CN109755548A - A kind of carbon aerogel load selenium composite material and preparation method and lithium/sodium selenium cell - Google Patents
A kind of carbon aerogel load selenium composite material and preparation method and lithium/sodium selenium cell Download PDFInfo
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- CN109755548A CN109755548A CN201910179668.XA CN201910179668A CN109755548A CN 109755548 A CN109755548 A CN 109755548A CN 201910179668 A CN201910179668 A CN 201910179668A CN 109755548 A CN109755548 A CN 109755548A
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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
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- 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 provides a kind of carbon aerogel load selenium composite materials, and including carbon aerogels and the active material being carried in the carbon aerogels micropore, the active material is selected from one of sulphur, Se particle and vulcanization Se particle or a variety of.Present invention utilizes the adsorptivities of carbon aerogels porous structure, and active material particle is limited in the microcellular structure of carbon aerogels, to significantly reduce the shuttle effect of more selenides.Meanwhile the method is easy to operate, and it is easy to implement, there is the feasibility of industrialized production；And impurity will not be generated in composite material synthesis process to ensure that the comprehensive performance of composite material.
Description
Technical field
The invention belongs to field of material technology, and in particular to a kind of carbon aerogel load selenium composite material and preparation method
And lithium/sodium selenium cell.
Background technique
Currently, lithium ion battery has been widely used for electric car, portable electronic device and large-scale energy storage device, but
It is that its energy density is not high enough, limits its further development.Lithium-sulfur cell is because it is with high theoretical specific capacity (1672mA
hg-1) and high-energy density (2600W h kg-1) and be concerned, and be considered as most promising next-generation high energy energy storage system
One of system.Simultaneously as sodium rich reserves, relative low price, sodium-ion battery and room temperature sodium-sulphur batter are also widely studied.
But lithium-sulfur cell and sodium-sulphur battery are understood in cyclic process along with the volume expansion of sulphur and the shuttle effect of polysulfide,
Cause capacity attenuation serious, limits its practical application.
Congeners of the selenium as sulphur has lot of advantages, such as higher electronic conductivity (being 20 times of sulphur), high theoretical
Volume capacity (3268mA h cm-3), also it is widely studied.For lithium selenium and sodium selenium cell, the volume expansion of selenium and more selenides
Shuttle effect compared with sulphur than can be much smaller, while selenium is more suitable for being supported in carbon material.Researcher has explored many carbon materials
Material, such as carbon nanotube, carbon nano-fiber etc., but it is less as the report of base load selenium for carbon aerogels.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of carbon aerogel load selenium composite material and its
Preparation method and lithium/sodium selenium cell, carbon aerogel load selenium composite material provided by the invention is by being limited in carbon material for selenium
Microcellular structure in, can largely reduce shuttle effect, improve the cyclical stability of battery.
The present invention provides a kind of carbon aerogel load selenium composite material, including carbon aerogels and it is carried on the carbon gas
Active material in gel pore, the active material are selected from one of sulphur, Se particle and vulcanization Se particle or a variety of.
Preferably, the micropore size of the carbon aerogels is 0.01~2nm, and the partial size of carbon particle is in the carbon aerogels
10~30nm, specific surface area are 500~2000m2/ g, micropore specific area ratio are 60%~90%.
Preferably, the mass ratio of the carbon aerogels and the active material is 2:1~1:3.
Preferably, the partial size of the Se particle is 0~10nm, and is not zero, the partial size of the vulcanization Se particle is 0~
10nm, and be not zero.
The present invention also provides a kind of preparation methods of above-mentioned composite material, comprising the following steps:
It after carbon aerogels after grinding are mixed with active material powder, is heat-treated under vacuum conditions, obtains carbon
Aerogel carried selenium composite material.
Preferably, the carbon aerogels are selected from phenolic resin base carbon aerogel or cellulose base carbon aerogels.
Preferably, when the active material is Se particle, the temperature of heat treatment is 260~380 DEG C, the time of heat treatment
It is 10~24 hours
When the active material is vulcanization Se particle, the temperature of the heat treatment is 160~240 DEG C, heat treatment when
Between be 10~24 hours
The present invention also provides a kind of lithium/sodium selenium cell, including anode, cathode, diaphragm and electrolyte, the anode is by wrapping
Above-mentioned composite material is included to be prepared.
Compared with prior art, the present invention provides a kind of carbon aerogel load selenium composite material, including carbon aerogels with
And it is carried on the active material in the carbon aerogels micropore, the active material is in sulphur, Se particle and vulcanization Se particle
It is one or more.Present invention utilizes the adsorptivities of carbon aerogels porous structure, and active material particle is limited in carbon airsetting
In the microcellular structure of glue, to significantly reduce the shuttle effect of more selenides.Meanwhile the method is easy to operate, and it is easy to implement, have
The feasibility of industrialized production；And impurity will not be generated in composite material synthesis process to ensure that the synthesis of composite material
Performance.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of carbon aerogel load selenium composite material provided by the invention；
Fig. 2 is selenium/carbon aerogel composite material scanning electron microscope image；
Fig. 3 is selenium/carbon aerogel composite material images of transmissive electron microscope；
Fig. 4 is selenium/carbon aerogel composite material XRD diagram picture；
Fig. 5 is selenium/carbon aerogel composite material N2Adsorption desorption curve；
Fig. 6 is sodium selenium cell circulation performance curve；
Fig. 7 is sodium selenium cell cycle charge discharge capacity curve (specific discharge capacity based on selenium)；
Fig. 8 is selenium disulfide/carbon aerogel composite material scanning electron microscope image；
Fig. 9 is selenium disulfide/carbon aerogel composite material images of transmissive electron microscope；
Figure 10 is selenium disulfide/carbon aerogel composite material XRD diagram picture；
Figure 11 is sodium-selenium disulfide battery cycle charge-discharge capacity curve (specific discharge capacity based on composite material)；
Figure 12 is the sodium selenium cell circulation performance curve that embodiment 3 changes active material and carbon aerogels ratio.
Specific embodiment
The present invention provides a kind of carbon aerogel load selenium composite material, including carbon aerogels and it is carried on the carbon gas
Active material in gel pore, the active material are selected from one of sulphur, Se particle and vulcanization Se particle or a variety of.
Carbon aerogel load selenium composite material provided by the invention includes carbon aerogels, using carbon aerogels as substrate.?
In the present invention, to the preparation methods of the carbon aerogels there is no specifically limited, well known to a person skilled in the art preparation methods
?.
The carbon aerogels are selected from phenolic resin base carbon aerogel or cellulose base carbon aerogels, preferably phenolic resin base
Carbon aerogels.
The phenolic resin base carbon aerogel is preferably prepared as follows in the present invention:
Using resorcinol and furfural as carbon source, using hexamethylenetetramine as organic basic catalyst, after mixing, carry out anti-
It answers, obtains phenolic resin gel；
Then under inert gas conditions, the phenolic resin gel is heat-treated, obtains heat-treated products；
It after the heat-treated products are activated with potassium hydroxide, then is heat-treated, obtains carbon aerogels.
The micropore size of the carbon aerogels be 0.01~2nm, preferably 0.05~1.5nm, further preferably 0.5~
1.0nm, in the carbon aerogels partial size of carbon particle be 10~30nm, preferably 15~25nm, further preferably 17~
22nm, specific surface area are 500~2000m2/ g, preferably 1000~1500m2/ g, micropore specific area ratio be 60%~
90%, preferably 70%~80%, further preferably 72%~78%.
Carbon aerogel load selenium composite material provided by the invention further includes the work being carried in the carbon aerogels micropore
Property substance, the active material is selected from sulphur, Se particle and vulcanization one of Se particle or a variety of.The present invention is to the sulphur, selenium
Particle and vulcanization one of Se particle or a variety of sources are general commercially available there is no specifically limited.
The partial size of the Se particle is 0~10nm, and is not zero, and the partial size of the vulcanization Se particle is 0~10nm, and not
It is zero.Sulphur is the congeners of selenium, has similar chemical property, therefore be applied equally to such method.
The mass ratio of the carbon aerogels and the active material is 2:1~1:3, preferably 1:1.
Simple substance Se particle, can be limited in carbon airsetting by carbon aerogels micropore specific area with higher of the present invention
In glue microcellular structure, to limit the shuttle effect of more selenides, the cycle performance of battery is improved.
The present invention also provides a kind of preparation methods of above-mentioned carbon aerogel load selenium composite material, comprising the following steps:
It after carbon aerogels after grinding are mixed with active material powder, is heat-treated under vacuum conditions, obtains carbon
Aerogel carried selenium composite material.
Referring specifically to Fig. 1, Fig. 1 is that the preparation process flow of carbon aerogel load selenium composite material provided by the invention is illustrated
Figure.
The above-mentioned carbon aerogels being prepared are ground, there is no special limits for method of the present invention to the grinding
System, well known to a person skilled in the art grinding method.Preferably, it can be ground using grinder.
Then, the carbon aerogels after grinding are mixed with active material powder and is ground, obtain mixed-powder；
The mixed-powder is heat-treated under vacuum conditions, obtains carbon aerogel load selenium composite material.
Specifically, mixed-powder is placed in quartz ampoule.The quartz ampoule for installing sample is evacuated and is sealed, is put into
In Muffle furnace, it is heat-treated.After heat treatment, silica valve broken to obtain selenium disulfide/carbon aerogels compound
Material.
Wherein, when the active material is Se particle, the temperature of heat treatment is 260~380 DEG C, preferably 280~360
DEG C, further preferably 300~340 DEG C, the time of heat treatment is 10~24 hours；
When the active material is vulcanization Se particle, the temperature of the heat treatment is 160~240 DEG C, preferably 180~
220 DEG C, further preferably 190~210 DEG C, the time of heat treatment are 10~24 hours.
Above-mentioned carbon aerogel load selenium composite material provided by the invention can be used as lithium/sodium selenium cell positive-active material
Material, is prepared as lithium/sodium selenium cell anode.The specific preparation method present invention is not particularly limited, those skilled in the art
Method well known to member.
The present invention also provides a kind of lithium/sodium selenium cell, including anode, cathode, diaphragm and electrolyte, the anode is by wrapping
Above-mentioned composite material is included to be prepared.There is no carbon limitation, those skilled in the art for preparation method of the present invention to the anode
Method well known to member.Preferably, composite material, conductive agent, binder are uniformly mixed and are coated on aluminium foil, is dried to obtain
Anode.The present invention is not particularly limited the selection of the cathode, diaphragm and electrolyte, and well known to a person skilled in the art types
?.
Composite material provided by the invention is by passing through melting osmo active substance after the carbon aerogels preparation of high-specific surface area
Particle is prepared, and raw material composition includes: carbon aerogels, active material.The preparation process of carbon aerogels includes: to pass through colloidal sol
Gel method, constant pressure and dry, high temperature cabonization, activation；Work is loaded in carbon aerogels micropore by vacuum fusion osmosis
Property material particle.This composite material is applied to lithium/sodium selenium cell by the present invention, this composite material, conductive agent, binder are mixed
It is coated uniformly on aluminium foil, obtains positive electrode.Composite material and preparation method thereof provided by the invention is simple, and controllable degree is high, uses
When lithium/sodium selenium cell anode, excellent electric property and higher capacity are shown.
For a further understanding of the present invention, below with reference to embodiment to carbon aerogel load selenium composite wood provided by the invention
Material and preparation method thereof and lithium/sodium selenium cell are illustrated, and protection scope of the present invention is not limited by the following examples.
Embodiment 1:
The present embodiment the following steps are included:
1) phenolic resin base carbon aerogel is selected in the present embodiment.The preparation of carbon aerogels with patent CN108609607A,
It is denoted as NCA.Specifically the preparation method comprises the following steps: selecting resorcinol and furfural as carbon source, hexamethylenetetramine is organic basic catalysis
The volume ratio of agent, resorcinol and furfural is 1:1.5, and the mass ratio of resorcinol and catalyst is 1:0.001.It is sufficiently stirred mixed
It is reacted 7 days at 75 DEG C after conjunction, obtains phenolic resin gel.It then takes out in the tube furnace of logical argon gas with the liter of 5 DEG C/min
Warm rate is raised to 900 DEG C and keeps 3h.After taking out the carbon aerogels being carbonized after cooling, it is activated using potassium hydroxide
Processing.The mass ratio of potassium hydroxide and carbon aerogels used is 5:1, and potassium hydroxide and carbon aerogels are mixed, and suitable quantity of water is added,
A static evening.800 DEG C are raised to the heating rate of 5 DEG C/min in the tube furnace of logical argon gas after drying and keeps 2h, after cooling
It takes out carbon aerogels and is washed with distilled water the carbon aerogels for obtaining high-purity high-specific surface area for several times.
2) carbon aerogels prepared in step 1) are put into the revolving speed ball milling 3h in ball mill with 300r/min.
3) 50mg carbon aerogels are weighed and 50mg elemental selenium is uniformly mixed, is fully ground, is placed in quartz ampoule.
4) quartz ampoule for installing sample is evacuated and is sealed, be put into Muffle furnace, be warming up to 260 with 3 DEG C/min
DEG C and keep the temperature 10h, silica valve is broken and obtains selenium/carbon aerogel composite material.
5) selenium/carbon aerogel composite material, carbon black, binder PVDF are coated on aluminium foil by the mass ratio of 7:2:1,
The dry 8h in 75 DEG C of vacuum ovens obtains lithium/sode cell positive electrode, and is dressed up in the glove box full of argon gas
CR2032 button cell.
Use scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), N2Adsorption desorption is bent
The methods of line, electrochemical workstation characterize selenium/carbon aerogel composite material structure and morphology as well as lithium/sodium selenium cell
The cycle performance of positive electrode.See Fig. 2~Fig. 7, result is as follows:
1) SEM test result shows: carbon aerogels of the present invention have the network structure of 3D interconnection, and negative in selenium
Its structure does not have significant change after load.
2) TEM test result shows: in selenium/carbon aerogel composite material of the present invention, selenium uniformly penetrates into carbon
In the pore structure of aeroge.
3) XRD test result shows: carbon aerogels have at 2 θ=25 ° at one wider stronger sharp side and 2 θ=44 °
There is a weaker sharp side, illustrates that carbon aerogels have lower crystallinity, belong to amorphous carbon.The X-ray diffraction of elemental selenium
Peak penetrates into carbon aerogels structure at 23.5 °, 29.8 °, 41.3 °, 43.6 °, 45.4 °, 51.8 °, 55.7 ° and 61.5 ° in selenium
Afterwards, the diffraction maximum of selenium disappears, and illustrates that selenium is dispersed in well in the pore structure of carbon aerogels.
4)N2Adsorption desorption Dependence Results show: after loading selenium, specific surface area is decreased obviously carbon aerogels, with it is above-mentioned its
He is consistent at test result, shows that selenium uniformly occupies the pore structure of carbon aerogels.
5) selenium/carbon aerogel composite material is assembled into sode cell, measured when current density is 0.1A/g, sode cell is put
Electric specific capacity can achieve 1084mAh/g, show high capacity.In the test of long charge and discharge cycles, work as current density
When for 0.5A/g, it still may remain in the capacity of 400mAh/g after 800 circle of sodium selenium cell circulation, decay smaller.It follows that
Simple substance Se particle is limited in the micropore of carbon aerogels material to the shuttle effect that can effectively inhibit selenium electrode, to reduce
Battery capacity decaying, makes battery have better long circulating performance.Fig. 7 is that sodium selenium cell cycle charge discharge capacity curve (is based on
The specific discharge capacity of selenium).Wherein, since battery efficiency is close to 100%, so the charging and discharging curve of battery weighs substantially
It closes.
Embodiment 2:
The present embodiment the following steps are included:
1) phenolic resin base carbon aerogel is selected in the present embodiment.The preparation of carbon aerogels with patent CN108609607A,
It is denoted as NCA.Specifically the preparation method comprises the following steps: selecting resorcinol and furfural as carbon source, hexamethylenetetramine is organic basic catalysis
The volume ratio of agent, resorcinol and furfural is 1:1.5, and the mass ratio of resorcinol and catalyst is 1:0.001.It is sufficiently stirred mixed
It is reacted 7 days at 75 DEG C after conjunction, obtains phenolic resin gel.It then takes out in the tube furnace of logical argon gas with the liter of 5 DEG C/min
Warm rate is raised to 900 DEG C and keeps 3h.After taking out the carbon aerogels being carbonized after cooling, it is activated using potassium hydroxide
Processing.The mass ratio of potassium hydroxide and carbon aerogels used is 5:1, and potassium hydroxide and carbon aerogels are mixed, and suitable quantity of water is added,
A static evening.800 DEG C are raised to the heating rate of 5 DEG C/min in the tube furnace of logical argon gas after drying and keeps 2h, after cooling
It takes out carbon aerogels and is washed with distilled water the carbon aerogels for obtaining high-purity high-specific surface area for several times.
2) carbon aerogels prepared in step 1) are put into the revolving speed ball milling 3h in ball mill with 300r/min.
3) 50mg carbon aerogels are weighed and 50mg selenium disulfide is uniformly mixed, is fully ground, is placed in quartz ampoule.
4) quartz ampoule for installing sample is evacuated and is sealed, be put into Muffle furnace, be warming up to 180 with 3 DEG C/min
DEG C and keep the temperature 10h, silica valve is broken and obtains selenium disulfide/carbon aerogel composite material.
5) selenium disulfide/carbon aerogel composite material, carbon black, binder PVDF are coated in by the mass ratio of 7:2:1
On aluminium foil, the dry 8h in 75 DEG C of vacuum ovens obtains lithium/sode cell positive electrode, and in the glove box full of argon gas
Dressed up CR2032 button cell.
It is characterized using the methods of scanning electron microscope (SEM), transmission electron microscope (TEM), electrochemical workstation
Selenium disulfide/carbon aerogel composite material structure and morphology as well as lithium/sode cell positive electrode cycle performance.Referring to
Fig. 8~Figure 11.Its result is as follows:
1) SEM test result shows: carbon aerogels of the present invention have the network structure of 3D interconnection, and in two sulphur
Its structure does not have significant change after changing selenium load.
2) TEM test result shows: in selenium disulfide/carbon aerogel composite material of the present invention, selenium disulfide is equal
In the even pore structure for penetrating into carbon aerogels.
3) XRD test result shows after selenium disulfide penetrates into carbon aerogels structure, the diffraction maximum of selenium disulfide selenium
It disappears, illustrates that selenium disulfide is dispersed in well in the pore structure of carbon aerogels.
4) selenium disulfide/carbon aerogel composite material is assembled into sode cell, selenium disulfide has theoretical appearance more higher than selenium
Amount.It measures when current density is 0.1A/g, the specific discharge capacity of sode cell can achieve 700mAh/g or more (based on composite wood
The quality of material), show high capacity.In the test of long charge and discharge cycles, when current density is 0.5A/g, sodium/bis-
Selenium sulfide circulating battery 800 still may remain in the capacity of 300mAh/g after enclosing, decay smaller.Figure 11 is sodium-selenium disulfide
Battery cycle charge-discharge capacity curve (specific discharge capacity based on composite material).Wherein, since battery efficiency is close
100%, so the charging and discharging curve of battery essentially coincides.
Embodiment 3:
The present embodiment the following steps are included:
1) phenolic resin base carbon aerogel is selected in the present embodiment.The preparation of carbon aerogels with patent CN108609607A,
It is denoted as NCA.Specifically the preparation method comprises the following steps: selecting resorcinol and furfural as carbon source, hexamethylenetetramine is organic basic catalysis
The volume ratio of agent, resorcinol and furfural is 1:1.5, and the mass ratio of resorcinol and catalyst is 1:0.001.It is sufficiently stirred mixed
It is reacted 7 days at 75 DEG C after conjunction, obtains phenolic resin gel.It then takes out in the tube furnace of logical argon gas with the liter of 5 DEG C/min
Warm rate is raised to 900 DEG C and keeps 3h.After taking out the carbon aerogels being carbonized after cooling, it is activated using potassium hydroxide
Processing.The mass ratio of potassium hydroxide and carbon aerogels used is 5:1, and potassium hydroxide and carbon aerogels are mixed, and suitable quantity of water is added,
A static evening.800 DEG C are raised to the heating rate of 5 DEG C/min in the tube furnace of logical argon gas after drying and keeps 2h, after cooling
It takes out carbon aerogels and is washed with distilled water the carbon aerogels for obtaining high-purity high-specific surface area for several times.
2) carbon aerogels prepared in step 1) are put into the revolving speed ball milling 3h in ball mill with 300r/min.
3) 50mg carbon aerogels are weighed and 100mg elemental selenium is uniformly mixed, is fully ground, is placed in quartz ampoule, is denoted as sample
Product 1.It weighs 100mg carbon aerogels and 50mg elemental selenium is uniformly mixed, be fully ground, be placed in quartz ampoule, be denoted as sample 2.
4) quartz ampoule for installing sample is evacuated and is sealed, be put into Muffle furnace, be warming up to 260 with 3 DEG C/min
DEG C and keep the temperature 10h, silica valve is broken and obtains selenium/carbon aerogel composite material.
5) selenium/carbon aerogel composite material, carbon black, binder PVDF are coated on aluminium foil by the mass ratio of 7:2:1,
The dry 8h in 75 DEG C of vacuum ovens obtains lithium/sode cell positive electrode, and is dressed up in the glove box full of argon gas
CR2032 button cell.As shown in figure 12, for the ratio of different carbon aerogels material and active material, 1:1 ratio is followed
Ring performance is best.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of carbon aerogel load selenium composite material, which is characterized in that including carbon aerogels and be carried on the carbon airsetting
Active material in glue micropore, the active material are selected from one of sulphur, Se particle and vulcanization Se particle or a variety of.
2. composite material according to claim 1, which is characterized in that the micropore size of the carbon aerogels be 0.01~
2nm, the partial size of carbon particle is 10~30nm in the carbon aerogels, and specific surface area is 500~2000m2/ g, micropore specific area
Ratio is 60%~90%.
3. composite material according to claim 1, which is characterized in that the quality of the carbon aerogels and the active material
Than for 2:1~1:3.
4. composite material according to claim 1, which is characterized in that the partial size of the Se particle is 0~10nm, and is not
Zero, the partial size of the vulcanization Se particle is 0~10nm, and is not zero.
5. a kind of preparation method of the composite material as described in Claims 1 to 4 any one, which is characterized in that including following
Step:
It after carbon aerogels after grinding are mixed with active material powder, is heat-treated under vacuum conditions, obtains carbon airsetting
Glue loads selenium composite material.
6. preparation method according to claim 5, which is characterized in that the carbon aerogels are selected from the carbon airsetting of phenolic resin base
Glue or cellulose base carbon aerogels.
7. preparation method according to claim 5, which is characterized in that when the active material is Se particle, heat treatment
Temperature be 260~380 DEG C, time of heat treatment is 10~24 hours；
When the active material is vulcanization Se particle, the temperature of the heat treatment is 160~240 DEG C, and the time of heat treatment is
10~24 hours.
8. a kind of lithium/sodium selenium cell, which is characterized in that including anode, cathode, diaphragm and electrolyte, the anode is by including such as
Composite material described in Claims 1 to 4 any one is prepared.
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| CN111048779A (en) * | 2019-12-27 | 2020-04-21 | 中国科学技术大学 | Cobalt selenide/carbon aerogel composite material, and preparation method and application thereof |
| CN111403659A (en) * | 2020-03-18 | 2020-07-10 | 中国科学技术大学 | Ultrahigh-specific-surface-area carbon aerogel coating diaphragm intermediate layer for lithium-sulfur battery, preparation method of ultrahigh-specific-surface-area carbon aerogel coating diaphragm intermediate layer and lithium-sulfur battery |
| CN111740091A (en) * | 2020-07-08 | 2020-10-02 | 中国科学院山西煤炭化学研究所 | Carbon aerogel @ sulfur composite material for lithium-sulfur battery positive electrode and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762364A (en) * | 2014-02-12 | 2014-04-30 | 上海理工大学 | Sulfur-based lithium ion battery electrode material and preparation method thereof |
| CN106129384A (en) * | 2016-09-07 | 2016-11-16 | 中南大学 | The complex of carbon/sulfur of a kind of manganese dioxide nano-plates cladding, preparation method and applications |
| CN106450195A (en) * | 2016-10-18 | 2017-02-22 | 中国科学院化学研究所 | Positive electrode material of lithium sulfur battery, preparation method of positive electrode material and lithium sulfur battery containing positive electrode material |
| CN108609607A (en) * | 2018-07-26 | 2018-10-02 | 中国科学技术大学 | A kind of carbon aerogels and preparation method thereof with superhigh specific surface area |
-
2019
- 2019-03-08 CN CN201910179668.XA patent/CN109755548A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762364A (en) * | 2014-02-12 | 2014-04-30 | 上海理工大学 | Sulfur-based lithium ion battery electrode material and preparation method thereof |
| CN106129384A (en) * | 2016-09-07 | 2016-11-16 | 中南大学 | The complex of carbon/sulfur of a kind of manganese dioxide nano-plates cladding, preparation method and applications |
| CN106450195A (en) * | 2016-10-18 | 2017-02-22 | 中国科学院化学研究所 | Positive electrode material of lithium sulfur battery, preparation method of positive electrode material and lithium sulfur battery containing positive electrode material |
| CN108609607A (en) * | 2018-07-26 | 2018-10-02 | 中国科学技术大学 | A kind of carbon aerogels and preparation method thereof with superhigh specific surface area |
Non-Patent Citations (3)
| Title |
|---|
| SHAOFENG JIANG等: "Selenium encapsulated into 3D interconnected hierarchical porous carbon aerogels for lithium-selenium batteries with high rate performance and cycling stability", 《JOURNAL OF POWER SOURCES》 * |
| ZHIAN ZHANG等: "Selenium sulfide@mesoporous carbon aerogel composite for rechargeable lithium batteries with good electrochemical performance", 《JOURNAL OF POWER SOURCES》 * |
| ZHIWEI ZHANG等: "3D Interconnected Porous Carbon Aerogels as Sulfur Immobilizers for Sulfur Impregnation for Lithium-Sulfur Batteries with High Rate Capability and Cycling Stability", 《ADV. FUNCT. MATER.》 * |
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| CN113620258A (en) * | 2021-07-14 | 2021-11-09 | 郑小青 | Selenium sulfide composite powder for hair washing |
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Application publication date: 20190514 |