Understanding anion redox in Li-ion and Na-ion batteries using multimodal methodologies
The Stanford Synchrotron Radiation Lightsource, a division of the SLAC National Accelerator Laboratory, and Stanford University seeks a Postdoctoral Scholar for understanding anion redox in Li-ion and Na-ion batteries. The objective is to accurately determine the atomic-level origin of oxygen redox in Li-(Na-)rich layered metal oxide cathodes for Li-ion batteries and how oxygen redox activity depends on metal oxide structure and defect levels, including cation anti-site, cation and oxygen vacancies and local order. This postdoc position involves working closely with researchers at Stanford (Will Chueh group).
The three year postdoctoral position will involve the use of X-ray and neutron scattering (diffraction and pair distribution function) and potentially X-ray imaging to quantitatively determine the structure of Li-rich and Na-rich layered metal oxides, focusing on the defects, including vacancies, vacancy clusters and cation anti-sites (“transition metal migration”). The local atomic structure will be related to the oxygen redox activity obtained from electrochemistry and resonant inelastic X-ray scattering (RIXS). From this, we seek to obtain an atomic scale understanding of how local atomic structure influences and determines oxygen redox which can be used to guide development of alternative high-capacity cathode materials.
- D. in chemistry, materials sciences, physics or related fields.
- experience with X-ray or neutron scattering and diffraction.
- Experience with electrochemical energy storage
- Strong experimental, analytical and computation skills.
- effective written and verbal communication skills.
- ability to work and communicate effectively with a diverse population; good interpersonal skills are essential.
- ability to work independently and in a team environment.
Some recent publications include:
- “Metal-Oxygen Decoordination Stabilizes Anion Redox in Li-rich Oxides”, J. Hong, W.E. Gent, P. Xiao, Kipil Lim, D-H Seo, J Wu, P.M. Csernica, C.J. Takacs, D. Nordlund, C.-J Sun, K.H. Stone, D. Passarello, W. Yang, D. Prendergast, G. Ceder, M.F. Toney, W.C. Chueh, Nature Mater 18, 256–265 (2019). DOI: 1038/s41563-018-0276-1
- “Solid Electrolyte Interphase on Native Oxide-Terminated Silicon Anodes for Li-Ion Batteries”, C. Cao, I.I. Abate, E. Sivonxay, B. Shyam, C. Jia, B. Moritz, T.P. Devereaux, K.A. Persson, H.-G. Steinruck, M.F. Toney, Joule 3, 762-781 (2019). DOI: 10.1016/j.joule.2018.12.013
- “Coupling between oxygen redox and cation migration explains unusual electrochemistry in lithium-rich layered oxides”, W. E. Gent, K. Lim, Y. Liang, Q. Li, T. Barnes, S.-J. Ahn, K.H. Stone, M. McIntire, J. Hong, J.H. Song, Y. Li, A. Mehta, S. Ermon, T. Tyliszczak, D. Kilcoyne, D. Vine, J.-H. Park, S.-K. Doo, M.F. Toney, W. Yang, D. Prendergast, W.C. Chueh, Nat. Comm 8, 2019 (2017). doi: 10.1038/s41467-017-02041-x
To apply for this job please visit careers.slac.stanford.edu.