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Graphene balls for lithium rechargeable batteries with fast charging and high volumetric energy densities
DC Field | Value | Language |
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dc.contributor.author | Son, In Hyuk | - |
dc.contributor.author | Park, Jong Hwan | - |
dc.contributor.author | Park, Seongyong | - |
dc.contributor.author | Park, Kwangjin | - |
dc.contributor.author | Han, Sangil | - |
dc.contributor.author | Shin, Jaeho | - |
dc.contributor.author | Doo, Seok-Gwang | - |
dc.contributor.author | Hwang, Yunil | - |
dc.contributor.author | Chang, Hyuk | - |
dc.contributor.author | Choi, Jang Wook | - |
dc.date.accessioned | 2020-03-16T11:09:25Z | - |
dc.date.available | 2020-03-16T11:09:25Z | - |
dc.date.created | 2018-06-29 | - |
dc.date.issued | 2017-11 | - |
dc.identifier.citation | Nature Communications, Vol.8, p. 1561 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.other | 38417 | - |
dc.identifier.uri | https://hdl.handle.net/10371/164671 | - |
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 | 영어 | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Graphene balls for lithium rechargeable batteries with fast charging and high volumetric energy densities | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 최장욱 | - |
dc.identifier.doi | 10.1038/s41467-017-01823-7 | - |
dc.citation.journaltitle | Nature Communications | - |
dc.identifier.wosid | 000415323700008 | - |
dc.identifier.scopusid | 2-s2.0-85034589746 | - |
dc.citation.startpage | 1561 | - |
dc.citation.volume | 8 | - |
dc.identifier.sci | 000415323700008 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Choi, Jang Wook | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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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