KR100651156B1 - 리튬이 혼합된 금속 화합물의 제조 방법 - Google Patents
리튬이 혼합된 금속 화합물의 제조 방법 Download PDFInfo
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Abstract
Description
Claims (20)
- 금속 화합물 및 리튬 화합물을 포함하는 반응 혼합물을 준비하는 단계; 및상기 반응 혼합물을 부유(浮游; suspended) 탄소 입자의 존재하에 대기에 노출시키고, 상기 반응 혼합물의 하나 이상의 금속 이온을 리튬 및 환원된 금속 이온을 포함하는 반응 산물을 형성하기에 충분한 온도에서 환원시키는 단계를 포함하는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제1항에 있어서,상기 반응 혼합물을 환원시키는 단계는 환원 챔버(10)에서 수행되며, 상기 부유 탄소 입자는, 상기 환원 챔버(10)에서 탄소성 물질을 가열하고, 상기 환원 챔버(10)로 유입되는 비-산화성(non-oxidizing) 캐리어 가스가 상기 가열된 탄소성 물질 위로 유동함으로써 상기 환원 챔버(10)에서 부유하게 되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제2항에 있어서,상기 비-산화성 캐리어 가스는 질소, 아르곤, 일산화탄소, 이산화탄소 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제1항에 있어서,상기 반응 혼합물의 금속 이온을 환원시키는 단계는 400℃ 내지 1000℃의 온도 범위에서 1 내지 30시간 동안 수행되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 금속 화합물, 리튬 화합물 및 인산기-함유 화합물을 포함하는 반응 혼합물을 준비하는 단계; 및상기 반응 혼합물을 부유 탄소 입자의 존재하에 대기에 노출시키고, 상기 반응 혼합물의 하나 이상의 금속 이온을 리튬, 환원된 금속 이온 및 인산기를 포함하는 단일 상(single phase) 반응 산물을 형성하기에 충분한 온도에서 환원시키는 단계를 포함하는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 반응 혼합물은, 상기 금속 화합물에서 해리된 금속 이온, 상기 리튬 화합물에서 해리된 Li+ 및 상기 인산기-함유 화합물에서 해리된 (PO4)3-를 포함하는 용액을 준비한 다음, 상기 용액을 건조함으로써 형성되며,상기 단일 상 반응 산물은 LixMyPO4의 구조식을 가지며, 여기에서 0.8≤x≤1.2, 0.8≤y≤1.2이며, M은 환원된 금속 이온으로서, Fe, Ti, V, Cr, Mn, Co, Ni 및 이들의 조합으로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 반응 혼합물을 환원시키는 단계는 환원 챔버(10)에서 수행되며, 상기 부유 탄소 입자는, 상기 환원 챔버(10)에서 탄소성 물질을 가열하고, 상기 환원 챔버(10)로 유입되는 비-산화성 캐리어 가스가 상기 가열된 탄소성 물질 위로 유동함으로써 상기 환원 챔버(10)에서 부유하게 되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제7항에 있어서,상기 비-산화성 캐리어 가스는 질소, 아르곤, 일산화탄소, 이산화탄소 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제7항에 있어서,상기 탄소성 물질은 목탄(charcoal), 그래파이트(graphite), 탄소 분말, 석탄, 유기 화합물 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제7항에 있어서,상기 탄소성 물질을 가열하는 단계는 300℃ 내지 1100℃의 온도 범위에서 수행되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 금속 화합물은, 전이 금속 분말 및 산의 혼합물로부터 형성되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제11항에 있어서,상기 산은 질산, 황산, 염산, 과염소산, 차염소산, 플루오르화수소산, 브롬화수소산, 인산 및 이들의 혼합물로 이루어진 군에서 선택되는 무기산인 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제11항에 있어서,상기 산은 포름산, 아세트산, 프로피온산, 시트르산, 타르타르산, 락트산 및 이들의 혼합물로 이루어진 군에서 선택되는 유기산인 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제11항에 있어서,상기 전이 금속 분말은 철 분말인 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제14항에 있어서,상기 금속 화합물은 질산제2철 및 염화제2철로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 리튬 화합물은 수산화리튬, 플루오르화리튬, 염화리튬, 산화리튬, 질산리튬, 아세트산리튬, 인산리튬, 인산수소리튬, 인산이수소리튬, 인산암모늄리튬, 인산이암모늄리튬 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 인산기-함유 화합물은 인산수소암모늄, 인산이수소암모늄, 인산암모늄, 오산화이인(phosphorus pentoxide), 인산, 인산리튬, 인산수소리튬, 인산이수소리튬, 인산암모늄리튬, 인산이암모늄리튬 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 반응 혼합물을 환원시키기에 앞서, 상기 반응 혼합물에 당류 (saccharide)를 첨가하는 단계를 더 포함하는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제18항에 있어서,상기 당류는 수크로오스(sucrose), 글리칸(glycan) 및 다당류(polysaccharide)로 이루어진 군에서 선택되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
- 제5항에 있어서,상기 반응 혼합물의 금속 이온을 환원시키는 단계는 400℃ 내지 1000℃의 온도 범위에서 1 내지 30시간 동안 수행되는 것을 특징으로 하는 리튬이 혼합된 금속 화합물의 제조 방법.
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TW094115023 | 2005-05-10 | ||
TW094115023A TWI254031B (en) | 2005-05-10 | 2005-05-10 | Manufacturing method of LixMyPO4 compound with olivine structure |
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GB2395059B (en) | 2002-11-05 | 2005-03-16 | Imp College Innovations Ltd | Structured silicon anode |
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CA2522114A1 (en) | 2006-11-10 |
TWI254031B (en) | 2006-05-01 |
JP4482507B2 (ja) | 2010-06-16 |
CA2522114C (en) | 2009-11-24 |
JP2006315939A (ja) | 2006-11-24 |
KR20060116669A (ko) | 2006-11-15 |
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