KR20200090362A - 이차전지용 양극 활물질의 제조방법 - Google Patents
이차전지용 양극 활물질의 제조방법 Download PDFInfo
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- KR20200090362A KR20200090362A KR1020190007296A KR20190007296A KR20200090362A KR 20200090362 A KR20200090362 A KR 20200090362A KR 1020190007296 A KR1020190007296 A KR 1020190007296A KR 20190007296 A KR20190007296 A KR 20190007296A KR 20200090362 A KR20200090362 A KR 20200090362A
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- 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
- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
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- 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
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- 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
- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
- C01G53/502—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2 containing lithium and cobalt
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- 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
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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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
- H01M4/48—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
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- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
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- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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- 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
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- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
| 수분 함량 (ppm) |
초기 방전 용량 (mAh/g) |
용량 유지율(%) (@30회 cycle) | 초기 저항(Ω) | 저항 증가율(%) (@30회 cycle) | |
| 실시예1 | 400 | 219.6 | 94.9 | 22.3 | 206.1 |
| 실시예2 | 500 | 218.6 | 95.2 | 22.6 | 204.9 |
| 실시예3 | 800 | 218.2 | 95.1 | 22.9 | 199.6 |
| 실시예4 | 400 | 219.5 | 94.8 | 22.6 | 206.4 |
| 비교예1 | 1100 | 215.6 | 92.2 | 27.1 | 230.6 |
| 비교예2 | 500 | 215.4 | 92.3 | 28.7 | 251.2 |
| 비교예3 | 1000 | 210.1 | 89.8 | 31.6 | 283.2 |
| 비교예4 | 1200 | 209.8 | 88.9 | 31.1 | 330.6 |
Claims (10)
- 전체 금속 중 니켈(Ni)을 60몰% 이상 함유한 양극 활물질 전구체를 마련하는 단계;
상기 양극 활물질 전구체와 리튬 원료소스를 혼합하고, 산화 분위기 하에서 1차 가소성하여 가소성물을 형성하는 단계; 및
상기 가소성물을 대기(Air) 분위기 하에서 2차 본소성하여 리튬 전이금속 산화물을 형성하는 단계;
를 포함하는 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 1차 가소성의 소성 온도는 400 내지 700℃인 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 2차 본소성의 소성 온도는 700 내지 1,000℃인 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 1차 가소성은 산소를 공급하면서 수행하는 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 1차 가소성은, 소성 온도 도달 후 3 내지 7시간 동안 수행하는 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 2차 본소성은 산소 공급을 중단한 후 수행하는 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 가소성물은 층상(layered) 구조 및 스피넬 유사(spinel-like) 구조를 포함하는 구조를 갖는 것인 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 양극 활물질 전구체는 니켈(Ni), 코발트(Co) 및 망간(Mn)을 포함하는 화합물인 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 양극 활물질 전구체는 전체 금속 중 니켈(Ni)을 80몰% 이상 함유한 것인 이차전지용 양극 활물질의 제조방법.
- 제1항에 있어서,
상기 리튬 전이금속 산화물은 하기 화학식 1로 표시되는 이차전지용 양극 활물질의 제조방법.
[화학식 1]
LipNi1 -(x1+y1+z1)Cox1Ma y1Mb z1O2 +δ
상기 식에서, Ma는 Mn 및 Al 중 적어도 하나 이상의 원소이며, Mb는 Al, Zr, Ti, Mg, Ta, Nb, Mo, Cr, Ba, Sr, W 및 Ca로 이루어진 군에서 선택된 적어도 하나 이상의 원소이며, 0.9≤p≤1.3, 0≤x1≤0.5, 0≤y1≤0.5, 0≤z1≤0.1, 0≤x1+y1+z1≤0.4, -0.1≤δ≤1이다.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190007296A KR102565910B1 (ko) | 2019-01-21 | 2019-01-21 | 이차전지용 양극 활물질의 제조방법 |
| JP2021540212A JP7225415B2 (ja) | 2019-01-21 | 2020-01-21 | 二次電池用正極活物質の製造方法 |
| US17/422,014 US12378133B2 (en) | 2019-01-21 | 2020-01-21 | Method of preparing positive electrode active material for secondary battery |
| CN202080009078.3A CN113302160A (zh) | 2019-01-21 | 2020-01-21 | 制备二次电池用正极活性材料的方法 |
| EP20745018.0A EP3892590B1 (en) | 2019-01-21 | 2020-01-21 | Method of preparing positive electrode active material for secondary battery |
| CN202510567055.9A CN120535026A (zh) | 2019-01-21 | 2020-01-21 | 制备二次电池用正极活性材料的方法和降低二次电池用高Ni正极活性材料的水分含量的方法 |
| PCT/KR2020/000996 WO2020153701A1 (ko) | 2019-01-21 | 2020-01-21 | 이차전지용 양극 활물질의 제조방법 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190007296A KR102565910B1 (ko) | 2019-01-21 | 2019-01-21 | 이차전지용 양극 활물질의 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20200090362A true KR20200090362A (ko) | 2020-07-29 |
| KR102565910B1 KR102565910B1 (ko) | 2023-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020190007296A Active KR102565910B1 (ko) | 2019-01-21 | 2019-01-21 | 이차전지용 양극 활물질의 제조방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12378133B2 (ko) |
| EP (1) | EP3892590B1 (ko) |
| JP (1) | JP7225415B2 (ko) |
| KR (1) | KR102565910B1 (ko) |
| CN (2) | CN120535026A (ko) |
| WO (1) | WO2020153701A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230083152A (ko) * | 2021-12-02 | 2023-06-09 | 주식회사 탑머티리얼 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102618005B1 (ko) * | 2020-08-18 | 2023-12-27 | 주식회사 엘지화학 | 양극 활물질의 제조 방법 |
| JP7531546B2 (ja) | 2022-05-26 | 2024-08-09 | プライムプラネットエナジー&ソリューションズ株式会社 | リチウムイオン二次電池の製造方法 |
| JP7749615B2 (ja) | 2023-03-30 | 2025-10-06 | プライムプラネットエナジー&ソリューションズ株式会社 | 正極活物質の製造方法 |
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- 2020-01-21 CN CN202510567055.9A patent/CN120535026A/zh active Pending
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| KR20230083152A (ko) * | 2021-12-02 | 2023-06-09 | 주식회사 탑머티리얼 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3892590B1 (en) | 2024-08-07 |
| CN113302160A (zh) | 2021-08-24 |
| WO2020153701A1 (ko) | 2020-07-30 |
| US12378133B2 (en) | 2025-08-05 |
| EP3892590A1 (en) | 2021-10-13 |
| KR102565910B1 (ko) | 2023-08-10 |
| JP7225415B2 (ja) | 2023-02-20 |
| JP2022517078A (ja) | 2022-03-04 |
| EP3892590A4 (en) | 2022-03-09 |
| CN120535026A (zh) | 2025-08-26 |
| US20220098054A1 (en) | 2022-03-31 |
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