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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 151 | - |
dc.citation.startPage | 145 | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 315 | - |
dc.contributor.author | Ko, Younghoon | - |
dc.contributor.author | Hwang, Chihyun | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.date.accessioned | 2023-12-21T23:44:28Z | - |
dc.date.available | 2023-12-21T23:44:28Z | - |
dc.date.created | 2016-05-30 | - |
dc.date.issued | 2016-05 | - |
dc.description.abstract | The parameters characterizing lithiation processes in silicon anodes of lithium ion batteries (LIBs) are compared between mu m- and nm-sized silicon particles. Galvanostatic electrochemical impedance spectroscopy (GS-EIS) is used to investigate the silicon-lithium alloying reaction in a practical charging operation (galvanostatic lithiation). Effective kinetic parameters depending on lithiation C-rates are obtained along lithiation progress from a large body of impedance data. Nanosizing benefits of nano particles over micro-particles are confirmed such as lower polarization resistance (R-p) and thinner solid electrolyte interphase layer (SEI layer) over the whole lithiation range. Based on the kinetic information obtained from the non-stationary conditions, a lithiation strategy consisting of multiple galvanostatic steps is designed to lithiate silicon anodes in a faster way. 75% of full capacity is lithiated by a galvanostatic sequence of 4C-2C-1C-0.5C within 20 min. However, only 43% and 21% are achieved by a single-rate galvanostatic lithiation at 1 C and 0.5 C, respectively. | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.315, pp.145 - 151 | - |
dc.identifier.doi | 10.1016/j.jpowsour.2016.03.008 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.scopusid | 2-s2.0-84977557982 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/19289 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0378775316302099 | - |
dc.identifier.wosid | 000374810700017 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Investigation on silicon alloying kinetics during lithiation by galvanostatic impedance spectroscopy | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Electrochemistry; Energy & Fuels; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Lithium ion batteries | - |
dc.subject.keywordAuthor | Electrochemical impedance spectroscopy | - |
dc.subject.keywordAuthor | Silicon | - |
dc.subject.keywordAuthor | Fast charge | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | RECHARGEABLE BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL IMPEDANCE | - |
dc.subject.keywordPlus | GRAPHITE-ELECTRODES | - |
dc.subject.keywordPlus | STRUCTURAL-CHANGES | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | MATRIX | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | LI | - |
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