CN107706375A - The method for preparing manganese base sodium ion composite oxide positive pole material - Google Patents
The method for preparing manganese base sodium ion composite oxide positive pole material Download PDFInfo
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- CN107706375A CN107706375A CN201710872649.6A CN201710872649A CN107706375A CN 107706375 A CN107706375 A CN 107706375A CN 201710872649 A CN201710872649 A CN 201710872649A CN 107706375 A CN107706375 A CN 107706375A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/364—Composites as mixtures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of method for preparing manganese base sodium ion composite oxide positive pole material, it belongs to energy new material technology field.The composition formula of the positive electrode is Na1‑xQxMn1‑yMyO2, wherein 0≤x≤0.4,0≤y ＜ 0.4, Q, M are modifying element.Its specific method：By sodium source, manganese source, modifying element Q and M compound, according to Na：Q：Mn：M mol ratios are 0.1 ~ 1.0：0~0.9：0.5~1.0：After 0 ~ 0.5 weighs, it is incorporated with the equipment of crushing medium and dispersant after carrying out broken and uniform mixing, 3~30h crystallization synthesis is carried out in the range of 500 ~ 900 DEG C of temperature, constant temperature quenches 1 ~ 5h after cooling to 200 ~ 500 DEG C of scopes afterwards, thereafter room temperature is naturally cooled to, the finally mixing and breaking up in mix grinding equipment, obtain manganese base sodium ion composite oxide positive pole material, its specific discharge capacity reaches 240mAh/g, also there is excellent cycle performance, present invention process is simple, the cost of raw material and manufacturing expense are low, process route is simple, cycle is short, energy consumption is low, available for large-scale production.
Description
Technical field
Manganese base sodium ion is prepared the present invention relates to a kind of sodium-ion battery method for preparing anode material, especially one kind to answer
The method for closing oxide anode material.
Background technology
As car ownership is constantly brought forth new ideas height, urban traffic pressure is not exclusively increased, and vehicle exhaust is even more
Air quality is set to go from bad to worse, haze everyday shrouds in the air, and human habitat is faced with new challenges.In this new market
Demand under the new situation, entrust with an important task by new-energy automobile, and country also constantly puts into effect the new policies of new-energy automobile, supports new energy energetically
The development of automobile.Along with the geometric growth of new-energy automobile and lithium-ion-power cell, its material of main part lithium, nickel, cobalt
Price sharp rises, and the cost of electric automobile is encountered by very big pressure, and the resource of these materials is very limited, causes
Lithium battery yield can not meet the new-energy automobile market demand of rapid growth.The new technology of new energy product also will be with market
Demand arise at the historic moment.
The content of the invention
It is an object of the invention to provide a kind of method for preparing manganese base sodium ion composite oxide positive pole material, with manganese base sodium
Ion composite oxides keep good chemical property as cell positive material, reduction product cost, also meet nothing
Requirement that is malicious, pollution-free, having a safety feature.
The purpose of the present invention is realized as follows：The composition formula of the positive electrode is Na1-xQxMn1-yMyO2, its
In 0≤x≤0.4,0≤y ＜ 0.4, Q, M are modifying element, and preparation method is：By the change of sodium source, manganese source, modifying element Q and M
Compound, according to Na：Q：Mn：M mol ratios are 0.1 ~ 1.0：0~0.9：0.5~1.0：After 0 ~ 0.5 weighs, be incorporated with crushing medium and
After broken and uniform mixing is carried out in the equipment of dispersant, the crystallization that 3~30h is carried out in the range of 500 ~ 900 DEG C of temperature is closed
Into constant temperature quenches 1 ~ 5h after cooling to 200 ~ 500 DEG C of scopes afterwards, room temperature is naturally cooled to thereafter, finally in mix grinding equipment
Mixing and breaking up, obtain manganese base sodium ion composite oxide positive pole material.The crystallization synthetic method can accelerate the reaction speed of material
Degree, makes multiple element be migrated in ion and atom level level, and material reaction is abundant, so not only can obtain crystallinity very
Good positive electrode, and the electric conductivity of material is improved, make cycle performance, material under its high rate performance, low temperature environment
The chemical property such as service life be greatly improved.
Sodium source be the carbonate containing sodium, hydroxide, formates, citrate, tert butoxide, benzoate, acetate,
At least one of acetate, oxalates.
Modifying element Q compounds are lithium（Li）, magnesium（Mg）, potassium（K）, calcium（Ca）, strontium（Sr）Carbonate, hydroxide,
At least one of formates, acetate, acetate, oxalates, citrate, tert butoxide, benzoate.
Manganese source is the oxide containing manganese, carbonate, hydroxide, oxalates, acetate, the carbonyl of methyl cyclopentadiene three
At least one of salt, ten carbonyl disalts, titanate, carbide, nitrate.
Modifying element M compounds are iron（Fe）, copper（Cu）, tin（Sn）, indium（In）Antimony（Sb）, bismuth（Bi）, aluminium（Al）, gallium
（Ga）, germanium（Ge）, tantalum（Ta）, vanadium（V）, chromium（Cr）, molybdenum（Mo）, caesium（Cs）, rubidium（Rb）, zirconium（Zr）, zinc（Zn）, yttrium（y）, niobium
（Nb）, titanium（Ti）, nickel cobalt manganese（Ni+Co+Mn）, nickel cobalt（Ni+Co）, nickel manganese（Ni+Mn）, cobalt manganese（Co+Mn）, lithium（Li）, lithium nickel
Cobalt manganese（Li+Ni+Co+Mn）, lithium nickel cobalt（Li+Ni+Co）, lithium nickel manganese（Li+Ni+Mn）, lithium cobalt manganese（Li+Co+Mn）, lithium nickel（Li+
Ni）, lithium cobalt（Li+Co）, lithium manganese（Li+Mn）Deng the oxide, hydroxide or carbonate of element, contain the compound of above element
Oxide, complex hydroxide or compound carbonate, the mixing of oxide, carbonate and hydroxide containing above element
Thing, the compound organic matter ligand of organic matter ligand or more than one elements containing one of the above element.
Dispersant is deionized water, absolute ethyl alcohol, ethylene glycol, glycerine, polyvinyl alcohol, APES
（APEO）, high-carbon fatty alcohol polyoxyethylene ether（AEO）, polyoxyethylene carboxylate（AE）, polyoxyethylene amine, polyoxyethylene acyl
Amine, the ethylene oxide adduct of polypropylene glycol, sorbitan ester, sucrose ester, alkylolamides, polyethylene glycol（PEG）, it is stearic
Acid, fatty glyceride, fatty acid sorbitan, polysorbate, imidazoline, morpholine guanidine, triazine derivative, formic acid, acetic acid,
Glycolic, oxalic acid, glycine, propionic acid, acrylic acid, lactic acid, malonic acid, 2- propiolic acids, glyceric acid, pyruvic acid, n-butyric acie, isobutyl
Acid, 3-butenoic acid, methacrylate, tartaric acid, positive valeric acid, isovaleric acid, 2- penetenoic acids, 3- penetenoic acids, 4- penetenoic acids, glutaric acid,
Glutamic acid, n-caproic acid, isocaproic acid,（E）- 2- hexenoic acids,（E）At least one of -3- hexenoic acids, adipic acid, citric acid.
By the process that sodium source, manganese source, modifying element Q and M compound are broken and are well mixed it is equipped with together into zirconium ball
Abundant mix grinding 5 hours in the tumbling ball mill of medium and deionization dispersant.
The manganese base sodium ion composite oxide positive pole material performance indications such as following table prepared using the method for the present invention：
The method technique of the present invention is simple, the cost of raw material and processing charges are low, and process route is simple, the cycle is short, energy consumption is low, can
Large-scale production.Also there is good chemical property as manganese base sodium ion composite positive pole, charge and discharge platform is very flat
Surely, Stability Analysis of Structures in charge and discharge process, the material have it is nontoxic, pollution-free, have a safety feature, and cost is very cheap, tool
There is very big development space.Manganese base sodium ion composite positive pole performance characteristics：Chargeable range is 2.0 ~ 4.8V, and electric discharge presses against
More than 3V, specific discharge capacity are excellent in more than 240mAh/g, cycle performance.
Embodiment
Embodiment 1
NaHCO3, Li2CO3, MnO2, CoCO3 are weighed, Na, Li, Mn, Co mol ratio are 0.8：0.2：0.95：0.05, fill together
After having abundant mix grinding 5 hours in the tumbling ball mill of zirconium ball medium and deionization dispersant, raw material well mixed, load sintering
Saggar, temperature is raised to 500 DEG C of constant temperature 30h crystallization synthesis, constant temperature quenches 5h after cooling to 500 DEG C afterwards, thereafter natural cooling
To room temperature, finally the mixing and breaking up in mix grinding equipment, obtains manganese base sodium ion composite oxide positive pole material.
Embodiment 2
Na2CO3, LiOH, Mn3O4, CuO are weighed, Na, Li, Mn, Cu mol ratio are 0.85：0.15：0.90：0.10, it is equipped with together
Enter abundant mix grinding 5 hours in the tumbling ball mill of zirconium ball medium and deionization dispersant, after raw material is well mixed, load sintering casket
Alms bowl, temperature is raised to 900 DEG C of constant temperature 3h crystallization synthesis, constant temperature quenches 1h after cooling to 200 DEG C afterwards, naturally cools to room thereafter
Temperature, finally the mixing and breaking up in mix grinding equipment, obtains manganese base sodium ion composite oxide positive pole material.
Embodiment 3
NaHCO3, KOH, MnO2, Nb2O5 are weighed, Na, K, Mn, Nb mol ratio are 0.95：0.05：0.97：0.03, load together
Abundant mix grinding 5 hours in the tumbling ball mill of agate ball medium and polyethylene glycol dispersant, after raw material is well mixed, loads and burn
Saggar is tied, temperature is raised to 700 DEG C of constant temperature 15h crystallization synthesis, constant temperature quenches 3h after cooling to 350 DEG C afterwards, naturally cold thereafter
But to room temperature, finally the mixing and breaking up in mix grinding equipment, obtains manganese base sodium ion composite oxide positive pole material.
Embodiment 4
Na2CO3, MgCO3, MnO2, Co0.8Ni0.2 (OH) 2 is weighed, the mol ratio of Na, Mg, Mn, Co0.8Ni0.2 (OH) 2 is
0.95：0.05：0.9：0.1, it is fitted into together in the tumbling ball mill of aluminium Ceramic Balls medium and acrylic acid aqueous solution dispersant fully
Mix grinding 5 hours, after raw material is well mixed, load sintering saggar, after raw material is well mixed, loads sintering saggar, temperature is raised to
800 DEG C of constant temperature 10h crystallization synthesis, constant temperature quenches 4h after cooling to 400 DEG C afterwards, naturally cools to room temperature thereafter, finally mixed
Mixing and breaking up in equipment is ground, obtains manganese base sodium ion composite oxide positive pole material.
Embodiment 5
Na2CO3, SrCO3, MnCO3, Co (OH) 2 is weighed, Na, Sr, Mn, Co mol ratio are 0.95：0.05：0.95：0.05, one
Rise and be fitted into agate ball medium and mix equal with abundant mix grinding 5 hours in the tumbling ball mill of acrylic acid aqueous solution dispersant, raw material
After even, load sintering saggar, after raw material is well mixed, load sintering saggar, temperature is raised to 600 DEG C of constant temperature 20h crystallization synthesis,
Constant temperature quenches 2h after cooling to 300 DEG C afterwards, naturally cools to room temperature thereafter, finally the mixing and breaking up in mix grinding equipment, is obtained
To manganese base sodium ion composite oxide positive pole material.
Embodiment 6
NaHCO3, LiOH, Mn3O4, Ni (OH) 2 is weighed, Na, Li, Mn, Ni mol ratio are 0.80：0.20：0.3：0.96：0.04,
It is fitted into the tumbling ball mill of agate ball medium and Aqueous Solutions of Polyethylene Glycol dispersant abundant mix grinding together 5 hours, raw material mixing
After uniformly, load sintering saggar, after raw material is well mixed, load sintering saggar, temperature is raised into 690 DEG C of constant temperature 17h crystallizations closes
Into, constant temperature quenches 1h after cooling to 460 DEG C afterwards, naturally cools to room temperature thereafter, finally the mixing and breaking up in mix grinding equipment,
Obtain manganese base sodium ion composite oxide positive pole material.
The performance indications such as following table of manganese base sodium ion composite oxide positive pole material prepared by embodiment 1~6：
Claims (7)
- A kind of 1. method for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：The composition of the positive electrode Formula is Na1-xQxMn1-yMyO2, wherein 0≤x≤0.4,0≤y ＜ 0.4, Q, M are modifying element, preparation method：By sodium Source, manganese source, modifying element Q and M compound, according to Na：Q：Mn：M mol ratios are 0.1 ~ 1.0：0~0.9：0.5~1.0：0~0.5 After weighing, it is incorporated with the equipment of crushing medium and dispersant after carrying out broken and uniform mixing, in the model of 500 ~ 900 DEG C of temperature 3~30h of interior progress crystallization synthesis is enclosed, constant temperature quenches 1 ~ 5h after cooling to 200 ~ 500 DEG C of scopes afterwards, naturally cools to thereafter Room temperature, finally the mixing and breaking up in mix grinding equipment, obtains manganese base sodium ion composite oxide positive pole material.
- 2. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Sodium Source is the carbonate containing sodium, hydroxide, formates, citrate, tert butoxide, benzoate, acetate, acetate, grass At least one of hydrochlorate.
- 3. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Change Property element Q compounds be containing lithium（Li）, magnesium（Mg）, potassium（K）, calcium（Ca）, strontium（Sr）Carbonate, hydroxide, formates, second At least one of hydrochlorate, acetate, oxalates, citrate, tert butoxide, benzoate.
- 4. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Manganese Source is the oxide containing manganese, carbonate, hydroxide, oxalates, acetate, the carbonyl salt of methyl cyclopentadiene three, ten carbonyls two At least one of salt, titanate, carbide, nitrate.
- 5. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Change Property element M compound is iron（Fe）, copper（Cu）, tin（Sn）, indium（In）Antimony（Sb）, bismuth（Bi）, aluminium（Al）, gallium（Ga）, germanium（Ge）、 Tantalum（Ta）, vanadium（V）, chromium（Cr）, molybdenum（Mo）, caesium（Cs）, rubidium（Rb）, zirconium（Zr）, zinc（Zn）, yttrium（y）, niobium（Nb）, titanium（Ti）, nickel Cobalt manganese（Ni+Co+Mn）, nickel cobalt（Ni+Co）, nickel manganese（Ni+Mn）, cobalt manganese（Co+Mn）, lithium（Li）, lithium nickel cobalt manganese（Li+Ni+Co+ Mn）, lithium nickel cobalt（Li+Ni+Co）, lithium nickel manganese（Li+Ni+Mn）, lithium cobalt manganese（Li+Co+Mn）, lithium nickel（Li+Ni）, lithium cobalt（Li+ Co）, lithium manganese（Li+Mn）It is the composite oxides containing above element, compound Deng the oxide, hydroxide or carbonate of element Hydroxide or compound carbonate, the mixture of oxide, carbonate and hydroxide containing above element, one containing more than The organic matter ligand of kind element or the compound organic matter ligand of more than one elements.
- 6. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Point Powder is deionized water, absolute ethyl alcohol, ethylene glycol, glycerine, polyvinyl alcohol, APES（APEO）, high-carbon fat Fat alcohol APEO（AEO）, polyoxyethylene carboxylate（AE）, polyoxyethylene amine, polyoxyethylate amide, the ring of polypropylene glycol Oxidative ethane addition product, sorbitan ester, sucrose ester, alkylolamides, polyethylene glycol（PEG）, stearic acid, fatty acid glycerine Ester, fatty acid sorbitan, polysorbate, imidazoline, morpholine guanidine, triazine derivative, formic acid, acetic acid, glycolic, oxalic acid, Glycine, propionic acid, acrylic acid, lactic acid, malonic acid, 2- propiolic acids, glyceric acid, pyruvic acid, n-butyric acie, isobutyric acid, 3-butenoic acid, Methacrylate, tartaric acid, positive valeric acid, isovaleric acid, 2- penetenoic acids, 3- penetenoic acids, 4- penetenoic acids, glutaric acid, glutamic acid, just oneself Acid, isocaproic acid,（E）- 2- hexenoic acids,（E）At least one of -3- hexenoic acids, adipic acid, citric acid.
- 7. the method according to claim 1 for preparing manganese base sodium ion composite oxide positive pole material, it is characterised in that：Will Sodium source, manganese source, modifying element Q and M compound be broken and well mixed process be equipped with together into zirconium ball medium and go from Abundant mix grinding 5 hours in the tumbling ball mill of sub- dispersant.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112375A (en) * | 2019-03-22 | 2019-08-09 | 南京大学 | The double transition metal manganese base layered cathode materials of sodium-ion battery |
| CN111554907A (en) * | 2020-05-15 | 2020-08-18 | 深圳澳睿新能源科技有限公司 | Application of fatty acid in preparation of lithium ion battery and method for preparing electrode material |
| US11196046B2 (en) | 2019-01-11 | 2021-12-07 | Contemporary Amperex Technology Co., Limited | Positive active material, preparation process thereof, sodium ion battery and apparatus containing the same |
| CN114604896A (en) * | 2022-03-25 | 2022-06-10 | 中南大学 | MXene composite modified binary manganese-based sodium electro-precursor and preparation method thereof |
| CN114790013A (en) * | 2021-01-26 | 2022-07-26 | 中国科学院物理研究所 | Sodium ion battery positive electrode active material capable of self-supplementing sodium, and preparation method and application thereof |
| CN114843471A (en) * | 2022-05-16 | 2022-08-02 | 电子科技大学长三角研究院(湖州) | Layered positive electrode material and preparation method and application thereof |
| CN115028214A (en) * | 2022-06-30 | 2022-09-09 | 赵县强能电源有限公司 | Method for preparing manganese-based sodium ion composite oxide positive electrode material |
| CN115367804A (en) * | 2022-09-23 | 2022-11-22 | 东莞理工学院 | Preparation method of manganese-based sodium-ion battery positive electrode material with stable air |
| CN115602826A (en) * | 2021-07-09 | 2023-01-13 | 南开大学（Cn） | Air and water stable sodium ion battery positive electrode material and preparation method and application thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11196046B2 (en) | 2019-01-11 | 2021-12-07 | Contemporary Amperex Technology Co., Limited | Positive active material, preparation process thereof, sodium ion battery and apparatus containing the same |
| CN110112375A (en) * | 2019-03-22 | 2019-08-09 | 南京大学 | The double transition metal manganese base layered cathode materials of sodium-ion battery |
| CN110112375B (en) * | 2019-03-22 | 2021-07-30 | 南京大学 | Double-transition metal manganese-based layered positive electrode material of sodium ion battery |
| CN111554907B (en) * | 2020-05-15 | 2022-08-05 | 深圳澳睿新能源科技有限公司 | Application of fatty acid in preparation of lithium ion battery and method for preparing electrode material |
| WO2021227127A1 (en) * | 2020-05-15 | 2021-11-18 | 深圳澳睿新能源科技有限公司 | Use of fatty acid in preparation of lithium ion battery and method for manufacturing electrode material |
| CN111554907A (en) * | 2020-05-15 | 2020-08-18 | 深圳澳睿新能源科技有限公司 | Application of fatty acid in preparation of lithium ion battery and method for preparing electrode material |
| CN114790013A (en) * | 2021-01-26 | 2022-07-26 | 中国科学院物理研究所 | Sodium ion battery positive electrode active material capable of self-supplementing sodium, and preparation method and application thereof |
| CN114790013B (en) * | 2021-01-26 | 2023-10-13 | 中国科学院物理研究所 | Sodium ion battery positive electrode active material capable of self-supplementing sodium, preparation method and application thereof |
| CN115602826A (en) * | 2021-07-09 | 2023-01-13 | 南开大学（Cn） | Air and water stable sodium ion battery positive electrode material and preparation method and application thereof |
| CN114604896A (en) * | 2022-03-25 | 2022-06-10 | 中南大学 | MXene composite modified binary manganese-based sodium electro-precursor and preparation method thereof |
| CN114604896B (en) * | 2022-03-25 | 2023-03-10 | 中南大学 | MXene composite modified binary manganese-based sodium electro-precursor and preparation method thereof |
| CN114843471A (en) * | 2022-05-16 | 2022-08-02 | 电子科技大学长三角研究院(湖州) | Layered positive electrode material and preparation method and application thereof |
| CN114843471B (en) * | 2022-05-16 | 2023-09-22 | 电子科技大学长三角研究院(湖州) | Layered positive electrode material, and preparation method and application thereof |
| CN115028214A (en) * | 2022-06-30 | 2022-09-09 | 赵县强能电源有限公司 | Method for preparing manganese-based sodium ion composite oxide positive electrode material |
| CN115367804A (en) * | 2022-09-23 | 2022-11-22 | 东莞理工学院 | Preparation method of manganese-based sodium-ion battery positive electrode material with stable air |
| CN115367804B (en) * | 2022-09-23 | 2024-04-16 | 东莞理工学院 | Preparation method of air-stable manganese-based sodium ion battery positive electrode material |
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Application publication date: 20180216 |