Method for producing oxide ceramic particles coated with aminated functional groups

Abstract

This invention provides a method for producing oxide ceramic particles coated with aminated functional groups. [Solution] The method includes: step A, which involves adding a plurality of first LLZO particles and methanol to a wet mixer and mixing and polishing them; step B, which involves adding tris(hydroxymethyl)aminomethane and tris(hydroxymethyl)aminomethane hydrochloride to the wet mixer and polishing and stirring to form a hydroxide ion layer on the outer surface of the first LLZO particles; and step C, which involves adding dopamine hydrochloride to the wet mixer and continuously polishing and stirring to bind the dopamine molecules of the dopamine hydrochloride to the hydroxide ion layer of the first LLZO particles, thereby forming a dopamine layer on the outside of the hydroxide ion layer of the first LLZO particles and forming composite LLZO particles. A CTAB surfactant is further added to the wet mixer. In step C, after polishing and mixing, an alcohol-based solution containing carbon nanotubes is further added to form LLZO particles coated with carbon material.

Description

[Technical Field]

[0001] The present invention relates to battery electrode materials, and more specifically, to a method for producing oxide ceramic particles coated with amineralized functional groups. [Background technology]

[0002] A battery is primarily formed by arranging electrodes (positive and negative electrodes) in an electrolyte. In conventional technology, the ionic conductivity is increased by adding LLZO material to the electrodes. Because LLZO material has high ionic conductivity for lithium ions, when lithium ions pass through the electrodes, the dispersed LLZO particles act as guides, dispersing the lithium ion pathways. This ensures that lithium ions are distributed uniformly within the electrodes, preventing abnormal accumulation of lithium ions in the electrode slurry and thus preventing side reactions with the electrode slurry. [Overview of the Initiative] [Problems that the invention aims to solve]

[0003] However, in the conventional technology described above, the LLZO material tends to cause side reactions with the electrode material during the manufacturing process of the electrode, resulting in deterioration of the electrode slurry material.

[0004] Therefore, the inventors believed that the above-mentioned drawbacks could be improved, and after diligent research, they arrived at the proposal of a method for producing oxide ceramic particles coated with aminated functional groups in a rational and effective manner that addresses the problem.

[0005] This invention has been made in view of the above-mentioned conventional problems. To solve the above problems, the main object of this invention is to provide a method for producing oxide ceramic particles coated with aminated functional groups. [Means for solving the problem]

[0006] To solve the above problems, the method for producing oxide ceramic particles coated with the aminated functional group of the present invention is as follows: A method for producing oxide ceramic particles coated with an aminated functional group, wherein the oxide ceramic particles are a plurality of composite LLZO particles, and the production method is: Step A involves introducing a plurality of first LLZO particles and methanol into a wet mixer and mixing and polishing them at a first rotational speed to form a first mixed slurry, Step A involves adding a plurality of zirconium beads to the wet mixer, mixing and polishing them, and reducing the particle size of the plurality of first LLZO particles to less than 500 nm. Tris(hydroxymethyl)aminomethane ((HOCH2)3CNH2) and tris(hydroxymethyl)aminomethane hydrochloride (NH2C(CH2OH)3·HCl) are added to the wet mixer and polished and stirred together with the first mixed slurry to form a second mixed slurry, so that the outer surface of each of the first LLZO particles is coated with a hydroxide ion layer, and the tris(hydroxymethyl)aminomethane is the first OH - Ion, 2OH - Ions, and 3OH - The ion has three OH- ions, and the first OH - Ions and the aforementioned 2OH - The ion binds to the oxidative functional group of the corresponding first LLZO particle, and the third OH - By extending the ions toward the outer surface of the corresponding first LLZO particles, a hydroxide ion layer is formed that covers the outer surface of the corresponding first LLZO particles, and the hydroxide ion layer 24 is composed of multiple corresponding third OH - Step B, which involves ions, After adding the tris(hydroxymethyl)aminomethane and the tris(hydroxymethyl)aminomethane hydrochloride, increasing the rotational speed of the wet mixer to a second rotational speed, the second rotational speed being higher than the first rotational speed, step B, By adding dopamine hydrochloride to the wet mixer and grinding and stirring it together with the second mixed slurry, a third mixed slurry having a plurality of composite LLZO particles is formed, and the OH of the dopamine molecule of the dopamine hydrochloride - Ions are caused to undergo a dehydration polymerization reaction with the third OH of each of the hydroxide ion layers of the first LLZO particles, binding each of the first LLZO particles to a corresponding plurality of dopamine molecules, and a copolymerization reaction occurs between these corresponding plurality of dopamine molecules, forming a dopamine layer that coats the outside of the hydroxide ion layer in the corresponding first LLZO particles, step C of forming composite LLZO particles corresponding to each of the first LLZO particles and their corresponding hydroxide ion layers and the dopamine layer, - In step C, the rotational speed of the wet mixer is decreased to a third rotational speed, the third rotational speed being less than the second rotational speed, step C, and includes. In step C, the rotational speed of the wet mixer is decreased to a third rotational speed, the third rotational speed being less than the second rotational speed, step C,

Effect of the Invention

[0007] This invention divides the conventional single-mixing process into multiple mixing and polishing steps. In the prior art, LLZO particles, tris(hydroxymethyl)aminomethane, and the dopamine hydrochloride are manufactured by mixing them in a single step, which prevents sufficient reaction, resulting in poor dopamine coating and ineffective protection of the LLZO particles. Therefore, by dividing the process into multiple mixing and polishing steps, this invention extends the overall reaction time and further reduces the size of the LLZO particles, increasing their surface area. This allows the LLZO particles to react effectively and sufficiently with the tris(hydroxymethyl)aminomethane and the dopamine hydrochloride, forming a solid dopamine layer on the surface of the LLZO particles. This ensures that the dopamine material completely coats the LLZO particles, protecting them from erosion by moisture. The entire LLZO particle structure coating the dopamine layer has enhanced lithium-ion guiding capabilities and does not react with water during the electrode manufacturing process, achieving a more suitable battery electrode material manufacturing quality.

[0008] Other features of the present invention will be made clearer by description in this specification and the accompanying drawings. [Brief explanation of the drawing]

[0009] [Figure 1] This is a flowchart showing a method for producing oxide ceramic particles coated with an aminated functional group according to one embodiment of the present invention. [Figure 2] This is a flowchart showing step A of a method for producing oxide ceramic particles coated with an aminated functional group according to one embodiment of the present invention. [Figure 3] This flowchart shows step B of a method for producing oxide ceramic particles coated with an aminated functional group according to one embodiment of the present invention. [Figure 4] This flowchart shows step C of a method for producing oxide ceramic particles coated with an aminated functional group according to one embodiment of the present invention. [Figure 5] An example of a method for producing oxide ceramic particles coated with an aminated functional group according to one embodiment of the present invention is shown. [Figure 6] It is an enlarged view showing the structure of a hydroxide ion layer according to an embodiment of the present invention. [Figure 7] It is a schematic diagram showing the structure in which a dehydration copolymerization reaction is formed by an OH− ion of a dopamine molecule and the third OH− ion of the hydroxide ion layer according to an embodiment of the present invention, and the structure of a part thereof. [Figure 8] It is a schematic diagram showing the structure of a part that generates an attractive force by a CTAB layer, an OH− ion of dopamine, and the third OH− ion of the hydroxide ion layer according to an embodiment of the present invention. [Figure 9] It is a cross-sectional view showing a CTAB layer covering the outside of a dopamine layer according to an embodiment of the present invention. [Figure 10] It is a schematic configuration diagram showing composite LLZO particles covering carbon nanotubes and nanoscale amorphous carbon according to an embodiment of the present invention.

Mode for Carrying Out the Invention

[0010] Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential for the solution of the invention.

[0011] First, a method for producing oxide ceramic particles coated with an aminated functional group according to the present invention will be described while referring to FIGS. 1 to 10. The present invention relates to a method for producing oxide ceramic particles coated with an aminated functional group, wherein the oxide ceramic particles are a plurality of composite LLZO particles 100, and are mainly used as electrodes for solid or semi-solid batteries, and in particular as the positive electrode 200 of the solid or semi-solid battery. As shown in Figure 5, when a plurality of the composite LLZO particles 100 are used as the positive electrode 200 of the solid or semi-solid battery, the positive electrode 200 comprises a positive electrode substrate 210, which is a substrate on which the material of the positive electrode 200 is placed, and a positive electrode slurry layer 220 coated on the positive electrode substrate 210, wherein the positive electrode slurry layer 220 contains a positive electrode slurry 230 as a binder and a plurality of the composite LLZO particles 100 as guide lithium ions. Typically, the weight percentage of the plurality of composite LLZO particles 100 in the electrode slurry layer (especially the positive electrode slurry layer) is in the range of 0.5 wt% to 5 wt%.

[0012] Next, an example of the manufacturing process for the multiple composite LLZO particles 100 of the present invention will be described with reference to Figures 1 to 4.

[0013] <Process A>: Multiple first LLZO particles 10 and methanol 12 are placed in a wet mixer 500 and mixed and polished at a first rotation speed to form a first mixed slurry 15. The first LLZO particles 10 exhibit an irregular three-dimensional shape. The particle size of the first LLZO particles 10 before polishing is in the range of 2 μm to 10 μm.

[0014] Each of the first LLZO particles 10 is lithium lanthanum zirconium oxide (Li7La3Zr2O 12 ) or is composed of lithium lanthanum zirconium oxide doped with at least one metallic element.

[0015] The weight ratio of the total weight of the multiple first LLZO particles 10 to the methanol 12 is in the range of 0.8 to 1.2:4.

[0016] Multiple zirconium beads 101 are placed in the wet mixer 500 and mixed and polished to reduce the particle size of each of the first LLZO particles 10 to less than 500 nm. The first rotational speed of the wet mixer 500 is 2200 rpm ± 20%, and the particle size of the zirconium beads is in the range of 0.7 mm to 0.9 mm. The packing density of the total volume of the multiple zirconium beads 101 is in the range of 70% to 90%, which is the ratio of the total volume of the multiple first zirconium beads 101 to the polishing volume of the wet mixer 500. The polishing time is in the range of 1 hour to 1.5 hours, and the operating temperature is 20°C ± 4°C.

[0017] <Process B>: Tris(hydroxymethyl)aminomethane ((HOCH2)3CNH2)13 and tris(hydroxymethyl)aminomethane hydrochloride (NH2C(CH2OH)3·HCl)14 are added to the wet mixer 500 and polished and stirred with the first mixed slurry 15 to form the second mixed slurry 20. The outer surface of each of the first LLZO particles is entirely covered with hydroxide ions (OH - The tris(hydroxymethyl)aminomethane is coated with a 24 layer. - Ion, 2OH - Ions, and 3OH - The three OH groups of ions - Having an ion, the first OH - Ions and the aforementioned 2OH - The ions bond by generating hydrogen bonding forces with the corresponding oxidative functional groups of the first LLZO particles 10. - By extending the ions toward the outer surface of the corresponding first LLZO particle 10 (see Figure 6), the corresponding hydroxide ions (OH) are coated toward the outer surface of the corresponding first LLZO particle 10. - ) form layer 24. The hydroxide ion layer 24 is composed of multiple corresponding 3OH -Contains ions. Although only two tris(hydroxymethyl)aminomethane molecules are shown in the figure for illustrative purposes, this does not limit the scope of the present invention.

[0018] The weight ratio of the tris(hydroxymethyl)aminomethane 13 to the tris(hydroxymethyl)aminomethane hydrochloride 14 is 8:2.

[0019] In step B, the tris(hydroxymethyl)aminomethane 13 and the tris(hydroxymethyl)aminomethane hydrochloride 14 are added, and then the rotation speed of the wet mixer 500 is increased to the second rotation speed for polishing and stirring, i.e., the second rotation speed is faster than the first rotation speed in step A. The second rotation speed is 2400 rpm ± 20%, the polishing time is 0.5 hours, and the operating temperature is 20°C ± 4°C.

[0020] The purpose of adding the tris(hydroxymethyl)aminomethane hydrochloride 14 is to control the pH value of the chemical reaction. The reaction between the first LLZO particles 10 and the tris(hydroxymethyl)aminomethane 13 requires catalytic activity in an alkaline environment. However, if the alkalinity is too high, the first LLZO particles 10 will be hydrolyzed and deteriorate. Therefore, by adding the tris(hydroxymethyl)aminomethane hydrochloride 14, the overall pH value is lowered, thereby reducing the alkalinity during the reaction.

[0021] <Process C>: Dopamine hydrochloride 25 is added to the wet mixer 500 and polished and stirred with the second mixed slurry 20 to form a third mixed slurry 30 having a plurality of the composite LLZO particles 100 (path a1 in Figure 4). The OH of the dopamine molecule of the dopamine hydrochloride 25 - The ions are the third OH of the hydroxide ion layer 24 in each of the first LLZO particles 10 -A dehydration polymerization reaction (polymerization triggered by dehydration) is induced with ions to bind each of the first LLZO particles 10 to a plurality of corresponding dopamine molecules. A copolymerization reaction occurs between these corresponding dopamine molecules, forming a dopamine layer 35 that covers the outside of the hydroxide ion layer 24 of the corresponding first LLZO particle 10. Each of the first LLZO particles 10, the corresponding hydroxide ion layer 24, and the dopamine layer 35 form a corresponding composite LLZO particle 100 (see Figure 7). The thickness of the dopamine layer 35 is in the range of 1 nm to 10 nm.

[0022] The weight ratio of the total weight of the multiple first LLZO particles 10, the total weight of the tris(hydroxymethyl)aminomethane 13 and the tris(hydroxymethyl)aminomethane hydrochloride 14, and the weight of the dopamine hydrochloride 25 is in the range of 1:0.8 to 1:2.2 to 2.4.

[0023] In step C, the rotational speed of the wet mixer 500 is reduced to a third rotational speed. The third rotational speed is less than the second rotational speed, the third rotational speed is 2000 rpm ± 20%, the polishing time is in the range of 0.5 hours to 1 hour, and the operating temperature is 20°C ± 4°C.

[0024] During the manufacturing process of the electrode, the multiple first LLZO particles 10 were prone to side reactions with the electrode slurry material, leading to a decrease in battery yield. Therefore, it is necessary to coat the outer layer of each of the first LLZO particles 10 with a protective layer to prevent the multiple first LLZO particles 10 from undergoing side reactions with the material in the electrode slurry during the manufacturing process. Since dopamine is hydrophobic, in this invention, dopamine hydrochloride 25 is added in step C, and each of the first LLZO particles 10 can be coated with the dopamine molecules of the dopamine hydrochloride 25, thereby preventing the first LLZO particles 10 from being eroded by moisture.

[0025] As shown in Figure 4, in step C described above, the dopamine hydrochloride 25 and the second mixed slurry 20 are mixed, and then the CTAB (cetyltrimethylammonium bromide) surfactant 60 is further added to the third mixed slurry 30 in the wet mixer 500 (path a2). The mixture is then continuously mixed and polished at the third rotation speed for 10 to 30 minutes, coating the outside of each dopamine layer 35 of the composite LLZO particles 100 with a CTAB layer 61. The weight ratio of the CTAB surfactant 60 to the dopamine hydrochloride 25 is in the range of 0.1% to 0.3%.

[0026] In the present invention, the purpose of adding the CTAB surfactant 60 is that in step C, the OH of each of the hydroxide ion layers 24 of the first LLZO particles 10 - The ions are not necessarily all OH of the dopamine molecules in the dopamine layer 35. - This does not involve a dehydration polymerization reaction with ions, but rather exposed OH on a portion of the surface of each of the composite LLZO particles 100. - Ions (the third OH of the hydroxide ion layer 24) - Ions or OH of the dopamine layer 35 - This is to generate ions (including ions). The CTAB surfactant 60 is formed by a plurality of CTAB molecules, with one side of each CTAB molecule carrying a positive charge and the other side carrying a negative charge. A portion of the CTAB molecules in the CTAB surfactant 60, depending on their polarity (i.e., the positively charged portion), generates ions with different polarities (i.e., OH) in the dopamine layer 35 and hydroxide ion layer 24 of the composite LLZO particles 100. -The CTAB surfactant 60 generates an attractive force with the ions and mixes into the corresponding dopamine layer 35 or hydroxide ion layer 24. Most of the CTAB molecules in the CTAB surfactant 60 generate an attractive force with each other due to their polarity, surrounding the outside of each dopamine layer 35 of the composite LLZO particles 100. These CTAB molecules, which are mixed into the dopamine layer 35 and the hydroxide ion layer 24, and the CTAB molecules surrounding the outside of the dopamine layer 35, form the corresponding CTAB layer 61 (see Figures 8 and 9), further completing the coating of each of the first LLZO particles 10. The CTAB surfactant 60 can further enhance the dispersibility of each of the first LLZO particles 10, preventing aggregation and reducing the possibility of lithium fluorination (induced by interaction with Li) of the multiple first LLZO particles 10 and the positive electrode slurry. The distribution ratio of CTAB molecules located outside the dopamine layer 35, and the distribution ratio of CTAB molecules located within the dopamine layer 35 and the hydroxide ion layer 24, is a result that occurred naturally during manufacturing.

[0027] In step C described above, the dopamine hydrochloride 25 (path a1) or the CTAB surfactant 60 (path a2) is added, polished, and mixed. Then, an alcohol-based solution 45 containing a plurality of carbon nanotubes (CNTs) 42 is further added to the third mixed slurry 30 in the wet mixer 500 and continuously mixed and stirred (paths a3 and a4 in Figure 4), so that the outside of each of the composite LLZO particles 100 is coated with the plurality of carbon nanotubes 42, forming LLZO particles 40 that coat the carbon material exhibiting a ball-like morphology (Figure 10). After adding the alcohol-based solution 45, the rotation speed of the wet mixer 500 is 2000 rpm ± 20%, the polishing time is 0.5 hours, and the operating temperature is 20°C ± 4°C. Preferably, the alcohol-based solution 45 is a methanol solution.

[0028] In the present invention, the length of each carbon nanotube 42 is in the range of 0.5 μm to 3 μm, and the weight ratio of the total weight of the alcohol-based solution 45 to the total weight of the third mixed slurry 30 is in the range of 0.01 to 0.5:100.

[0029] <Process F>: The third mixed slurry 30, which has multiple composite LLZO particles 100 formed in step C described above, is introduced into a rotary evaporator 550 to remove most of the liquid and other unwanted residues, and then further dried to obtain the final powder.

[0030] After going through the processes A through C described above, the size of each of the composite LLZO particles 100 is in the range of 50 nm to 200 nm.

[0031] Carbon nanotubes are used to enhance electron conductivity; that is, they form conductive bridges around the various different composite LLZO particles 100, thereby enabling electron conduction on the composite LLZO particles 100. Because carbon nanotubes have extremely high conductivity, lithium ions can be conducted between the different composite LLZO particles 100 via the carbon nanotubes 42, thereby increasing the overall conductivity of the electrode.

[0032] The alcohol-based solution 45 further comprises a plurality of nanoscale amorphous carbon 48, each of which is in the range of 10 nm to 40 nm in size. Each of the nanoscale amorphous carbon 48 is, for example, an amorphous carbon of a super P conductive agent. Both the nanoscale amorphous carbon 48 and the carbon nanotubes 42 are conductive agents. The nanoscale amorphous carbon 48 are in particle form, and the plurality of carbon nanotubes 42 are in elongated form, with gaps formed between different carbon nanotubes 42 that intersect vertically and horizontally. The plurality of nanoscale amorphous carbon 48 fill these gaps, and the charge is conducted to the next carbon nanotube 42 by the nanoscale amorphous carbon 48 spanning across them, thus further accelerating the transmission of electric current.

[0033] The above description is for the purpose of explaining the present invention and should not be interpreted as limiting or restricting the scope of the invention described in the claims. Furthermore, it goes without saying that the configuration of each part of the present invention is not limited to the above embodiments and can be modified in various ways within the technical scope described in the claims. [Explanation of Symbols]

[0034] 10. First LLZO particle 12 methanol 13 Tris(hydroxymethyl)aminomethane 14 Tris(hydroxymethyl)aminomethane hydrochloride 15. First mixed slurry 20. Second mixed slurry 24. Hydroxide ion layer 25. Dopamine hydrochloride 30. Third mixed slurry 35 Dopamine layer 40 LLZO particles coated with carbon material 42 Carbon nanotubes 45. Alcohol-based solutions 48 Nanoscale amorphous carbon 60 CTAB surfactant 61 CTAB layer 100 composite LLZO particles 101 Zirconium Beads 200 positive electrode 210 Positive electrode substrate 220 Cathode slurry layer 230 Positive electrode slurry 500 Wet Mixer 550 Rotary Evaporator

Claims

1. A method for producing oxide ceramic particles coated with an aminated functional group, wherein the oxide ceramic particles are a plurality of composite LLZO particles, and the production method is: Step A involves introducing a plurality of first LLZO particles and methanol into a wet mixer and mixing and polishing them at a first rotational speed to form a first mixed slurry, Step A involves adding a plurality of zirconium beads to the wet mixer, mixing and polishing them, and reducing the particle size of the plurality of first LLZO particles to less than 500 nm. Tris(hydroxymethyl)aminomethane (tris(hydroxymethyl)aminomethane, (HOCH 2 , 3 )), and tris(hydroxymethyl)aminomethane hydrochloride (tris(hydroxymethyl)aminomethane hydrochloride, NH 3 CNH 2 ), are added to the wet mixer and polished and stirred together with the first mixed slurry to form a second mixed slurry. The outer surfaces of each of the first LLZO particles are all coated with a hydroxide ion layer. The tris(hydroxymethyl)aminomethane has three OH 2 ions, namely the first OH 2 ion, the second OH 3 [[ID=le12]]ion, and the third OH - ion. The first OH - ion and the second OH - ion are bonded to the oxidation functional groups of the corresponding first LLZO particles. By extending the third OH - ion towards the outer surface of the corresponding first LLZO particle, a hydroxide ion layer covering the outer surface of the corresponding first LLZO particle is formed. The hydroxide ion layer 24 contains a plurality of corresponding third OH - ions. This is step B,​​​​ Step B involves adding the aforementioned tris(hydroxymethyl)aminomethane and tris(hydroxymethyl)aminomethane hydrochloride, then increasing the rotation speed of the wet mixer to a second rotation speed, where the second rotation speed is faster than the first rotation speed. By adding dopamine hydrochloride to the wet mixer and polishing and stirring it together with the second mixed slurry, a third mixed slurry having a plurality of complex LLZO particles is formed, and the OH of the dopamine molecule of the dopamine hydrochloride - The ions are the third OH in the hydroxide ion layer of each of the first LLZO particles. - Step C involves generating a dehydration polymerization reaction with ions to bind each of the first LLZO particles to a corresponding plurality of dopamine molecules, a copolymerization reaction occurring between these corresponding plurality of dopamin molecules to form a dopamine layer that coats the outside of the hydroxide ion layer on the corresponding first LLZO particle, and each of the first LLZO particles, the corresponding hydroxide ion layer, and the dopamine layer to form a corresponding composite LLZO particle, A method for producing oxide ceramic particles coated with an aminated functional group, characterized by comprising step C, in which the rotational speed of the wet mixer is reduced to a third rotational speed, and the third rotational speed is less than the second rotational speed.

2. In step C, the dopamine hydrochloride and the second mixed slurry are mixed, and then the CTAB (cetyltrimethylammonium bromide) surfactant is further added to the third mixed slurry in the wet mixer and mixed and polished to coat the outside of each dopamine layer of the composite LLZO particles with the CTAB layer. In step C, the OH of the hydroxide ion layer - All of the ions are the OH group of the dopamine molecule of the dopamine hydrochloride salt. - Instead of generating a dehydration polymerization reaction with ions, exposed OH forms on a portion of the surface of each of the composite LLZO particles. - Ions are generated, and the exposed OH - The ions are the third OH in the hydroxide ion layer. - Ions or the OH of the dopamine layer - The CTAB surfactant is an ion, and the CTAB surfactant is formed from multiple CTAB molecules, with one side of each CTAB molecule carrying a positive charge and the other side carrying a negative charge, and due to the polarity of a portion of the CTAB molecules in the CTAB surfactant, the polarity of the dopamine layer and the hydroxide ion layer of each of the composite LLZO particles differs. - A method for producing oxide ceramic particles coated with aminated functional groups according to claim 1, characterized in that an attractive force with ions is generated and mixed into the corresponding dopamine layer or hydroxide ion layer, the majority of the CTAB molecules of the CTAB surfactant generate an attractive force with each other due to their polarity, surrounding the outside of each of the dopamine layers of the composite LLZO particles, and these are mixed with the CTAB molecules in the dopamine layer and the hydroxide ion layer and the CTAB molecules surrounding the outside of the dopamine layer to form the corresponding CTAB layer.

3. A method for producing oxide ceramic particles coated with amineralized functional groups according to claim 1 or 2, characterized in that, after the polishing and mixing of step C is completed, an alcohol-based solution containing a plurality of carbon nanotubes is added to the third mixed slurry of the wet mixer, and the mixture is mixed and stirred to form LLZO particles that coat a plurality of carbon materials, and the outside of each of the composite LLZO particles is coated with a plurality of corresponding carbon nanotubes.

4. A method for producing oxide ceramic particles coated with aminated functional groups according to claim 1 or 2, further comprising step F, in which the third mixed slurry having a plurality of the composite LLZO particles formed in step C is introduced into a rotary evaporator, most of the liquid and other unwanted residues are removed, and then it is further dried to obtain a final powder.

5. The method for producing oxide ceramic particles coated with aminated functional groups according to claim 3, further comprising step F, of introducing the third mixed slurry having a plurality of the composite LLZO particles formed in step C into a rotary evaporator, removing most of the liquid and other unwanted residues, and then drying to obtain a final powder.

6. The method for producing oxide ceramic particles coated with an aminated functional group according to claim 3, wherein the alcohol-based solution further contains a plurality of nanoscale amorphous carbons, and the size of each of the nanoscale amorphous carbons is in the range of 10 nm to 40 nm.

7. The method for producing oxide ceramic particles coated with an aminated functional group according to claim 2, characterized in that the weight ratio of the weight of the CTAB surfactant to the weight of the dopamine hydrochloride is in the range of 0.1% to 0.3%.

8. The method for producing oxide ceramic particles coated with an amineralized functional group according to claim 3, characterized in that the length of each of the carbon nanotubes is in the range of 0.5 μm to 3 μm.

9. The method for producing oxide ceramic particles coated with an aminated functional group according to claim 3, characterized in that the weight ratio of the total weight of the alcohol-based solution to the total weight of the third mixed slurry in step C is in the range of 0.01 to 0.5:100, and the alcohol-based solution is methanol.

10. The method for producing oxide ceramic particles coated with an aminated functional group according to claim 1, characterized in that the oxide ceramic particles are used as electrodes for a solid or semi-solid battery.

11. A method for producing oxide ceramic particles coated with an amineralized functional group according to claim 10, characterized in that they are used in the positive electrode of the solid or semi-solid battery.

12. Each of the first LLZO particles is lithium lanthanum zirconium oxide (Li 7 La 3 Zr 2 O 12 A method for producing oxide ceramic particles coated with an aminated functional group according to claim 1, characterized in that the particle is composed of ) or lithium lanthanum zirconium oxide doped with at least one metal element.

13. The method for producing oxide ceramic particles coated with an amineralized functional group according to claim 1, characterized in that, before performing the mixing and polishing of step A, the size of each of the first LLZO particles is in the range of 2 μm to 10 μm and exhibits an irregular three-dimensional shape.

14. The weight ratio of the total weight of the multiple first LLZO particles to the methanol is in the range of 0.8 to 1.2:

4. In step B, the weight ratio of the tris(hydroxymethyl)aminomethane to the tris(hydroxymethyl)aminomethane hydrochloride is 8:

2. In step C, the weight ratio of the total weight of the plurality of first LLZO particles, the total weight of the tris(hydroxymethyl)aminomethane and the tris(hydroxymethyl)aminomethane hydrochloride, and the weight of the dopamine hydrochloride is in the range of 1:0.8 to 1:2.2 to 2.

4. The method for producing oxide ceramic particles coated with an aminated functional group according to claim 1, characterized in that the thickness of the dopamine layer is in the range of 1 nm to 10 nm.

15. In step A, the first rotational speed of the wet mixer is 2200 rpm ± 20%, the particle size of the zirconium beads is in the range of 0.7 mm to 0.9 mm, the filling rate of the zirconium beads is in the range of 70% to 90%, the polishing time is in the range of 1 hour to 1.5 hours, and the operating temperature is 20°C ± 4°C. In step B, the second rotational speed of the wet mixer is 2400 rpm ± 20%, the polishing time is 0.5 hours, and the operating temperature is 20°C ± 4°C. The method for producing oxide ceramic particles coated with amineralized functional groups according to claim 1, characterized in that, in step C, the third rotational speed of the wet mixer is 2000 rpm ± 20%, the polishing time is in the range of 0.5 hours to 1 hour, and the operating temperature is 20°C ± 4°C.

16. The method for producing oxide ceramic particles coated with amineralized functional groups according to claim 2, characterized in that, in step C, the third rotational speed of the wet mixer is 2000 rpm ± 20%, and after the CTAB surfactant is added, the wet mixer continuously performs mixing and polishing for 10 to 30 minutes.

17. The method for producing oxide ceramic particles coated with amineralized functional groups according to claim 3, characterized in that, in step C, the third rotational speed of the wet mixer is 2000 rpm ± 20%, the wet mixer continuously performs polishing and mixing for 0.5 hours after the alcohol-based solution is added, and the operating temperature is 20°C ± 4°C.

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