KR100441513B1 - 전지용 활물질 및 그의 제조방법 - Google Patents
전지용 활물질 및 그의 제조방법 Download PDFInfo
- Publication number
- KR100441513B1 KR100441513B1 KR10-2002-0012570A KR20020012570A KR100441513B1 KR 100441513 B1 KR100441513 B1 KR 100441513B1 KR 20020012570 A KR20020012570 A KR 20020012570A KR 100441513 B1 KR100441513 B1 KR 100441513B1
- Authority
- KR
- South Korea
- Prior art keywords
- active material
- battery
- conductive agent
- lithium
- group
- Prior art date
Links
- 239000011149 active material Substances 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims abstract description 47
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 45
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- 238000000576 coating method Methods 0.000 claims description 65
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 62
- 229910052744 lithium Inorganic materials 0.000 claims description 59
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- 239000000243 solution Substances 0.000 claims description 44
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 21
- 229910001416 lithium ion Inorganic materials 0.000 claims description 21
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- QDZRBIRIPNZRSG-UHFFFAOYSA-N titanium nitrate Chemical compound [O-][N+](=O)O[Ti](O[N+]([O-])=O)(O[N+]([O-])=O)O[N+]([O-])=O QDZRBIRIPNZRSG-UHFFFAOYSA-N 0.000 claims description 6
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- 238000001914 filtration Methods 0.000 claims description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910014689 LiMnO Inorganic materials 0.000 description 2
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 2
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
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- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
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- 238000001354 calcination Methods 0.000 description 1
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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- YQNQTEBHHUSESQ-UHFFFAOYSA-N lithium aluminate Chemical compound [Li+].[O-][Al]=O YQNQTEBHHUSESQ-UHFFFAOYSA-N 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- HZRMTWQRDMYLNW-UHFFFAOYSA-N lithium metaborate Chemical compound [Li+].[O-]B=O HZRMTWQRDMYLNW-UHFFFAOYSA-N 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
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- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
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- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000002335 surface treatment layer Substances 0.000 description 1
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- 239000006234 thermal black Substances 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- QUBMWJKTLKIJNN-UHFFFAOYSA-B tin(4+);tetraphosphate Chemical compound [Sn+4].[Sn+4].[Sn+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QUBMWJKTLKIJNN-UHFFFAOYSA-B 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
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- H—ELECTRICITY
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Abstract
Description
실시예 1 | 실시예 2 | 실시예 3 | 비교예 1 | |
도전제의 양(wt%) | 0.15 | 0.3 | 0.5 | 3 |
활물질의 밀도(mg/㎠) | 47 | 44 | 42 | 32 |
Claims (46)
- 전기화학적 산화/환원(redox)이 가능한 물질;도전제; 및 도전제와 전도성 고분자 분산제의 혼합물로 이루어진 군에서 선택되는, 상기 물질 위에 형성되는 코팅층을 포함하며,상기 도전제의 함량은 활물질에 대하여 0.1 내지 10 중량%이고, 상기 코팅층의 도전제의 평균 입경이 1㎛ 이하인 전지용 활물질.
- 제1항에 있어서, 상기 활물질이 금속, 리튬 함유 합금, 황계 화합물, 리튬과 가역적으로 리튬-함유 화합물을 형성할 수 있는 물질 및 리튬 이온을 가역적으로 인터칼레이션/디인터칼레이션할 수 있는 리튬 인터칼레이션 화합물로 이루어진 군에서 선택되는 적어도 하나의 물질인 전지용 활물질.
- 제2항에 있어서, 상기 금속이 리튬, 주석, 및 티타늄으로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제2항에 있어서, 상기 리튬-함유 합금이 리튬/알루미늄 합금, 리튬/주석 합금 및 리튬/마그네슘 합금으로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제2항에 있어서, 상기 황계 화합물이 황 원소, Li2Sn(n≥1), 유기 황 화합물, 및 탄소-황 폴리머((C2Sx)n: x= 2.5 내지 50, n≥2)로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제2항에 있어서, 상기 리튬과 가역적으로 리튬-함유 화합물을 형성할 수 있는 물질로는 실리콘(Si), 티타늄 나이트레이트, 및 이산화주석(SnO2)으로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제2항에 있어서, 상기 리튬 인터칼레이션 화합물로는 탄소재 물질, 리튬 복합 금속 산화물, 및 리튬 함유 칼코게나이드 화합물로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제2항에 있어서, 상기 탄소재 물질이 비정질 탄소, 결정질 탄소 및 이들의 혼합물로 이루어진 군에서 선택되는 전지용 활물질.
- 제2항에 있어서, 상기 리튬 인터칼레이션 화합물이 하기 화학식 (1) 내지 (13)으로 이루어진 군에서 선택되는 적어도 하나의 화합물인 전지용 활물질:LixMn1-yM'yA2(1)LixMn1-yM'yO2-zXz(2)LixMn2O4-zXz(3)LixMn2-yM'yA4(4)LixCo1-yM'yA2(5)LixCo1-yM'yO2-zXz(6)LixNi1-yM'yA2(7)LixNi1-yM'yO2-zXz(8)LixNi1-yCoyO2-zXz(9)LixNi1-y-zCoyM'zAα(10)LixNi1-y-zCoyM'zO2-αXα(11)LixNi1-y-zMnyM'zAα(12)LixNi1-y-zMnyM'zO2-αXα(13)상기 식에서, 0.95 ≤x ≤1.1, 0 ≤y ≤0.5, 0 ≤z ≤0.5, 0 < α≤2이고, M'는 Al, Ni, Co, Mn, Cr, Fe, Mg, Sr, V 또는 희토류 원소로 이루어진 군에서 선택되는 적어도 하나의 원소이며, A는 O, F, S 및 P로 이루어진 군에서 선택되는 원소이고, X는 F, S 및 P로 이루어진 군에서 선택되는 원소임.
- 제7항에 있어서, 상기 리튬-함유 화합물의 평균입경이 1 내지 50 ㎛인 전지용 활물질.
- 제10항에 있어서, 상기 리튬-함유 화합물의 평균입경이 5 내지 20 ㎛인 전지용 활물질.
- 제11항에 있어서, 상기 리튬-함유 화합물의 평균입경이 5 내지 10 ㎛인 전지용 활물질.
- 제1항에 있어서, 상기 도전제는 카본계 도전제, 흑연계 도전제, 금속계 도전제 및 금속 화합물계 도전제로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제7항에 있어서, 상기 리튬-함유 화합물 또는 리튬-함유 칼코게나이드 화합물이 기본 구조로서 모노클리닉(monoclinic), 헥사고날 또는 큐빅 구조를 가지는 화합물인 전지용 활물질.
- 제1항에 있어서, 상기 코팅층 아래에 위치하는 MPO4, MSO4및 MWO4(여기서 M은 13족 원소임)로 이루어진 군에서 선택되는 또 다른 코팅층을 더 포함하는 전지용 활물질.
- 삭제
- 제1항에 있어서, 상기 도전제의 함량은 활물질을 기준으로 1 내지 4 중량%인 전지용 활물질.
- 삭제
- 제1항에 있어서, 상기 전도성 고분자 분산제는 폴리에틸렌 옥사이드, 폴리프로필렌 옥사이드, 에틸렌 옥사이드(EO)와 프로필렌 옥사이드(PO)를 포함하는 (EO)l(PO)m(EO)l(l 및 m은 1 내지 500의 범위에 있음.) 블록 코폴리머, 폴리비닐클로라이드(PVC), 아크릴로니트릴/부타디엔/스티렌(ABS) 폴리머, 아크릴로니트릴/스티렌/아크릴에스테르(ASA) 폴리머, 아크릴로니트릴/스티렌/아크릴에스테르(ASA) 폴리머와 프로필렌 카보네이트의 혼합물, 스티렌/아크릴로니트릴(SAN) 코폴리머, 및 메틸메타크릴레이트/아크릴로니트릴/부타디엔/스티렌(MABS) 폴리머로 이루어진 군에서 선택되는 적어도 하나인 전지용 활물질.
- 제19항에 있어서, 상기 전도성 고분자 분산제의 함량은 도전제를 기준으로 0.1 내지 20 중량%인 전지용 활물질.
- 양극; 음극; 및 상기 양극과 음극사이에 존재하는 세퍼레이터를 포함하고, 상기 양극과 음극중 적어도 하나는 집전체 및 상기 집전체에 코팅된 양극활물질을 포함하고, 상기 양극 활물질은 도전제 및 도전제와 전도성 고분자 분산제의 혼합물로 이루어진 군에서 선택되는 코팅층을 가지는 것인 포함하는 전지.
- 제21항에 있어서, 상기 양극 활물질은 금속, 리튬 함유 합금, 황계 화합물, 리튬과 가역적으로 리튬-함유 화합물을 형성할 수 있는 물질 및 리튬 이온을 가역적으로 인터칼레이션/디인터칼레이션할 수 있는 리튬 인터칼레이션 화합물로 이루어진 군에서 선택되는 적어도 하나의 물질인 전지.
- 제22항에 있어서, 상기 금속이 리튬, 주석, 및 티타늄으로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제22항에 있어서, 상기 리튬-함유 합금이 리튬/알루미늄 합금, 리튬/주석 합금 및 리튬/마그네슘 합금으로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제22항에 있어서, 상기 황계 화합물이 황 원소, Li2Sn(n≥1), 유기 황 화합물, 및 탄소-황 폴리머((C2Sx)n: x= 2.5 내지 50, n≥2)로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제22항에 있어서, 상기 리튬과 가역적으로 리튬-함유 화합물을 형성할 수 있는 물질로는 실리콘(Si), 티타늄 나이트레이트, 및 이산화주석(SnO2)으로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제22항에 있어서, 상기 리튬 인터칼레이션 화합물로는 탄소재 물질, 리튬 복합 금속 산화물, 및 리튬 함유 칼코게나이드 화합물로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제22항에 있어서, 상기 탄소재 물질이 비정질 탄소, 결정질 탄소 및 이들의 혼합물로 이루어진 군에서 선택되는 전지.
- 제27항에 있어서, 상기 리튬 인터칼레이션 화합물의 평균입경이 1 내지 50 ㎛인 전지.
- 제21항에 있어서, 상기 도전제는 카본계 도전제, 흑연계 도전제, 금속계 도전제 및 금속 화합물계 도전제로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제21항에 있어서, 상기 도전제의 함량은 활물질에 대하여 0.1 내지 10 중량%인 전지.
- 제21항에 있어서, 상기 코팅층의 도전제의 평균 입경이 1㎛ 이하인 전지.
- 제21항에 있어서, 상기 코팅층이 도전제 및 전도성 고분자 분산제의 혼합물을 포함하는 것인 전지.
- 제33항에 있어서, 상기 전도성 고분자 분산제는 폴리에틸렌 옥사이드, 폴리프로필렌 옥사이드, 에틸렌 옥사이드(EO)와 프로필렌 옥사이드(PO)를 포함하는 (EO)l(PO)m(EO)l(l 및 m은 1 내지 500의 범위에 있음.) 블록 코폴리머, 폴리비닐클로라이드(PVC), 아크릴로니트릴/부타디엔/스티렌(ABS) 폴리머, 아크릴로니트릴/스티렌/아크릴에스테르(ASA) 폴리머, 아크릴로니트릴/스티렌/아크릴에스테르(ASA) 폴리머와 프로필렌 카보네이트의 혼합물, 스티렌/아크릴로니트릴(SAN) 코폴리머, 및 메틸메타크릴레이트/아크릴로니트릴/부타디엔/스티렌(MABS) 폴리머로 이루어진 군에서 선택되는 적어도 하나인 전지.
- 제33항에 있어서, 상기 전도성 고분자 분산제의 함량은 도전제를 기준으로 0.1 내지 20 중량%인 전지.
- 활물질을 제공하는 단계; 및상기 활물질을 도전제 및 도전제와 전도성 고분자 분산제의 혼합물로 이루어진 군에서 선택되는 적어도 하나의 물질로 코팅하는 단계를 포함하는 전지용 활물질의 제조방법.
- 제36항에 있어서, 상기 코팅층은a) 도전제, 분산제 및 계면활성제를 용매에 첨가하여 분산 코팅액을 제조하는 단계;b) 상기 분산 코팅액에 활물질을 첨가하여 활물질 표면에 도전제를 코팅하는 단계; 및c) 코팅된 활물질을 열처리하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질의 제조방법.
- 제36항에 있어서, 상기 코팅층은a) 도전제와 분산제를 용매에 첨가하여 분산 코팅액을 제조하는 단계;b) 계면활성제 함유 현탁액에 활물질을 첨가하여 혼합하는 단계;c) 상기 a) 단계에서 제조된 분산 코팅액과 c) 단계에서 제조된 활물질 함유현탁액을 혼합하여 활물질 표면에 도전제를 코팅하는 단계; 및d) 코팅된 활물질을 열처리하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질의 제조방법.
- 제36항에 있어서, 상기 코팅층은a) 도전제 및 전도성 고분자 분산제를 용매에 첨가하여 도전제와 전도성 고분자 분산제를 포함하는 분산 코팅액을 제조하는 단계;b) 상기 분산 코팅액에 활물질을 첨가하여 활물질 표면에 도전제와 전도성 고분자 분산제를 코팅하는 단계; 및c) 코팅된 활물질을 건조하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질의 제조방법.
- 제36항에 있어서, 상기 코팅층은a) 도전제와 분산제를 용매에 첨가하여 분산 코팅액을 제조하는 단계;b) 젤라틴을 용매에 첨가한 후 산을 첨가하여 pH를 3-4로 조절하는 단계;c) 활물질 표면에 코팅되지 않은 여분의 젤라틴을 제거하고 pH를 5-8로 조절하는 단계;d) 상기 a) 단계에서 제조된 분산 코팅액과 c) 단계에서 제조된 활물질 함유 현탁액을 혼합하여 활물질 표면에 도전제를 코팅하는 단계; 및e) 코팅된 활물질을 열처리하여 젤라틴을 제거하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질의 제조방법.
- a) 알코올계 용매에 활물질 및 포스페이트계, 설페이트계 및 텅스테이트계 계면활성제로 이루어진 군에서 선택되는 적어도 하나의 계면활성제를 첨가하여 활물질을 분산시키는 단계;b) 상기 활물질이 분산된 현탁액에 MX3(여기서 M은 13족 원소이고 X는 할로겐 원소임) 화합물을 첨가하여 M3+이온이 계면활성제의 친수성 헤드 그룹에 정전기적 결합을 형성하는 단계; 및c) 상기 정전기적 결합을 형성한 활물질을 여과하여 저온에서 소성하는 단계를 포함하는표면에 메조포로스(mesoporous) MPO4, MSO4, 또는 MWO4코팅층(여기서 M은 13족 원소임)이 형성된 활물질의 제조방법.
- 양극을 제조하는 단계;음극을 제조하는 단계; 및상기 양극과 음극 사이에 세퍼레이터를 위치하게 하고 전해액을 함침하는 단계를 포함하고,상기 양극과 음극중 적어도 하나는 도전제 및 도전제와 전도성 고분자의 혼합물로 이루어진 군에서 선택되는 적어도 하나의 물질로 코팅된 활물질을 포함하는것인 전지의 제조방법.
- 제42항에 있어서,a) 바인더를 용매에 용해시켜 바인더 용액을 제조하는 단계;b) 상기 바인더 용액에 상기 코팅된 활물질을 첨가하여 슬러리를 제조하는 단계; 및c) 상기 슬러리를 전류 집전체에 코팅하여 양극 또는 음극용 극판을 제조하는 단계(여기서, 극판은 코팅된 활물질을 포함함)를 더 포함하는 전지의 제조방법.
- 제42항에 있어서,a) 도전제, 전도성 고분자 분산제 및 바인더를 용매에 첨가하여 코팅액을 제조하는 단계;b) 상기 코팅액에 활물질을 첨가하여 슬러리를 제조하는 단계; 및c) 상기 슬러리를 전류 집전체에 코팅하여 양극 또는 음극용 극판을 제조하는 단계(여기서, 상기 극판은 코팅된 활물질을 포함함)를 더 포함하는 전지의 제조방법.
- 전기화학적 산화/환원 반응이 가능한 활물질; 및상기 활물질 위에 존재하는 도전제 및 전도성 고분자 분산제의 혼합물의 코팅층을 포함하고, 상기 코팅층은a) 도전제 및 전도성 고분자 분산제를 용매에 첨가하여 분산 코팅액을 제조하는 단계;b) 상기 분산 코팅액에 활물질을 첨가하여 활물질 표면에 도전제와 전도성 고분자 분산제를 코팅하는 단계; 및c) 코팅된 활물질을 건조하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질.
- 전기화학적 산화/환원이 가능한 활물질; 및상기 활물질 위에 존재하는 도전제 코팅층을 포함하고, 상기 코팅층은a) 도전제와 분산제를 용매에 첨가하여 분산 코팅액을 제조하는 단계;b) 젤라틴을 용매에 첨가한 후 산을 첨가하여 pH를 3-4로 조절하는 단계;c) 활물질 표면에 코팅되지 않은 여분의 젤라틴을 제거하고 pH를 5-8로 조절하는 단계;d) 상기 a) 단계에서 제조된 분산 코팅액과 c) 단계에서 제조된 활물질 함유 현탁액을 혼합하여 활물질 표면에 도전제를 코팅하는 단계; 및e) 코팅된 활물질을 열처리하여 젤라틴을 제거하는 단계를 포함하는 공정에 의해 형성되는 전지용 활물질.
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JP2001023613A (ja) * | 1999-07-09 | 2001-01-26 | Matsushita Electric Ind Co Ltd | リチウム二次電池 |
JP2001068096A (ja) * | 1999-08-30 | 2001-03-16 | Matsushita Electric Ind Co Ltd | 非水電解質二次電池用負極、その製造方法および非水電解質二次電池 |
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WO2010120011A1 (ko) * | 2009-04-13 | 2010-10-21 | 주식회사 엘지화학 | 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
KR101080956B1 (ko) | 2009-04-13 | 2011-11-08 | 국립대학법인 울산과학기술대학교 산학협력단 | 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지 |
US8669008B2 (en) | 2009-04-13 | 2014-03-11 | Lg Chem, Ltd. | Negative-electrode active material for rechargeable lithium battery |
US9413000B2 (en) | 2009-04-13 | 2016-08-09 | Lg Chem, Ltd. | Negative-electrode active material for rechargeable lithium battery |
WO2016114589A1 (ko) * | 2015-01-13 | 2016-07-21 | 주식회사 엘지화학 | 리튬 이차전지의 양극 형성용 조성물의 제조방법, 및 이를 이용하여 제조한 양극 및 리튬 이차전지 |
US10290859B2 (en) | 2015-01-13 | 2019-05-14 | Lg Chem, Ltd. | Method of preparing composition for forming positive electrode of lithium secondary battery, and positive electrode and lithium secondary battery manufactured by using the composition |
DE102015221813A1 (de) | 2015-04-17 | 2016-10-20 | Hyundai Motor Company | Positive Elektrode für eine Lithiumionenbatterie und Lithiumionenbatterie, die diese verwendet |
KR20160123839A (ko) | 2015-04-17 | 2016-10-26 | 현대자동차주식회사 | 리튬이온전지용 양극 및 이를 이용한 리튬이온전지 |
US12087940B2 (en) | 2019-05-31 | 2024-09-10 | Lg Energy Solution, Ltd. | Carbon having redox functional group-containing polymer layer formed thereon, and sulfur-carbon composite and lithium secondary battery including same |
Also Published As
Publication number | Publication date |
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KR20030021112A (ko) | 2003-03-12 |
CN1423353A (zh) | 2003-06-11 |
US6878487B2 (en) | 2005-04-12 |
US20030049529A1 (en) | 2003-03-13 |
EP1291941A3 (en) | 2008-05-28 |
EP1291941A2 (en) | 2003-03-12 |
EP1291941B1 (en) | 2014-03-19 |
CN1333475C (zh) | 2007-08-22 |
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