| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Solid-state Divalent Ion Conductivity |
| Author(s) |
Kimberly See, Andrew J. Martinolich |
| On-Site Speaker (Planned) |
Kimberly See |
| Abstract Scope |
Batteries based on divalent ions are attractive next-generation energy storage options because of their high capacity metal anodes. Realization of divalent batteries is blocked by a series of challenges posed by the use of divalent ions in electrochemical cells including suggested poor solid-state ion diffusion. Understanding solid-state divalent diffusion is important for the development of electrodes employing intercalation-type mechanisms, low impedance surface layers on metal surfaces, and solid-state electrolytes, to name a few. To begin developing the structure-property relationships that describe divalent ion diffusion, we will discuss Zn<sup>2+</sup> conductivity in ZnPS<sub>3</sub>. ZnPS<sub>3</sub> supports Zn<sup>2+</sup> conduction with low activation energies of 350 meV, contrary to conventional wisdom. The low activation energy is facilitated by the flexibility of the [P<sub>2</sub>S<sub>6</sub>]<sup>4-</sup> polyanion. ZnPS<sub>3</sub> represents one of the first electronically insulating, solid-state, inorganic, divalent ion conductors. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |