CN113871608A - High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof - Google Patents
High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof Download PDFInfo
- Publication number
- CN113871608A CN113871608A CN202111119839.3A CN202111119839A CN113871608A CN 113871608 A CN113871608 A CN 113871608A CN 202111119839 A CN202111119839 A CN 202111119839A CN 113871608 A CN113871608 A CN 113871608A
- Authority
- CN
- China
- Prior art keywords
- entropy
- negative electrode
- electrode material
- pyrochlore
- oxide
- 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.)
- Granted
Links
Images
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
- H01M4/36—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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the field of lithium ion battery materials, and particularly discloses a high-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof. The high-entropy pyrochlore oxide is synthesized by a high-temperature solid phase method to be used as a lithium battery negative electrode material, the pyrochlore structure material with an open structure has quite high electrochemical performance, and the entropy stabilizing effect improves the cycling stability of the material. The performance gain generated by the good synergistic effect can effectively improve the performance of the lithium battery. The battery cathode material is 200mAhg in a lithium ion battery half-cell test‑1The first discharge specific capacity reaches 829.5mAhg under the current density‑1After 100 cycles, the specific capacity is 65.9mAhg‑1And excellent electrochemical performance is shown. The preparation method provided by the invention is simple in process, strong in operability and suitable for industrial production.
Description
Technical Field
The invention belongs to the field of lithium ion battery materials, and particularly relates to a high-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof.
Background
The high-entropy ceramic has the characteristics of high thermal conductivity, high melting point, good corrosion resistance, good electrochemical performance and the like, is a novel ceramic material developed on the basis of high-entropy alloy in recent years, and has potential application value in the fields of ultrahigh-temperature materials and new energy materials. In recent years, the widespread use of the concept of stable entropy of crystal structure in oxide systems has led to an increase in research activity in the field of high-entropy oxides, raising an increasing investment in high-entropy oxides.
Pyrochlore-type high-entropy oxides are compounds of the same structure as pyrochlore, which can be used as A2B2O7Is shown in (BO)6) The octahedron is connected along a three-dimensional space through a public oxygen vertex angle to form a framework. (BO)6) The octahedron shape is slightly distorted, and the A ion is located at BO6In the interstices of the skeleton. Many complex oxides have such a structure, e.g. cadmium pyroniobate Cd2Nb2O7Cadmium pyrotantalate Cd2Ta2O7Lead pyroniobate Pb2Nb2O7Cerium pyrozirconate Ce2Zr2O7And the like.
At present, the preparation of (Y) by using five mixed rare earth metal oxides and stannic oxide is not seenx1Dyx2Cex3Lax4Mx5)2Sn2O7High-entropy pyrochlore oxide and related reports that the high-entropy pyrochlore oxide is used as a battery negative electrode material.
Disclosure of Invention
The invention provides a high-entropy pyrochlore oxide and a preparation method and application thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
(1) according to high entropy pyrochlore oxide (Y)x1Dyx2Cex3Lax4Mx5)2Sn2O7(x1,x2,x3,x4,x5Is a number between 0.15 and 0.25, and x1+x2+x3+x4+x51 is ═ 1; m is Nd, Er, La or Gd) and weighing initial raw materials;
wherein, Y2O3、Dy2O3、CeO2、La2O3、Nd2O3、SnO2The purities of (A) are all more than or equal to 99%;
(2) adding the weighed initial raw materials into absolute ethyl alcohol for mixing and wet grinding, and drying the mixture to obtain mixed powder;
wherein the wet grinding is carried out in a planetary ball mill through ZrO2Grinding balls; the drying is carried out in a vacuum oven at 80 ℃ for 10 h;
(3) roasting the powder in a muffle furnace at a high temperature of 1300-1500 ℃ for 3-4 h, and slowly cooling to room temperature to obtain high-entropy oxide powder; the temperature rise rate of the muffle furnace is 4-8 ℃/min;
(4) and (3) placing the high-entropy oxide powder into a ball milling tank, and continuously milling for 2-3 h at the rotating speed of 300-500 r/min to obtain the high-entropy oxide powder with fine and uniform particle size.
The application method of the high-entropy pyrochlore oxide battery negative electrode material comprises the following steps:
according to the mass percent of each component, 70-80% of the high-entropy pyrochlore oxide battery negative electrode material, 10-15% of carbon black and 10-15% of binder (PVDF) are mixed, and the sum of the mass percent of the high-entropy pyrochlore oxide battery negative electrode material, the mass percent of the carbon black and the mass percent of the binder is 100%; then, uniformly mixing the slurry with N-methylpyrrolidone (NMP), and coating the obtained slurry on a copper foil with the thickness of 100-150 mu m; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery, wherein the voltage range is 0.01-3V.
Compared with the prior art, the invention has the beneficial effects that:
(1) the high-entropy pyrochlore oxide is synthesized by a high-temperature solid phase method and is used as a lithium battery negative electrode material for the first time, the pyrochlore structural material with an open structure has quite high charge and discharge performance, and the entropy stabilizing effect improves the cycling stability of the material.
(2) The calcining temperature adopted by the method is 1300-1500 ℃, the heat preservation time is 3-4 h, the high crystallinity of the material and the sufficient diffusion among elements are ensured, and the configuration entropy of the material is favorably improved.
(3) The formula adopted by the invention is proportioned according to strict atomic disorder and atomic size difference, and crystals with lower disorder and stable structure are formed to a certain extent.
(4) The preparation method of the high-entropy pyrochlore oxide is simple and convenient to operate and convenient to apply, and the high-entropy pyrochlore oxide has certain battery characteristics.
Drawings
FIG. 1 shows (Y) in example 10.2Dy0.2Ce0.2La0.2Nd0.2)2Sn2O7XRD of the oxide high-entropy powder material.
FIG. 2 shows (Y) in example 20.15Dy0.15Ce0.2La0.25Nd0.25)2Sn2O7XRD of the oxide high-entropy powder material.
FIG. 3 shows (Y) in example 30.15Dy0.25Ce0.15La0.25Nd0.2)2Sn2O7XRD of the oxide high-entropy powder material.
FIG. 4 shows (Y) in example 10.2Dy0.2Ce0.2La0.2Nd0.2)2Sn2O7Battery capacity and coulombic efficiency of the oxide high-entropy powder material.
FIG. 5 is a graph of the rate capability of the high entropy pyrochlore powders tested at different temperatures in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.2Dy0.2Ce0.2La0.2Nd0.2)2Sn2O7. Accurately weighing initial raw material metal oxide powder according to a molecular formula, which specifically comprises the following steps: 0.365g of Y2O30.618g of Dy2O30.562g of CeO20.526g La2O30.544g of Nd2O3And 2.446g of SnO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1300 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for proportioning, wherein the sum of the mass percentages of the high-entropy pyrochlore oxide battery negative electrode material, the carbon black and the binder is 100%; then, the resulting slurry was uniformly mixed with N-methylpyrrolidone (NMP), and the resulting slurry was coated on a copper foil in a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
FIG. 5 is a graph showing the rate capability of the high-entropy pyrochlore powder of the present invention at different temperatures, and it can be seen from FIG. 5 that the pyrochlore high-entropy oxide powder has a capacity loss rate of 62%, and has a higher capacity retention rate at a high rate compared to the conventional transition metal oxide.
Example 2
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.15Dy0.15Ce0.2La0.25Nd0.25)2Sn2O7. Accurately weighing initial metal oxide powder according to a molecular formula, specifically: 0.363g of Y2O30.605g of Dy2O30.559g of CeO20.524g of La2O30.541g of Nd2O3And 2.434g of SnO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1350 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for proportioning, wherein the sum of the mass percentages of the high-entropy pyrochlore oxide battery negative electrode material, the carbon black and the binder is 100%; then, the resulting slurry was uniformly mixed with N-methylpyrrolidone (NMP), and the resulting slurry was coated on a copper foil in a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
Example 3
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.15Dy0.25Ce0.15La0.25Nd0.2)2Sn2O7. Accurately weighing initial metal oxide powder according to a molecular formula, specifically: 0.361g of Y2O30.602g of Dy2O30.555g of CeO20.520g of La2O30.538g of Nd2O3And 2.418g of SnO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1430 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for proportioning, wherein the sum of the mass percentages of the high-entropy pyrochlore oxide battery negative electrode material, the carbon black and the binder is 100%; then evenly mixing with N-methyl pyrrolidone (NMP),coating the obtained slurry on a copper foil with a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
Example 4
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.2Dy0.2Ce0.2La0.2Nd0.2)2Sn2O7. Accurately weighing initial raw material metal oxide powder according to a molecular formula, which specifically comprises the following steps: 0.365g of Y2O30.618g of Dy2O30.562g of CeO20.526g La2O30.544g of Nd2O3And 2.446g of SnO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1400 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for proportioning, wherein the sum of the mass percentages of the high-entropy pyrochlore oxide battery negative electrode material, the carbon black and the binder is 100%; then, the resulting slurry was uniformly mixed with N-methylpyrrolidone (NMP), and the resulting slurry was coated on a copper foil in a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
Example 5
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.2Dy0.2Ce0.2La0.2Nd0.2)2Sn2O7. Accurately weighing initial raw material metal oxide powder according to a molecular formula, which specifically comprises the following steps: 0.365g of Y2O30.618g of Dy2O30.562g of CeO20.526g La2O30.544g of Nd2O3And 2.446g of SnO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1500 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for proportioning, wherein the sum of the mass percentages of the high-entropy pyrochlore oxide battery negative electrode material, the carbon black and the binder is 100%; then, the resulting slurry was uniformly mixed with N-methylpyrrolidone (NMP), and the resulting slurry was coated on a copper foil in a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
Comparative example 1
A high-entropy pyrochlore oxide material is prepared by adopting a traditional solid phase method, and the chemical composition of the high-entropy material is (Y)0.2Dy0.2Ce0.2La0.2Nd0.2)2Zr2O7. Accurately weighing initial raw material metal oxide powder according to a molecular formula, which specifically comprises the following steps: 0.401g of Y2O30.678g of Dy2O30.616g of CeO20.563g of La2O30.597g of Nd2O3And 2.194g of ZrO2Adding into a nylon tank; mixing and ball-milling the mixture for 36 hours on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling medium, and stopping milling for 10 minutes every 30 minutes; drying at 80 ℃ to obtain a raw material precursor; and roasting the raw material precursor at 1300 ℃ for 4h to obtain the high-entropy oxide powder. And (3) placing the high-entropy oxide powder into a ball milling tank, and continuously ball milling for 3h at the rotating speed of 400r/min to obtain the high-entropy oxide powder with fine and uniform particle size. Taking 0.1g of high-entropy pyrochlore oxide battery negative electrode material, 0.0125g of carbon black and 0.0125g of binder (PVDF) for preparationThe material is prepared from 100 percent of the sum of the mass percentages of a high-entropy pyrochlore oxide battery negative electrode material, carbon black and a binder; then, the resulting slurry was uniformly mixed with N-methylpyrrolidone (NMP), and the resulting slurry was coated on a copper foil in a thickness of 100 μm; and then carrying out vacuum drying to prepare a lithium ion battery negative plate, assembling the button cell by taking the metal lithium plate as a battery positive plate, and testing the electrochemical performance of the battery.
Electrochemical properties of the batteries prepared in the above examples and comparative examples are shown in table 1.
TABLE 1
| Initial specific discharge capacity/mAhg-1 | Specific discharge capacity/mAhg after 100 cycles of circulation-1 | |
| Example 1 | 829.5 | 65.9 |
| Example 2 | 799.5 | 58.9 |
| Example 3 | 770.8 | 53.6 |
| Example 4 | 820.6 | 64.8 |
| Example 5 | 810.7 | 62.3 |
| Comparative example 1 | 72.3 | 30.7 |
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The high-entropy pyrochlore oxide battery negative electrode material is characterized by comprising the following chemical composition general formula: (Y)x1Dyx2Cex3Lax4Mx5)2Sn2O7Wherein x is1,x2,x3,x4,x5Is a number between 0.15 and 0.25, and x1+x2+x3+x4+x51 is ═ 1; m ═ Nd, Er, La, or Gd.
2. A method for preparing the high-entropy pyrochlore oxide battery negative electrode material of claim 1, wherein the method comprises the steps of:
(1) according to (Y)x1Dyx2Cex3Lax4Mx5)2Sn2O7The stoichiometric ratio of (1), adding tin oxide and other metal oxides into a nylon tank respectively, mixing and ball-milling 12 to E on a planetary ball mill by taking absolute ethyl alcohol as a ball-milling mediumAfter 36 hours, drying at 80-100 ℃ to obtain a raw material precursor;
(2) putting the raw material precursor into a crucible, and putting the crucible into a muffle furnace for roasting to obtain pyrochlore type metal oxide powder;
(3) and (3) placing the high-entropy oxide powder into a ball milling tank, and continuously milling for 2-3 h at the rotating speed of 300-500 r/min to obtain the high-entropy oxide powder with fine and uniform particle size.
3. The preparation method of the high-entropy pyrochlore oxide battery negative electrode material according to claim 2, wherein the ball mill in step (1) rotates at a speed of 300 to 380 r/min.
4. The preparation method of the high-entropy pyrochlore oxide battery negative electrode material according to claim 2, wherein the crucible for high-temperature roasting in the step (2) is an alumina crucible, and the temperature rise speed of a muffle furnace is 4-8 ℃/min; the roasting temperature is 1300-1500 ℃, and the roasting time is 3-4 h.
5. A negative electrode material for lithium ion batteries, characterized in that the high-entropy pyrochlore oxide (Y) prepared by the process of claim 1 is usedx1Dyx2Cex3Lax4Mx5)2Sn2O7Uniformly mixing powder, carbon black, a binder (PVDF) and N-methyl pyrrolidone (NMP), and coating the obtained slurry on a copper foil; and then carrying out vacuum drying to prepare the lithium ion battery negative plate.
6. The negative electrode material for lithium ion batteries according to claim 5, characterized in that the high-entropy pyrochlore oxide (Y) is, in mass percentx1Dyx2Cex3Lax4Mx5)2Sn2O770-80% of powder, 10-15% of carbon black and 10-15% of binder (PVDF).
7. The negative electrode material for lithium ion batteries according to claim 5, characterized in thatMass percent, high entropy oxide (Y)x1Dyx2Cex3Lax4Mx5)2Sn2O780% of powder, 10% of acetylene black and 10% of binder.
8. The negative electrode material for lithium ion batteries according to claim 5, wherein the obtained slurry is coated on a copper foil in a thickness of 100 to 150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119839.3A CN113871608B (en) | 2021-09-24 | 2021-09-24 | High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111119839.3A CN113871608B (en) | 2021-09-24 | 2021-09-24 | High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113871608A true CN113871608A (en) | 2021-12-31 |
| CN113871608B CN113871608B (en) | 2023-01-17 |
Family
ID=78993707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111119839.3A Active CN113871608B (en) | 2021-09-24 | 2021-09-24 | High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113871608B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725365A (en) * | 2022-04-02 | 2022-07-08 | 常州大学 | B-site intermediate entropy pyrochlore structure oxide battery negative electrode material and preparation method thereof |
| CN115093224A (en) * | 2022-07-18 | 2022-09-23 | 天津大学 | Preparation method and application of pyrochlore phase high-entropy ceramic |
| CN115744970A (en) * | 2022-12-15 | 2023-03-07 | 常州大学 | Method for preparing high-entropy pyrochlore oxide battery negative electrode material by hydrothermal method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009272231A (en) * | 2008-05-09 | 2009-11-19 | Tokyo Univ Of Science | Alkaline direct alcohol fuel cell, oxide cathode catalyst, and metal oxide |
| WO2010092971A1 (en) * | 2009-02-10 | 2010-08-19 | 新日本石油株式会社 | Process for preparing pyrochlore oxide, and polymer electrolyte membrane fuel cell, fuel cell system, and process for producing electrode catalyst for fuel cell |
| CN102070335A (en) * | 2009-11-25 | 2011-05-25 | 中国科学院上海硅酸盐研究所 | Pyrochlore structural rare-earth zirconate material and preparation method and application thereof |
| JP2012182015A (en) * | 2011-03-01 | 2012-09-20 | Toyota Motor Corp | Battery active material and battery |
| CN107892570A (en) * | 2017-11-13 | 2018-04-10 | 南京工业大学 | Barium titanate doped modified lanthanum zirconate ceramic material and preparation method thereof |
| CN107994228A (en) * | 2017-12-25 | 2018-05-04 | 中国工程物理研究院电子工程研究所 | A kind of five yuan high entropy oxide nano-film of lithium ion battery and its preparation and application |
| CN111527567A (en) * | 2018-02-14 | 2020-08-11 | 三井金属矿业株式会社 | Oriented apatite oxide ion conductor and method for producing same |
| CN111533557A (en) * | 2020-03-27 | 2020-08-14 | 东华大学 | Pyrochlore type high-entropy oxide solidified body and preparation method thereof |
| CN113354414A (en) * | 2021-07-08 | 2021-09-07 | 昆明理工大学 | Entropy-stabilized RE2O3-AO2-B2O5Oxide ceramic and preparation method thereof |
| CN113353965A (en) * | 2020-03-06 | 2021-09-07 | 中国科学院上海硅酸盐研究所 | Rare earth pyrochlore phase oxide, preparation method and application thereof |
-
2021
- 2021-09-24 CN CN202111119839.3A patent/CN113871608B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009272231A (en) * | 2008-05-09 | 2009-11-19 | Tokyo Univ Of Science | Alkaline direct alcohol fuel cell, oxide cathode catalyst, and metal oxide |
| WO2010092971A1 (en) * | 2009-02-10 | 2010-08-19 | 新日本石油株式会社 | Process for preparing pyrochlore oxide, and polymer electrolyte membrane fuel cell, fuel cell system, and process for producing electrode catalyst for fuel cell |
| CN102070335A (en) * | 2009-11-25 | 2011-05-25 | 中国科学院上海硅酸盐研究所 | Pyrochlore structural rare-earth zirconate material and preparation method and application thereof |
| JP2012182015A (en) * | 2011-03-01 | 2012-09-20 | Toyota Motor Corp | Battery active material and battery |
| CN107892570A (en) * | 2017-11-13 | 2018-04-10 | 南京工业大学 | Barium titanate doped modified lanthanum zirconate ceramic material and preparation method thereof |
| CN107994228A (en) * | 2017-12-25 | 2018-05-04 | 中国工程物理研究院电子工程研究所 | A kind of five yuan high entropy oxide nano-film of lithium ion battery and its preparation and application |
| CN111527567A (en) * | 2018-02-14 | 2020-08-11 | 三井金属矿业株式会社 | Oriented apatite oxide ion conductor and method for producing same |
| CN113353965A (en) * | 2020-03-06 | 2021-09-07 | 中国科学院上海硅酸盐研究所 | Rare earth pyrochlore phase oxide, preparation method and application thereof |
| CN111533557A (en) * | 2020-03-27 | 2020-08-14 | 东华大学 | Pyrochlore type high-entropy oxide solidified body and preparation method thereof |
| CN113354414A (en) * | 2021-07-08 | 2021-09-07 | 昆明理工大学 | Entropy-stabilized RE2O3-AO2-B2O5Oxide ceramic and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JIJIAN XU等: "Pyrochlore phase Ce 2 Sn 2 O 7 via an atom-confining strategy for reversible lithium storage", 《JOURNAL OF MATERIALS CHEMISTRY A》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725365A (en) * | 2022-04-02 | 2022-07-08 | 常州大学 | B-site intermediate entropy pyrochlore structure oxide battery negative electrode material and preparation method thereof |
| CN114725365B (en) * | 2022-04-02 | 2024-03-15 | 常州大学 | B-site medium-entropy pyrochlore structure oxide battery anode material and preparation method thereof |
| CN115093224A (en) * | 2022-07-18 | 2022-09-23 | 天津大学 | Preparation method and application of pyrochlore phase high-entropy ceramic |
| CN115744970A (en) * | 2022-12-15 | 2023-03-07 | 常州大学 | Method for preparing high-entropy pyrochlore oxide battery negative electrode material by hydrothermal method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113871608B (en) | 2023-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113871608B (en) | High-entropy pyrochlore oxide battery negative electrode material and preparation and application methods thereof | |
| CN110364717B (en) | Spinel type high-entropy oxide electrode material and preparation method thereof | |
| CN111564606B (en) | Coated multi-element positive electrode material for lithium ion battery, preparation method and application thereof | |
| CN109244456B (en) | Preparation method of lithium cobaltate positive electrode material | |
| CN113353985B (en) | Lithium ion battery positive electrode material, preparation method thereof, positive electrode of lithium ion battery and lithium ion battery | |
| CN113845153A (en) | Multi-element high-entropy solid solution cathode material and preparation method and application thereof | |
| CN116581279B (en) | Positive electrode material, preparation method thereof and lithium ion battery | |
| CN112786881A (en) | Solid-state lithium battery and preparation method thereof | |
| CN113555544A (en) | Al-Ti-Mg element co-doped and LATP coated high-voltage spinel LNMO positive electrode material and preparation method thereof | |
| CN112701264A (en) | Lithium ion battery positive electrode material, preparation method thereof and application thereof in lithium ion battery | |
| CN114229923B (en) | Manganese-based oxide and electrode and battery thereof | |
| CN112382739A (en) | Preparation method of nickel cobalt lithium manganate ternary positive electrode material with surface coated and modified | |
| CN117080418B (en) | Sodium ion battery positive electrode material, preparation method thereof, positive plate, sodium ion battery and electric equipment | |
| CN115806281B (en) | Lithium iron manganese phosphate composite material, preparation method thereof and battery | |
| CN116845202A (en) | Sb and Ti co-doped high-entropy layered oxide sodium ion battery anode material and preparation method thereof | |
| CN116454267A (en) | Sodium-electricity layered oxide and preparation method thereof | |
| CN115064685A (en) | Lithium manganate composite material with long cycle life and preparation method thereof | |
| CN109616642B (en) | Composite positive electrode material, preparation method thereof and lithium ion battery | |
| CN114005955A (en) | Positive pole piece and preparation method and application thereof | |
| CN115072797A (en) | Preparation method and application of lithium ion battery positive electrode material | |
| CN112928272A (en) | High-nickel ternary cathode material doped with aliovalent ions and preparation method and application thereof | |
| CN111653765A (en) | Preparation method of niobium-doped nickel-cobalt lithium aluminate anode material | |
| CN115050937B (en) | Lithium ion battery anode material and preparation method thereof | |
| CN115799619B (en) | Oxide solid electrolyte and preparation method and application thereof | |
| CN115763751A (en) | Ternary positive active 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |