About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Energy Materials for Sustainable Development
|
Presentation Title |
High Energy Sodium Ion Battery Materials for Low Temperature Applications |
Author(s) |
Tyler Roy, Sharon Gray, Lee Leonard, Jacqueline Johnson, Carol Putman |
On-Site Speaker (Planned) |
Tyler Roy |
Abstract Scope |
Rechargeable lithium-ion batteries are ubiquitous in our lives. Unfortunately, many of the resources required for the construction of lithium-ion batteries are limited. Sodium-ion batteries have been considered as a potential energy storage solution for space and Earth applications due to their potential for low-temperature operation, and the abundance of sodium on the earth, particularly NaFePO<sub>4</sub> as the active material since it involves only earth-abundant materials. This study investigates the effects of iron content on the properties of the Na-Fe-O-P cathode system in conjunction with a low-temperature stable electrolyte. Cathode materials were synthesized through a solid-state interdiffusion reaction by mixing precursors Na<sub>3</sub>PO<sub>4</sub>, FePO<sub>4</sub>, and Fe in a ball mill in an argon environment to create an amorphous, stochiometric material which was studied using XRD and Mössbauer spectroscopy. CR-2032 half-cells were assembled using commercial NaFePO<sub>4</sub> and galvanostatic electrochemical testing was performed to verify coin cell assembly procedures. |