CN117117100A - Method for preparing sodium ion battery cathode material by using yeast cell wall - Google Patents
Method for preparing sodium ion battery cathode material by using yeast cell wall Download PDFInfo
- Publication number
- CN117117100A CN117117100A CN202310616288.4A CN202310616288A CN117117100A CN 117117100 A CN117117100 A CN 117117100A CN 202310616288 A CN202310616288 A CN 202310616288A CN 117117100 A CN117117100 A CN 117117100A
- Authority
- CN
- China
- Prior art keywords
- yeast cell
- cell wall
- ion battery
- sodium ion
- yeast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000005253 yeast cell Anatomy 0.000 title claims abstract description 69
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000010406 cathode material Substances 0.000 title claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000002244 precipitate Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000004108 freeze drying Methods 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 238000000197 pyrolysis Methods 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 239000006258 conductive agent Substances 0.000 claims abstract description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000007773 negative electrode material Substances 0.000 claims description 11
- 239000000084 colloidal system Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000011889 copper foil Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000003763 carbonization Methods 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000002135 nanosheet Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 13
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 9
- 241000235342 Saccharomycetes Species 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 239000010405 anode material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002064 nanoplatelet Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 229920001503 Glucan Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000057 Mannan Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
Abstract
The invention discloses a method for preparing a sodium ion battery cathode material by using a yeast cell wall, which comprises the steps of carrying out freeze drying treatment on a yeast liquid to obtain yeast dry powder, mixing the yeast dry powder with an acid solution with the concentration of 1% according to the proportion of 1:10, uniformly stirring, standing for 2 hours, centrifugally separating the mixture to obtain a precipitate, washing the precipitate with deionized water until the pH value is close to 7, and then carrying out freeze drying to obtain yeast cell wall powder; placing yeast cell wall powder into a pyrolysis furnace, and cooling to room temperature under the protection of nitrogen to obtain carbonized yeast cell walls; placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, and then cooling to room temperature to obtain a nitrided yeast cell wall; the nitrided yeast cell wall, the conductive agent and the binding agent are mixed according to a certain proportion, uniformly stirred and coated on a current collector, and then dried and compacted to obtain the sodium ion battery cathode, wherein the yeast cell wall is used as a raw material, and the source is wide, the cost is low, and the sodium ion battery cathode has good biodegradability.
Description
Technical Field
The invention relates to the technical field of battery material preparation, in particular to a method for preparing a sodium ion battery anode material by using a yeast cell wall.
Background
The yeast cell wall is a biomass material with a natural porous structure and consists of glucan, mannan, protein and the like. In recent years, researchers find that yeast cell walls have potential application values in energy storage, environmental management and the like. Sodium ion batteries are widely focused as novel energy storage equipment due to the characteristics of three-rich resources, low cost, excellent safety performance and the like. One of the key components of sodium ion batteries is a negative electrode material, and the currently commonly used negative electrode materials include hard carbon, lithium titanate, silicon and the like. However, these materials still have problems in terms of cycle performance, energy density, cost, and environmental impact. Therefore, the development of the innovative sodium ion battery anode material has important significance. For this purpose, a corresponding technical solution needs to be designed to solve.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a method for preparing a sodium ion battery anode material by using a yeast cell wall, which solves the technical problems of the sodium ion battery anode material in cycle performance, energy density, cost and environmental influence.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: a method for preparing a sodium ion battery cathode material by using a yeast cell wall comprises the following preparation steps:
s1, extracting yeast cell walls: lyophilizing yeast solution to obtain yeast dry powder, mixing yeast dry powder with 1% acid solution at a ratio of 1:10, stirring, standing for 2 hr, centrifuging to obtain precipitate, washing the precipitate with deionized water until pH is close to 7, and lyophilizing to obtain yeast cell wall powder;
s2, high-temperature carbonization: placing yeast cell wall powder into a pyrolysis furnace, heating to 800-1000 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
s3, nitriding: placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 600-800 ℃, keeping for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
s4, preparing a negative electrode of the sodium ion battery: and mixing the nitrided yeast cell walls with a conductive agent and a binding agent according to a certain proportion, uniformly stirring, coating on a current collector, and then drying and compacting to obtain the negative electrode of the sodium ion battery.
Preferably, the conductive agent is a nanoscale carbon material, and comprises one or more of carbon nanotubes, graphene or carbon nanoplatelets.
Preferably, the binder has a high viscosity organic colloid including one or more of polymer colloid, starch colloid, natural rubber, acrylate copolymer or polyvinyl alcohol.
Preferably, the acid solution is one of hydrochloric acid, sulfuric acid or hydrofluoric acid.
Preferably, the freeze-drying temperature is between-50 ℃ and-80 ℃.
Preferably, the method of washing to a pH value close to 7 uses deionized water or pure water or the like.
Preferably, the gas in the pyrolysis furnace is one of nitrogen, hydrogen, or an inert gas.
Preferably, the current collector is one of copper foil, copper mesh, aluminum foil, conductive fiber, or stainless steel plate.
(III) beneficial effects
The method for preparing the sodium ion battery cathode material by using the yeast cell wall has positive effects on the sodium ion battery cathode, takes the yeast cell wall as a raw material, has wide sources, low cost and good biodegradability, reduces environmental burden, and can improve the cycle performance of the sodium ion battery by high-temperature carbonization and nitridation treatment, the method is simple and easy to operate, can realize mass production, is expected to promote the research and development of the sodium ion battery cathode material, can be applied to low-cost environment-friendly sodium ion batteries, and is beneficial to solving the key problems in the energy storage field.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a technical scheme that: a method for preparing a sodium ion battery cathode material by using a yeast cell wall comprises the following preparation steps:
s1, extracting yeast cell walls: lyophilizing yeast solution to obtain yeast dry powder, mixing yeast dry powder with 1% acid solution at a ratio of 1:10, stirring, standing for 2 hr, centrifuging to obtain precipitate, washing the precipitate with deionized water until pH is close to 7, and lyophilizing to obtain yeast cell wall powder;
s2, high-temperature carbonization: placing yeast cell wall powder into a pyrolysis furnace, heating to 800-1000 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
s3, nitriding: placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 600-800 ℃, keeping for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
s4, preparing a negative electrode of the sodium ion battery: and mixing the nitrided yeast cell walls with a conductive agent and a binding agent according to a certain proportion, uniformly stirring, coating on a current collector, and then drying and compacting to obtain the negative electrode of the sodium ion battery.
Further improved, the conductive agent is a nanoscale carbon material comprising one or more of carbon nanotubes, graphene or carbon nanoplatelets.
The nano-scale carbon material is used as the conductive agent, so that the conductivity and the conductivity of the material can be improved, and the material is more suitable for the fields of electronic devices, energy storage equipment and the like.
Further, the binder has a high viscosity organic colloid including one or more of polymer colloid, starch colloid, natural rubber, acrylate copolymer or polyvinyl alcohol.
The high-viscosity organic colloid as the binding agent can enhance the mechanical strength and stability of the material, and improve the durability and service life of the material.
Further refinement, the acid solution is one of hydrochloric acid, sulfuric acid or hydrofluoric acid.
The impurities and oxides on the surface of the material can be effectively removed by using strong acid solution such as hydrochloric acid, sulfuric acid or hydrofluoric acid, and the purity and electrochemical performance of the material are improved.
Further improved, the freeze drying temperature is between-50 ℃ and-80 ℃.
The freeze-drying at low temperature can avoid heat loss and chemical change of the material in the drying process, and maintain the original chemical and physical properties.
Further, deionized water, pure water, or the like is used for the method of washing to a pH value of approximately 7.
The residues and ions on the surface of the material can be removed by using a cleaning method such as deionized water or pure water, and the purity and stability of the material are ensured.
Further in improvement, the gas in the pyrolysis furnace is one of nitrogen, hydrogen, or an inert gas.
The use of nitrogen, hydrogen, inert gases or the like as the gas in the pyrolysis furnace can avoid oxidation and chemical reactions of the material at high temperatures, maintaining the stability of its chemical and physical properties.
In a specific improvement, the current collector is one of copper foil, copper mesh, aluminum foil, conductive fiber or stainless steel plate.
The copper foil, the copper mesh, the aluminum foil, the conductive fiber or the stainless steel plate and the like are used as current collectors, so that the conductivity and the stability of the electrochemical device can be improved, and the electrochemical device is more suitable for the fields of energy storage, energy conversion and the like.
Example 1
(1) Freeze-drying the saccharomyces cerevisiae liquid to obtain dry saccharomycete powder;
(2) Mixing the saccharomycete dry powder with 1% hydrochloric acid solution in the ratio of 1 to 10, stirring to homogeneity, and standing for 2 hr;
(3) Centrifugally separating the mixture to obtain a precipitate;
(4) Washing the precipitate with deionized water until the pH value is close to 7, and freeze-drying to obtain yeast cell wall powder;
(5) Placing yeast cell wall powder into a pyrolysis furnace, heating to 900 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
(6) Placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 700 ℃, keeping the temperature for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
(7) And mixing the nitrided yeast cell walls with conductive black and polyacrylate according to the proportion of 80:10:10, uniformly stirring, coating the mixture on a copper foil, and then drying and compacting the mixture to obtain the negative electrode of the sodium ion battery.
Example 2
(1) Freeze-drying the saccharomyces cerevisiae liquid to obtain dry saccharomycete powder;
(2) Mixing the saccharomycete dry powder with 1% hydrochloric acid solution in the ratio of 1 to 10, stirring to homogeneity, and standing for 2 hr;
(3) Centrifugally separating the mixture to obtain a precipitate;
(4) Washing the precipitate with deionized water until the pH value is close to 7, and freeze-drying to obtain yeast cell wall powder;
(5) Placing yeast cell wall powder into a pyrolysis furnace, heating to 800 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
(6) Placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 600 ℃, keeping the temperature for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
(7) And mixing the nitrided yeast cell walls with conductive black and polyacrylate according to the proportion of 80:10:10, uniformly stirring, coating the mixture on a copper foil, and then drying and compacting the mixture to obtain the negative electrode of the sodium ion battery.
Example 3
(1) Freeze-drying the saccharomyces cerevisiae liquid to obtain dry saccharomycete powder;
(2) Mixing the saccharomycete dry powder with 1% hydrochloric acid solution in the ratio of 1 to 10, stirring to homogeneity, and standing for 2 hr;
(3) Centrifugally separating the mixture to obtain a precipitate;
(4) Washing the precipitate with deionized water until the pH value is close to 7, and freeze-drying to obtain yeast cell wall powder;
(5) Placing yeast cell wall powder into a pyrolysis furnace, heating to 1000 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
(6) Placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 800 ℃, keeping the temperature for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
(7) And mixing the nitrided yeast cell walls with conductive black and polyacrylate according to the proportion of 80:10:10, uniformly stirring, coating the mixture on a copper foil, and then drying and compacting the mixture to obtain the negative electrode of the sodium ion battery.
By too high or too low a temperature, it is difficult to obtain a good quality carbonized yeast cell wall and nitrided yeast cell wall, and an appropriate temperature is required to solve the above-mentioned problems.
Through electrochemical tests, the sodium ion battery negative electrode prepared by the embodiment has good cycle performance and rate capability, and is expected to become a sodium ion battery negative electrode material with application prospect.
In summary, the yeast cell wall contains nitrogen elements, has positive effects on the negative electrode of the sodium ion battery, takes the yeast cell wall as a raw material, has wide sources and low cost, has good biodegradability, reduces environmental burden, has higher electrochemical activity through high-temperature carbonization and nitridation treatment, can improve the cycle performance of the sodium ion battery, is simple and easy to operate, can realize large-scale production, is hopeful to promote the research and development of the negative electrode material of the sodium ion battery, can be applied to low-cost environment-friendly sodium ion batteries, and is beneficial to solving the key problems in the energy storage field.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The method for preparing the sodium ion battery cathode material by using the yeast cell wall is characterized by comprising the following steps of:
s1, extracting yeast cell walls: lyophilizing yeast solution to obtain yeast dry powder, mixing yeast dry powder with 1% acid solution at a ratio of 1:10, stirring, standing for 2 hr, centrifuging to obtain precipitate, washing the precipitate with deionized water until pH is close to 7, and lyophilizing to obtain yeast cell wall powder;
s2, high-temperature carbonization: placing yeast cell wall powder into a pyrolysis furnace, heating to 800-1000 ℃ under the protection of nitrogen, keeping for 2 hours, and then cooling to room temperature to obtain carbonized yeast cell walls;
s3, nitriding: placing the carbonized yeast cell wall in a tube furnace in a nitrogen atmosphere, raising the temperature to 600-800 ℃, keeping for 4 hours, and then cooling to room temperature to obtain a nitrided yeast cell wall;
s4, preparing a negative electrode of the sodium ion battery: and mixing the nitrided yeast cell walls with a conductive agent and a binding agent according to a certain proportion, uniformly stirring, coating on a current collector, and then drying and compacting to obtain the negative electrode of the sodium ion battery.
2. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the conductive agent is a nanoscale carbon material and comprises one or more of carbon nanotubes, graphene or carbon nanosheets.
3. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the binding agent has high-viscosity organic colloid and comprises one or more of polymer colloid, starch colloid, natural rubber, acrylic ester copolymer or polyvinyl alcohol.
4. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the acid solution is one of hydrochloric acid, sulfuric acid or hydrofluoric acid.
5. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the freeze-drying temperature is between-50 ℃ and-80 ℃.
6. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the method for washing to a pH value close to 7 uses deionized water or pure water, etc.
7. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the gas in the pyrolysis furnace is one of nitrogen, hydrogen or inert gas.
8. The method for preparing the negative electrode material of the sodium ion battery by using the yeast cell wall according to claim 1, wherein the method comprises the following steps of: the current collector is one of copper foil, copper mesh, aluminum foil, conductive fiber or stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310616288.4A CN117117100A (en) | 2023-05-29 | 2023-05-29 | Method for preparing sodium ion battery cathode material by using yeast cell wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310616288.4A CN117117100A (en) | 2023-05-29 | 2023-05-29 | Method for preparing sodium ion battery cathode material by using yeast cell wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117117100A true CN117117100A (en) | 2023-11-24 |
Family
ID=88806173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310616288.4A Pending CN117117100A (en) | 2023-05-29 | 2023-05-29 | Method for preparing sodium ion battery cathode material by using yeast cell wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117117100A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492914A (en) * | 2001-02-27 | 2004-04-28 | 麒麟麦酒株式会社 | Film coating material |
| CN1717825A (en) * | 2003-04-08 | 2006-01-04 | 松下电器产业株式会社 | Oxygen reduction electrode and electrochemical element using same |
-
2023
- 2023-05-29 CN CN202310616288.4A patent/CN117117100A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1492914A (en) * | 2001-02-27 | 2004-04-28 | 麒麟麦酒株式会社 | Film coating material |
| CN1717825A (en) * | 2003-04-08 | 2006-01-04 | 松下电器产业株式会社 | Oxygen reduction electrode and electrochemical element using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104638240A (en) | Method for preparing lithium ion battery silicon carbon composite anode material and product prepared by method | |
| CN109786711B (en) | Preparation method of porous carbon skeleton-coated tin composite electrode material | |
| CN112864365A (en) | Nitrogen-sulfur co-doped porous carbon loaded zinc oxide negative electrode material and preparation method thereof | |
| CN107464938B (en) | Molybdenum carbide/carbon composite material with core-shell structure, preparation method thereof and application thereof in lithium air battery | |
| CN106744798A (en) | A kind of method and its application that hard carbon is prepared using carbon containing biological mass shell | |
| CN111029551A (en) | Synthesis of in situ carbon coated FeF2Method for producing granules, and FeF2Particle and battery | |
| CN112072101A (en) | Boron-doped MXene material and preparation method thereof | |
| CN111320161A (en) | Preparation method and application of asphalt-based carbon nanosheet | |
| CN110752352A (en) | Preparation method for carbon-coated silicon negative electrode material synthesized by aid of boron-nitrogen-doped polymer | |
| CN111180717A (en) | Novel silicon-carbon composite negative electrode material and preparation method thereof | |
| CN113422009B (en) | Lithium ion battery cathode material and preparation method and application thereof | |
| CN110589823A (en) | Shaddock peel porous carbon material and preparation method and application thereof | |
| CN111082162B (en) | Aqueous sodium ion battery | |
| CN114944480B (en) | Preparation method of honeycomb porous tin-carbon composite material | |
| CN113178562B (en) | Fabric-like carbon-coated silicon dioxide composite material and application thereof | |
| CN112186165B (en) | Protein fiber loaded with Ni nanoparticles and preparation method and application thereof | |
| CN112599737B (en) | Sodium ion battery transition metal sulfide carbon composite negative electrode material and preparation method and application thereof | |
| CN115385323A (en) | Heteroatom-doped biomass-derived hard carbon negative electrode material and preparation method thereof | |
| CN116177520A (en) | High-performance hard carbon negative electrode material for low-temperature sodium ion battery and preparation method thereof | |
| CN117117100A (en) | Method for preparing sodium ion battery cathode material by using yeast cell wall | |
| CN114804039A (en) | Carbon matrix composite vanadium nitride nano array and preparation method and application thereof | |
| CN109686945B (en) | Method for preparing carbon-coated tin-based composite material through low-temperature self-activation | |
| CN113201808A (en) | Porous fiber silicon-oxygen negative electrode composite material and preparation method thereof | |
| CN113130905A (en) | Ultra-small cobalt sulfide nanosheet/carbon cloth composite material and preparation method thereof | |
| CN112397701A (en) | Rice husk-based silicon oxide/carbon composite negative electrode material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |