WO2024259628A1 - Électrode riche en lithium magnétique, procédé de préparation associé et utilisation associée - Google Patents

Électrode riche en lithium magnétique, procédé de préparation associé et utilisation associée Download PDF

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Publication number
WO2024259628A1
WO2024259628A1 PCT/CN2023/101678 CN2023101678W WO2024259628A1 WO 2024259628 A1 WO2024259628 A1 WO 2024259628A1 CN 2023101678 W CN2023101678 W CN 2023101678W WO 2024259628 A1 WO2024259628 A1 WO 2024259628A1
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lithium
magnetic
electrode
rich
optionally
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Chinese (zh)
Inventor
余海军
李爱霞
谢英豪
李长东
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Hunan Brunp Recycling Technology Co Ltd
Guangdong Brunp Recycling Technology Co Ltd
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Hunan Brunp Recycling Technology Co Ltd
Guangdong Brunp Recycling Technology Co Ltd
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Priority to PCT/CN2023/101678 priority Critical patent/WO2024259628A1/fr
Priority to CN202380009670.7A priority patent/CN117015867A/zh
Priority to ARP240100494A priority patent/AR132005A1/es
Publication of WO2024259628A1 publication Critical patent/WO2024259628A1/fr
Anticipated expiration legal-status Critical
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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
    • 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
    • H01M4/04—Processes of manufacture in general
    • 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
    • H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
    • 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
    • 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
    • H01M4/1393—Processes of manufacture of electrodes based on 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials

Definitions

  • the present invention belongs to the technical field of lithium extraction from salt lakes, and relates to a magnetic lithium-rich electrode and a preparation method and application thereof.
  • Lithium is an important strategic resource and is widely used in the field of lithium batteries.
  • the rapid development of the new energy field has led to a rapid increase in the market demand for lithium resources.
  • Low-cost and efficient lithium resource development has become an important guarantee for companies to participate in market competition.
  • the proven lithium resources in nature are mainly found in salt lake brine, seawater and ores, of which salt lake lithium resources account for about 70%. Due to the high cost and difficulty of lithium ore mining, and the fact that it has become increasingly scarce and exhausted with continuous mining, extracting lithium from salt lake brine has become a trend in lithium resource development.
  • the principle of electrochemical lithium extraction is to charge the working electrode to release lithium ions to form a lithium ion sieve, discharge it in brine to allow lithium ions to selectively enter the lithium ion sieve, and achieve lithium enrichment through cyclic operation of the charge and discharge process.
  • CN105600807A discloses a method for electrochemically extracting lithium salt from brine with a high magnesium-to-lithium ratio, wherein a sharp Crystalline LiMn 2 O 4 is uniformly coated on a titanium mesh current collector as a working electrode.
  • the titanium mesh is placed in a LiCl solution as a counter electrode.
  • the electrode is charged at a constant voltage to release lithium ions from LiMn 2 O 4 to form a lithium ion sieve.
  • Discharging the electrode system in a high magnesium-to-lithium ratio brine can selectively embed lithium ions into the lithium ion sieve.
  • the charge and discharge cycle operation realizes the electrochemical extraction of lithium salts.
  • the purpose of the present disclosure is to provide a magnetic lithium-rich electrode and a preparation method and application thereof.
  • the present disclosure applies a magnetic field during the electrode preparation process through a magnetic field-assisted method, which can increase the porosity of the electrode and the lithium ion conduction rate, thereby increasing the mass transfer rate inside the electrode and significantly improving the electrochemical lithium extraction efficiency.
  • an embodiment of the present disclosure provides a magnetic lithium-rich electrode, which includes a current collector and an active material layer arranged on the surface of the current collector, wherein the active material layer includes an electrode active material, a magnetic substance, a conductive agent and a binder, and the porosity of the magnetic lithium-rich electrode is 10 to 60%, for example: 10%, 20%, 30%, 40% or 60%, etc.
  • the magnetic lithium-rich electrode described in the embodiment of the present disclosure contains magnetic material.
  • a magnetic field is applied during the preparation of the electrode.
  • the movement direction of the magnetic particles is controlled by changing the direction of the magnetic field, so that the magnetic particles rotate repeatedly under the action of the changing magnetic field, thereby improving the electrode porosity and lithium ion conductivity.
  • the current collector comprises carbon fiber or titanium mesh.
  • the electrode active material includes any one of lithium manganese oxide, lithium iron phosphate, or lithium manganese iron phosphate, or a combination of at least two thereof.
  • the magnetic substance includes ferrosoferric oxide.
  • the particle size of the magnetic material is 10-200 nm, for example, 10 nm, 50 nm, 80 nm, 100 nm or 200 nm.
  • the conductive agent includes acetylene black and/or conductive carbon black.
  • the binder includes polyvinylidene fluoride.
  • the mass ratio of the electrode active material, magnetic substance, conductive agent and binder is 1:(0.01-0.2):(0.1-0.2):(0.1-0.15), for example: 1:0.01:0.1:0.1, 1:0.05:0.12:0.11, 1:0.1:0.15:0.12, 1:0.15:0.18:0.14 or 1:0.2:0.2:0.15, etc.
  • the lithium ion conductivity of the magnetic lithium-rich electrode is 10 -5 to 10 -2 S/cm, for example, 10 -5 S/cm, 2 ⁇ 10 -4 S/cm, 5 ⁇ 10 -3 S/cm, 8 ⁇ 10 -3 S/cm or 10 -2 S/cm.
  • the porosity of the magnetic lithium-rich electrode is 20-50%.
  • the porosity of the magnetic lithium-rich electrode described in the embodiment of the present disclosure is better controlled at 20-50%. If the pores are too large, the mechanical strength of the electrode is poor, which reduces the cycle performance. If the porosity is too small, the mass transfer effect of the brine solution is poor.
  • the present disclosure provides a method for preparing a magnetic lithium-rich electrode as described in the first aspect, the preparation method comprising the following steps:
  • the electrode active material, magnetic substance, conductive agent, binder and solvent are mixed to obtain slurry, a reversing magnetic field is applied to the current collector, and the slurry is coated on the surface of the current collector to obtain a lithium-rich electrode.
  • a small amount of magnetic material is added when preparing the electrode slurry, and a changing magnetic field is applied during the coating process to make the magnetic material move in different directions in the electrode.
  • the movement trajectory can form a pore structure in the electrode, that is, the path for lithium ions to move in the active material layer, thereby improving the lithium ion conductivity.
  • the solvent comprises N-methylpyrrolidone.
  • the viscosity of the slurry is 1-10 Pa ⁇ s, for example: 1 Pa ⁇ s, 2 Pa ⁇ s, 5 Pa ⁇ s, 8Pa ⁇ s or 10Pa ⁇ s, etc.
  • the intensity of the variable magnetic field is 0.5-5T, for example, 0.5T, 1T, 2T, 3T, 4T or 5T.
  • the coating density is 150-200 mg/cm 2 , for example, 150 mg/cm 2 , 160 mg/cm 2 , 170 mg/cm 2 , 180 mg/cm 2 or 200 mg/cm 2 .
  • the coating is followed by drying.
  • the drying temperature is 50-80°C, for example, 50°C, 55°C, 60°C, 70°C or 80°C.
  • the drying time is 4 to 8 hours, for example: 4 hours, 5 hours, 6 hours, 7 hours or 8 hours.
  • the present disclosure provides a method for extracting lithium from a salt lake by electrochemical deintercalation assisted by a magnetic field, the method comprising the following steps:
  • the electrolysis device is separated into an anode chamber and a cathode chamber by an anion exchange membrane, a magnetic lithium-rich electrode is placed in the anode chamber, and a magnetic lithium-poor electrode is placed in the cathode chamber.
  • Salt lake brine is injected into the cathode chamber, and a salt solution is injected into the anode chamber.
  • a magnetic field is applied to the electrodes while power is supplied at a constant voltage. The current is as low as 150 mA to terminate the reaction.
  • adding a magnetic field during the lithium extraction process can promote the flow of brine, increase the contact rate between brine and active substances, and improve the efficiency of lithium extraction.
  • the electrolyte in step (1) includes sodium chloride solution and/or potassium chloride solution.
  • the concentration of the electrolyte is 0.05-0.1 mol/L, for example, 0.05 mol/L, 0.06 mol/L, 0.07 mol/L, 0.08 mol/L or 0.1 mol/L.
  • the voltage of the constant voltage reaction is 0.8 to 1.2 V, for example, 0.8 V, 0.9 V, 1V, 1.1V or 1.2V, etc.
  • the salt solution in step (2) includes sodium chloride solution and/or potassium chloride solution.
  • the concentration of the salt solution is 0.05-0.1 mol/L, for example, 0.05 mol/L, 0.06 mol/L, 0.07 mol/L, 0.08 mol/L or 0.1 mol/L.
  • the constant voltage power supply in step (2) is 0.3-1.2V, for example, 0.3V, 0.5V, 0.8V, 1V or 1.2V.
  • the strength of the magnetic field is 0.1-1 T, for example, 0.1 T, 0.2 T, 0.5 T, 0.8 T or 1 T.
  • the present disclosure has the following beneficial effects:
  • the present invention adds a small amount of magnetic material when preparing electrode slurry, and applies a changing magnetic field during the coating process to make the magnetic material move in different directions in the electrode.
  • the movement trajectory can form a pore structure in the electrode, that is, a path for lithium ions to move in the active material layer, thereby improving lithium ion conductivity.
  • the present invention applies a magnetic field with controllable size and direction to the electrode, which can adjust the motion state of the magnetic substance in the electrode.
  • the motion of the magnetic substance in the mass transfer channel can disturb the brine, promote the flow of the brine, accelerate the contact between the brine and the active substance, and improve the efficiency of lithium extraction.
  • the electrode prepared in the present invention has a good mass transfer effect on brine. After lithium extraction, the lithium concentration in the lithium-rich anode liquid can reach more than 3.04 g/L, and has excellent electrochemical salt lake lithium extraction performance.
  • FIG1 is a schematic diagram of the structure of the magnetic lithium-rich electrode according to Example 1 of the present disclosure, wherein 1-electrode activity 1-Magnetic material, 2-Magnetic substance, 3-Magnetic lines of force.
  • Figure 2 is a schematic diagram of a device for extracting lithium from salt lakes by means of magnetic field-assisted electrochemical deintercalation according to Example 1 of the present disclosure, wherein 1-coil, 2-iron core, 3-lithium ions, 4-KCl solution, 5-anion exchange membrane, and 6-brine.
  • This embodiment provides a method for extracting lithium from a salt lake by electrochemical deintercalation assisted by a magnetic field, the method comprising the following steps:
  • the slurry was coated on a titanium mesh current collector at a density of 150 mg/cm 2 , and a magnetic field with a strength of 2 T was applied to the current collector at a frequency of 2 times/min, so that the magnetic particles rotated repeatedly under the action of the changing magnetic field, and then dried at 80°C for 4 h to obtain a magnetic lithium-rich electrode with a porosity of 30% and a lithium ion conductivity of 5.83 ⁇ 10 -3 S/cm;
  • the lithium-rich electrode was delithiated at a constant voltage of 1.0 V to obtain a magnetic lithium-poor electrode
  • the electrolysis device is separated into an anode chamber and a cathode chamber by an anion exchange membrane, and a magnetic lithium-rich electrode and a magnetic lithium-poor electrode are placed in the anode chamber and the cathode chamber respectively.
  • Brine is injected into the cathode chamber, and a 0.05KCl solution is injected into the anode chamber.
  • Lithium is extracted at a constant voltage of 0.3V.
  • a 1T reversing magnetic field is applied to the electrode by a magnetic field regulating device.
  • the frequency of the reversing is 3 times/min.
  • the movement state of the magnetic material in the electrode is regulated. When the current is as low as 150mA, the reaction is terminated.
  • FIG1 The schematic diagram of the structure of the magnetic lithium-rich electrode in a magnetic field is shown in FIG1 .
  • a schematic diagram of a device for chemical deintercalation of lithium from salt lakes is shown in FIG2 .
  • the present invention applies a reverse magnetic field during the process of extracting lithium from salt lakes. Due to the presence of magnetic substances in the electrodes, the motion state of the magnetic substances changes under the action of the reverse magnetic field, which can promote the flow of brine, accelerate the contact between brine and active substances, and improve the efficiency of lithium extraction.
  • This embodiment provides a method for extracting lithium from a salt lake by electrochemical deintercalation assisted by a magnetic field, the method comprising the following steps:
  • the slurry was coated on a titanium mesh current collector at a density of 150 mg/cm 2 , and a magnetic field with a strength of 0.5 T was applied to the current collector at a frequency of 2 times/min to make the magnetic particles rotate repeatedly under the action of the changing magnetic field.
  • the mixture was then dried at 50°C for 8 h to obtain a magnetic lithium-rich electrode with a porosity of 20% and a lithium ion conductivity of 4.67 ⁇ 10 -3 S/cm.
  • the lithium-rich electrode was delithiated at a constant voltage of 1.0 V to obtain a magnetic lithium-poor electrode
  • the electrolysis device is separated into an anode chamber and a cathode chamber by an anion exchange membrane, and a magnetic lithium-rich electrode and a magnetic lithium-poor electrode are placed in the anode chamber and the cathode chamber respectively.
  • Brine is injected into the cathode chamber, and a 0.05KCl solution is injected into the anode chamber.
  • Lithium is extracted at a constant voltage of 0.5V.
  • a 0.1T reversing magnetic field is applied to the electrode by a magnetic field adjustment device, and the frequency of reversing is 3 times/min to regulate the motion state of the magnetic material in the electrode.
  • the current is as low as 150mA, the reaction is terminated.
  • This embodiment provides a method for extracting lithium from a salt lake by electrochemical deintercalation assisted by a magnetic field, the method comprising the following steps:
  • the slurry was coated on a titanium mesh current collector at a density of 200 mg/cm 2 , and a magnetic field with a strength of 1 T was applied to the current collector at a frequency of 2 times/min, so that the magnetic particles rotated repeatedly under the action of the changing magnetic field, and then dried at 60°C for 5 h to obtain a magnetic lithium-rich electrode with a porosity of 40% and a lithium ion conductivity of 6.35 ⁇ 10 -3 S/cm;
  • the lithium-rich electrode was delithiated at a constant voltage of 1.0 V to obtain a magnetic lithium-poor electrode
  • the electrolysis device is separated into an anode chamber and a cathode chamber by an anion exchange membrane, and a magnetic lithium-rich electrode and a magnetic lithium-poor electrode are placed in the anode chamber and the cathode chamber respectively.
  • Brine is injected into the cathode chamber, and a 0.05KCl solution is injected into the anode chamber.
  • Lithium is extracted at a constant voltage of 0.5V.
  • a 0.5T reversing magnetic field is applied to the electrode by a magnetic field regulating device, and the frequency of reversing is 3 times/min to regulate the motion state of the magnetic material in the electrode.
  • the current is as low as 150mA, the reaction is terminated.
  • the difference between this embodiment and embodiment 1 is that the magnetic field strength in step (1) is 0.3 T, and a magnetic lithium-rich electrode with a porosity of 10% and a lithium ion conductivity of 2.39 ⁇ 10 -3 S/cm is obtained.
  • Other conditions and parameters are exactly the same as those in embodiment 1.
  • the magnetic field strength in step (1) is 6 T, and a magnetic lithium-rich electrode with a porosity of 60% and a lithium ion conductivity of 6.61 ⁇ 10 -3 S/cm is obtained.
  • Other conditions and parameters are exactly the same as those in embodiment 1.
  • step (1) no magnetic field is applied to the current collector during the coating process, and the other conditions and parameters are exactly the same as those in Example 1.
  • step (3) no magnetic field is applied to the electrodes during the lithium extraction process, and the other conditions and parameters are exactly the same as those in Example 1.
  • a method for extracting lithium from a salt lake by electrochemical deintercalation assisted by a magnetic field comprising the following steps:
  • lithium iron phosphate 100 g was mixed with 10 g of sodium bicarbonate, 20 g of acetylene black and 15 g of PVDF, added to NMP, mixed evenly to obtain an electrode slurry, coated on a titanium mesh current collector at a density of 150 mg/ cm2 , and then dried at 80°C for 4 h to obtain a lithium-rich electrode;
  • the lithium-rich electrode was delithiated at a constant voltage of 1.0 V to obtain a lithium-poor electrode
  • the electrolysis device is separated into an anode chamber and a cathode chamber by an anion exchange membrane, and a lithium-rich electrode and a lithium-poor electrode are placed in the anode chamber and the cathode chamber respectively.
  • Brine is injected into the cathode chamber and a 0.05KCl solution is injected into the anode chamber.
  • Lithium is extracted at a constant voltage of 0.3 V. When the current drops to 150 mA, the reaction is terminated.
  • the lithium concentration of the lithium-rich solution prepared by the method for extracting lithium from salt lakes by magnetic field-assisted electrochemical deintercalation can reach above 3.04 g/L.
  • Example 1 By comparing Example 1 with Examples 4-5, it can be seen that in the lithium extraction process described in the present disclosure, the magnetic field strength applied to the current collector when preparing the lithium-rich electrode will affect the subsequent lithium extraction effect.
  • the first magnetic field strength is controlled at 0.5-5T, and the lithium extraction effect is better. If the strength is too large, the movement range of the magnetic particles is too large and the movement speed is too fast, resulting in excessive pores, poor mechanical strength of the electrode, and reduced cycle performance. If the strength is too small, the magnetic particles cannot rotate, resulting in a small porosity and poor mass transfer of the brine solution.
  • Example 1 By comparing Example 1 with Examples 6-7, it can be seen that in the process of lithium extraction described in the present disclosure, the electrode is applied The magnetic field strength will affect the subsequent lithium extraction effect.
  • the second magnetic field strength is controlled at 0.1 ⁇ 1T, and the lithium extraction effect is better. If the strength is too high, the magnetic particles will move out of a certain range, resulting in uneven distribution, which will lead to uneven disturbance of the brine and uneven mass transfer of the solution. If the strength is too low, the magnetic particles will move with a small amplitude and have little disturbance effect on the brine.
  • Example 1 By comparing Example 1 and Comparative Example 1, it can be seen that when preparing the electrode slurry, the present invention adds a small amount of magnetic material, and applies a changing magnetic field during the coating process to make the magnetic material move in different directions in the electrode.
  • the movement trajectory can form a pore structure in the electrode, that is, the path for lithium ions to move in the active material layer, thereby improving the lithium ion conductivity.
  • Example 1 By comparing Example 1 with Comparative Example 2, it can be seen that in the process of lithium extraction, the present disclosure applies a magnetic field with controllable size and direction to the electrode, which can adjust the motion state of the magnetic substance in the electrode.
  • the motion of the magnetic substance in the mass transfer channel can disturb the brine, promote the flow of the brine, accelerate the contact between the brine and the active substance, and improve the efficiency of lithium extraction.
  • Example 1 By comparing Example 1 and Comparative Example 1, it can be seen that the present invention applies a magnetic field during the preparation of the electrode, and controls the movement direction of the magnetic particles by changing the direction of the magnetic field, so that the magnetic particles rotate repeatedly under the action of the changing magnetic field, thereby improving the electrode porosity and the lithium ion conductivity.
  • the addition of a magnetic field during the lithium extraction process can promote the flow of brine, increase the contact rate between brine and active substances, and improve the lithium extraction efficiency.

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

La présente divulgation propose une électrode riche en lithium magnétique, un procédé de préparation associé et une utilisation associée. L'électrode riche en lithium magnétique comprend un collecteur de courant et une couche de matériau actif disposée sur une surface du collecteur de courant ; la couche de matériau actif comprend un matériau actif d'électrode, un matériau magnétique, un agent conducteur et un liant ; la porosité de l'électrode riche en lithium magnétique est de 10 à 60 %. Dans la présente divulgation, au moyen d'un procédé d'extraction de lithium assisté par champ magnétique dans lequel un champ magnétique est appliqué dans un processus de préparation d'électrode, la porosité d'électrode et le taux de conduction d'ions lithium peuvent être améliorés. Ainsi, le taux de transfert de masse interne d'électrode est augmenté et l'efficacité d'extraction de lithium électrochimique est nettement améliorée.
PCT/CN2023/101678 2023-06-21 2023-06-21 Électrode riche en lithium magnétique, procédé de préparation associé et utilisation associée Ceased WO2024259628A1 (fr)

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PCT/CN2023/101678 WO2024259628A1 (fr) 2023-06-21 2023-06-21 Électrode riche en lithium magnétique, procédé de préparation associé et utilisation associée
CN202380009670.7A CN117015867A (zh) 2023-06-21 2023-06-21 一种磁性富锂态电极及其制备方法和应用
ARP240100494A AR132005A1 (es) 2023-06-21 2024-02-28 Electrodo magnético rico en litio, su método de preparación y uso

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CN115663113A (zh) * 2022-11-18 2023-01-31 楚能新能源股份有限公司 一种负极电极片及其制备方法、锂离子电池组装方法

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