Method for producing lithium-transitional metal oxide using prussian blue analogue lithium-transitional metal oxide and lithium secondary battery
The present invention provides a method for preparing a lithium-transition metal oxide. The method includes a step of forming particles of prussian blue analogue (PBA) represented by chemical formula 1 of M^1_aM^2_b[M^3(CN)_6]_c. The PBA particles are dispersed into aqueous solution containing a lit...
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| creator | KIM JEONG HEON PARK HYUN JUNG SONG TAE SUB |
| description | The present invention provides a method for preparing a lithium-transition metal oxide. The method includes a step of forming particles of prussian blue analogue (PBA) represented by chemical formula 1 of M^1_aM^2_b[M^3(CN)_6]_c. The PBA particles are dispersed into aqueous solution containing a lithium salt dissolved therein, followed by filtering and drying, so that the PBA particles may be coated with the lithium salt. The lithium salt-coated PBA particles are pyrolyzed under air to oxidize the CN bridges in PBA into oxygen bridges. The resultant product obtained after the oxidization step is calcined to obtain a lithium-transition metal oxide. In chemical formula 1, each of M^1 and M^2 is a transition metal having an oxidation number of 2 and independently represents Ni, Mn, Co, Fe, Ti, V or Cr, c is 1-5, and a and b have positive values by which the compound of chemical formula 1 becomes electrically neutral.
리튬-전이금속 산화물 제조 방법을 제공한다. 리튬-전이금속 산화물 제조 방법은 하기 화학식 1로 나타낸 프러시안 블루 아날로그(prussian blue analogue; 이하 PBA라고 한다) 입자들을 형성하는 단계를 포함한다. 상기 PBA 입자들을 리튬염이 용해된 수용액 내에 분산시키고 필터링 및 건조하여, 상기 PBA 입자들을 리튬염으로 코팅한다. 상기 리튬염으로 코팅된 PBA 입자들을 공기분위기에서 열분해하여(pyrolysis)하여 PBA 내의 CN 브릿지들을 산소 브릿지들로 산화한다. 상기 산화 단계를 거친 결과물을 하소하여(calcination) 리튬-전이금속 산화물을 얻는다. [화학식 1] MM[M(CN)]상기 화학식 1에서, M및 M는 2가의 산화수를 갖는 전이금속으로 서로에 관계없이 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, M는 3가의 산화수를 갖는 전이금속으로 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, c은 1 내지 5이고, a와 b는 상기 화학식 1의 화합물을 전기적으로 중성이 되도록 하는 양의 값을 갖는다. |
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리튬-전이금속 산화물 제조 방법을 제공한다. 리튬-전이금속 산화물 제조 방법은 하기 화학식 1로 나타낸 프러시안 블루 아날로그(prussian blue analogue; 이하 PBA라고 한다) 입자들을 형성하는 단계를 포함한다. 상기 PBA 입자들을 리튬염이 용해된 수용액 내에 분산시키고 필터링 및 건조하여, 상기 PBA 입자들을 리튬염으로 코팅한다. 상기 리튬염으로 코팅된 PBA 입자들을 공기분위기에서 열분해하여(pyrolysis)하여 PBA 내의 CN 브릿지들을 산소 브릿지들로 산화한다. 상기 산화 단계를 거친 결과물을 하소하여(calcination) 리튬-전이금속 산화물을 얻는다. [화학식 1] MM[M(CN)]상기 화학식 1에서, M및 M는 2가의 산화수를 갖는 전이금속으로 서로에 관계없이 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, M는 3가의 산화수를 갖는 전이금속으로 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, c은 1 내지 5이고, a와 b는 상기 화학식 1의 화합물을 전기적으로 중성이 되도록 하는 양의 값을 갖는다.</description><language>eng ; kor</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; ELECTRICITY ; INORGANIC CHEMISTRY ; METALLURGY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200604&DB=EPODOC&CC=KR&NR=20200062740A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200604&DB=EPODOC&CC=KR&NR=20200062740A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIM JEONG HEON</creatorcontrib><creatorcontrib>PARK HYUN JUNG</creatorcontrib><creatorcontrib>SONG TAE SUB</creatorcontrib><title>Method for producing lithium-transitional metal oxide using prussian blue analogue lithium-transitional metal oxide and lithium secondary battery</title><description>The present invention provides a method for preparing a lithium-transition metal oxide. The method includes a step of forming particles of prussian blue analogue (PBA) represented by chemical formula 1 of M^1_aM^2_b[M^3(CN)_6]_c. The PBA particles are dispersed into aqueous solution containing a lithium salt dissolved therein, followed by filtering and drying, so that the PBA particles may be coated with the lithium salt. The lithium salt-coated PBA particles are pyrolyzed under air to oxidize the CN bridges in PBA into oxygen bridges. The resultant product obtained after the oxidization step is calcined to obtain a lithium-transition metal oxide. In chemical formula 1, each of M^1 and M^2 is a transition metal having an oxidation number of 2 and independently represents Ni, Mn, Co, Fe, Ti, V or Cr, c is 1-5, and a and b have positive values by which the compound of chemical formula 1 becomes electrically neutral.
리튬-전이금속 산화물 제조 방법을 제공한다. 리튬-전이금속 산화물 제조 방법은 하기 화학식 1로 나타낸 프러시안 블루 아날로그(prussian blue analogue; 이하 PBA라고 한다) 입자들을 형성하는 단계를 포함한다. 상기 PBA 입자들을 리튬염이 용해된 수용액 내에 분산시키고 필터링 및 건조하여, 상기 PBA 입자들을 리튬염으로 코팅한다. 상기 리튬염으로 코팅된 PBA 입자들을 공기분위기에서 열분해하여(pyrolysis)하여 PBA 내의 CN 브릿지들을 산소 브릿지들로 산화한다. 상기 산화 단계를 거친 결과물을 하소하여(calcination) 리튬-전이금속 산화물을 얻는다. [화학식 1] MM[M(CN)]상기 화학식 1에서, M및 M는 2가의 산화수를 갖는 전이금속으로 서로에 관계없이 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, M는 3가의 산화수를 갖는 전이금속으로 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, c은 1 내지 5이고, a와 b는 상기 화학식 1의 화합물을 전기적으로 중성이 되도록 하는 양의 값을 갖는다.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>ELECTRICITY</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyzELwjAQBeAuDqL-hwPnQqiicxFFEBdxL9fm2gbSXEguYH-G_9gKOuvy3hu-N8-eV5KeNbQcwAfWqTGuA2ukN2nIJaCLRgw7tDCQTMkPowlSfDMfUowGHdQ2EeCEuJvGzzc6_UUQqWGnMYxQowiFcZnNWrSRVp9eZOvT8X445-S5ouixIUdSXW6FKpRSu2K_VeXmP_UCJddSEA</recordid><startdate>20200604</startdate><enddate>20200604</enddate><creator>KIM JEONG HEON</creator><creator>PARK HYUN JUNG</creator><creator>SONG TAE SUB</creator><scope>EVB</scope></search><sort><creationdate>20200604</creationdate><title>Method for producing lithium-transitional metal oxide using prussian blue analogue lithium-transitional metal oxide and lithium secondary battery</title><author>KIM JEONG HEON ; PARK HYUN JUNG ; SONG TAE SUB</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20200062740A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2020</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>ELECTRICITY</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>KIM JEONG HEON</creatorcontrib><creatorcontrib>PARK HYUN JUNG</creatorcontrib><creatorcontrib>SONG TAE SUB</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIM JEONG HEON</au><au>PARK HYUN JUNG</au><au>SONG TAE SUB</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for producing lithium-transitional metal oxide using prussian blue analogue lithium-transitional metal oxide and lithium secondary battery</title><date>2020-06-04</date><risdate>2020</risdate><abstract>The present invention provides a method for preparing a lithium-transition metal oxide. The method includes a step of forming particles of prussian blue analogue (PBA) represented by chemical formula 1 of M^1_aM^2_b[M^3(CN)_6]_c. The PBA particles are dispersed into aqueous solution containing a lithium salt dissolved therein, followed by filtering and drying, so that the PBA particles may be coated with the lithium salt. The lithium salt-coated PBA particles are pyrolyzed under air to oxidize the CN bridges in PBA into oxygen bridges. The resultant product obtained after the oxidization step is calcined to obtain a lithium-transition metal oxide. In chemical formula 1, each of M^1 and M^2 is a transition metal having an oxidation number of 2 and independently represents Ni, Mn, Co, Fe, Ti, V or Cr, c is 1-5, and a and b have positive values by which the compound of chemical formula 1 becomes electrically neutral.
리튬-전이금속 산화물 제조 방법을 제공한다. 리튬-전이금속 산화물 제조 방법은 하기 화학식 1로 나타낸 프러시안 블루 아날로그(prussian blue analogue; 이하 PBA라고 한다) 입자들을 형성하는 단계를 포함한다. 상기 PBA 입자들을 리튬염이 용해된 수용액 내에 분산시키고 필터링 및 건조하여, 상기 PBA 입자들을 리튬염으로 코팅한다. 상기 리튬염으로 코팅된 PBA 입자들을 공기분위기에서 열분해하여(pyrolysis)하여 PBA 내의 CN 브릿지들을 산소 브릿지들로 산화한다. 상기 산화 단계를 거친 결과물을 하소하여(calcination) 리튬-전이금속 산화물을 얻는다. [화학식 1] MM[M(CN)]상기 화학식 1에서, M및 M는 2가의 산화수를 갖는 전이금속으로 서로에 관계없이 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, M는 3가의 산화수를 갖는 전이금속으로 Ni, Mn, Co, Fe, Ti, V, 또는 Cr이고, c은 1 내지 5이고, a와 b는 상기 화학식 1의 화합물을 전기적으로 중성이 되도록 하는 양의 값을 갖는다.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Method for producing lithium-transitional metal oxide using prussian blue analogue lithium-transitional metal oxide and lithium secondary battery |
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