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DC Field | Value | Language |
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dc.citation.endPage | 1175 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 1164 | - |
dc.citation.title | NATURE ENERGY | - |
dc.citation.volume | 6 | - |
dc.contributor.author | Sung, Jaekyung | - |
dc.contributor.author | Kim, Namhyung | - |
dc.contributor.author | Ma, Jiyoung | - |
dc.contributor.author | Lee, Jeong Hyeon | - |
dc.contributor.author | Joo, Se Hun | - |
dc.contributor.author | Lee, Taeyong | - |
dc.contributor.author | Chae, Sujong | - |
dc.contributor.author | Yoon, Moonsu | - |
dc.contributor.author | Lee, Yoonkwang | - |
dc.contributor.author | Hwang, Jaeseong | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Cho, Jaephil | - |
dc.date.accessioned | 2023-12-21T14:50:11Z | - |
dc.date.available | 2023-12-21T14:50:11Z | - |
dc.date.created | 2021-12-24 | - |
dc.date.issued | 2021-12 | - |
dc.description.abstract | Silicon-based anodes are a promising alternative to the graphite anodes that are widely used in today's commercial batteries. Here the authors report a synthesis route for silicon anodes consisting of subnanometre-sized particles and demonstrate their use in an unusual large-scale battery pack system. Due to the large volume variation of high-capacity alloy-based anodes during cycling, it is desirable to use small anode particles for an extended battery cycle life. However, it is still challenging to realize subnano-sized particles (<1 nm). Here we show a growth inhibition mechanism that prevents continuous enlargement of size immediately after nucleation during chemical vapour deposition. The growth inhibition is successfully applied to the synthesis of silicon, thereby yielding subnano-sized (<1 nm) silicon embedded in a highly stable dual matrix composed of carbon and silicon carbide. Ethylene not only functions as a silicon growth inhibitor, thereby slowing the growth of nucleated silicon via Si-C bond formation, but also acts as a source to create the dual matrix. The subnano-sized silicon anode enhances the cycling stability (Coulombic efficiency reaching 99.96% over 50 cycles). Finally, the practical application of the fabricated energy storage system (103.2 kWh) containing 110 Ah full-cells with 91% capacity retention for 2,875 cycles and a calendar life of 97.6% for 1 year is demonstrated. |
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dc.identifier.bibliographicCitation | NATURE ENERGY, v.6, no.12, pp.1164 - 1175 | - |
dc.identifier.doi | 10.1038/s41560-021-00945-z | - |
dc.identifier.issn | 2058-7546 | - |
dc.identifier.scopusid | 2-s2.0-85121024292 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/55665 | - |
dc.identifier.url | https://www.nature.com/articles/s41560-021-00945-z | - |
dc.identifier.wosid | 000729687900001 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.title | Subnano-sized silicon anode via crystal growth inhibition mechanism and its application in a prototype battery pack | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Energy & Fuels; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | REACTIVE MOLECULAR-DYNAMICS | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | CARBIDE | - |
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