hinder in battery use process
Therefore anti-raising has good cycle performance
Compared with prior art, technical solution of the present invention has the following beneficial effects:
First, the present invention is high for existing polypropylene or polyethylene porous separator impedance and influences asking for circulating battery
Topic, provides a kind of polyolefin lithium electric separator, due to the modified poly (methyl methacrylate) (PMMA) of inorganic oxide nanoparticles
Organic coating itself can be good at infiltrating with electrolyte, conducive to the performance for improving composite diaphragm.
Second, inorganic oxide particles can effectively avoid PMMA bead infiltrate electrolyte after expand plug-hole and cause every
Film properties decline.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, below in conjunction with preferred embodiment, detailed description are as follows.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing to embodiment is simply situated between below
It continues.
Fig. 1 is the scanning electron microscopic picture of composite diaphragm in the embodiment of the present invention 1.
Specific embodiment
The following detailed description of a specific embodiment of the invention, as part of this specification, by embodiment come
Illustrate that the principle of the present invention, other aspects of the present invention, feature and its advantage will become apparent by the detailed description.
Embodiment 1
A kind of polyolefin lithium electric separator, it is described with wet process polyethylene lithium electric separator (9um, porosity 42vol%) for matrix
The bilateral of polyalkene diaphragm, which scrapes figure, modified polymethyl methacrylate (PMMA) organic coating fiber coat, modified poly- first
Base methyl acrylate (PMMA) organic matter coating layer thickness is 0.5-1um；The polymethyl methacrylate (PMMA) of the modification
Organic matter is the mixture that alpha alumina particles and polymethyl methacrylate mix.
The preparation method of said polyolefins lithium electric separator, the specific steps are as follows:
1) in deionized water by the ratio dispersion for the alpha alumina particles 1:9 in mass ratio that partial size is 30nm, 1- is added
The lauryl sodium sulfate of 2wt%, and PH to 1-3 is adjusted using 10wt% aqueous hydrochloric acid solution, stirring 2h obtains inorganic oxide-
Aqueous dispersions；
2) first methyl methacrylate is mixed at room temperature with deionized water 1:9 in mass ratio, is passed through nitrogen, throughput
For 60ml/min, stir 30min, stirring rate 250r/min, after be warming up to 70 DEG C, keep the temperature 10 minutes, 1-2wt% mistake be added
Potassium sulfate initiator, reacts 1.5h, and free radical polymerization synthesizes polymethyl methacrylate nano bead.By poly-methyl methacrylate
Ester dispersion liquid is filtered, deionized water washing, is centrifuged, is dry, obtains more uniform polymethyl methacrylate bead powder.
In deionized water by the ratio dispersion of polymethyl methacrylate 1:9 in mass ratio, stirring 2h obtains poly-methyl methacrylate
Ester-aqueous dispersions；
3) by inorganic oxide-water dispersion obtained by polymethyl methacrylate-aqueous dispersions obtained by second step and the first step
The 1:1.5 in mass ratio of liquid is mixed, and sodium cellulose glycolate-butadiene-styrene rubber (1:1.5) is added, and stirring 2h obtains coating slurry
Material, wherein sodium cellulose glycolate-butadiene-styrene rubber mass fraction in slurry system is 6wt%；
4) coating sizing-agent prepared by third step is applied to polyethylene diagrams surface with bar, in 60 DEG C of oven drying
The polymethyl methacrylate organic matter coating of the modification of stable structure is obtained after 12h.
The surface scan electromicroscopic photograph of polyolefin lithium electric separator obtained by the present embodiment is as shown in Fig. 1, it can be clearly seen that α
Alumina build-up forms rock-steady structure on polymethyl methacrylate.Polyethylene diagrams conductivity used in this programme is
0.347mS/cm, under 3C current density, specific discharge capacity 102.7mAh/g.Under 1C current density after 200 circle of circulation,
Discharge capacitance is 80.9%.The polyethylene diagrams conductivity of this programme modification obtained is 0.429mS/cm, 3C electricity
Under current density, after loop test 200 encloses under specific discharge capacity 112.9mAh/g, 1C current density, discharge capacitance
It is 93.9%.Modified polyalkene diaphragm shows more outstanding chemical property, improves the use value of diaphragm.
Embodiment 2
A kind of one polyolefin lithium electric separator, with wet process polyethylene lithium electric separator (9um, porosity 42vol%) for matrix, institute
The bilateral for stating polyalkene diaphragm, which scrapes figure, modified polymethyl methacrylate (PMMA) organic coating fiber coat, and modified is poly-
Methyl methacrylate (PMMA) organic matter coating layer thickness is 0.5-1um；The polymethyl methacrylate of the modification
(PMMA) organic matter is the mixture that alpha alumina particles and polymethyl methacrylate mix.
The preparation method of said polyolefins lithium electric separator, the specific steps are as follows:
1) in deionized water by the ratio dispersion for the alpha alumina particles 1:9 in mass ratio that partial size is 30nm, 1- is added
The lauryl sodium sulfate of 2wt%, and PH to 1-3 is adjusted using 10wt% aqueous hydrochloric acid solution, stirring 2h obtains inorganic oxide-
Aqueous dispersions；
2) first methyl methacrylate is mixed at room temperature with deionized water 1:9 in mass ratio, is passed through nitrogen, throughput
For 60ml/min, stir 30min, stirring rate 250r/min, after be warming up to 70 DEG C, keep the temperature 10 minutes, 1-2wt% mistake be added
Potassium sulfate initiator, reacts 1.5h, and free radical polymerization synthesizes polymethyl methacrylate nano bead.By poly-methyl methacrylate
Ester dispersion liquid is filtered, deionized water washing, is centrifuged, is dry, obtains more uniform polymethyl methacrylate bead powder.
In deionized water by the ratio dispersion of polymethyl methacrylate 1:9 in mass ratio, stirring 2h obtains poly-methyl methacrylate
Ester-aqueous dispersions；
3) by inorganic oxide-water dispersion obtained by polymethyl methacrylate-aqueous dispersions obtained by second step and the first step
The 1:4 in mass ratio of liquid is mixed, and the sodium cellulose glycolate-butadiene-styrene rubber being added, and stirring 2h obtains coating sizing-agent.Wherein hydroxyl
Sodium carboxymethylcellulose pyce-butadiene-styrene rubber mass fraction in slurry system is 6wt%；
4) coating sizing-agent prepared by third step is applied to polyethylene diagrams surface with bar, it is dry in 60-80 DEG C of baking oven
The polymethyl methacrylate organic matter coating of the modification of stable structure is obtained after dry 12h.
Compared in embodiment 1, embodiment 2 increases the amount of inorganic oxide, and conductivity is increased to 0.455mS/cm,
3C current density discharge capacity is 117.8mAh/g, and 200 circle of circulation, discharge capacitance are under 1C current density
94.5%.The inhibitory effect that aluminium oxide expands polymer is embodied very well.
The bound of each raw material cited by the present invention and each raw material of the present invention, section value and technological parameter
Bound, the section value of (such as temperature, time) can realize the present invention, embodiment numerous to list herein.
The above is a preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also
To make several improvement and variation, these, which improve and change, is also considered as protection scope of the present invention.
Claims (9)
1. a kind of polyolefin lithium electric separator preparation method, which is characterized in that comprise the following steps:
The first step configures the aqueous dispersions of inorganic oxide, and by inorganic oxide (1-3) in mass ratio: 9 ratio is dispersed in
In ionized water, the surfactant of 1-2wt% is added, and adjust PH to 1-3 using inorganic acid, stirring 0.3-2h obtains inorganic oxygen
Compound-aqueous dispersions；
Second step in deionized water by the ratio dispersion of methyl methacrylate 1:9 in mass ratio adds drawing for 1-3wt%
Agent is sent out, the dispersion liquid of polymethyl methacrylate nano bead is synthesized by Raolical polymerizable；By poly-methyl methacrylate
The dispersion liquid of ester nanometer bead is filtered, deionized water washing, is centrifuged, is dry, obtains polymethyl methacrylate bead powder
End；In deionized water by the ratio dispersion of polymethyl methacrylate 1:9 in mass ratio, stirring 0.3-2h obtains poly- methyl-prop
E pioic acid methyl ester-aqueous dispersions；
Third step, by inorganic oxide-water dispersion obtained by polymethyl methacrylate-aqueous dispersions obtained by second step and the first step
The 1:1-1:4 in mass ratio of liquid is mixed, and the adhesive of 6-10wt% is added, and stirring 0.5-2h obtains coating sizing-agent；
4th step prepares modified polymethyl methacrylate organic matter coating, will by the way of blade coating or roller coating or spraying
The coating sizing-agent of third step preparation is applied to polyalkene diaphragm surface, and the modification of stable structure is obtained after dry at 60-80 DEG C
Polymethyl methacrylate organic matter coating.
2. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: in the first step, inorganic oxygen
Compound is silica, aluminum oxide, alpha-aluminium oxide, titanium dioxide；Surfactant is lauryl sodium sulfate dodecyl
It is a kind of in benzene sulfonic acid sodium salt；Inorganic acid is the aqueous hydrochloric acid solution or 10-30wt% aqueous solution of nitric acid of 10-30wt%.
3. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: in the second step, initiator
It is a kind of in potassium peroxydisulfate, dibenzoyl peroxide.
4. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: in the second step, free radical
Polymerization reaction, specifically: first methyl methacrylate and deionized water are stirred 30 minutes at room temperature, after be warming up to 70 DEG C,
Heat preservation 5-10 minutes adds 1-2wt% potassium peroxydisulfate initiator, reacts 1-1.5 hours.The above process is in nitrogen atmosphere
It carries out.
5. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: in the third step, adhesive
It is a kind of in Kynoar, sodium cellulose glycolate-butadiene-styrene rubber or polytetrafluoroethylene (PTFE).
6. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: described in the 4th step
Polyalkene diaphragm is one of polyethylene diagrams, polypropylene diaphragm or polyethylene-polypropylene composite diaphragm.
7. polyolefin lithium electric separator preparation method as described in claim 1, it is characterised in that: in the 4th step, by third
The coating sizing-agent of step preparation is applied to the unilateral or bilateral surface of polyalkene diaphragm.
8. a kind of polyolefin lithium electric separator, it is characterised in that: the polyolefin lithium electric separator is appointed as described in claim 1-6
Meaning method is prepared.
9. polyolefin lithium electric separator preparation method as claimed in claim 7, it is characterised in that: the polyolefin lithium electricity every
Film with a thickness of 6-50um, porosity 35-50vol%；Modified polymethyl methacrylate organic matter layer with a thickness of 2-
10um。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952290A (en) * | 2021-01-29 | 2021-06-11 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence Spectrometry) and preparation method thereof, and high-swelling-degree AFL ceramic diaphragm |
| CN114284642A (en) * | 2021-11-24 | 2022-04-05 | 荣盛盟固利新能源科技股份有限公司 | Multilayer coating diaphragm and polymer battery prepared from same |
| CN114361706A (en) * | 2021-12-29 | 2022-04-15 | 上海恩捷新材料科技有限公司 | Coated diaphragm and preparation method thereof |
| CN115000623A (en) * | 2022-07-26 | 2022-09-02 | 江苏厚生新能源科技有限公司 | Composite lithium battery diaphragm and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046116A (en) * | 2016-08-26 | 2017-08-15 | 宁德卓高新材料科技有限公司 | A kind of preparation method of aqueous PMMA composite coateds barrier film |
| US20180294476A1 (en) * | 2017-04-10 | 2018-10-11 | Nanotek Instruments, Inc. | Lithium Metal Secondary Battery Containing an Anode-Protecting Polymer Layer and Manufacturing Method |
| CN108711605A (en) * | 2018-07-10 | 2018-10-26 | 深圳中兴新材技术股份有限公司 | A kind of composite battery separator film, preparation method and battery |
-
2019
- 2019-05-15 CN CN201910403265.9A patent/CN110137416A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107046116A (en) * | 2016-08-26 | 2017-08-15 | 宁德卓高新材料科技有限公司 | A kind of preparation method of aqueous PMMA composite coateds barrier film |
| US20180294476A1 (en) * | 2017-04-10 | 2018-10-11 | Nanotek Instruments, Inc. | Lithium Metal Secondary Battery Containing an Anode-Protecting Polymer Layer and Manufacturing Method |
| CN108711605A (en) * | 2018-07-10 | 2018-10-26 | 深圳中兴新材技术股份有限公司 | A kind of composite battery separator film, preparation method and battery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952290A (en) * | 2021-01-29 | 2021-06-11 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence Spectrometry) and preparation method thereof, and high-swelling-degree AFL ceramic diaphragm |
| CN112952290B (en) * | 2021-01-29 | 2022-06-17 | 江苏厚生新能源科技有限公司 | High-swelling-degree AFL (atomic fluorescence labeling), preparation method thereof and high-swelling-degree AFL ceramic diaphragm |
| CN114284642A (en) * | 2021-11-24 | 2022-04-05 | 荣盛盟固利新能源科技股份有限公司 | Multilayer coating diaphragm and polymer battery prepared from same |
| CN114361706A (en) * | 2021-12-29 | 2022-04-15 | 上海恩捷新材料科技有限公司 | Coated diaphragm and preparation method thereof |
| WO2023123751A1 (en) * | 2021-12-29 | 2023-07-06 | 上海恩捷新材料科技有限公司 | Coated diaphragm and preparation method therefor |
| CN115000623A (en) * | 2022-07-26 | 2022-09-02 | 江苏厚生新能源科技有限公司 | Composite lithium battery diaphragm and preparation method thereof |
| CN115000623B (en) * | 2022-07-26 | 2023-09-01 | 江苏厚生新能源科技有限公司 | Composite lithium battery diaphragm and preparation method thereof |
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Application publication date: 20190816 |