KR101623719B1 - 리튬 이차전지용 양극 활물질의 제조방법 - Google Patents
리튬 이차전지용 양극 활물질의 제조방법 Download PDFInfo
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- KR101623719B1 KR101623719B1 KR1020140097918A KR20140097918A KR101623719B1 KR 101623719 B1 KR101623719 B1 KR 101623719B1 KR 1020140097918 A KR1020140097918 A KR 1020140097918A KR 20140097918 A KR20140097918 A KR 20140097918A KR 101623719 B1 KR101623719 B1 KR 101623719B1
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- 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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- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1228—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO2)-, e.g. LiMnO2 or Li(MxMn1-x)O2
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- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/125—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO3)n-, e.g. CaMnO3
- C01G45/1257—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO3)n-, e.g. CaMnO3 containing lithium, e.g. Li2MnO3 or Li2(MxMn1-x)O3
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Complex oxides containing cobalt and at least one other metal element
- C01G51/42—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2
- C01G51/44—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2 containing manganese
- C01G51/50—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2 containing manganese of the type (MnO2)n-, e.g. Li(CoxMn1-x)O2 or Li(MyCoxMn1-x-y)O2
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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
- 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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- 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
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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
- H01M4/52—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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- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/582—Halogenides
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- C01P2002/52—Solid solutions containing elements as dopants
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/052—Li-accumulators
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- Materials Engineering (AREA)
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- Battery Electrode And Active Subsutance (AREA)
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
(1-x)LiM’O2-yAy -xLi2MnO3-y’Ay’(1)
상기 식에서,
M’은 MnaMb이고;
M은 Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn 및 2주기 전이금속들로 이루어진 군에서 선택되는 하나 이상이며;
A는 PO4, BO3, CO3, F 및 NO3의 음이온으로 이루어진 군에서 선택되는 하나 이상이고,
0<x<1; 0<y≤0.02; 0<y’≤0.02; 0.5≤a≤1.0; 0≤b≤0.5; a + b = 1 이다.
Description
가스 발생량 (㎕) | |
실시예 1 | 10471 |
실시예 2 | 10415 |
실시예 3 | 10350 |
비교예 1 | 12850 |
비교예 2 | 12650 |
비교예 3 | 11030 |
전지 특성 | ||
0.5 C 용량 (mAh) | 2C/1C Rate | |
실시예 1 | 26 | 96.0% |
비교예 1 | 30 | 95.4% |
Claims (12)
- 하기 화학식 (1)로 표현되는 화합물 중에서 선택된 하나 이상의 리튬 전이금속 산화물의 전-활성화(pre-activation) 과정; 및
전-활성화된 리튬 전이금속 산화물의 표면 개질 과정;
을 포함하고,
상기 리튬 전이금속 산화물의 전-활성화 과정은, 리튬 전이금속 산화물을 리튬 흡착제와 반응시키는 화학적 탈리튬화(delithiation) 과정 및 고온 탈리튬화 과정을 포함하고 있으며,
상기 표면 개질 과정은 기계적 밀링법으로 수행하는 것을 특징으로 하는 리튬 이차전지용 양극 활물질의 제조방법:
(1-x)LiM'O2 -xLi2MnO3 (1)
상기 식에서,
M'은 MnaMb이고;
M은 Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn 및 2주기 전이금속들로 이루어진 군에서 선택되는 하나 이상이며;
0<x<1; 0.5≤a≤1.0; 0≤b≤0.5; a + b = 1 이다. - 삭제
- 제 1 항에 있어서, 상기 화학적 탈리튬화 과정은 BF4염, 또는 암모늄염으로 이루어진 리튬 흡착제와 반응시키는 것을 특징으로 하는 제조방법.
- 삭제
- 제 1 항에 있어서, 상기 고온 탈리튬화 과정은, 상기 리튬 전이금속 산화물을 250 ℃ 이상의 온도에서 열처리하는 과정을 포함하는 것을 특징으로 하는 제조방법.
- 제 5 항에 있어서, 상기 고온 탈리튬화 과정은, 상기 리튬 전이금속 산화물을 300 ℃ 이상의 온도에서 열처리하는 과정을 포함하는 것을 특징으로 하는 제조방법.
- 제 6 항에 있어서, 상기 고온 탈리튬화 과정은, 상기 리튬 전이금속 산화물을 400 ℃ 이상의 온도에서 열처리하는 과정을 포함하는 것을 특징으로 하는 제조방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20130090956 | 2013-07-31 | ||
KR1020130090956 | 2013-07-31 |
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KR20150015412A KR20150015412A (ko) | 2015-02-10 |
KR101623719B1 true KR101623719B1 (ko) | 2016-05-24 |
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KR1020140097918A Active KR101623719B1 (ko) | 2013-07-31 | 2014-07-31 | 리튬 이차전지용 양극 활물질의 제조방법 |
Country Status (5)
Country | Link |
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US (1) | US10008720B2 (ko) |
JP (1) | JP6204581B2 (ko) |
KR (1) | KR101623719B1 (ko) |
CN (1) | CN105264695B (ko) |
WO (1) | WO2015016621A1 (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015037734A1 (ja) * | 2013-09-13 | 2015-03-19 | Koyanaka Hideki | トリチウム吸着材、水中からのトリチウムの分離方法及びトリチウム吸着材の再生方法 |
KR20160112766A (ko) * | 2015-03-20 | 2016-09-28 | 주식회사 엘지화학 | 고전압 리튬 이차전지용 양극 활물질 및 이를 포함하는 리튬 이차전지 |
CN107394199A (zh) * | 2017-07-20 | 2017-11-24 | 北京理工大学 | 一种高镍三元正极材料存放后电化学性能的恢复方法 |
KR102617870B1 (ko) | 2018-07-25 | 2023-12-22 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 리튬 금속의 전처리 방법 |
KR102530216B1 (ko) * | 2020-06-05 | 2023-05-09 | 포항공과대학교 산학협력단 | 리튬 이차전지용 양극 활물질의 전기화학적 특성을 활성화시키는 방법 및 리튬 이차전지용 양극 활물질 |
Citations (1)
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JP2003297360A (ja) * | 2002-04-05 | 2003-10-17 | Merck Ltd | 非水電解質二次電池用正極活物質及びその製造方法 |
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KR100528455B1 (ko) | 2004-03-19 | 2005-11-15 | 한국과학기술연구원 | 고성능 리튬이차전지 양극 활성물질 제조방법 및 상기방법을 이용하여 제조한 양극 활성 물질을 사용한리튬이차전지 |
JP2006228704A (ja) * | 2005-01-18 | 2006-08-31 | Nissan Motor Co Ltd | 二次電池用電極及びこれを用いた非水電解液二次電池 |
WO2008039808A2 (en) * | 2006-09-25 | 2008-04-03 | Board Of Regents, The University Of Texas System | Cation-substituted spinel oxide and oxyfluoride cathodes for lithium ion batteries |
US8835027B2 (en) * | 2007-09-21 | 2014-09-16 | Uchicago Argonne, Llc | Positive electrodes for lithium batteries |
TWI502793B (zh) * | 2008-09-10 | 2015-10-01 | Toda Kogyo Corp | Li-Ni composite oxide particle powder for nonaqueous electrolyte storage battery, method for producing the same, and nonaqueous electrolyte storage battery |
KR20110076955A (ko) * | 2008-09-30 | 2011-07-06 | 엔비아 시스템즈 인코포레이티드 | 비용량이 높은 불소 도핑된 리튬 풍부 금속 산화물 양극 배터리 재료 및 상당하는 배터리 |
KR101171734B1 (ko) | 2009-04-01 | 2012-08-07 | 주식회사 엘지화학 | 리튬 이차전지용 양극 활물질 |
JP5791877B2 (ja) | 2009-09-30 | 2015-10-07 | 三洋電機株式会社 | 正極活物質、この正極活物質の製造方法、及び、正極活物質を用いた非水電解質二次電池 |
JP2011134670A (ja) * | 2009-12-25 | 2011-07-07 | Toyota Motor Corp | リチウム二次電池用正極活物質 |
KR101190185B1 (ko) * | 2010-02-24 | 2012-10-15 | 주식회사 엘지화학 | 고용량의 양극활물질 및 이를 포함하는 리튬 이차전지 |
JP5733550B2 (ja) | 2010-02-26 | 2015-06-10 | トヨタ自動車株式会社 | リチウムイオン二次電池 |
KR101369951B1 (ko) | 2011-02-21 | 2014-03-06 | 주식회사 엘지화학 | 출력 특성이 향상된 혼합된 양극활물질 및 이를 포함하는 리튬 이차전지 |
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- 2014-07-31 KR KR1020140097918A patent/KR101623719B1/ko active Active
- 2014-07-31 WO PCT/KR2014/007021 patent/WO2015016621A1/ko active Application Filing
- 2014-07-31 JP JP2016518284A patent/JP6204581B2/ja active Active
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JP2003297360A (ja) * | 2002-04-05 | 2003-10-17 | Merck Ltd | 非水電解質二次電池用正極活物質及びその製造方法 |
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JP2016520983A (ja) | 2016-07-14 |
JP6204581B2 (ja) | 2017-09-27 |
CN105264695A (zh) | 2016-01-20 |
WO2015016621A1 (ko) | 2015-02-05 |
US20160133931A1 (en) | 2016-05-12 |
KR20150015412A (ko) | 2015-02-10 |
US10008720B2 (en) | 2018-06-26 |
CN105264695B (zh) | 2018-10-02 |
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