KR101266752B1 - 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법 및 상기 스피넬 리튬 티타늄 옥사이드를 음극재로 이용하여 제조된 리튬이차전지 - Google Patents
표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법 및 상기 스피넬 리튬 티타늄 옥사이드를 음극재로 이용하여 제조된 리튬이차전지 Download PDFInfo
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- KR101266752B1 KR101266752B1 KR1020110022509A KR20110022509A KR101266752B1 KR 101266752 B1 KR101266752 B1 KR 101266752B1 KR 1020110022509 A KR1020110022509 A KR 1020110022509A KR 20110022509 A KR20110022509 A KR 20110022509A KR 101266752 B1 KR101266752 B1 KR 101266752B1
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- Prior art keywords
- titanium oxide
- lithium titanium
- spinel lithium
- slurry
- prepared
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- 229910052596 spinel Inorganic materials 0.000 title claims abstract description 77
- 239000011029 spinel Substances 0.000 title claims abstract description 77
- FDLZQPXZHIFURF-UHFFFAOYSA-N [O-2].[Ti+4].[Li+] Chemical compound [O-2].[Ti+4].[Li+] FDLZQPXZHIFURF-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000010405 anode material Substances 0.000 title 1
- 238000002360 preparation method Methods 0.000 title 1
- 239000010936 titanium Substances 0.000 claims abstract description 52
- 239000007773 negative electrode material Substances 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000011259 mixed solution Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 21
- 229910052698 phosphorus Inorganic materials 0.000 claims description 11
- 239000011574 phosphorus Substances 0.000 claims description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- RMZAYIKUYWXQPB-UHFFFAOYSA-N trioctylphosphane Chemical compound CCCCCCCCP(CCCCCCCC)CCCCCCCC RMZAYIKUYWXQPB-UHFFFAOYSA-N 0.000 claims description 6
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- DYAHQFWOVKZOOW-UHFFFAOYSA-N Sarin Chemical compound CC(C)OP(C)(F)=O DYAHQFWOVKZOOW-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- UCQFCFPECQILOL-UHFFFAOYSA-N diethyl hydrogen phosphate Chemical compound CCOP(O)(=O)OCC UCQFCFPECQILOL-UHFFFAOYSA-N 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 claims description 3
- WTJKGGKOPKCXLL-RRHRGVEJSA-N phosphatidylcholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCCC=CCCCCCCCC WTJKGGKOPKCXLL-RRHRGVEJSA-N 0.000 claims description 3
- 150000003905 phosphatidylinositols Chemical class 0.000 claims description 3
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 31
- 210000004027 cell Anatomy 0.000 description 14
- 238000005259 measurement Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- SWAIALBIBWIKKQ-UHFFFAOYSA-N lithium titanium Chemical compound [Li].[Ti] SWAIALBIBWIKKQ-UHFFFAOYSA-N 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 229910005698 Li(Li1/3Ti5/3)O4 Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010504 Li2(Li1/3Ti5/3)O4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000002449 bone cell Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013211 curve analysis Methods 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000004303 peritoneum Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000000954 titration curve Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- -1 tri Chemical compound 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/005—Alkali titanates
-
- 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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- 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
-
- 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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
도 2는 본 발명의 일 실시예에 따른 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법을 나타낸 공정 흐름도이다.
도 3은 본 발명의 시험예 1에서 실시예 1, 비교예 1 및 비교예 2에 따른 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)에 대해 측정한 X선 회절 분석 결과를 나타낸 그래프이다.
도 4는 본 발명의 시험예 2에서 실시예 1, 비교예 1 및 비교예 2에 따른 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 음극 활물질로 사용하여 제조된 반쪽 전지들에 대해 1 내지 3V에서 C/10으로 각각 충방전을 실시한 후, 충방전 특성의 측정 결과를 나타낸 그래프이다.
도 5는 본 발명의 시험예 2에서 실시예 1 및 비교예 1에서 제조한 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 음극 활물질로 사용하여 제조된 반쪽 전지들에 대해 1 내지 3V에서 C/10으로 50 사이클 충방전을 실시한 후, 충방전 특성의 측정 결과를 나타낸 그래프이다.
도 6은 본 발명의 시험예 2에서 실시예 1 및 비교예 1에서 제조한 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 음극 활물질로 사용하여 제조된 반쪽 전지들에 대해 1 내지 3V에서 C/10, C/5, 및 10C로 충방전을 실시한 후, 충방전 특성의 측정 결과를 나타낸 그래프이다.
도 7은 본 발명의 시험예 2에서 실시예 1 및 비교예 1에서 제조한 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 음극 활물질로 사용하여 제조된 반쪽 전지들에 대해 1 내지 3V 에서 0.1C으로 충전을 하는 동안 과전압에 의한 분극현상을 나타내는 GITT법(galvanostatic intermittent titration technique)을 실시한 후, 그 측정 결과를 나타낸 그래프이다.
도 8은 본 발명의 시험예 3에서 실시예 1 및 비교예 1에서 제조한 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 음극 활물질로 사용하여 제조된 반쪽 전지들에 대해 0.1Hz 내지 100KHz에서 0.005V로 Nyquist 특성의 측정한 후, 그 측정 결과를 나타낸 그래프이다.
도 9는 실시예 1 및 비교예 1에서 제조한 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)의 생체 적합성 측정 결과를 나타낸 그래프이다.
Claims (8)
- 스피넬 리튬 티타늄 옥사이드(Li4Ti5O12)를 유기인계 용매와 혼합하여 혼합 용액을 제조하는 단계(S1);
상기 혼합 용액에서 유기인계 용매와 분리하여 슬러리를 제조하는 단계(S2); 및
상기 슬러리를 열처리하는 단계(S3);
를 포함하고,
상기 S3 단계에서 상기 슬러리를 불활성 기체와 환원성 기체의 혼합기체 분위기 하에서 열처리하는 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 청구항 1에 있어서,
상기 유기인계 용매는 트리옥틸포스핀, 트리옥틸포스핀 옥사이드, 트리페닐포스핀, 인산, 포스파티딜콜린, 포스파티딜이노시톨, 파라티온, 사린 및 디에틸포스페이트로 이루어진 군에서 선택되는 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 청구항 1에 있어서,
상기 S2 단계는 상기 혼합 용액을 원심 분리하여 상층의 유기인계 용매를 제거하여 슬러리를 얻는 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 삭제
- 청구항 1에 있어서,
상기 슬러리를 열처리하는 과정은 500∼700 ℃에서 1∼3 시간 동안 수행되는 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 청구항 1에 있어서,
상기 불활성 기체는 헬륨(He), 질소(N2), 아르곤(Ar), 네온(Ne) 및 크세논(Xe)으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 청구항 1에 있어서,
상기 환원성 기체는 수소(H2)인 것을 특징으로 하는 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법.
- 청구항 1 내지 3, 청구항 5 내지 7 중 어느 한 항에 따라 제조된 표면처리된 스피넬 리튬 티타늄 옥사이드를 음극 활물질로 사용하여 제조된 리튬이차전지.
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KR1020110022509A KR101266752B1 (ko) | 2011-03-14 | 2011-03-14 | 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법 및 상기 스피넬 리튬 티타늄 옥사이드를 음극재로 이용하여 제조된 리튬이차전지 |
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KR1020110022509A KR101266752B1 (ko) | 2011-03-14 | 2011-03-14 | 표면처리된 스피넬 리튬 티타늄 옥사이드의 제조방법 및 상기 스피넬 리튬 티타늄 옥사이드를 음극재로 이용하여 제조된 리튬이차전지 |
Publications (2)
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