Designing selective membranes for batteries using a drug discovery toolbox
Membranes that allow certain molecules to quickly pass through while blocking others are key enablers for energy technologies from batteries and fuel cells to resource refinement and water purification. For example, membranes in a battery separating the two terminals help to prevent short circuits, while also allowing the transport of charged particles, or ions, needed to maintain the flow of electricity.
The most selective membranes - those with very specific criteria for what may pass through - suffer from low permeability for the working ion in the battery, which limits the battery's power and energy efficiency. ...













