SILICON-CARBON COMPOSITE HAVING A YOLK-SHELL STRUCTURE, MANUFACTURING METHOD THEREFOR, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME

The present invention relates to a silicon-carbon composite having a yolk-shell structure, a manufacturing method therefor, and a negative electrode active material comprising same. The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be...

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Hauptverfasser:	PARK, Sarang, JANG, Wontae, KIM, Do Heung, IM, Sung Gap, JEON, Hyo Jin, KIM, Eui Duk, CHOI, Keonwoo, KANG, Minjeong
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	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
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creator	PARK, Sarang JANG, Wontae KIM, Do Heung IM, Sung Gap JEON, Hyo Jin KIM, Eui Duk CHOI, Keonwoo KANG, Minjeong
description	The present invention relates to a silicon-carbon composite having a yolk-shell structure, a manufacturing method therefor, and a negative electrode active material comprising same. The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be manufactured without an etching process using a strong acid and may have uniform pores formed therein by using a polymer layer having a uniform thickness as a sacrificial layer. Accordingly, the silicon-carbon composite, when used as a negative electrode active material, may accommodate the volume expansion of silicon and thus may suppress the phenomenon in which the outermost carbon thin film is peeled off. As a result, the degradation of battery performance and lifespan may be suppressed. La présente invention concerne un composite silicium-carbone ayant une structure jaune-enveloppe, sa méthode de fabrication, et un matériau actif d'électrode négative le comprenant. Le composite silicium-carbone ayant une structure jaune-enveloppe selon un mode de réalisation de la présente invention peut être fabriqué sans procédé de gravure à l'aide d'un acide fort et peut avoir des pores uniformes formés à l'intérieur de celui-ci à l'aide d'une couche polymère ayant une épaisseur uniforme en tant que couche sacrificielle. En conséquence, le composite silicium-carbone, lorsqu'il est utilisé en tant que matériau actif d'électrode négative, peut s'adapter à l'expansion du volume de silicium et peut ainsi supprimer le phénomène dans lequel le film mince de carbone le plus à l'extérieur est décollé. Ainsi, la dégradation des performances et de la durée de vie de la batterie peut être supprimée. 본 발명은 요크-쉘 구조의 실리콘-탄소 복합체, 이의 제조방법 및 이를 포함하는 음극 활물질에 관한 것이다. 본 발명의 구현예에 따른 요크-쉘 구조의 실리콘-탄소 복합체는 강산을 이용한 식각(에칭) 과정 없이 제조될 수 있고, 균일한 두께의 고분자층을 희생층으로 활용하여 균일한 공극을 형성할 수 있음에 따라, 음극 활물질로서 사용 시 실리콘의 부피 팽창을 수용함으로써 이에 의해 최외곽 탄소 박막이 벗겨지는 현상을 억제할 수 있다. 그 결과, 배터리 성능 및 수명의 저하를 억제할 수 있다.
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The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be manufactured without an etching process using a strong acid and may have uniform pores formed therein by using a polymer layer having a uniform thickness as a sacrificial layer. Accordingly, the silicon-carbon composite, when used as a negative electrode active material, may accommodate the volume expansion of silicon and thus may suppress the phenomenon in which the outermost carbon thin film is peeled off. As a result, the degradation of battery performance and lifespan may be suppressed. La présente invention concerne un composite silicium-carbone ayant une structure jaune-enveloppe, sa méthode de fabrication, et un matériau actif d'électrode négative le comprenant. Le composite silicium-carbone ayant une structure jaune-enveloppe selon un mode de réalisation de la présente invention peut être fabriqué sans procédé de gravure à l'aide d'un acide fort et peut avoir des pores uniformes formés à l'intérieur de celui-ci à l'aide d'une couche polymère ayant une épaisseur uniforme en tant que couche sacrificielle. En conséquence, le composite silicium-carbone, lorsqu'il est utilisé en tant que matériau actif d'électrode négative, peut s'adapter à l'expansion du volume de silicium et peut ainsi supprimer le phénomène dans lequel le film mince de carbone le plus à l'extérieur est décollé. Ainsi, la dégradation des performances et de la durée de vie de la batterie peut être supprimée. 본 발명은 요크-쉘 구조의 실리콘-탄소 복합체, 이의 제조방법 및 이를 포함하는 음극 활물질에 관한 것이다. 본 발명의 구현예에 따른 요크-쉘 구조의 실리콘-탄소 복합체는 강산을 이용한 식각(에칭) 과정 없이 제조될 수 있고, 균일한 두께의 고분자층을 희생층으로 활용하여 균일한 공극을 형성할 수 있음에 따라, 음극 활물질로서 사용 시 실리콘의 부피 팽창을 수용함으로써 이에 의해 최외곽 탄소 박막이 벗겨지는 현상을 억제할 수 있다. 그 결과, 배터리 성능 및 수명의 저하를 억제할 수 있다.</description><language>eng ; fre ; kor</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=20240704&DB=EPODOC&CC=WO&NR=2024144252A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240704&DB=EPODOC&CC=WO&NR=2024144252A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PARK, Sarang</creatorcontrib><creatorcontrib>JANG, Wontae</creatorcontrib><creatorcontrib>KIM, Do Heung</creatorcontrib><creatorcontrib>IM, Sung Gap</creatorcontrib><creatorcontrib>JEON, Hyo Jin</creatorcontrib><creatorcontrib>KIM, Eui Duk</creatorcontrib><creatorcontrib>CHOI, Keonwoo</creatorcontrib><creatorcontrib>KANG, Minjeong</creatorcontrib><title>SILICON-CARBON COMPOSITE HAVING A YOLK-SHELL STRUCTURE, MANUFACTURING METHOD THEREFOR, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME</title><description>The present invention relates to a silicon-carbon composite having a yolk-shell structure, a manufacturing method therefor, and a negative electrode active material comprising same. The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be manufactured without an etching process using a strong acid and may have uniform pores formed therein by using a polymer layer having a uniform thickness as a sacrificial layer. Accordingly, the silicon-carbon composite, when used as a negative electrode active material, may accommodate the volume expansion of silicon and thus may suppress the phenomenon in which the outermost carbon thin film is peeled off. As a result, the degradation of battery performance and lifespan may be suppressed. La présente invention concerne un composite silicium-carbone ayant une structure jaune-enveloppe, sa méthode de fabrication, et un matériau actif d'électrode négative le comprenant. Le composite silicium-carbone ayant une structure jaune-enveloppe selon un mode de réalisation de la présente invention peut être fabriqué sans procédé de gravure à l'aide d'un acide fort et peut avoir des pores uniformes formés à l'intérieur de celui-ci à l'aide d'une couche polymère ayant une épaisseur uniforme en tant que couche sacrificielle. En conséquence, le composite silicium-carbone, lorsqu'il est utilisé en tant que matériau actif d'électrode négative, peut s'adapter à l'expansion du volume de silicium et peut ainsi supprimer le phénomène dans lequel le film mince de carbone le plus à l'extérieur est décollé. Ainsi, la dégradation des performances et de la durée de vie de la batterie peut être supprimée. 본 발명은 요크-쉘 구조의 실리콘-탄소 복합체, 이의 제조방법 및 이를 포함하는 음극 활물질에 관한 것이다. 본 발명의 구현예에 따른 요크-쉘 구조의 실리콘-탄소 복합체는 강산을 이용한 식각(에칭) 과정 없이 제조될 수 있고, 균일한 두께의 고분자층을 희생층으로 활용하여 균일한 공극을 형성할 수 있음에 따라, 음극 활물질로서 사용 시 실리콘의 부피 팽창을 수용함으로써 이에 의해 최외곽 탄소 박막이 벗겨지는 현상을 억제할 수 있다. 그 결과, 배터리 성능 및 수명의 저하를 억제할 수 있다.</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>eNqNjUEKwjAURLtxIeodPri1YGs9wDf9NcEkX5JfxZWIxJWoUK_hnbXiAVwNM7yZGWavaKxR7HOFYcUeFLstRyMEGnfGrwHhwHaTR03WQpTQKmkDzcChbxvsTU85Es01iKZADYcZoK_B0xrF7AjIkpLANcGn0AcOhYJB-70LJvYTER2Ns8HldO3S5KejbNqQKJ2nx_2YusfpnG7pedxzOS-roqrKZYnF4j_qDbGIQMY</recordid><startdate>20240704</startdate><enddate>20240704</enddate><creator>PARK, Sarang</creator><creator>JANG, Wontae</creator><creator>KIM, Do Heung</creator><creator>IM, Sung Gap</creator><creator>JEON, Hyo Jin</creator><creator>KIM, Eui Duk</creator><creator>CHOI, Keonwoo</creator><creator>KANG, Minjeong</creator><scope>EVB</scope></search><sort><creationdate>20240704</creationdate><title>SILICON-CARBON COMPOSITE HAVING A YOLK-SHELL STRUCTURE, MANUFACTURING METHOD THEREFOR, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME</title><author>PARK, Sarang ; JANG, Wontae ; KIM, Do Heung ; IM, Sung Gap ; JEON, Hyo Jin ; KIM, Eui Duk ; CHOI, Keonwoo ; KANG, Minjeong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2024144252A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; kor</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>PARK, Sarang</creatorcontrib><creatorcontrib>JANG, Wontae</creatorcontrib><creatorcontrib>KIM, Do Heung</creatorcontrib><creatorcontrib>IM, Sung Gap</creatorcontrib><creatorcontrib>JEON, Hyo Jin</creatorcontrib><creatorcontrib>KIM, Eui Duk</creatorcontrib><creatorcontrib>CHOI, Keonwoo</creatorcontrib><creatorcontrib>KANG, Minjeong</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PARK, Sarang</au><au>JANG, Wontae</au><au>KIM, Do Heung</au><au>IM, Sung Gap</au><au>JEON, Hyo Jin</au><au>KIM, Eui Duk</au><au>CHOI, Keonwoo</au><au>KANG, Minjeong</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SILICON-CARBON COMPOSITE HAVING A YOLK-SHELL STRUCTURE, MANUFACTURING METHOD THEREFOR, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME</title><date>2024-07-04</date><risdate>2024</risdate><abstract>The present invention relates to a silicon-carbon composite having a yolk-shell structure, a manufacturing method therefor, and a negative electrode active material comprising same. The silicon-carbon composite having a yolk-shell structure according to an embodiment of the present invention may be manufactured without an etching process using a strong acid and may have uniform pores formed therein by using a polymer layer having a uniform thickness as a sacrificial layer. Accordingly, the silicon-carbon composite, when used as a negative electrode active material, may accommodate the volume expansion of silicon and thus may suppress the phenomenon in which the outermost carbon thin film is peeled off. As a result, the degradation of battery performance and lifespan may be suppressed. La présente invention concerne un composite silicium-carbone ayant une structure jaune-enveloppe, sa méthode de fabrication, et un matériau actif d'électrode négative le comprenant. Le composite silicium-carbone ayant une structure jaune-enveloppe selon un mode de réalisation de la présente invention peut être fabriqué sans procédé de gravure à l'aide d'un acide fort et peut avoir des pores uniformes formés à l'intérieur de celui-ci à l'aide d'une couche polymère ayant une épaisseur uniforme en tant que couche sacrificielle. En conséquence, le composite silicium-carbone, lorsqu'il est utilisé en tant que matériau actif d'électrode négative, peut s'adapter à l'expansion du volume de silicium et peut ainsi supprimer le phénomène dans lequel le film mince de carbone le plus à l'extérieur est décollé. Ainsi, la dégradation des performances et de la durée de vie de la batterie peut être supprimée. 본 발명은 요크-쉘 구조의 실리콘-탄소 복합체, 이의 제조방법 및 이를 포함하는 음극 활물질에 관한 것이다. 본 발명의 구현예에 따른 요크-쉘 구조의 실리콘-탄소 복합체는 강산을 이용한 식각(에칭) 과정 없이 제조될 수 있고, 균일한 두께의 고분자층을 희생층으로 활용하여 균일한 공극을 형성할 수 있음에 따라, 음극 활물질로서 사용 시 실리콘의 부피 팽창을 수용함으로써 이에 의해 최외곽 탄소 박막이 벗겨지는 현상을 억제할 수 있다. 그 결과, 배터리 성능 및 수명의 저하를 억제할 수 있다.</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	SILICON-CARBON COMPOSITE HAVING A YOLK-SHELL STRUCTURE, MANUFACTURING METHOD THEREFOR, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME
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