About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
Presentation Title |
Enhancement of the electrochemical performance of LiFePO4 cathode material by nanosecond laser annealing |
Author(s) |
Siba Sundar Sahoo, Jagdish Narayan, Xiao-Guang Sun, Parans Paranthaman, Roger Narayan |
On-Site Speaker (Planned) |
Siba Sundar Sahoo |
Abstract Scope |
LiFePO4 is a relatively inexpensive LIB cathode material but lacks in power compared to others. Its stable olivine structure allows for good cycling, thermal stability, and smooth operating voltage [3.45 V (versus Li/Li+)]. In this work, we have implemented pulsed laser annealing (PLA) to create oxygen vacancies, which can lead to higher electrical conductivity in the material. Additionally, PLA can also impart nanostructuring, LiF coating, and surface binder removal, which can improve the battery performance of LIBs. Previous works have implemented PLA to improve the cyclability and energy densities of graphite anodes, NMC cathodes, and LNMO cathodes for LIBs. Optimized defect engineering and microstructural modifications achieved in this study provided an increase in the capacities of pristine LFP from 135 mAh/g to 145 mAh/g |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Surface Modification and Coatings, |