| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
| Presentation Title |
Controversial Role of Crystal Water of Transition Metal Oxalates on Lithium Storage Behavior |
| Author(s) |
Keqi Chen, Keyu Zhang, Rui Yan, Guangping Zi, Minghao Ye, Yanmei Miu, Junxiao Chen, Bin Yang, Yaochun Yao |
| On-Site Speaker (Planned) |
Keyu Zhang |
| Abstract Scope |
Based on the special three-dimensional interlayered frame, transition metal oxalates (TMOxs) exhibit excellent lithium storage ability. However, the inevitable introduction of crystal water during preparation and difficulty in obtaining 100% anhydrous material limit their commercial application. Herein, in view of he discrepancy of solubility products (Ksp), we fabricated the hydrated TMOxs with various morphologies by a simple solvothermal process. Owning to the diverse catalytic of metal and various interlayer state of crystal water, CuC2O4·xH2O exhibits higher electrochemical activity and better reversibility special capacity of 638 mAh g-1 after 100 cycles under 0.5 A g-1. Furthermore, the crystal waters in TMOxs show electrochemical and structure stability, except CuC2O4·xH2O which can react with Li+ to forme copper derivatives (Cu, CuO, Cu2O et al.). This work provides a novel and systematic point for TMOxs anode materials to understand the beneficial and disadvantageous role of crystal water on lithium storage. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, |