WO2016011962A1 - 锂镍锰氧正极材料的制法 - Google Patents

锂镍锰氧正极材料的制法 Download PDF

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Publication number
WO2016011962A1
WO2016011962A1 PCT/CN2015/084908 CN2015084908W WO2016011962A1 WO 2016011962 A1 WO2016011962 A1 WO 2016011962A1 CN 2015084908 W CN2015084908 W CN 2015084908W WO 2016011962 A1 WO2016011962 A1 WO 2016011962A1
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Prior art keywords
manganese oxide
positive electrode
precursor
lithium nickel
nickel manganese
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Ceased
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PCT/CN2015/084908
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English (en)
French (fr)
Chinese (zh)
Inventor
黄俊铭
林翔斌
谢瀚纬
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Advanced Lithium Electrochemistry Co Ltd
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Advanced Lithium Electrochemistry Co Ltd
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Priority to EP15825046.4A priority Critical patent/EP3174142A4/en
Priority to CN201580037867.7A priority patent/CN106575759A/zh
Priority to JP2017503913A priority patent/JP2017522702A/ja
Priority to US15/328,575 priority patent/US20170214044A1/en
Priority to CA2956380A priority patent/CA2956380A1/en
Priority to KR1020177003145A priority patent/KR20170030559A/ko
Publication of WO2016011962A1 publication Critical patent/WO2016011962A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
    • C01G53/52—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (Mn2O4)2-, e.g. Li2(NixMn2-x)O4 or Li2(MyNixMn2-x-y)O4
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/40—Complex oxides containing nickel and at least one other metal element
    • C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
    • C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
    • C01G53/54—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (Mn2O4)-, e.g. Li(NixMn2-x)O4 or Li(MyNixMn2-x-y)O4
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • 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 present disclosure relates to a method for preparing a lithium nickel manganese oxide cathode material, and more particularly to a method for sintering a cathode material precursor to a specific span (Span) and then sintering to form a lithium nickel manganese oxide cathode material.
  • a cathode material precursor to a specific span (Span) and then sintering to form a lithium nickel manganese oxide cathode material.
  • portable energy sources are widely used in reusable secondary batteries, and in the existing secondary battery types, lithium ion secondary batteries have high volumetric specific capacitance, no pollution, and good cycle charge and discharge characteristics, and The advantages of no memory effect are more potential.
  • the spinel phase lithium manganese oxide extension compound, lithium nickel manganese oxide cathode material has the advantages of high safety and long cycle life.
  • lithium nickel manganese oxide materials have been extensively studied due to their high operating voltage platform of 4.7V.
  • the solid-state reaction method is often used to produce lithium nickel manganese oxide cathode materials.
  • the solid state reaction method is a powder manufacturing technology with simple process, cheap raw materials and easy mass production. The principle is mainly to make the raw materials in the heat treatment process, ions diffuse to form the products to be synthesized, and are often applied to structural ceramics and electronic ceramics.
  • undesired second phase impurities are often generated, which may cause disadvantages such as decrease in electrical properties of the produced positive electrode material.
  • the lithium nickel manganese oxide cathode material will have a second crystal structure.
  • the problem of non-pure matter is an urgent problem to be solved in the field.
  • the main object of the present disclosure is to provide a method for preparing a lithium nickel manganese oxide cathode material, which solves the problem that the crystal structure of the lithium nickel manganese oxide cathode material in the prior art causes a decrease in electrical properties of the second phase impurity generated during sintering. The problem.
  • Another object of the present disclosure is to provide a method for preparing a lithium nickel manganese oxide cathode material, which can effectively reduce the precursor of the cathode material during sintering by adjusting the grinding time of the precursor material and controlling the particle size of the precursor material of the cathode material.
  • the second phase is an impurity, thereby enhancing the electrical properties.
  • a broader embodiment of the present invention provides a method for preparing a lithium nickel manganese oxide positive electrode material, comprising the steps of: (a) providing a precursor material, the precursor material comprising a lithium-containing compound, and containing nickel a compound and a manganese-containing compound; (b) forming a positive electrode material precursor by mixing and grinding a lithium-containing compound, a nickel-containing compound, and a manganese-containing compound to a specific span (Span) or a specific maximum particle diameter (D 90 ) Wherein the specific span (Span) is greater than or equal to 1.0 and less than or equal to 2.0, the specific 90% of the particles have a maximum diameter value greater than or equal to 0.3 microns and less than or equal to 0.4 microns; and (c) heat treating the positive electrode material precursor, To form a lithium nickel manganese oxide cathode material.
  • another broad embodiment of the present disclosure provides a method for preparing a lithium nickel manganese oxide positive electrode material, comprising the steps of: (a) providing a precursor material; (b) grinding by a solid solution grinding technique. The precursor material is formed for a specific time to form a positive electrode material precursor; and (c) the cathode material precursor is heat-treated to obtain a lithium nickel manganese oxide cathode material; wherein the precursor material is reduced in heat treatment by grinding the precursor material The second phase impurity produced during the process.
  • FIG. 1 is a flow chart of a method for preparing a lithium nickel manganese oxide cathode material according to a preferred embodiment of the present disclosure.
  • FIG. 2 is a flow chart of a method for preparing a lithium nickel manganese oxide cathode material according to another preferred embodiment of the present disclosure.
  • FIG. 3 is a particle size distribution diagram of a precursor of a positive electrode material of the present disclosure under different grinding time conditions.
  • FIG. 4 is a schematic view showing particle stacking of a precursor of a positive electrode material of the present disclosure under different grinding time conditions.
  • FIG. 5 is an X-ray diffraction analysis diagram of a lithium nickel manganese oxide positive electrode material formed by sintering of a precursor of a positive electrode material of the present disclosure under a grinding time of 6 hours.
  • FIG. 6 is an X-ray diffraction analysis diagram of a lithium nickel manganese oxide positive electrode material formed by sintering of a precursor of a positive electrode material of the present disclosure under a grinding time of 9 hours.
  • FIG. 7 is an X-ray diffraction analysis diagram of a lithium nickel manganese oxide positive electrode material formed by sintering of a precursor of a positive electrode material of the present disclosure under a grinding time of 24 hours.
  • FIG. 8 is a schematic view showing the characteristic peak intensity of the second phase impurity under the conditions of different polishing times of the precursor of the positive electrode material of the present disclosure.
  • FIG. 9 is an electrical test chart of a lithium nickel manganese oxide cathode material formed by sintering a cathode material precursor of the present disclosure under different grinding time conditions.
  • FIG. 1 is a flow chart of a method for preparing a lithium nickel manganese oxide cathode material according to a preferred embodiment of the present disclosure.
  • the preparation method of the lithium nickel manganese oxide cathode material of the present disclosure comprises the following steps: First, as shown in step S100, a precursor material is provided, and the precursor material comprises a lithium-containing compound, a nickel-containing compound, and a manganese-containing compound.
  • the lithium-containing compound may be, but is not limited to, lithium carbonate or lithium hydroxide
  • the manganese-containing compound may be, but is not limited to, trimanganese tetraoxide or manganese carbonate
  • the nickel-containing compound may be but not Limited to nickel oxide, nickel acetate or nickel carbonate.
  • step S200 containing a lithium compound, a nickel compound and a manganese-containing compound is mixed and ground to a specific diameter distance (of Span) or after a specific maximum particle diameter ninety value (D 90), forming a positive electrode material precursor,
  • the specific diameter is greater than or equal to 1.0 and less than or equal to 2.0
  • the specific 90% particle maximum diameter value is greater than or equal to 0.3 micrometers and less than or equal to 0.4 micrometers.
  • the positive electrode material precursor is heat treated to form a lithium nickel manganese oxide positive electrode material.
  • the chemical formula of the lithium nickel manganese oxide cathode material referred to in the present embodiment is Li 1.0 Ni 0.5 Mn 1.5 O 4 , but is not limited thereto.
  • FIG. 2 is a flow chart of a method for preparing a lithium nickel manganese oxide cathode material according to another preferred embodiment of the present disclosure.
  • the method for producing a lithium nickel manganese oxide cathode material of the present disclosure comprises the following steps: First, as shown in step S1000, a precursor material is provided.
  • the raw material of the precursor may include a lithium-containing compound, a nickel-containing compound, a manganese-containing compound, and the like.
  • the precursor material is ground by a solid solution polishing technique for a specific time to form a positive electrode material precursor.
  • the specific time here is less than or equal to 24 hours and greater than or equal to 6 hours.
  • the positive electrode material precursor is heat-treated to obtain a lithium nickel manganese oxide positive electrode material, wherein by grinding the precursor material, the second phase impurity generated in the heat treatment process of the positive electrode material precursor can be reduced. Things.
  • the lithium nickel manganese oxide positive electrode material referred to in this embodiment has a chemical formula of Li 1.0 Ni 0.5 Mn 1.5 O 4 , and the second phase impurity is Li 0.4 Ni 1.6 O 2 , but is not limited thereto.
  • span (Span) and the meaning it represents are described below.
  • the algorithm of the span is the maximum diameter of the 90% particle (D 90 ) minus the maximum diameter of the particle (D 10 ), divided by the median.
  • a 0.8 mm diameter zirconium dioxide (ZrO 2 ) ball was placed in a ball mill barrel as a grinding ball and 1.7 liters of pure water was added, followed by 118.75 g of lithium carbonate (Li 2 CO 3 ) as the first material.
  • Nickel oxide (NiO) of 112.27 is used as the second material and 522 grams of manganese carbonate (MnCO 3 ) is used as the third material to form the precursor material, and the precursor material is ground for 6 hours to obtain the precursor of the positive electrode material.
  • the precursor of the positive electrode material is first dried, placed in a ceramic crucible, and calcined at 700-900 ° C for 10 hours in an air atmosphere. After calcination, a lithium nickel manganese oxide positive electrode material is obtained, and the chemical formula is Li 1.0 Ni 0.5 Mn 1.5. O 4 .
  • Example 1 the time for polishing the precursor material was adjusted to 9 hours, and the rest was the same as in Example 1, and the details are not described herein.
  • Example 1 the time for polishing the precursor material was adjusted to 24 hours, and the rest was the same as in Example 1, and details are not described herein again.
  • lithium carbonate (Li 2 CO 3 ) as the first material in Example 1 was replaced with lithium hydroxide (LiOH) 71.82 g, and the rest was the same as in Example 1, and details are not described herein.
  • the first material of the present disclosure may be of various sources and is not limited to lithium carbonate and lithium hydroxide, as long as the material containing lithium is the first material of the present disclosure.
  • the nickel oxide (NiO) as the second material in Example 1 is replaced with 179.85 g of nickel carbonate (NiCO 3 ), and the rest is the same as that in Embodiment 1, and will not be further described herein.
  • the disclosed second material may be of various sources, and is not limited to nickel oxide or nickel carbonate, and may be nickel acetate or the like as long as the material containing nickel can be used as the second material of the present disclosure.
  • the manganese carbonate (MnCO 3 ) as the third material in Example 1 was changed to 346.68 g of trimanganese tetraoxide (Mn 3 O 4 ), and the rest was the same as that in Example 1, and details are not described herein again.
  • the third material of the present disclosure may be of various sources and is not limited to manganese carbonate and trimanganese tetraoxide, as long as the material containing manganese is the third material of the present disclosure.
  • Li 1.0 Ni 0.5 Mn 1.5 O 4 lithium nickel manganese oxide positive electrode material powder obtained in the above three examples was mixed with carbon black (Super P) and 4% binder (PVDF1700+NMP), and then electrically tested. The detailed process is described as follows:
  • the battery is assembled.
  • the dried pole piece is made into a circular plate having a diameter of 1.3 cm as a positive electrode, and lithium metal is used as a negative electrode to form a button type battery 2032, wherein the electrolyte is at a concentration of 1 M.
  • LiPF 6 mixed with ethylene carbonate (EC) and dimethyl carbonate (DMC) having a volume ratio of 1:1, for example: LIPATE-EDEC/PF1, Tomiyama Pure Chemical Industry, Japan.
  • the charging and discharging machine is used for electrical testing of 0.1 C charge and discharge for 2 cycles and 2 C charge and discharge for 2 cycles.
  • the test voltage range is 3.2-4.9 volts, and the test results are shown in Fig. 7. .
  • FIG. 3 is a particle size distribution diagram of the precursor of the positive electrode material according to the disclosure under different grinding time conditions
  • FIG. 4 is a schematic diagram of particle packing of the precursor material of the positive electrode material under different grinding time conditions.
  • the difference between Examples 1, 2, and 3 is that the polishing time of the precursor materials is different, and the particle deposition conditions caused by different polishing times are also different. As can be seen from Fig. 3, the precursor materials are formed by grinding for 6 hours.
  • the precursor material precursor particle diameter (D 50 ) value is 0.50 ⁇ m; the precursor material raw material has a median diameter value of 0.39 ⁇ m formed by grinding for 9 hours; and the precursor material is ground 24
  • the median diameter value of the positive electrode material precursor formed in the case of an hour was 0.25 ⁇ m. It can be seen that the longer the polishing time of the precursor material is, the smaller the particle size of most of the powder particles in the positive electrode material precursor is, so the packing of the particles is closer, that is, as shown in FIG. .
  • the theoretical value of the capacity of the lithium nickel manganese oxide cathode material is about 146-147 milliamperes per hour per gram, and after complicated experiments, the median diameter of the current precursor material is between 0.1 and 0.2 ⁇ m.
  • the lithium nickel manganese oxide cathode material obtained after sintering has a capacitance value of 0.1 C under charge and discharge cycles. There is at least 130 milliamps per hour per gram of performance.
  • FIG. 5 is an X-ray diffraction analysis diagram of a lithium nickel manganese oxide cathode material formed by sintering a positive electrode material precursor under the condition of a grinding time of 6 hours
  • FIG. 6 is a disclosure.
  • FIG. 7 is a precursor of the positive electrode material of the present disclosure under the condition of a grinding time of 24 hours.
  • FIG. 8 is a schematic view showing the characteristic peak intensity of the second phase impurity under the conditions of different polishing times of the precursor of the positive electrode material of the present disclosure.
  • the arrows in Figure 5-7 point to 2theta( ⁇ ) of 37.58° and 43.66°, respectively. It is obvious that there are two characteristic peaks, and the two characteristic peaks are the second phase impurities produced after calcination. Characteristic peak of Li 0.4 Ni 1.6 O 2 . As shown in Fig. 6, it is apparent that as the grinding time becomes longer (from 6 hours to 24 hours), the characteristic peak intensity of 2theta( ⁇ ) of 37.58° is gradually decreased, and 2theta( ⁇ ) is 43.66.
  • the characteristic peak intensity of ° also decreases as the grinding time increases, and it can be clearly seen from Fig. 5-7 that the characteristic peak intensity decreases. Therefore, it can be inferred that by increasing the grinding time, the second phase impurity can be reduced after calcination. Li 0.4 Ni 1.6 O 2 was produced.
  • FIG. 9 is an electrical test chart of a lithium nickel manganese oxide cathode material formed by sintering a positive electrode material precursor under different grinding time conditions.
  • the longer the polishing time the greater the contribution of the 4.7V (Ni 2+ ⁇ Ni 4+ ) voltage platform in the 0.1C discharge curve, relatively speaking, 4.1V (Mn 3+ ⁇ Mn 4+
  • 4.1V Mn 3+ ⁇ Mn 4+
  • the particle size and span value of the precursor of the positive electrode material will be smaller, so that the mixing of the precursor material of the positive electrode material is more uniform. It helps to dissolve the nickel ions in the sintering process, and the contribution of the manganese voltage platform is reduced, so that the electrical properties are improved.
  • the lithium nickel manganese oxide cathode material of the present disclosure can effectively reduce the second generation of the cathode material precursor during sintering by adjusting the grinding time of the precursor material and controlling the particle size of the precursor material of the cathode material.
  • the phase is not pure, thereby improving the electrical properties. Therefore, the method for preparing the lithium nickel manganese oxide cathode material provided by the invention has great industrial utilization value, and is applied according to law.

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PCT/CN2015/084908 2014-07-25 2015-07-23 锂镍锰氧正极材料的制法 Ceased WO2016011962A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP15825046.4A EP3174142A4 (en) 2014-07-25 2015-07-23 Preparation method of lithium nickel manganese oxide anode material
CN201580037867.7A CN106575759A (zh) 2014-07-25 2015-07-23 锂镍锰氧正极材料的制法
JP2017503913A JP2017522702A (ja) 2014-07-25 2015-07-23 リチウムニッケルマンガン酸化物カソード材料を調製する方法
US15/328,575 US20170214044A1 (en) 2014-07-25 2015-07-23 Method of preparing lithium nickel manganese oxide cathode material
CA2956380A CA2956380A1 (en) 2014-07-25 2015-07-23 Method of preparing lithium nickel manganese oxide cathode material
KR1020177003145A KR20170030559A (ko) 2014-07-25 2015-07-23 리튬 니켈 망간 옥사이드 양극 물질 제조 방법

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US201462029117P 2014-07-25 2014-07-25
US62/029,117 2014-07-25

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EP (1) EP3174142A4 (enExample)
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CN (1) CN106575759A (enExample)
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US20220380227A1 (en) * 2019-11-07 2022-12-01 Johnson Matthey Public Limited Company Cathode material and process
CN115917792A (zh) * 2020-04-21 2023-04-04 拓普材料有限公司 含有尖晶石复合固溶体氧化物的正极活性材料及其制备方法和含有该正极活性材料的锂二次电池

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US20230411694A1 (en) * 2020-11-30 2023-12-21 Panasonic Intellectual Property Management Co., Ltd. Non-aqueous electrolyte secondary battery
US20240145700A1 (en) * 2021-03-18 2024-05-02 Panasonic Intellectual Property Management Co., Ltd. Non-aqueous electrolyte secondary battery
JP7838884B2 (ja) * 2022-09-15 2026-04-01 エルジー・ケム・リミテッド 正極活物質前駆体の製造方法
EP4774773A2 (en) * 2023-09-08 2026-07-15 Li Industries, Inc. Systems and methods for combined electrode material synthesis

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KR20170030559A (ko) 2017-03-17
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