About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
Presentation Title |
Aluminum-Anodes for Metal-Air-Batteries |
Author(s) |
Janne Max Heydrich-Bodensieck, Sören Müller |
On-Site Speaker (Planned) |
Janne Max Heydrich-Bodensieck |
Abstract Scope |
Light-Metal-Air-Batteries are a promising alternative to Lithium-Ion-Batteries. The theoretical specific energy density of aluminum at 8000 Wh/kg passes over 600 Wh/kg of Lithium-Ion-Batteries, significantly. Aluminum offers the second highest metal deposit in the Earth’s crust. A low density of 2,7g/cm³ offers further potential for weight reduction. The major challenges with Aluminum-Air-Batteries are the unwanted development of a passivating oxide layer on the anodes surface and the “Parrasitic Corrosion”, a hydrogen evolution caused by free electrons released by corrosion. Research works have shown, that a reduction of an anode’s grain size will achieve a higher energy density and a lower hydrogen evolution. In addition, a 3-D-surface-structured anode provides a bigger active surface, and therefore a higher performance. Extrusion was chosen as a well-known process meeting the potential of a production at industrial scale. Al-Anodes manufactured from cast (Al 99,8%), extruded (Al 99,8%) and foam (Al 99,5%) were compared in corrosion- and battery-performance-tests. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Energy Conversion and Storage, Sustainability |