CARBON POWDER FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY
To provide a carbon powder for a negative electrode of a lithium ion secondary battery, the carbon powder providing: the lithium ion secondary battery having excellent input-output characteristics and high initial charge-discharge efficiency; and the negative electrode having high density.SOLUTION:...
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| creator | MADOKORO YASUSHI KOGA TOSHIHIRO |
| description | To provide a carbon powder for a negative electrode of a lithium ion secondary battery, the carbon powder providing: the lithium ion secondary battery having excellent input-output characteristics and high initial charge-discharge efficiency; and the negative electrode having high density.SOLUTION: The carbon powder for a negative electrode of a lithium-ion battery is provided, having: a particle diameter D50 of 3.2 μm or less; a value (particle diameter D90 - particle diameter D10)/particle diameter D50 of 4.0 or more; a specific surface area of 7.0 m2/g or more; and a ratio of the intensity of a 004 reflection to the intensity of a 110 reflection of 2.50 or less in a diffraction chart obtained by performing an X-ray diffraction measurement. Where, the particle diameter D50 represents a particle diameter with a cumulative degree of particle size distribution of 50% in volume percentage, the particle diameter D10 represents a particle diameter with a cumulative degree of particle size distribution of 10% in volume percentage, and the particle diameter D90 represents a particle diameter with a cumulative degree of particle size distribution of 90% in volume percentage.SELECTED DRAWING: None
【課題】 得られるリチウムイオン二次電池の入出力特性に優れ、初回充放電効率が高く、かつ、得られる負極の密度が高くなる、リチウムイオン二次電池負極用炭素粉末を提供すること。【解決手段】 粒子径Ｄ５０が３．２μｍ以下であり、（粒子径Ｄ９０－粒子径Ｄ１０）／粒子径Ｄ５０の値が４．０以上であり、比表面積が７．０ｍ２／ｇ以上であり、Ｘ線回折測定を行うことにより得られる回折チャートにおいて、１１０反射の強度に対する００４反射の強度の比が２．５０以下である、リチウムイオン二次電池負極用炭素粉末。ただし、上記粒子径Ｄ５０は、粒度分布の累積度数が体積百分率で５０％の粒子径を表し、上記粒子径Ｄ１０は、粒度分布の累積度数が体積百分率で１０％の粒子径を表し、上記粒子径Ｄ９０は、粒度分布の累積度数が体積百分率で９０％の粒子径を表す。【選択図】なし |
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【課題】 得られるリチウムイオン二次電池の入出力特性に優れ、初回充放電効率が高く、かつ、得られる負極の密度が高くなる、リチウムイオン二次電池負極用炭素粉末を提供すること。【解決手段】 粒子径Ｄ５０が３．２μｍ以下であり、（粒子径Ｄ９０－粒子径Ｄ１０）／粒子径Ｄ５０の値が４．０以上であり、比表面積が７．０ｍ２／ｇ以上であり、Ｘ線回折測定を行うことにより得られる回折チャートにおいて、１１０反射の強度に対する００４反射の強度の比が２．５０以下である、リチウムイオン二次電池負極用炭素粉末。ただし、上記粒子径Ｄ５０は、粒度分布の累積度数が体積百分率で５０％の粒子径を表し、上記粒子径Ｄ１０は、粒度分布の累積度数が体積百分率で１０％の粒子径を表し、上記粒子径Ｄ９０は、粒度分布の累積度数が体積百分率で９０％の粒子径を表す。【選択図】なし</description><language>eng ; jpn</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; COMPOUNDS THEREOF ; ELECTRICITY ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>2024</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=20240627&DB=EPODOC&CC=JP&NR=2024086602A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240627&DB=EPODOC&CC=JP&NR=2024086602A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MADOKORO YASUSHI</creatorcontrib><creatorcontrib>KOGA TOSHIHIRO</creatorcontrib><title>CARBON POWDER FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY</title><description>To provide a carbon powder for a negative electrode of a lithium ion secondary battery, the carbon powder providing: the lithium ion secondary battery having excellent input-output characteristics and high initial charge-discharge efficiency; and the negative electrode having high density.SOLUTION: The carbon powder for a negative electrode of a lithium-ion battery is provided, having: a particle diameter D50 of 3.2 μm or less; a value (particle diameter D90 - particle diameter D10)/particle diameter D50 of 4.0 or more; a specific surface area of 7.0 m2/g or more; and a ratio of the intensity of a 004 reflection to the intensity of a 110 reflection of 2.50 or less in a diffraction chart obtained by performing an X-ray diffraction measurement. Where, the particle diameter D50 represents a particle diameter with a cumulative degree of particle size distribution of 50% in volume percentage, the particle diameter D10 represents a particle diameter with a cumulative degree of particle size distribution of 10% in volume percentage, and the particle diameter D90 represents a particle diameter with a cumulative degree of particle size distribution of 90% in volume percentage.SELECTED DRAWING: None
【課題】 得られるリチウムイオン二次電池の入出力特性に優れ、初回充放電効率が高く、かつ、得られる負極の密度が高くなる、リチウムイオン二次電池負極用炭素粉末を提供すること。【解決手段】 粒子径Ｄ５０が３．２μｍ以下であり、（粒子径Ｄ９０－粒子径Ｄ１０）／粒子径Ｄ５０の値が４．０以上であり、比表面積が７．０ｍ２／ｇ以上であり、Ｘ線回折測定を行うことにより得られる回折チャートにおいて、１１０反射の強度に対する００４反射の強度の比が２．５０以下である、リチウムイオン二次電池負極用炭素粉末。ただし、上記粒子径Ｄ５０は、粒度分布の累積度数が体積百分率で５０％の粒子径を表し、上記粒子径Ｄ１０は、粒度分布の累積度数が体積百分率で１０％の粒子径を表し、上記粒子径Ｄ９０は、粒度分布の累積度数が体積百分率で９０％の粒子径を表す。【選択図】なし</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS THEREOF</subject><subject>ELECTRICITY</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJjr7Bjk5O-nEOAf7uIapODmH6Tg5-ruGOIZ5qrg6uPqHBLk7-Kq4O-m4OMZ4uEZ6qvgCVQc7Ors7-fiGBSp4OQYEuIaFKmDTRPILLy6FBz9XPCr4GFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgZGJgYWZmYGRo7GRCkCADJQRJ8</recordid><startdate>20240627</startdate><enddate>20240627</enddate><creator>MADOKORO YASUSHI</creator><creator>KOGA TOSHIHIRO</creator><scope>EVB</scope></search><sort><creationdate>20240627</creationdate><title>CARBON POWDER FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY</title><author>MADOKORO YASUSHI ; KOGA TOSHIHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2024086602A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2024</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS THEREOF</topic><topic>ELECTRICITY</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>MADOKORO YASUSHI</creatorcontrib><creatorcontrib>KOGA TOSHIHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MADOKORO YASUSHI</au><au>KOGA TOSHIHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CARBON POWDER FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY</title><date>2024-06-27</date><risdate>2024</risdate><abstract>To provide a carbon powder for a negative electrode of a lithium ion secondary battery, the carbon powder providing: the lithium ion secondary battery having excellent input-output characteristics and high initial charge-discharge efficiency; and the negative electrode having high density.SOLUTION: The carbon powder for a negative electrode of a lithium-ion battery is provided, having: a particle diameter D50 of 3.2 μm or less; a value (particle diameter D90 - particle diameter D10)/particle diameter D50 of 4.0 or more; a specific surface area of 7.0 m2/g or more; and a ratio of the intensity of a 004 reflection to the intensity of a 110 reflection of 2.50 or less in a diffraction chart obtained by performing an X-ray diffraction measurement. Where, the particle diameter D50 represents a particle diameter with a cumulative degree of particle size distribution of 50% in volume percentage, the particle diameter D10 represents a particle diameter with a cumulative degree of particle size distribution of 10% in volume percentage, and the particle diameter D90 represents a particle diameter with a cumulative degree of particle size distribution of 90% in volume percentage.SELECTED DRAWING: None
【課題】 得られるリチウムイオン二次電池の入出力特性に優れ、初回充放電効率が高く、かつ、得られる負極の密度が高くなる、リチウムイオン二次電池負極用炭素粉末を提供すること。【解決手段】 粒子径Ｄ５０が３．２μｍ以下であり、（粒子径Ｄ９０－粒子径Ｄ１０）／粒子径Ｄ５０の値が４．０以上であり、比表面積が７．０ｍ２／ｇ以上であり、Ｘ線回折測定を行うことにより得られる回折チャートにおいて、１１０反射の強度に対する００４反射の強度の比が２．５０以下である、リチウムイオン二次電池負極用炭素粉末。ただし、上記粒子径Ｄ５０は、粒度分布の累積度数が体積百分率で５０％の粒子径を表し、上記粒子径Ｄ１０は、粒度分布の累積度数が体積百分率で１０％の粒子径を表し、上記粒子径Ｄ９０は、粒度分布の累積度数が体積百分率で９０％の粒子径を表す。【選択図】なし</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | CARBON POWDER FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY |
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