DC Field | Value | Language |
---|---|---|
dc.contributor.author | Son, In Hyuk | ko |
dc.contributor.author | Park, Jong Hwan | ko |
dc.contributor.author | Park, Seongyong | ko |
dc.contributor.author | Park, Kwangjin | ko |
dc.contributor.author | Han, Sangil | ko |
dc.contributor.author | Shin, Jaeho | ko |
dc.contributor.author | Doo, Seok-Gwang | ko |
dc.contributor.author | Hwang, Yunil | ko |
dc.contributor.author | Chang, Hyuk | ko |
dc.contributor.author | Choi, Jang Wook | ko |
dc.date.accessioned | 2017-12-19T01:22:07Z | - |
dc.date.available | 2017-12-19T01:22:07Z | - |
dc.date.created | 2017-12-04 | - |
dc.date.created | 2017-12-04 | - |
dc.date.issued | 2017-11 | - |
dc.identifier.citation | NATURE COMMUNICATIONS, v.8 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | http://hdl.handle.net/10203/228509 | - |
dc.description.abstract | Improving one property without sacrificing others is challenging for lithium-ion batteries due to the trade-off nature among key parameters. Here we report a chemical vapor deposition process to grow a graphene-silica assembly, called a graphene ball. Its hierarchical three-dimensional structure with the silicon oxide nanoparticle center allows even 1 wt% graphene ball to be uniformly coated onto a nickel-rich layered cathode via scalable Nobilta milling. The graphene-ball coating improves cycle life and fast charging capability by suppressing detrimental side reactions and providing efficient conductive pathways. The graphene ball itself also serves as an anode material with a high specific capacity of 716.2 mAh g(-1). A full-cell incorporating graphene balls increases the volumetric energy density by 27.6% compared to a control cell without graphene balls, showing the possibility of achieving 800 Wh L-1 in a commercial cell setting, along with a high cyclability of 78.6% capacity retention after 500 cycles at 5C and 60 degrees C. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | CHEMICAL-VAPOR-DEPOSITION | - |
dc.subject | WALLED CARBON NANOTUBES | - |
dc.subject | LI-ION BATTERIES | - |
dc.subject | CATHODE MATERIALS | - |
dc.subject | GRAPHITE ANODES | - |
dc.subject | RATE CAPABILITY | - |
dc.subject | GROWTH | - |
dc.subject | OXYGEN | - |
dc.title | Graphene balls for lithium rechargeable batteries with fast charging and high volumetric energy densities | - |
dc.type | Article | - |
dc.identifier.wosid | 000415323700008 | - |
dc.identifier.scopusid | 2-s2.0-85034589746 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.publicationname | NATURE COMMUNICATIONS | - |
dc.identifier.doi | 10.1038/s41467-017-01823-7 | - |
dc.contributor.localauthor | Choi, Jang Wook | - |
dc.contributor.nonIdAuthor | Son, In Hyuk | - |
dc.contributor.nonIdAuthor | Park, Jong Hwan | - |
dc.contributor.nonIdAuthor | Park, Seongyong | - |
dc.contributor.nonIdAuthor | Park, Kwangjin | - |
dc.contributor.nonIdAuthor | Han, Sangil | - |
dc.contributor.nonIdAuthor | Doo, Seok-Gwang | - |
dc.contributor.nonIdAuthor | Hwang, Yunil | - |
dc.contributor.nonIdAuthor | Chang, Hyuk | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CHEMICAL-VAPOR-DEPOSITION | - |
dc.subject.keywordPlus | WALLED CARBON NANOTUBES | - |
dc.subject.keywordPlus | LI-ION BATTERIES | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | GRAPHITE ANODES | - |
dc.subject.keywordPlus | RATE CAPABILITY | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | OXYGEN | - |
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