KR101272042B1 - 리튬 망간 복합 산화물 및 이의 제조 방법 - Google Patents
리튬 망간 복합 산화물 및 이의 제조 방법 Download PDFInfo
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- KR101272042B1 KR101272042B1 KR1020100110166A KR20100110166A KR101272042B1 KR 101272042 B1 KR101272042 B1 KR 101272042B1 KR 1020100110166 A KR1020100110166 A KR 1020100110166A KR 20100110166 A KR20100110166 A KR 20100110166A KR 101272042 B1 KR101272042 B1 KR 101272042B1
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- 239000011572 manganese Substances 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims description 10
- 229910052748 manganese Inorganic materials 0.000 title claims description 9
- 150000002500 ions Chemical class 0.000 claims abstract description 31
- 239000002131 composite material Substances 0.000 claims abstract description 25
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001694 spray drying Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 238000001238 wet grinding Methods 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 15
- 239000011268 mixed slurry Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002243 precursor Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 24
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 10
- 239000007774 positive electrode material Substances 0.000 description 9
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 8
- 238000000804 electron spin resonance spectroscopy Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 239000006182 cathode active material Substances 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910003005 LiNiO2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011802 pulverized particle Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
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- C01G45/1242—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (Mn2O4)-, e.g. LiMn2O4 or Li(MxMn2-x)O4
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- 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
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Abstract
Description
도 2는 XPS 를 이용한 Mn2P 스펙트럼 결과이다.
도 3은 실시예 1 내지 4 에서 제조된 양극활물질과 비교예의 양극활물질을 사용한 전지에서의 수명특성을 나타낸 도이다.
Mn3+(%) | Mn4+(%) | A | |
비교예 1 | 99.99 | 0.01 | 0.01 |
비교예 2 | 84.52 | 15.48 | 15.48 |
비교예 3 | 51.20 | 48.80 | 48.80 |
실시예 1 | 0.02 | 99.98 | 99.98 |
비교예 4 | 9.31 | 90.69 | 90.69 |
Claims (8)
- 하기 화학식 1로 표시되고, Mn 이 3+, 4+의 산화수를 가지며, 하기 [관계식 1]로 정의되는 표면의 Mn3+ 이온 존재량과 Mn4+ 이온 존재량의 비 A 값이 95 내지 100 인 것을 특징으로 하는 리튬 망간 복합 산화물.
[화학식 1]
Li1+aMn2-xMxO4
(상기 식에서, a 는 0 내지 0.2 이고, x 는 0 내지 0.4 이며, M은 Al, Mg, Zr, Cu, Ni, Sn, Sr, Zn, Si 및 이들의 혼합으로 이루어진 군에서 선택되는 것임).
[관계식 1]
A = { Mn4+ 존재량 /(Mn 3+ 이온 존재량 + Mn 4+ 이온 존재량) }× 100
- 제1항에 의한 상기 리튬 망간 복합 산화물을 포함하는 전기 화학 소자.
- 제 2항에 있어서,
상기 전기 화학 소자는 리튬 이차 전지 또는 하이브리드 커패시터인 것인 제1항의 상기 리튬 망간 복합 산화물을 포함하는 전기 화학 소자.
- (a) 리튬원, 망간원 및 금속원을 투입하는 단계;
(b) 상기 리튬원, 망간원 및 금속원을 습식 밀링하여 혼합 슬러리를 제조하는 단계;
(c) 상기 (b) 단계의 혼합 슬러리를 분무 건조하여 전구체 입자를 생성하는 단계; 및
(d) 상기 (c) 단계의 전구체를 열처리하는 단계를 포함하는 것을 특징으로 하는 하기 화학식 1로 표시되고, Mn 이 3+, 4+의 산화수를 가지며, 하기 [관계식 1]로 정의되는 표면의 Mn3+ 이온 존재량과 Mn4+ 이온 존재량의 비 A 값이 95 내지 100 인 것을 특징으로 하는 리튬 망간 복합 산화물의 제조 방법.
[화학식 1]
Li1+aMn2-xMxO4
(상기 식에서, a 는 0 내지 0.2 이고, x 는 0 내지 0.4 이며, M은 Al, Mg, Zr, Cu, Ni, Sn, Sr, Zn, Si 및 이들의 혼합으로 이루어진 군에서 선택되는 것임).
[관계식 1]
A = { Mn4+ 존재량 /(Mn 3+ 이온 존재량 + Mn 4+ 이온 존재량) }× 100
- 제 4항에 있어서,
상기 (b) 단계의 혼합 슬러리는 입자의 직경이 0.3 μm 이하, 점도는 500 cp 이하인 것을 특징으로 하는 화학식 1로 표시되는 리튬 망간 복합 산화물의 제조 방법.
- 제 4 항에 있어서,
상기 (b) 단계의 습식 분쇄는 3000 내지 4000 rpm의 교반 속도에서, 30 내지 60분간 교반하는 것을 특징으로 하는 리튬 망간 복합 산화물의 제조 방법.
- 제4항에 있어서,
상기 (c) 단계의 분무 건조는 공압식 분무 형태로 1 내지 5 bar의 압력 조건에서 수행하는 것인 리튬 망간 복합 산화물의 제조 방법.
- 제 4항에 있어서,
상기 (d)단계의 열처리는 1℃/min 내지 5℃/min의 승온 속도로, 700 내지 1000℃의 온도로 승온 후, 1 내지 10시간 동안, 1 내지 10 L/min의 속도로 공기를 주입하는 조건 하에서 수행하는 것인 리튬 망간 복합 산화물의 제조 방법.
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CN201180053613.6A CN103328388B (zh) | 2010-11-08 | 2011-11-07 | 锂锰复合氧化物及其制备方法 |
JP2013537618A JP2014502245A (ja) | 2010-11-08 | 2011-11-07 | リチウムマンガン複合酸化物及びその製造方法 |
EP11840599.2A EP2639202A4 (en) | 2010-11-08 | 2011-11-07 | LITHIUM MANGANIC OXIDE AND METHOD FOR THE PRODUCTION THEREOF |
CA2821045A CA2821045C (en) | 2010-11-08 | 2011-11-07 | Lithium manganese composite oxide and method for preparing same |
US13/883,653 US9171653B2 (en) | 2010-11-08 | 2011-11-07 | Lithium manganese composite oxide and method for preparing same |
PCT/KR2011/008407 WO2012064053A2 (ko) | 2010-11-08 | 2011-11-07 | 리튬 망간 복합 산화물 및 이의 제조 방법 |
JP2016077330A JP2016185903A (ja) | 2010-11-08 | 2016-04-07 | リチウムマンガン複合酸化物の製造方法 |
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KR101510179B1 (ko) * | 2012-04-26 | 2015-04-08 | 주식회사 포스코이에스엠 | 리튬 망간 복합 산화물의 제조 방법, 그 제조 방법에 의하여 제조된 리튬 망간 복합 산화물, 및 이를 포함하는 리튬 이온 이차 전지 |
US9905850B2 (en) | 2013-07-26 | 2018-02-27 | Lg Chem, Ltd. | Polycrystalline lithium manganese oxide particles, preparation method thereof, and cathode active material including the same |
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EP2639202A2 (en) | 2013-09-18 |
US9171653B2 (en) | 2015-10-27 |
JP2016185903A (ja) | 2016-10-27 |
WO2012064053A2 (ko) | 2012-05-18 |
US20130327978A1 (en) | 2013-12-12 |
CN103328388A (zh) | 2013-09-25 |
JP2014502245A (ja) | 2014-01-30 |
CA2821045C (en) | 2015-05-19 |
WO2012064053A3 (ko) | 2012-09-13 |
KR20120089382A (ko) | 2012-08-10 |
CN103328388B (zh) | 2016-08-03 |
EP2639202A4 (en) | 2016-07-13 |
CA2821045A1 (en) | 2012-05-18 |
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