This research investigates zinc batteries as a safer, cheaper alternative to lithium batteries. By studying the microscopic passive layer formed between zinc and electrolyte, it identifies mechanisms that improve performance and prevent failure. The work aims to enable more reliable, ethical, and fire-safe energy storage technologies through detailed materials analysis.

This research improves the lifespan of sodium-metal batteries, a cheaper and greener alternative to lithium-ion cells for renewable energy storage. By replacing copper with zinc as the supporting material, sodium forms smooth, stable deposits, extending battery life 15-fold. This innovation could deliver affordable, sustainable grid-scale energy storage.