NON-AQUEOUS, HIGH CAPACITY CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PREPARING SAME
The present invention relates to a non-aqueous cathode material for lithium secondary batteries using a spherical transition metal complex carbonate, and a method for preparing same. The present invention is for ensuring outstanding life expectancy, while allowing a high capacity of 250 mAh/g or mor...
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| creator | WOO, Sanggil LEE, Kyungjun KIM, Jeomsoo CHO, Woosuk PARK, Yeonggwang YIM, Taeeun SONG, Junho KIM, Youngjun |
| description | The present invention relates to a non-aqueous cathode material for lithium secondary batteries using a spherical transition metal complex carbonate, and a method for preparing same. The present invention is for ensuring outstanding life expectancy, while allowing a high capacity of 250 mAh/g or more to be implemented by coating the surface of the spherical transition metal complex carbonate with a nano-sized metal oxide to improve the structural stability of the final cathode material. According to the present invention, since the surface of a spherical transition metal complex carbonate, which is prepared by using a cobalt material, nickel material, manganese material, carboxyl group material, and ammonia material, is coated with titanium dioxide, it is possible to prepare a spherical transition metal complex carbonate having a surface coated with a transition metal oxide having a particle size of 5-25 µm and a composition ratio represented by the chemical formula: Ni x Co y Mn 1-x-y Ti z CO 3 (0.0 |
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The present invention is for ensuring outstanding life expectancy, while allowing a high capacity of 250 mAh/g or more to be implemented by coating the surface of the spherical transition metal complex carbonate with a nano-sized metal oxide to improve the structural stability of the final cathode material. According to the present invention, since the surface of a spherical transition metal complex carbonate, which is prepared by using a cobalt material, nickel material, manganese material, carboxyl group material, and ammonia material, is coated with titanium dioxide, it is possible to prepare a spherical transition metal complex carbonate having a surface coated with a transition metal oxide having a particle size of 5-25 µm and a composition ratio represented by the chemical formula: Ni x Co y Mn 1-x-y Ti z CO 3 (0.0<x‰¤0.3, 0.0<y‰¤0.2, 0.01‰¤z‰¤0.1, 0.5‰¤1-x-y). In addition, by mixing the prepared, surface-coated transition metal complex carbonate with a lithium material and heat-treating the resultant material, it is possible to prepare a spherical Li-rich cathode material having a primary particle size of 200 nm or more, and a 0.1C capacity of 250 mAh/g or more, and capable of implementing 96% or more of the initial capacity in a full cell after charging and discharging 60 times.</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; ELECTRICITY ; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS ; INORGANIC CHEMISTRY ; METALLURGY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2016</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=20161221&DB=EPODOC&CC=EP&NR=3086389A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161221&DB=EPODOC&CC=EP&NR=3086389A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WOO, Sanggil</creatorcontrib><creatorcontrib>LEE, Kyungjun</creatorcontrib><creatorcontrib>KIM, Jeomsoo</creatorcontrib><creatorcontrib>CHO, Woosuk</creatorcontrib><creatorcontrib>PARK, Yeonggwang</creatorcontrib><creatorcontrib>YIM, Taeeun</creatorcontrib><creatorcontrib>SONG, Junho</creatorcontrib><creatorcontrib>KIM, Youngjun</creatorcontrib><title>NON-AQUEOUS, HIGH CAPACITY CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PREPARING SAME</title><description>The present invention relates to a non-aqueous cathode material for lithium secondary batteries using a spherical transition metal complex carbonate, and a method for preparing same. The present invention is for ensuring outstanding life expectancy, while allowing a high capacity of 250 mAh/g or more to be implemented by coating the surface of the spherical transition metal complex carbonate with a nano-sized metal oxide to improve the structural stability of the final cathode material. According to the present invention, since the surface of a spherical transition metal complex carbonate, which is prepared by using a cobalt material, nickel material, manganese material, carboxyl group material, and ammonia material, is coated with titanium dioxide, it is possible to prepare a spherical transition metal complex carbonate having a surface coated with a transition metal oxide having a particle size of 5-25 µm and a composition ratio represented by the chemical formula: Ni x Co y Mn 1-x-y Ti z CO 3 (0.0<x‰¤0.3, 0.0<y‰¤0.2, 0.01‰¤z‰¤0.1, 0.5‰¤1-x-y). In addition, by mixing the prepared, surface-coated transition metal complex carbonate with a lithium material and heat-treating the resultant material, it is possible to prepare a spherical Li-rich cathode material having a primary particle size of 200 nm or more, and a 0.1C capacity of 250 mAh/g or more, and capable of implementing 96% or more of the initial capacity in a full cell after charging and discharging 60 times.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>ELECTRICITY</subject><subject>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</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>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi0sKwjAURTtxIOoe3gJaECJSh6_paxNoPuYz6KgUiTgQLdT9YxUX4OgeOOeus5s2usBzJBN9DkK2Ajha5DL0CwRhagKFgZzEDhrjoJNByKjAEze6RtdDhWHxfQ6oa1D0-XxL68iik7oFj4q22eo63ue0--0mg4YCF0WankOap_GSHuk1kGX78sjKEx7YH8kbj4w0_g</recordid><startdate>20161221</startdate><enddate>20161221</enddate><creator>WOO, Sanggil</creator><creator>LEE, Kyungjun</creator><creator>KIM, Jeomsoo</creator><creator>CHO, Woosuk</creator><creator>PARK, Yeonggwang</creator><creator>YIM, Taeeun</creator><creator>SONG, Junho</creator><creator>KIM, Youngjun</creator><scope>EVB</scope></search><sort><creationdate>20161221</creationdate><title>NON-AQUEOUS, HIGH CAPACITY CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PREPARING SAME</title><author>WOO, Sanggil ; LEE, Kyungjun ; KIM, Jeomsoo ; CHO, Woosuk ; PARK, Yeonggwang ; YIM, Taeeun ; SONG, Junho ; KIM, Youngjun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3086389A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2016</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>ELECTRICITY</topic><topic>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</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>WOO, Sanggil</creatorcontrib><creatorcontrib>LEE, Kyungjun</creatorcontrib><creatorcontrib>KIM, Jeomsoo</creatorcontrib><creatorcontrib>CHO, Woosuk</creatorcontrib><creatorcontrib>PARK, Yeonggwang</creatorcontrib><creatorcontrib>YIM, Taeeun</creatorcontrib><creatorcontrib>SONG, Junho</creatorcontrib><creatorcontrib>KIM, Youngjun</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WOO, Sanggil</au><au>LEE, Kyungjun</au><au>KIM, Jeomsoo</au><au>CHO, Woosuk</au><au>PARK, Yeonggwang</au><au>YIM, Taeeun</au><au>SONG, Junho</au><au>KIM, Youngjun</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NON-AQUEOUS, HIGH CAPACITY CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PREPARING SAME</title><date>2016-12-21</date><risdate>2016</risdate><abstract>The present invention relates to a non-aqueous cathode material for lithium secondary batteries using a spherical transition metal complex carbonate, and a method for preparing same. The present invention is for ensuring outstanding life expectancy, while allowing a high capacity of 250 mAh/g or more to be implemented by coating the surface of the spherical transition metal complex carbonate with a nano-sized metal oxide to improve the structural stability of the final cathode material. According to the present invention, since the surface of a spherical transition metal complex carbonate, which is prepared by using a cobalt material, nickel material, manganese material, carboxyl group material, and ammonia material, is coated with titanium dioxide, it is possible to prepare a spherical transition metal complex carbonate having a surface coated with a transition metal oxide having a particle size of 5-25 µm and a composition ratio represented by the chemical formula: Ni x Co y Mn 1-x-y Ti z CO 3 (0.0<x‰¤0.3, 0.0<y‰¤0.2, 0.01‰¤z‰¤0.1, 0.5‰¤1-x-y). In addition, by mixing the prepared, surface-coated transition metal complex carbonate with a lithium material and heat-treating the resultant material, it is possible to prepare a spherical Li-rich cathode material having a primary particle size of 200 nm or more, and a 0.1C capacity of 250 mAh/g or more, and capable of implementing 96% or more of the initial capacity in a full cell after charging and discharging 60 times.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | NON-AQUEOUS, HIGH CAPACITY CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PREPARING SAME |
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