CN108666509A - A kind of lithium-sulfur cell diaphragm and preparation method thereof, application - Google Patents
A kind of lithium-sulfur cell diaphragm and preparation method thereof, application Download PDFInfo
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- CN108666509A CN108666509A CN201810478583.7A CN201810478583A CN108666509A CN 108666509 A CN108666509 A CN 108666509A CN 201810478583 A CN201810478583 A CN 201810478583A CN 108666509 A CN108666509 A CN 108666509A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
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Abstract
The invention discloses lithium-sulfur cell diaphragms comprising the mass ratio of stephanoporate framework and the nanometer sheet being dispersed in the stephanoporate framework, the nanometer sheet surface grafting cation exchange group, the stephanoporate framework and the nanometer sheet is 1:0.05‑1:4.The stephanoporate framework is the micro- stephanoporate framework of macromolecule resin, and the molecular weight of the macromolecule resin is about 100,000 20 ten thousand, and the nanometer sheet is inorganic nano sheet, and the thickness of the inorganic nano sheet is about 0.05 μm 1.0 μm.A kind of lithium-sulfur cell diaphragm prepared by the present invention equally shows excellent performance in the case where having the more sulphur of excellent prevention and shuttling on limitation dendritic growth, and the service life and performance of the lithium-sulfur cell prepared using the lithium-sulfur cell diaphragm shows excellent.
Description
Technical field
The present invention relates to lithium-sulfur cell diaphragm and its preparation field more particularly to a kind of lithium-sulfur cell diaphragm and its preparation sides
Method, application.
Background technology
In the battery, diaphragm outside ion channel, should also have special work(between avoiding positive and negative electrode short circuit, maintaining electrode
Can, such as " the shuttle effect " of prevention polysulfide, currently, there is also some problems about the research of multifunctional membrane, such as
Using functional coating stop " more sulphur shuttles ", but it is this research and be only to solve " more sulphur shuttles ", however, many diaphragms
During limitation " more sulphur shuttles ", while passing through for lithium ion is also prevented, that is, reduces the passability of lithium ion,
And then affect the discharge performance of battery.
Invention content
In view of this, the present invention provides a kind of lithium-sulfur cell diaphragm and preparation method thereof, application, having good resistance
Only excellent lithium ion permeability is had both while " more sulphur shuttles " performance.
The technological means that the present invention uses is as follows：
A kind of lithium-sulfur cell diaphragm, the diaphragm include stephanoporate framework and the nanometer that is dispersed in the stephanoporate framework
The mass ratio of piece, the nanometer sheet surface grafting cation exchange group, the stephanoporate framework and the nanometer sheet is 1:0.05-
1:4.It is mixed with stephanoporate framework using nanometer sheet, is that nanometer sheet is embedded in bone porous hole, similar one kind increases in hole
Add obstruction structure, when more sulfur materials shuttle in hole, the obstruction structure of inorganic nano sheet can block more sulfur materials
It cuts down and, intercept layer by layer；Lithium ion can be allowed to pass through and into one in nanometer sheet surface grafting cation exchange group
Step prevents the shuttle of sulfide, has excellent lithium ion/polysulfide screening selectivity.
The stephanoporate framework and the mass ratio of the nanometer sheet are 1:0.05-1:4, suitable mass ratio makes stephanoporate framework
While inner pore still has good ionic conductivity, the obstruction structure of suitable size is formed in hole, due to more sulphur
Compound structure is big compared with lithium ion microstructure, which can intercept lower polysulfide and lithium ion is allowed to penetrate, tool
For screening selectivity.The cation exchange group being grafted in nanometer sheet carries negative electricity, and the cation with positive electricity can lead to
Diaphragm is crossed, and the anion with negative electricity is stopped in due to being ostracised outside diaphragm, cannot be further enhanced by diaphragm
The selectivity of ion brush point.
Preferably, the stephanoporate framework is the micro- stephanoporate framework of macromolecule resin, and the molecular weight of the macromolecule resin is about
100000-20 ten thousand, the nanometer sheet is inorganic nano sheet, and the thickness of the inorganic nano sheet is about 0.05 μm-1.0 μm.It selects resistance to
Burn into avoids the inorganic nano sheet that may be reacted with lithium ion or sulphion, avoids nanometer sheet resistance sulfur functional
Failure；The thickness of inorganic nano sheet meets the requirement of the micro- bone porous hole of macromolecule resin, is unlikely to be fully filled with hole,
The intensity requirement to inorganic nano sheet in preparation process will not be cannot be satisfied.
Preferably, the micro- bone porous molecular structure of the macromolecule resin includes highly polar group, described highly polar
Group includes one or more of nitrogen-containing group, sulfur-containing group and phosphorus-containing groups.Nitrogenous base in highly polar group therein
Group, sulfur-containing group and phosphorus-containing groups are positive charged group, have positive effect to intercepting the polysulfide with negative electricity, further increase
The resistance sulphur shuttle effect of strong diaphragm.
Preferably, the inorganic nano sheet includes NaA zeolites, MFI zeolites, y-type zeolite, MCM-41 zeolites and MCM-48 boilings
One or more of stone.
Preferably, the cation exchange group includes sulfonic acid group, carboxylic acid group.
Preferably, the nanometer sheet also has micropore, mesoporous or nano-pore structure.Micropore, mesoporous is opened up in nanometer sheet
Or nano-pore structure can be by micropore, mesoporous or nano-pore structure since lithium ion microstructure is smaller, and prevent microcosmic
The larger polysulfide of structure in the case of effectively sulphur being prevented to shuttle, allows lithium ion unimpeded, lithium ion/polysulfide screening
The ratio between delivery rate of two kinds of ions is selected to be more than 10.
Preferably, the cation exchange group and the mass ratio of the nanometer sheet are about：1：10-1：50.Accurate control
The ratio of cation exchange group and nanometer sheet, while ensureing that the micropore of nanometer sheet, mesoporous or nano-pore structure are still unobstructed
Grafted cation cation exchange groups as much as possible so that diaphragm of the invention has the work(of the ion screening of multi-stage artery structure
Energy.
The diaphragm that the above structure is arranged has good resistance sulphur shuttle performance and lithium ion transparent performance.
Preferably, a kind of preparation method of lithium-sulfur cell diaphragm, includes the following steps：
S1. nanometer sheet surface is modified, and by cation exchange group on nanometer sheet surface grafting, is washed to neutral, drying, roasting
It burns and obtains surface-modified nano piece；
S2. prepared by preparation liquid, prepares high-molecular resin solution, the surface-modified nano piece and resin that will be prepared in step S1
Solution mixes, and stirs evenly, and obtains preparation liquid；
S3. the preparation liquid in S2 is removed into bubble under vacuum, in planar surface striking wet film, room temperature condition is stood, so
Tablet is immersed in the water together with film afterwards and continues to stand, takes out and obtains the lithium-sulfur cell diaphragm by dry.
The above method is simple for process, and process cycle is short, energy conservation and environmental protection, is suitble to large-scale production.
Preferably, the cation exchange group described in the step S1 includes sulfonic acid group, carboxylic acid group, the step
The solid content of high-molecular resin solution is 12%-45% in S2；The humidity stood under room temperature in the step S3 is 30%-
95%, time 5s-120s；The time for being immersed in the water standing is 8h-12h.
The present invention also provides a kind of lithium-sulfur cell diaphragms in the application of lithium-sulfur cell, the average hole of the lithium-sulfur cell diaphragm
Diameter<80nm, porosity>30%.
Using a kind of lithium-sulfur cell diaphragm provided by the present invention and preparation method thereof, lithium-sulfur cell, there is following technology
Effect：
A kind of lithium-sulfur cell diaphragm prepared by the present invention has while having the performance that the excellent more sulphur of prevention shuttle
Good lithium ion permeability, and then it is used for good puncture resistance, preparation method is simple for process, and process cycle is short, section
Can be environmentally friendly, it is suitble to large-scale production, the service life and performance of the lithium-sulfur cell prepared using the lithium-sulfur cell diaphragm is showed
It is excellent；Its lithium ion/polysulfide screening selectivity>10, puncture resistant ability>250g.
Description of the drawings
Fig. 1 is lithium sulphur diaphragm Electronic Speculum phenogram of the present invention；
Fig. 2 is lithium sulphur diaphragm ion transport schematic diagram of the present invention.
Specific implementation mode
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
In the present invention, unless specified otherwise, the percentage being related to is mass percent, refers to constant-current discharge 1 under 1 condition C
Terminate current value when electric discharge after hour, lithium ion transference number refers to total electricity of the electricity in all Ion transfers of lithium ion mobility
Shared score in amount, lithium ion/polysulfide screening selectivity refer to the ratio between the delivery rate of two kinds of ions.
Embodiment 1
About 5 grams of MFI zeolite nanometer sheets are placed in round-bottomed flask, the sulfuric acid of 100ml60% is added, persistently locates at 45 DEG C
30min is managed, sulfonation modifying processing is completed.Above-mentioned zeolite nanometer sheet is finally washed to neutral, drying, 550oc roasting 3h, finally
Obtain the zeolite nanometer sheet that thickness is 0.2 μm.
According to polyacrylonitrile：Mfi zeolites nanometer sheet=1:The film making solution that 0.15 proportional arrangement solid content is 20%.Clean
The wet film that striking thickness is 135 μm on net glass plate keeps 30s under the conditions of epidemic disaster is 60% in room.Subsequent above-mentioned wet film
Split-phase handles 12h in excessive deionized water, by dry obtain there is the ion of multi-stage artery structure to sieve compound lithium sulphur
Battery diaphragm.
Above-mentioned lithium-sulfur cell diaphragm is tested according to prior art preparation at lithium-sulfur cell.
Lithium-sulfur cell diaphragm micro-structure test result：32 μm, average pore size 45nm of thickness, porosity 58%.
Lithium-sulfur cell diaphragm ion sieves results of property：Lithium ion transference number 0.92, lithium ion/polysulfide infiltration selection
Property 62.
Lithium-sulfur cell diaphragm puncture resistance result：300 grams of puncture resistant ability.
Lithium-sulfur cell cyclicity result：Under 1 condition C, recycle 200 primary cell discharge capacities decaying 15%.
Above-mentioned test result shows that the battery shows excellent cycle performance, anti-Li dendrite performance and very low capacity damage
Stall rate.
Embodiment 2
About 5 grams of NaA zeolite nanometer sheets are placed in round-bottomed flask, is added at 100ml30% glacial acetic acid, with 45 DEG C and persistently returns
Stream process 50min completes Carboxylation modification.Above-mentioned zeolite nanometer sheet is finally washed to neutral, drying, 500oc is roasted
3h finally obtains the zeolite nanometer sheet that thickness is 0.35 μm.
According to phosphatization polyphenylene oxide：Y zeolites nanometer sheet=1:The film making solution that 0.2 proportional arrangement solid content is 30%.Clean
The wet film that striking thickness is 120 μm on net glass plate keeps 20s under the conditions of epidemic disaster is 60% in room.Subsequent above-mentioned wet film
Split-phase handles 8h in excessive deionized water, by dry obtain there is the ion of multi-stage artery structure to sieve compound lithium sulphur electricity
Pond diaphragm.
Above-mentioned lithium-sulfur cell diaphragm is tested according to prior art preparation at lithium-sulfur cell.
Lithium-sulfur cell diaphragm micro-structure test result：24 μm, average pore size 38nm of thickness, porosity 62%.
Lithium-sulfur cell diaphragm ion sieves results of property：Lithium ion transference number 0.95, lithium ion/polysulfide infiltration selection
Property 47.
Lithium-sulfur cell diaphragm puncture resistance result：340 grams of puncture resistant ability.
Lithium-sulfur cell cyclicity result：Under 1 condition C, recycle 200 primary cell discharge capacities decaying 12%.
Above-mentioned test result shows that the battery shows excellent cycle performance, anti-Li dendrite performance and very low capacity damage
Stall rate.
Embodiment 3
About 5 grams of Y zeolite nanometer sheets are placed in round-bottomed flask, the sulfuric acid of 100ml60% is added, is persistently handled at 45 DEG C
40min completes sulfonation modifying processing.Above-mentioned zeolite nanometer sheet is finally washed to neutral, drying, 550oc roasting 3h, is finally obtained
Obtain the zeolite nanometer sheet that thickness is 0.05 μm.
According to polyimides：Y zeolites nanometer sheet=1:The film making solution that 0.3 proportional arrangement solid content is 45%.In cleaning
Glass plate on striking thickness be 110 μm of wet film, keep 120s under the conditions of epidemic disaster is 30% in room.Subsequent above-mentioned wet film
Split-phase handles 12h in excessive deionized water, by dry obtain there is the ion of multi-stage artery structure to sieve compound lithium sulphur
Battery diaphragm.
Above-mentioned lithium-sulfur cell diaphragm is tested according to prior art preparation at lithium-sulfur cell.
Lithium-sulfur cell diaphragm micro-structure test result：26 μm, average pore size 34nm of thickness, porosity 74%.
Lithium-sulfur cell diaphragm ion sieves results of property：Lithium ion transference number 0.96, lithium ion/polysulfide infiltration selection
Property 57.
Lithium-sulfur cell diaphragm puncture resistance result：330 grams of puncture resistant ability.
Lithium-sulfur cell cyclicity result：Under 1 condition C, recycle 200 primary cell discharge capacities decaying 11%.
Above-mentioned test result shows that the battery shows excellent cycle performance, anti-Li dendrite performance and very low capacity damage
Stall rate.
Embodiment 4
About 5 grams of MCM-41 zeolite nanometer sheets are placed in round-bottomed flask, is added at 100ml30% glacial acetic acid, with 45 DEG C and holds
Continuous reflow treatment 40min, completes Carboxylation modification.Above-mentioned zeolite nanometer sheet is finally washed to neutral, drying, 500oc
3h is roasted, the zeolite nanometer sheet that thickness is 1.0 μm is finally obtained.
According to polytetrafluoroethylene (PTFE)：MCM-41 zeolites nanometer sheet=1:The film that 0.12 proportional arrangement solid content is 12% is molten
Liquid.The wet film that striking thickness is 130 μm on clean glass plate keeps 5s under the conditions of epidemic disaster is 95% in room.On then
It states wet film split-phase in excessive deionized water and handles 8h, sieved by dry ion of the acquisition with multi-stage artery structure compound
Lithium-sulfur cell diaphragm.
Above-mentioned lithium-sulfur cell diaphragm is tested according to prior art preparation at lithium-sulfur cell.
Lithium-sulfur cell diaphragm micro-structure test result：35 μm, average pore size 48nm of thickness, porosity 68%.
Lithium-sulfur cell diaphragm ion sieves results of property：Lithium ion transference number 0.98, lithium ion/polysulfide infiltration selection
Property 57.
Lithium-sulfur cell diaphragm puncture resistance result：350 grams of puncture resistant ability.
Lithium-sulfur cell cyclicity result：Under 1 condition C, recycle 200 primary cell discharge capacities decaying 14%.
Above-mentioned test result shows that the battery shows excellent cycle performance, anti-Li dendrite performance and very low capacity damage
Stall rate.
Embodiment 5
About 5 grams of MCM-48 zeolite nanometer sheets are placed in round-bottomed flask, the sulfuric acid of 100ml60% is added, is held at 45 DEG C
Continuous processing 30min, completes sulfonation modifying processing.Above-mentioned zeolite nanometer sheet is finally washed to neutral, drying, 550oc roasting 3h,
Finally obtain the zeolite nanometer sheet that thickness is 0.65 μm.
According to polyether-ether-ketone：MCM-48 zeolites nanometer sheet=1:The film making solution that 0.3 proportional arrangement solid content is 35%.
The wet film that striking thickness is 120 μm on clean glass plate keeps 50s under the conditions of epidemic disaster is 70% in room.It is then above-mentioned wet
Film split-phase in excessive deionized water handles 7h, by dry obtain there is the ion of multi-stage artery structure to sieve compound lithium sulphur
Battery diaphragm.
Above-mentioned lithium-sulfur cell diaphragm is tested according to prior art preparation at lithium-sulfur cell.
Lithium-sulfur cell diaphragm micro-structure test result：26 μm, average pore size 34nm of thickness, porosity 74%.
Lithium-sulfur cell diaphragm ion sieves results of property：Lithium ion transference number 0.95, lithium ion/polysulfide infiltration selection
Property 42.
Lithium-sulfur cell diaphragm puncture resistance result：320 grams of puncture resistant ability.
Lithium-sulfur cell cyclicity result：Under 1 condition C, recycle 200 primary cell discharge capacities decaying 11%.
Above-mentioned test result shows that the battery shows excellent cycle performance, anti-Li dendrite performance and very low capacity damage
Stall rate.
Such as Fig. 1 lithium sulphur diaphragm Electronic Speculum phenograms and Fig. 2 lithium sulphur shuttle effect schematic diagrames, in lithium-sulfur cell, sulphur anode
The polysulfide that side generates permeates under conditions of concentration difference to lithium anode, and lithium sulphur diaphragm of the invention is sieved with ion
The multi-stage artery structure of function is distributed with nanometer sheet in hole, is a kind of obstruction structure, can be by more vulcanizations of sulphur anode side
Object stops, and the microstructure of polysulfide and lithium ion is of different sizes, lithium-sulfur cell diaphragm channel can by lithium from
Son, reached screening function cation exchange group is further grafted in nanometer sheet, can selectively by lithium from
Son, since repulsive interaction prevents polysulfide, while the micro- bone porous molecular structure of macromolecule resin includes highly polar
Group is positive charged group which includes nitrogen-containing group, sulfur-containing group and phosphorus-containing groups, can will wait for the polysulfide of negative electricity
It has been attracted that, prevent its shuttle, finally by lithium-sulfur cell diaphragm and reach cathode of lithium side almost without polysulfide and only
There is lithium ion.The compound lithium sulphur diaphragm of ion screening type provided by the invention with multi-stage artery structure is with prevention sulfide
Shuttle, lithium ion permeability are good, i.e. the dual function of inhibition lithium dendrite growth, while lithium-sulfur cell diaphragm microfabricated tunable,
The advantages that temperature tolerance is good, ionic conductivity is high, reason/change stability is good, and it is simple, at low cost etc. excellent with composite membrane preparation process
Point, easy to operate without expensive production equipment, production efficiency height is, it can be achieved that large-scale industrial production.
Claims (10)
1. a kind of lithium-sulfur cell diaphragm, which is characterized in that it includes stephanoporate framework and is dispersed in receiving in the stephanoporate framework
The mass ratio of rice piece, the nanometer sheet surface grafting cation exchange group, the stephanoporate framework and the nanometer sheet is 1:
0.05-1:4。
2. lithium-sulfur cell diaphragm according to claim 1, which is characterized in that the stephanoporate framework is that macromolecule resin is micro- more
The molecular weight of hole on framework, the macromolecule resin is about 100,000-20 ten thousand, and the nanometer sheet is inorganic nano sheet, described inorganic to receive
The thickness of rice piece is about 0.05 μm -1.0 μm.
3. lithium-sulfur cell diaphragm according to claim 2, which is characterized in that micro- bone porous point of the macromolecule resin
Minor structure includes highly polar group, and the highly polar group includes one kind in nitrogen-containing group, sulfur-containing group and phosphorus-containing groups
Or it is a variety of.
4. lithium-sulfur cell diaphragm according to claim 2, which is characterized in that the inorganic nano sheet include NaA zeolites,
One or more of MFI zeolites, y-type zeolite, MCM-41 zeolites and MCM-48 zeolites.
5. lithium-sulfur cell diaphragm according to claim 1, which is characterized in that the cation exchange group includes sulfonic group
Group, carboxylic acid group.
6. lithium-sulfur cell diaphragm according to claim 1, which is characterized in that the nanometer sheet also have micropore, it is mesoporous or
Nano-pore structure.
7. lithium-sulfur cell diaphragm according to claim 1, which is characterized in that the cation exchange group and the nanometer
The mass ratio of piece is about：1：10-1：50.
8. a kind of preparation method of lithium-sulfur cell diaphragm, which is characterized in that include the following steps：
S1. nanometer sheet surface is modified, and by cation exchange group on nanometer sheet surface grafting, is washed to neutral, drying, roasting obtains
Obtain surface-modified nano piece；
S2. prepared by preparation liquid, prepares high-molecular resin solution, the surface-modified nano piece and resin solution that will be prepared in step S1
Mixing, stirs evenly, and obtains preparation liquid；
S3. the preparation liquid in S2 is removed into bubble under vacuum, in planar surface striking wet film, room temperature condition is stood, and then will
Tablet is immersed in the water together with film to be continued to stand, and is taken out and is obtained the lithium-sulfur cell diaphragm by dry.
9. lithium-sulfur cell diaphragm preparation method according to claim 8, which is characterized in that the sun described in the step S1
Ion-exchange group includes sulfonic acid group, carboxylic acid group, and the solid content of high-molecular resin solution is 12%- in the step S2
45%；The humidity stood under room temperature in the step S3 is 30%-95%, time 5s-120s；It is immersed in the water standing
Time is 8h-12h.
10. a kind of lithium-sulfur cell diaphragm as described in any one of claim 1~7 is in the application of lithium-sulfur cell, feature
It is, the average pore size of the lithium-sulfur cell diaphragm<80nm, porosity>30%.
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| CN201810478583.7A CN108666509A (en) | 2018-05-18 | 2018-05-18 | A kind of lithium-sulfur cell diaphragm and preparation method thereof, application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192991A (en) * | 2020-01-08 | 2020-05-22 | 嘉兴学院 | MFI-PAN (melt flow index-Polyacrylonitrile) diaphragm and preparation method and application thereof |
| CN111370620A (en) * | 2020-02-26 | 2020-07-03 | 华中科技大学 | Functional diaphragm of lithium-sulfur battery and preparation method thereof |
| CN111554856A (en) * | 2020-05-18 | 2020-08-18 | 华中科技大学 | Functional composite interlayer of lithium-sulfur battery, and preparation and application thereof |
| CN113410575A (en) * | 2021-06-24 | 2021-09-17 | 福建师范大学 | Preparation method of metal organic framework material for lithium-sulfur battery diaphragm based on aperture segmentation strategy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474603A (en) * | 2013-09-11 | 2013-12-25 | 清华大学 | Ion selective separator for lithium sulfur secondary battery as well as preparation method and application method thereof |
| CN106876631A (en) * | 2015-12-14 | 2017-06-20 | 中国科学院大连化学物理研究所 | A kind of application of amberplex in lithium-sulfur rechargeable battery |
| CN107546356A (en) * | 2016-06-29 | 2018-01-05 | 中国科学院大连化学物理研究所 | A kind of application of molecular sieve composite porous film in lithium-sulfur cell |
-
2018
- 2018-05-18 CN CN201810478583.7A patent/CN108666509A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474603A (en) * | 2013-09-11 | 2013-12-25 | 清华大学 | Ion selective separator for lithium sulfur secondary battery as well as preparation method and application method thereof |
| CN106876631A (en) * | 2015-12-14 | 2017-06-20 | 中国科学院大连化学物理研究所 | A kind of application of amberplex in lithium-sulfur rechargeable battery |
| CN107546356A (en) * | 2016-06-29 | 2018-01-05 | 中国科学院大连化学物理研究所 | A kind of application of molecular sieve composite porous film in lithium-sulfur cell |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192991A (en) * | 2020-01-08 | 2020-05-22 | 嘉兴学院 | MFI-PAN (melt flow index-Polyacrylonitrile) diaphragm and preparation method and application thereof |
| CN111192991B (en) * | 2020-01-08 | 2022-08-30 | 嘉兴学院 | MFI-PAN (MFI-Polyacrylonitrile) diaphragm and preparation method and application thereof |
| CN111370620A (en) * | 2020-02-26 | 2020-07-03 | 华中科技大学 | Functional diaphragm of lithium-sulfur battery and preparation method thereof |
| CN111554856A (en) * | 2020-05-18 | 2020-08-18 | 华中科技大学 | Functional composite interlayer of lithium-sulfur battery, and preparation and application thereof |
| CN113410575A (en) * | 2021-06-24 | 2021-09-17 | 福建师范大学 | Preparation method of metal organic framework material for lithium-sulfur battery diaphragm based on aperture segmentation strategy |
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