CN107732104A - A kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell - Google Patents
A kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell Download PDFInfo
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Abstract
The invention discloses a kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell, comprise the following steps：S1. electrostatic spinning prepares polyacrylonitrile film：Polyacrylonitrile powder and N, N dimethylformamide are mixed, stirring after sealing prepares polyacrylonitrile fibre until the transparent uniform solution of acquisition using electrostatic spinning；S2. electrostatic spinning PAN films are pre-processed；S3. carbonization treatment：The electrostatic spinning PAN films of heat treatment in advance in S2 are carbonized.The materials application that preparation method of the present invention obtains is placed on the effect that physical or the shuttle for fixing polysulfide chemically can be played among positive pole and barrier film in feature interlayer, improves the utilization rate of positive active material.In charge and discharge process, the polarization phenomena helped to reduce during electrode electro Chemical improve the cycle performance of electrode, and then strengthen the chemical property of lithium-sulfur cell so as to effectively alleviate the volumetric expansion problem of electrode material.
Description
Technical field
The invention belongs to cell interlayer preparing technical field, is applied to more particularly, to a kind of in lithium-sulfur cell just
The preparation method of pole feature interlayer.
Background technology
With the rapid development of science and technology and information industry, the world today needs in a hurry to regenerative resource and new energy
Ask.Lithium ion battery has the advantages that high specific energy, environment-friendly pollution-free, aboundresources, cheap, turns into mobile electron production
The selection of the energy storage device such as product and electric automobile.Using sulphur as lithium sulfur battery anode material, its theoretical capacity reaches 1675mAh/
G, theoretical energy density can reach 2600 Wh/kg, and lithium-sulfur cell is considered as one of secondary cell most with prospects.So
And the electric conductivity of elemental sulfur is very poor and its intermediate product poorly conductive of charge and discharge process, polysulfide are deposited during the course of the reaction
The shuttle effect the problems such as, cause the utilization rate of positive electrode to be constantly in relatively low level, affect its practical application.
Therefore, the cycle life of lithium-sulfur cell how is improved, improve positive electrode active material utilization and improves it is conductive
Property difference and the problems such as polysulfide shuttle effect as the research emphasis of lithium-sulfur cell.
In the prior art, improving the scheme of lithium-sulfur cell performance mainly has optimization and the sulfur-based positive electrode material of sulfur-based positive electrode structure
The modification of material, generally elemental sulfur and the porous material with high pore structure are carried out by the method filled, mixed or coat
Machinery is compound, anode composite material is formed, so as to improve the cycle performance of the lithium ion conductivity of sulfur-based positive electrode and battery.
Feature interlayer is that a kind of simple and easy method directly solves the shuttle effect of lithium-sulfur cell.Feature interlayer
It is placed among positive pole and barrier film, physical or the shuttle for fixing polysulfide chemically effect can be played, this
Sample just improves the utilization rate of positive active material, so as to improve the overall performance of lithium-sulfur cell.
Such as：Xiaoyan Liu et al. use a kind of Al of new bi-functional2O3Film modifies positive pole, this layer every
The effect of film is compared with general barrier film, with more the function to polysulfide adsorption capacity, is shown smaller capacity and is declined
Subtract, good performance will be attributed to the fact that the energy of physical stop and physical absorption possessed by the interlayer of this layer of bi-functional
Power, circulating battery is set to remain to show preferable specific discharge capacity and coulombic efficiency after 200 weeks.Hang Wei et al. are used
New membrane layer PVDF-C is made in solution, the simple use S powder of positive pole and conductive agent are compound, under 0.5 C multiplying power,
After 500 weeks, specific discharge capacity can also be up to 827.2 mAh/g and 669.1 mAh/g.The source of its performance is mainly attributed to micro-
Hole carbon to the adsorption capacity of polysulfide and the presence of C-C double bond and this layer of PVDF-C electric conductivity.Guangmin Zhou
Et al. using on barrier film directly modification last layer graphene and it is poly- adjoin cough up, the soft-package battery of practical application, flexibility has been made
Also it is tested with pliability, shows good result.The barrier film of this special construction ensure that the steady of battery structure
Qualitative, graphene layer can also be regarded as a kind of collector, and traditional positive electrode is assembled, and turns into better performances
Soft Roll practicality battery.CN106450104A discloses a kind of interlayer being applied in lithium-sulfur cell and preparation method thereof, passes through institute
State method metal oxide is attached to the fiber surface of bacteria cellulose and be carbonized, obtain a kind of new positive pole interlayer.
The interlayer can be used between lithium-sulphur cell positive electrode and barrier film, can suppress the shuttle of more sulphions well, the metal in interlayer
Oxide can also adsorb to more sulphions；Metal oxide also has necessarily to the redox reaction of lithium-sulfur cell simultaneously
Catalytic action, critically important effect is served for the cycle performance for improving lithium-sulfur cell.But above-mentioned technology generally existing
Shortcoming is：Preparation technology is more complicated, so as to cause its production cost high, influences its extensive use in lithium-sulfur cell.And
And the interlayer size prepared is larger, specific surface area is small, difficult its microscopic appearance of control, and volume is still had in charge and discharge process
Swelling, so as to limit its cycle performance and high rate performance.
The content of the invention
Object of the present invention is to provide a kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell.
The present invention uses polyacrylonitrile（PAN）Fiber prepares continuous Nanowire as presoma using electrostatic spinning process
Film is tieed up, by the method to the novel anode feature interlayer obtained by electrostatic spinning PAN films progress carbonization treatment, is improved existing
There is a polysulfide shuttle effect in lithium-sulfur cell existing for technology, the active material utilization in positive electrode is low, causes lithium sulphur
The defects of battery performance is bad.
The purpose of the present invention is achieved through the following technical solutions：
The invention provides a kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell, comprise the following steps：
S1. electrostatic spinning prepares polyacrylonitrile film：
Polyacrylonitrile powder is mixed with DMF, stirring after sealing uses until the transparent uniform solution of acquisition
Electrostatic spinning prepares polyacrylonitrile fibre, and in electrostatic spinning processing, voltage be 15 ~ 25KV, receives apart from being 15 ~ 30cm, rotating speed
For 500 ~ 1000r/min；
S2. electrostatic spinning PAN films are pre-processed, processing operation is：100 ~ 150 DEG C are raised to from room temperature with 3 DEG C/min, then with 12 DEG C
/ min is warming up to 200 ~ 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film；
S3. carbonization treatment：
The electrostatic spinning PAN films of heat treatment in advance in S2 are carbonized, carbonization treatment is：It is warming up to from room temperature with 10 DEG C/min
200 ~ 270 DEG C, 30min is incubated, is then warming up to 650 DEG C with 8 DEG C/min, is incubated 30min, then 700 are warming up to 5 DEG C/min ~
800 DEG C of insulation 1h, are finally down to room temperature；
In S1, the mass ratio of polyacrylonitrile powder and DMF is 1：（1~10）.
Preferably, in S1, the mass ratio of polyacrylonitrile powder and DMF is 1：9.
Preferably, in S1, in electrostatic spinning processing, voltage 15KV, it is 25cm, rotating speed 1000r/min to receive distance.
Preferably, electrostatic spinning PAN films are pre-processed in S2, processing operation is：120 DEG C are raised to from room temperature with 3 DEG C/min, then
270 DEG C are warming up to 12 DEG C/min, is incubated 1h at this temperature, room temperature is finally down to and obtains the electrostatic spinning of heat treatment in advance
PAN films.
Compared with prior art, the invention has the advantages that and beneficial effect：
The present invention prepares PAN films by electrostatic spinning has very abundant network structure pattern, is formed after carbonization treatment
Netlike carbon fiber, the specific surface area of this nanofiber is big, hole is compared with horn of plenty.Applied to feature interlayer, positive pole is placed on
Effect with that can play physical or the shuttle for fixing polysulfide chemically among barrier film, improves positive-active
The utilization rate of material.In charge and discharge process, network structure contribute to reduce electrode electro Chemical during polarization phenomena so as to
Effectively alleviate the volumetric expansion problem of electrode material, avoid volumetric expansion problem due to electrode material to a certain extent and
To negative effect caused by electrode material so that reaction invertibity is improved, and improves the cycle performance of electrode, Jin Erzeng
The chemical property of strong lithium-sulfur cell.
Brief description of the drawings
Fig. 1 is the X-ray diffraction of the carbon fiber positive pole feature interlayer obtained by embodiment 1（XRD）Figure；
Fig. 2 is the ESEM of the carbon fiber positive pole feature interlayer obtained by embodiment 1（SEM）Figure；
Fig. 3 is circulation volume figure of the carbon fiber positive pole feature interlayer under 0.1 C obtained by embodiment 1；
Fig. 4 is constant current impulse electricity figure of the carbon fiber positive pole feature interlayer under 0.1 C obtained by embodiment 1.
Embodiment
Further illustrate the present invention below in conjunction with specific embodiments and the drawings, but embodiment the present invention is not done it is any
The restriction of form.Unless stated otherwise, the reagent of the invention used, method and apparatus is the art conventional reagent, methods
And equipment.
Unless stated otherwise, agents useful for same and material of the present invention are purchased in market.
Case study on implementation 1：
The first step, the preparation of electrostatic spinning PAN films：
PAN powder and DMF solution are pressed 1:9 mass ratio mixing, is placed in 65 DEG C of waters bath with thermostatic control after sealing after mechanical agitation 24h
Obtain electrospun solution.Syringe with PAN/DMF solution is fixed on micro pump, adjust between needle point and receiving barrel away from
From to distance 25cm is set, motor is started, sets rotating speed 1000r/min, high voltage power supply is opened and adjusts to setting
Good voltage 15KV, examines whether spinning is carried out.After spinning 24h, high-voltage electrostatic spinning device is closed, the tunica fibrosa spun is cut out
It is fitted into stand-by in hermetic bag.
Second step, heat treatment in advance electrostatic spinning PAN films：
PAN static spinning membranes are subjected to heat treatment in advance in Muffle furnace, are raised to 120 DEG C from room temperature with 3 DEG C/min first, then with
12 DEG C/min is warming up to 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film.
3rd step, carbonization treatment electrostatic spinning PAN films：
The PAN electrospun fiber membranes of heat treatment in advance are placed in tubular gas stove and are carbonized（Protective atmosphere is nitrogen or argon
Gas）, 270 DEG C are warming up to from room temperature with 10 DEG C/min first, is incubated 30min, is then warming up to 650 DEG C with 8 DEG C/min, insulation
30min, then 800 DEG C of insulation 1h are warming up to 5 DEG C/min, finally it is down to room temperature.
Case study on implementation 2：
The first step, the preparation of electrostatic spinning PAN films：
PAN powder and DMF solution are pressed 1:9 mass ratio mixing, is placed in 65 DEG C of waters bath with thermostatic control after sealing after mechanical agitation 24h
Obtain electrospun solution.Syringe with PAN/DMF solution is fixed on micro pump, adjust between needle point and receiving barrel away from
From to distance 25cm is set, motor is started, sets rotating speed 1000r/min, high voltage power supply is opened and adjusts to setting
Good voltage 15KV, examines whether spinning is carried out.After spinning 24h, high-voltage electrostatic spinning device is closed, the tunica fibrosa spun is cut out
It is fitted into stand-by in hermetic bag.
Second step, heat treatment in advance electrostatic spinning PAN films：
PAN static spinning membranes are subjected to heat treatment in advance in Muffle furnace, are raised to 120 DEG C from room temperature with 3 DEG C/min first, then with
12 DEG C/min is warming up to 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film.
3rd step, carbonization treatment electrostatic spinning PAN films：
The PAN electrospun fiber membranes of heat treatment in advance are placed in tubular gas stove and are carbonized（Protective atmosphere is nitrogen or argon
Gas）, 250 DEG C are warming up to from room temperature with 10 DEG C/min first, is incubated 30min, is then warming up to 650 DEG C with 8 DEG C/min, insulation
30min, then 750 DEG C of insulation 1h are warming up to 5 DEG C/min, finally it is down to room temperature.
Case study on implementation 3：
The first step, the preparation of electrostatic spinning PAN films：
PAN powder and DMF solution are pressed 1:9 mass ratio mixing, is placed in 65 DEG C of waters bath with thermostatic control after sealing after mechanical agitation 24h
Obtain electrospun solution.Syringe with PAN/DMF solution is fixed on micro pump, adjust between needle point and receiving barrel away from
From to distance 25cm is set, motor is started, sets rotating speed 1000r/min, high voltage power supply is opened and adjusts to setting
Good voltage 15KV, examines whether spinning is carried out.After spinning 24h, high-voltage electrostatic spinning device is closed, the tunica fibrosa spun is cut out
It is fitted into stand-by in hermetic bag.
Second step, heat treatment in advance electrostatic spinning PAN films：
PAN static spinning membranes are subjected to heat treatment in advance in Muffle furnace, are raised to 120 DEG C from room temperature with 3 DEG C/min first, then with
12 DEG C/min is warming up to 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film.
3rd step, carbonization treatment electrostatic spinning PAN films：
The PAN electrospun fiber membranes of heat treatment in advance are placed in tubular gas stove and are carbonized（Protective atmosphere is nitrogen or argon
Gas）, 230 DEG C are warming up to from room temperature with 10 DEG C/min first, is incubated 30min, is then warming up to 650 DEG C with 8 DEG C/min, insulation
30min, then 700 DEG C of insulation 1h are warming up to 5 DEG C/min, finally it is down to room temperature.
Case study on implementation 4：
The first step, the preparation of electrostatic spinning PAN films：
PAN powder and DMF solution are pressed 1:9 mass ratio mixing, is placed in 65 DEG C of waters bath with thermostatic control after sealing after mechanical agitation 24h
Obtain electrospun solution.Syringe with PAN/DMF solution is fixed on micro pump, adjust between needle point and receiving barrel away from
From to distance 25cm is set, motor is started, sets rotating speed 1000r/min, high voltage power supply is opened and adjusts to setting
Good voltage 15KV, examines whether spinning is carried out.After spinning 24h, high-voltage electrostatic spinning device is closed, the tunica fibrosa spun is cut out
It is fitted into stand-by in hermetic bag.
Second step, heat treatment in advance electrostatic spinning PAN films：
PAN static spinning membranes are subjected to heat treatment in advance in Muffle furnace, are raised to 120 DEG C from room temperature with 3 DEG C/min first, then with
12 DEG C/min is warming up to 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film.
3rd step, carbonization treatment electrostatic spinning PAN films：
The PAN electrospun fiber membranes of heat treatment in advance are placed in tubular gas stove and are carbonized（Protective atmosphere is nitrogen or argon
Gas）, 270 DEG C are warming up to from room temperature with 10 DEG C/min first, is incubated 30min, is then warming up to 650 DEG C with 8 DEG C/min, insulation
30min, then 720 DEG C of insulation 1h are warming up to 5 DEG C/min, finally it is down to room temperature.
Wherein, Fig. 1 and Fig. 2 is respectively the X-ray diffraction of interlayer material made from embodiment 1（XRD）Figure and ESEM
（SEM）Figure.As can be seen from Figure 1 nearby there is a wider diffraction maximum at 24 °, this characteristic peak and commercial carbon fiber
Characteristic peak is similar, and the electrospinning carbon fiber that this explanation is prepared under the carbonization technique of this experiment has good commercial application prospect.From
It can be seen that shrinkage phenomenon occurs in electrostatic spinning PAN films filament after carbonization treatment in Fig. 2, fiber width increase is netted
Interstitial structure is obvious, has a good microscopic appearance, therefore can largely reduce and filling as the feature interlayer of battery
The phenomenon of polysulfide " shuttle " in discharge process, so as to improve the chemical property of battery.
Fig. 3 and Fig. 4 is respectively circulation volume figure of the material under 0.1 C obtained by embodiment 1 and the perseverance under 0.1 C
Flow impulse electricity figure.The battery using this carbon fiber as interlayer has good cycle performance as can be seen from Figure 3.In 0.1 C
Multiplying power under, initial capacity reaches 1498 mAh/g, and the capacity retained after 200 circulations be 1038 mAh/g, higher in holding
On the premise of discharge capacity, good cycle performance is also ensure that, this is due to that porous carbon fiber structural can not only be liquid
Electrolyte porous ion channel is provided, also can be in charge and discharge process, by aperture come the centre during sorption cycle
Product polysulfide, so as to the overall performance for improving battery.There are two to put down near 2.3 V and 2.0 V as can be seen from Figure 4
Platform, this is two reduction peaks common in lithium-sulfur cell.We can see that maximum discharge capacity is 1498 mAh/ from figure
G, because this holey carbon material has very strong blocking capability, the barrier in charge and discharge process to polysulfide will carry
The utilization rate of high active substance, so as to improve cycle performance and high rate performance.Compared to the electricity for not adding this carbon fiber interlayer
Pond, the battery after addition substantially show more excellent performance.
Claims (6)
1. a kind of preparation method for the positive pole feature interlayer being applied in lithium-sulfur cell, it is characterised in that comprise the following steps：
S1. electrostatic spinning prepares polyacrylonitrile film：
Polyacrylonitrile powder is mixed with DMF, stirring after sealing uses until the transparent uniform solution of acquisition
Electrostatic spinning prepares polyacrylonitrile fibre, and in electrostatic spinning processing, voltage be 15 ~ 25KV, receives apart from being 15 ~ 30cm, rotating speed
For 500 ~ 1000r/min；
S2. electrostatic spinning PAN films are pre-processed, processing operation is：100 ~ 150 DEG C are raised to from room temperature with 3 DEG C/min, then with 12 DEG C
/ min is warming up to 200 ~ 270 DEG C, is incubated 1h at this temperature, is finally down to room temperature and obtains the electrostatic spinning PAN of heat treatment in advance
Film；
S3. carbonization treatment：
The electrostatic spinning PAN films of heat treatment in advance in S2 are carbonized, carbonization treatment is：It is warming up to from room temperature with 10 DEG C/min
200 ~ 270 DEG C, 30min is incubated, is then warming up to 650 DEG C with 8 DEG C/min, is incubated 30min, then 700 are warming up to 5 DEG C/min ~
800 DEG C of insulation 1h, are finally down to room temperature；
In S1, the mass ratio of polyacrylonitrile powder and DMF is 1：（1~10）.
2. preparation method according to claim 1, it is characterised in that in S1, polyacrylonitrile powder and N, N- dimethyl methyl
The mass ratio of acid amides is 1：9.
3. preparation method according to claim 1, it is characterised in that in S1, in electrostatic spinning processing, voltage 15KV,
It is 25cm, rotating speed 1000r/min to receive distance.
4. preparation method according to claim 1, it is characterised in that electrostatic spinning PAN films, processing operation are pre-processed in S2
For：120 DEG C are raised to from room temperature with 3 DEG C/min, then 270 DEG C are warming up to 12 DEG C/min, 1h is incubated at this temperature, finally drops
The electrostatic spinning PAN films of heat treatment in advance are obtained to room temperature.
5. the positive pole feature interlayer that a kind of any described preparation method of Claims 1-4 is prepared.
6. application of the positive pole feature interlayer in lithium-sulfur cell assembling described in claim 5.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037554A (en) * | 2018-06-26 | 2018-12-18 | 长沙矿冶研究院有限责任公司 | A kind of Ni/C composite nano-fiber membrane applied to lithium-sulfur cell and preparation method thereof and lithium-sulfur cell |
| CN109216704A (en) * | 2018-09-12 | 2019-01-15 | 肇庆市华师大光电产业研究院 | A kind of preparation method applied to the modified interlayer of anode in lithium-sulfur cell |
| CN109378430A (en) * | 2018-09-21 | 2019-02-22 | 天津大学 | A kind of lithium-sulfur cell polymer barrier layer material and preparation method |
| CN109576981A (en) * | 2018-11-19 | 2019-04-05 | 肇庆市华师大光电产业研究院 | A kind of MnO2The coaxial composite fiber membrane of/Ni/PVDF, preparation method and application |
| CN109768284A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of lithium-sulfur cell standalone functionality interlayer and preparation method thereof |
| CN109802104A (en) * | 2018-12-24 | 2019-05-24 | 肇庆市华师大光电产业研究院 | A kind of lithium sulfur battery anode material and preparation method thereof |
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| CN110931687A (en) * | 2019-12-10 | 2020-03-27 | 肇庆市华师大光电产业研究院 | Preparation method of lithium-sulfur battery functional interlayer with sheet structure |
| CN111900390A (en) * | 2020-05-29 | 2020-11-06 | 湘潭大学 | Metallic tin and carbon nanotube co-doped lithium-sulfur battery interlayer material and preparation method and application thereof |
| CN115106057A (en) * | 2022-05-12 | 2022-09-27 | 山西新华防化装备研究院有限公司 | Preparation method of high-temperature gas adsorption material |
| CN115377606A (en) * | 2022-08-23 | 2022-11-22 | 北京化工大学 | High-performance chitosan/polyacrylonitrile diaphragm for multifunctional lithium-sulfur battery and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882588A (en) * | 2015-06-08 | 2015-09-02 | 中国工程物理研究院化工材料研究所 | Carbon fiber/carbon nanotube composite membrane as well as preparation method and application thereof |
| CN104900830A (en) * | 2015-06-29 | 2015-09-09 | 北京理工大学 | Lithium-sulfur battery with carbon fiber cloth as barrier layer |
| CN107083584A (en) * | 2017-04-28 | 2017-08-22 | 浙江理工大学 | A kind of electrostatic spinning carbonization manufacture method of the pure carbon nano-fiber of foldable flexible |
-
2017
- 2017-09-27 CN CN201710890665.8A patent/CN107732104A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882588A (en) * | 2015-06-08 | 2015-09-02 | 中国工程物理研究院化工材料研究所 | Carbon fiber/carbon nanotube composite membrane as well as preparation method and application thereof |
| CN104900830A (en) * | 2015-06-29 | 2015-09-09 | 北京理工大学 | Lithium-sulfur battery with carbon fiber cloth as barrier layer |
| CN107083584A (en) * | 2017-04-28 | 2017-08-22 | 浙江理工大学 | A kind of electrostatic spinning carbonization manufacture method of the pure carbon nano-fiber of foldable flexible |
Non-Patent Citations (1)
| Title |
|---|
| JINLI HOU 等: "《Fabrication and Characterization of Non-Woven Carbon Nanofibers as Functional Interlayers for Rechargeable Lithium Sulfur Battery》", 《JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY》 * |
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| CN109037554A (en) * | 2018-06-26 | 2018-12-18 | 长沙矿冶研究院有限责任公司 | A kind of Ni/C composite nano-fiber membrane applied to lithium-sulfur cell and preparation method thereof and lithium-sulfur cell |
| CN109216704A (en) * | 2018-09-12 | 2019-01-15 | 肇庆市华师大光电产业研究院 | A kind of preparation method applied to the modified interlayer of anode in lithium-sulfur cell |
| CN109378430A (en) * | 2018-09-21 | 2019-02-22 | 天津大学 | A kind of lithium-sulfur cell polymer barrier layer material and preparation method |
| CN109576981A (en) * | 2018-11-19 | 2019-04-05 | 肇庆市华师大光电产业研究院 | A kind of MnO2The coaxial composite fiber membrane of/Ni/PVDF, preparation method and application |
| CN109802104A (en) * | 2018-12-24 | 2019-05-24 | 肇庆市华师大光电产业研究院 | A kind of lithium sulfur battery anode material and preparation method thereof |
| CN109768284A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of lithium-sulfur cell standalone functionality interlayer and preparation method thereof |
| CN110877902A (en) * | 2019-09-09 | 2020-03-13 | 华北水利水电大学 | Preparation method and application of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber |
| CN110877902B (en) * | 2019-09-09 | 2022-11-01 | 华北水利水电大学 | Preparation method and application of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber |
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| CN111900390B (en) * | 2020-05-29 | 2022-04-01 | 湘潭大学 | Metallic tin and carbon nanotube co-doped lithium-sulfur battery interlayer material and preparation method and application thereof |
| CN115106057A (en) * | 2022-05-12 | 2022-09-27 | 山西新华防化装备研究院有限公司 | Preparation method of high-temperature gas adsorption material |
| CN115377606A (en) * | 2022-08-23 | 2022-11-22 | 北京化工大学 | High-performance chitosan/polyacrylonitrile diaphragm for multifunctional lithium-sulfur battery and preparation method and application thereof |
| CN115377606B (en) * | 2022-08-23 | 2023-12-12 | 北京化工大学 | High-performance chitosan/polyacrylonitrile membrane for multifunctional lithium sulfur battery, and preparation method and application thereof |
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