DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hong, Chung Su | ko |
dc.contributor.author | Qaiser, Nadeem | ko |
dc.contributor.author | Nam, Hyeon Gyun | ko |
dc.contributor.author | Han, Seung Min | ko |
dc.date.accessioned | 2019-07-18T05:30:10Z | - |
dc.date.available | 2019-07-18T05:30:10Z | - |
dc.date.created | 2019-07-15 | - |
dc.date.created | 2019-07-15 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.citation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.21, no.18, pp.9581 - 9589 | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.uri | http://hdl.handle.net/10203/263274 | - |
dc.description.abstract | Sn is one of the promising Li ion battery anode materials with high theoretical capacity and mechanical properties that allow for effective relaxation of Li diffusion-induced stresses. Sn is a low melting point metal with a low modulus and strength and has the ability to relax stresses via plasticity and creep deformations. In this study, concentration-dependent material properties are used in numerical simulations to model the Li diffusion-induced stress evolution in Sn micropillars. Simulation results using concentration-dependent material properties resulted in a completely different failure mode in comparison to that of concentration-independent simulation results. Tensile hoop stress needed for crack propagation was analyzed to be at the core for concentration-independent material properties, and switched to being at the surface for concentration-dependent simulation results. In addition, by incorporating these maximum tensile DIS results, the critical size for the failure of Sn micropillars was determined to be 5.3 mm at C/10 charging rate. This was then correlated with experimental observations, where fracture occurred in Sn micropillars with sizes larger than 6 mm, while 4.4 mm sized Sn micropillars survived the lithiation cycle. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Effect of Li concentration-dependent material properties on diffusion induced stresses of a Sn anode | - |
dc.type | Article | - |
dc.identifier.wosid | 000472922500062 | - |
dc.identifier.scopusid | 2-s2.0-85065621196 | - |
dc.type.rims | ART | - |
dc.citation.volume | 21 | - |
dc.citation.issue | 18 | - |
dc.citation.beginningpage | 9581 | - |
dc.citation.endingpage | 9589 | - |
dc.citation.publicationname | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.identifier.doi | 10.1039/c9cp00559e | - |
dc.contributor.localauthor | Han, Seung Min | - |
dc.contributor.nonIdAuthor | Nam, Hyeon Gyun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NEGATIVE ELECTRODE | - |
dc.subject.keywordPlus | ION BATTERIES | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | TIN | - |
dc.subject.keywordPlus | SILICON | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | FRACTURE | - |
dc.subject.keywordPlus | PHASES | - |
dc.subject.keywordPlus | LITHIATION | - |
dc.subject.keywordPlus | PARTICLES | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.