| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management Symposium
|
| Presentation Title |
Achieving Controlled Surface Roughness of Ultra-thin Al Foils as Current Collector |
| Author(s) |
Lihong Su |
| On-Site Speaker (Planned) |
Lihong Su |
| Abstract Scope |
Al foils with thicknesses of a few microns are usually used as the current collector in the cathode electrode in lithium-ion batteries. In this research, ultra-thin Al foils with thicknesses down to ~ 1 micron were prepared using clad rolling method by placing Al foil in the core. The surface roughness of the foils was in the range of 0.1 to 0.5 microns and was achieved by using different clad materials. The adhesion ability of the Al foils were examined by interfacial shear tests of graphite coated foils and the results showed that the foils with larger roughness resulted in higher shear stress. Charge/discharge cyclic tests were used for investigating the properties of the Al foils as current collectors and the results showed that the capacity stability of the Al foils with larger surface roughness is better than the ones with smaller surface roughness. |
| Proceedings Inclusion? |
Planned: |