About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
Presentation Title |
Fast-charging Aluminum-chalcogen Batteries Resistant to Dendritic Shorting |
Author(s) |
Donald R. Sadoway |
On-Site Speaker (Planned) |
Donald R. Sadoway |
Abstract Scope |
Announcing a rechargeable aluminum-chalcogen battery operating with a molten salt electrolyte composed of NaCl-KCl-AlCl3. This chemistry is distinguished from other aluminium batteries in the choice of positive elemental chalcogen electrode as opposed to various low-capacity compound formulations, and in the choice of a molten salt electrolyte as opposed to room-temperature ionic liquids. The multi-step conversion pathway between aluminum and chalcogen allows rapid charging at up to 200C while the battery endures hundreds of cycles at very high charging rates without dendrite formation. The cell-level cost of the aluminum-sulfur battery is projected to be less than 1/6 that of current Li-ion technologies. Composed of earth-abundant elements that can be ethically sourced and operating at moderately elevated temperatures just above the boiling point of water, this chemistry has all the requisites of a low-cost, rechargeable, fire-resistant, recyclable battery. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Aluminum, Sustainability |