WO2023155540A1 - Matériau d'électrode négative de batterie sodium-ion désallié, et procédé de préparation associé - Google Patents

Matériau d'électrode négative de batterie sodium-ion désallié, et procédé de préparation associé Download PDF

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WO2023155540A1
WO2023155540A1 PCT/CN2022/135886 CN2022135886W WO2023155540A1 WO 2023155540 A1 WO2023155540 A1 WO 2023155540A1 CN 2022135886 W CN2022135886 W CN 2022135886W WO 2023155540 A1 WO2023155540 A1 WO 2023155540A1
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carbon
particles
containing particles
preparation
solution
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PCT/CN2022/135886
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Chinese (zh)
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余海军
谢英豪
李爱霞
张学梅
李长东
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广东邦普循环科技有限公司
湖南邦普循环科技有限公司
湖南邦普汽车循环有限公司
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Priority to GB2314015.5A priority Critical patent/GB2619644A/en
Priority to DE112022002474.7T priority patent/DE112022002474T5/de
Publication of WO2023155540A1 publication Critical patent/WO2023155540A1/fr

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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
    • H01M4/366—Composites as layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/18—Non-metallic particles coated with metal
    • 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
    • H01M4/36—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
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • 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
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/387—Tin or alloys based on tin
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • 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

Definitions

  • the application belongs to the technical field of sodium ion batteries, and in particular relates to a dealloyed sodium ion battery negative electrode material and a preparation method thereof.
  • Lithium-ion batteries play an important role in energy storage modules for electric vehicles and handheld electronic devices.
  • the application of lithium-ion batteries in the field of renewable energy power generation and energy storage in the future is limited due to limited lithium resources and high energy storage costs.
  • Sodium-ion batteries have an electrochemical reaction principle similar to lithium-ion batteries, and sodium resources are abundant, widely distributed, and low in cost.
  • sodium-ion batteries are expected to be applied in large-scale energy storage systems, and thus have attracted extensive attention from scientific research and industry.
  • the large radius and heavy weight of sodium ions the kinetics of sodium ions in electrode materials is slow, which hinders the practical application of sodium ion batteries. difficulty.
  • Graphite is the most mature anode material for lithium-ion batteries. It has been confirmed that when graphite is used as the negative electrode of a sodium ion battery, sodium ions can only intercalate into graphite to generate an 8-stage NaC 64 compound in a carbonate electrolyte. In the past decade, anode materials for sodium-ion batteries have developed rapidly, and researchers have developed a series of hard carbons, heteroatom-doped carbon materials, intercalation compounds, conversion and alloyed anodes.
  • high-capacity negative electrode materials are mainly concentrated in metal oxide/sulfide materials, alloy materials, etc.
  • anode materials with an alloy mechanism have attracted the attention of researchers due to their higher specific capacity and better safety, such as tin-antimony alloys, tin-phosphorus compounds, and SnGeSb ternary alloys.
  • the theoretical specific capacity of SnSb alloy is as high as 853mAh/g, which is a very potential negative electrode material for sodium-ion batteries, but its volume expansion during charging and discharging causes material pulverization, which leads to rapid degradation of battery performance, such as tin-based materials in alloy- The volume expansion rate reached 358% during the dealloying process.
  • the present application aims to solve at least one of the technical problems in the above-mentioned prior art. For this reason, the present application proposes a negative electrode material for a dealloyed sodium ion battery and a preparation method thereof.
  • a negative electrode material for dealloyed sodium-ion batteries which consists of solid carbon particles and nano-scale metal mesh coated on the surface of the solid carbon particles, or consists of nano-scale metal mesh and its interior
  • the supported carbon skeleton is composed of a hollow or three-dimensional porous shape, and the composition of the nanoscale metal mesh is at least one of Sn, Pb, Bi, Ge or Sb.
  • the particle size of the dealloyed sodium ion battery negative electrode material is 1-5 ⁇ m.
  • the present application also provides a preparation method of the dealloyed sodium ion battery negative electrode material, comprising the following steps:
  • S2 Add the carbon-containing particles with a metal palladium layer on the surface to the electroplating solution, and perform plating under stirring to obtain carbon-containing particles with an alloy coating;
  • the electroplating solution contains Ni and Sn, Pb, Bi, At least one of Ge or Sb; plating under stirring can prevent particle agglomeration.
  • step S3 Introduce carbon monoxide to the carbon-containing particles with an alloy coating, and then soak in the first organic solvent to obtain de-alloyed particles; when the carbon-containing particles are organic polymers, proceed to step S4; When the carbon-containing particles are hard carbon, the dealloyed particles obtained in this step are finished products;
  • the carbon-containing particles are subjected to the following pretreatment: adding the carbon-containing particles to a sodium hydroxide solution for heating, washing with water, and then adding to a nitric acid solution for heating, Wash again with water.
  • the purpose of adding sodium hydroxide solution for treatment is to remove surface dirt, preferably, the concentration of the sodium hydroxide solution is 5-30%, heated to boiling, and boiled for 15-30min; the purpose of treatment with nitric acid solution is to corrode carbon-containing Particle surface, enhance its ability to combine with the coating, preferably, the concentration of nitric acid solution is 15-25%, heated to boiling, boiled for 15-25min.
  • step S1 the solid-to-liquid ratios of the sodium hydroxide solution and the nitric acid solution treatment process are both 20-30 g/L.
  • step S1 the particle size of the carbon-containing particles is ⁇ 5 ⁇ m.
  • the concentration of hydrochloric acid in the mixed solution of hydrochloric acid and stannous chloride is 1.5-2.0 mol/L, and the concentration of stannous chloride is 15-20 g/L.
  • the purpose of treating with the mixed solution of hydrochloric acid and stannous chloride is to make the surface of the carbonaceous particles absorb a layer of easily oxidizable stannous ions.
  • the boiling time of the mixed solution of hydrochloric acid and stannous chloride is 10-20min .
  • the concentration of hydrochloric acid in the mixed solution of hydrochloric acid and palladium chloride is 1.5-2.0 mol/L, and the concentration of palladium chloride is 0.5-1 g/L.
  • the purpose of treating with a mixed solution of hydrochloric acid and palladium chloride is to reduce palladium ions to active metal palladium and attach to the surface of carbon-containing particles.
  • the boiling time of the mixed solution of hydrochloric acid and palladium chloride is 10-20min.
  • the concentration of the sodium hypophosphite solution is 30-50g/L, and the soaking time of the sodium hypophosphite solution is 10-20min.
  • the purpose of soaking with sodium hypophosphite solution is to remove tin and palladium ions on the surface of carbon-containing particles.
  • step S1 the solid-to-liquid ratio of the mixed solution of hydrochloric acid and stannous chloride, the mixed solution of hydrochloric acid and palladium chloride, and the sodium hypophosphite solution treatment process are all 40-60g/ L.
  • the organic polymer is at least one of polystyrene, polyacetylene, polyaniline, polypyrrole or polythiophene.
  • step S2 after the plating is completed, solid-liquid separation is performed, and the obtained solid is first washed with deionized water, and then washed with absolute ethanol.
  • step S2 the plating time is 5-10 minutes.
  • the first organic solvent is at least one of benzene, acetone, ether, tetrachlorinated naphthalene, ethanol, chloroform or carbon tetrachloride.
  • step S3 the pressure of the carbon monoxide is ⁇ 0.1 MPa, the treatment temperature is 38-93° C., and the treatment time is 0.5-1.0 h.
  • the second organic solvent is a good solvent, preferably at least one of tetrahydrofuran, dichloromethane or chloroform.
  • the carbon source solution is at least one of solutions of glucose, starch, sucrose, fructose, lactose or galactose; the concentration of the carbon source solution is 0.05-2g /mL.
  • step S4 the solid-to-liquid ratio of the hydrothermal reaction is 1g:(1-10)mL; the temperature of the hydrothermal reaction is 150-200°C, and the reaction time is 2 -5h.
  • step S4 the carbonization temperature is 200-550° C., and the carbonization time is 1-12 hours.
  • carbon-containing particles are firstly subjected to pre-plating treatment to obtain a catalytically active metal palladium layer on the surface, which is easy to attach to metal particles during subsequent electroplating, and then an electroplating solution containing nickel is used for alloy electroplating to make the target metal (Sn , Pb, Bi, Ge or Sb) and nickel are co-deposited on the surface of carbon-containing particles, and after dealloying treatment, nickel and carbon monoxide react to form nickel carbonyl, which is dissolved in an organic solvent to remove nickel, thereby forming on the surface of carbon-containing particles
  • Nano-scale metal mesh when used as a negative electrode material, its internal nano-porous structure can not only buffer the volume change brought by the charging and discharging process, but also increase the contact area between the electrode and the electrolyte, with high capacity, excellent Cycle and rate performance, while the metal produced by electroplating has high density and mechanical strength, and can well resist the problems caused by its volume expansion when it is used as a negative electrode material for
  • Carbon-containing particles can be carbonized when organic polymers are selected, so that a supportive three-dimensional porous carbon skeleton structure is formed inside the particles.
  • Carbon-containing particles can also choose wire Type organic polymer, after the metal mesh is prepared, the linear organic polymer inside the particle is removed with an organic solvent, and then carbonized after soaking in a carbon source solution, so that a supporting hollow carbon skeleton structure is formed inside the metal mesh.
  • the combination of metal mesh and carbon materials can improve the strength and conductivity of particles, and the three-dimensional porous or hollow carbon skeleton structure can further increase the specific surface area of the material, which is more conducive to the deintercalation of sodium ions. When used as anode materials for sodium-ion batteries, it can Further improve cycle performance and specific capacity.
  • FIG. 1 is a SEM image of the dealloyed sodium ion battery negative electrode material prepared in Example 1 of the present application.
  • a negative electrode material for a dealloyed sodium ion battery is prepared. Its structure is composed of solid carbon particles and nano-scale metal mesh coated on the surface of the solid carbon particles, with a particle size of 1-5 ⁇ m.
  • the preparation process is as follows:
  • Pre-plating treatment Select hard carbon with a particle size of ⁇ 5 ⁇ m, add it to 20% sodium hydroxide solution, boil for 20 minutes (to remove surface dirt), wash with deionized water until neutral, and then add 20% nitric acid In the solution, boil for 20 minutes (erode the surface of the particles and enhance their binding ability with the coating), wash with deionized water until neutral, and the solid-to-liquid ratio during the treatment process is 25g/L;
  • step (2) Add the hard carbon treated in step (1) into HCl of 1.5mol/L and stannous chloride solution of 20g/L and boil for 15min (adsorb a layer of easily oxidizable stannous ions), wash with deionized water to neutrality, then added to 1.5mol/L HCl and 0.5g/L palladium chloride solution and boiled for 20min (palladium ions are reduced to active metal palladium attached to the particle surface), washed with deionized water until neutral, Then add to 50g/L sodium hypophosphite solution and soak for 20min (to remove tin and palladium ions on the particle surface), dry after solid-liquid separation, and the solid-liquid ratio of the treatment process is 50g/L;
  • the composition of the alloy electroplating solution is 50g/L of SnCl 2 , 280g/L of NiCl 2 , 50g/L of (NH 4 )HF 2 , pH is 2-2.5, and current density is 1 -2A/dm 2 , the temperature is 60°C;
  • a de-alloyed sodium-ion battery negative electrode material is prepared. Its structure is composed of a nanoscale metal mesh and a three-dimensional porous carbon skeleton supported inside, with a particle size of 1-5 ⁇ m.
  • the preparation process is as follows:
  • Pre-plating treatment select polystyrene with a particle size of ⁇ 5 ⁇ m, add it to 15% sodium hydroxide solution, boil for 15 minutes (to remove surface dirt), wash with deionized water until neutral, and then add 15% sodium hydroxide solution. Boil in nitric acid solution for 15 minutes (to erode the particle surface and enhance its binding ability with the coating), wash with deionized water until neutral, and the solid-to-liquid ratio during the treatment process is 20g/L;
  • step (2) Add the polystyrene treated in step (1) to 2.0mol/L HCl and 15g/L stannous chloride solution and boil for 20min (adsorbing a layer of easily oxidizable stannous ions), deionized water Wash until neutral, then add to 1.5mol/L HCl and 1g/L palladium chloride solution and boil for 20min (palladium ions are reduced to active metal palladium attached to the particle surface), washed with deionized water until neutral, Then add to 30g/L sodium hypophosphite solution and soak for 10min (to remove tin and palladium ions on the particle surface), dry after solid-liquid separation, and the solid-liquid ratio of the treatment process is 40g/L;
  • the composition of alloy electroplating solution is 45g/L of SnCl 2 , 285g/L of NiCl 2 , 55g/L of (NH 4 )HF 2 , pH is 2-2.5, current density 1 -2A/dm 2 , the temperature is 70°C;
  • Carbonization treatment carbonize the dealloyed sodium particles obtained in step (5), and react in an inert atmosphere at 215° C. for 12 hours to obtain a dealloyed sodium ion battery negative electrode material.
  • a de-alloyed sodium-ion battery negative electrode material is prepared. Its structure is composed of a nanoscale metal mesh and a hollow carbon skeleton supported inside it, with a particle size of 1-5 ⁇ m.
  • the preparation process is as follows:
  • Pre-plating treatment select polystyrene with particle size ⁇ 5 ⁇ m, add to 30% sodium hydroxide solution, boil for 30 minutes (to remove surface dirt), wash with deionized water until neutral, and then add to 25% sodium hydroxide solution In nitric acid solution, boil for 25min (to erode the surface of the particles and enhance their binding ability with the coating), wash with deionized water until neutral, and the solid-liquid ratio during the treatment process is 30g/L;
  • step (2) Add the polystyrene treated in step (1) to 2.0mol/L HCl and 20g/L stannous chloride solution and boil for 20min (adsorbing a layer of easily oxidizable stannous ions), deionized water Wash until neutral, then add to 2.0mol/L HCl and 1g/L palladium chloride solution and boil for 20min (palladium ions are reduced to active metal palladium attached to the particle surface), washed with deionized water until neutral, Then add it to the sodium hypophosphite solution of 50g/L and soak for 20min (to remove tin and palladium ions on the particle surface), dry after solid-liquid separation, and the solid-liquid ratio in the treatment process is 60g/L;
  • the composition of the alloy electroplating solution is 30g/L of PbCl 2 , 45g/L of NiCl 2 , 50g/L of NH 2 SO 3 H, 120g/L of HEDP, 10g/L of Hydrazine hydrochloride, pH 9-10, current density 0.5-1A/dm 2 , temperature 25°C;
  • Electroplating Add the carbon-containing particles treated by S2 into the electroplating solution, perform plating under stirring, and electroplate for 8 minutes;
  • Carbonization treatment soak the dealloyed particles in dichloromethane, remove the internal polystyrene, add them to 1g/mL starch solution, and carry out hydrothermal reaction.
  • the solid-to-liquid ratio of the hydrothermal reaction is 1g: 2mL, the reaction temperature is 160°C, and the reaction time is 3h. After the reaction is completed, the solid is collected and then carbonized.
  • the carbonization is carried out in an inert atmosphere at 215°C for 12h, and the dealloyed sodium ion battery negative electrode material is obtained.
  • This comparative example prepares a kind of Sn/C composite material by carbothermal reduction method, and concrete process is:
  • SnO2 and activated carbon powder with a material ratio of 1:3 in an agate mortar, mix well, put the mixture into a porcelain boat, place it in a tube furnace, and heat it at 5°C/min under the protection of argon. Raise the temperature to 950°C, keep it warm for 8h, and then naturally cool to room temperature to obtain the Sn/C composite material.
  • the material is mainly composed of Sn spherical particles and block-shaped activated carbon.
  • the Sn balls are uniformly dispersed and adsorbed on the block-shaped activated carbon.
  • the size of the Sn spherical particles is about 0.5-7 ⁇ m.

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
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Abstract

La présente demande concerne un matériau d'électrode négative de batterie sodium-ion désallié, et un procédé de préparation associé. Le matériau d'électrode négative de batterie sodium-ion est composé de particules de carbone solide et d'un maillage métallique à l'échelle nanométrique revêtu sur la surface des particules de carbone solide, ou est composé d'un maillage métallique à l'échelle nanométrique et d'un squelette carboné supportant à l'intérieur dudit maillage, le squelette carboné étant creux ou poreux tridimensionnel, et la composition du maillage métallique à l'échelle nanométrique étant au moins l'une de Sn, Pb, Bi, Ge ou Sb. La combinaison du maillage métallique et du matériau carboné peut améliorer la résistance et la conductivité des particules. De plus, la structure de squelette carboné creux ou poreux tridimensionnel peut augmenter la surface spécifique du matériau, ce qui est plus propice à la désintercalation d'ions sodium et peut améliorer les performances cycliques, ainsi que la capacité spécifique.
PCT/CN2022/135886 2022-02-21 2022-12-01 Matériau d'électrode négative de batterie sodium-ion désallié, et procédé de préparation associé WO2023155540A1 (fr)

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Application Number Priority Date Filing Date Title
GB2314015.5A GB2619644A (en) 2022-02-21 2022-12-01 Dealloyed sodium ion battery negative electrode material and preparation method therefor
DE112022002474.7T DE112022002474T5 (de) 2022-02-21 2022-12-01 Entladenes Anodenmaterial für eine Natrium-Ionen-Batterie und Verfahren zu dessen Herstellung

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CN202210155245.6A CN114725387A (zh) 2022-02-21 2022-02-21 去合金化钠离子电池负极材料及其制备方法
CN202210155245.6 2022-02-21

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CN114725387A (zh) * 2022-02-21 2022-07-08 广东邦普循环科技有限公司 去合金化钠离子电池负极材料及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108493403A (zh) * 2018-05-17 2018-09-04 中山大学 一种自支撑钠离子电池负极的合成方法
CN108695498A (zh) * 2018-05-16 2018-10-23 东北大学秦皇岛分校 一种多孔碳内嵌锡基合金的电池负极材料及其制备方法
CN108987688A (zh) * 2018-06-22 2018-12-11 清华大学深圳研究生院 一种碳基复合材料、制备方法及钠离子电池
CN109817920A (zh) * 2019-01-22 2019-05-28 陕西科技大学 一种硒包覆碳纳米管/石墨烯的制备方法及应用
US20190165365A1 (en) * 2017-11-30 2019-05-30 Nanotek Instruments, Inc. Anode Particulates or Cathode Particulates and Alkali Metal Batteries Containing Same
CN114725387A (zh) * 2022-02-21 2022-07-08 广东邦普循环科技有限公司 去合金化钠离子电池负极材料及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190165365A1 (en) * 2017-11-30 2019-05-30 Nanotek Instruments, Inc. Anode Particulates or Cathode Particulates and Alkali Metal Batteries Containing Same
CN108695498A (zh) * 2018-05-16 2018-10-23 东北大学秦皇岛分校 一种多孔碳内嵌锡基合金的电池负极材料及其制备方法
CN108493403A (zh) * 2018-05-17 2018-09-04 中山大学 一种自支撑钠离子电池负极的合成方法
CN108987688A (zh) * 2018-06-22 2018-12-11 清华大学深圳研究生院 一种碳基复合材料、制备方法及钠离子电池
CN109817920A (zh) * 2019-01-22 2019-05-28 陕西科技大学 一种硒包覆碳纳米管/石墨烯的制备方法及应用
CN114725387A (zh) * 2022-02-21 2022-07-08 广东邦普循环科技有限公司 去合金化钠离子电池负极材料及其制备方法

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GB2619644A9 (en) 2024-02-07
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GB202314015D0 (en) 2023-11-01
GB2619644A (en) 2023-12-13

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