dc.contributor.author | Cao, Simeng | |
dc.date.accessioned | 2021-03-26T12:35:36Z | |
dc.date.available | 2021-03-26T12:35:36Z | |
dc.date.issued | 2021-03-26T12:35:36Z | |
dc.identifier.uri | http://hdl.handle.net/10222/80310 | |
dc.description.abstract | Si-based negative electrode materials are promising for lithium batteries. However, Si-based negative electrode materials suffer from huge volume change, crystallization effect (Li15Si4 formation), unstable solid electrolyte interface during cycling. Preparing Si/inactive materials and Si/C compounds (especially carbon coated Si materials) are two efficient methods to alleviate these problems mentioned above. This work focuses on designing and developing new Si-transition metal negative electrode materials. Si-Mo, Si-TiN, and Si-Ti-N-O alloys were prepared by Ar milling, N2 (g) milling, and air milling, respectively. Composition, morphology, and electrochemical performance of Si-Mo, Si-TiN, and Si-Ti-N-O alloys were investigated. Thermal stability of these alloys was also studied, since high thermal stability is an important requirement for preparing carbon coated Si negative electrode materials at high temperature. A preliminary study of high temperature carbon coating preparation for these Si alloys studied in this thesis and related issues were also discussed. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Silicon | en_US |
dc.subject | Negative Electrode | en_US |
dc.subject | Li-ion Batteries | en_US |
dc.title | Si Alloy Negative Electrode Materials for Li-ion Batteries | en_US |
dc.type | Thesis | en_US |
dc.date.defence | 2021-03-16 | |
dc.contributor.department | Department of Chemistry | en_US |
dc.contributor.degree | Doctor of Philosophy | en_US |
dc.contributor.external-examiner | Egbert Figgemeier | en_US |
dc.contributor.graduate-coordinator | Peng Zhang | en_US |
dc.contributor.thesis-reader | Peng Zhang | en_US |
dc.contributor.thesis-reader | Mita Dasog | en_US |
dc.contributor.thesis-reader | Theodore Monchesky | en_US |
dc.contributor.thesis-supervisor | Mark Obrovac | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |