Chelation-induced anti-Ostwald ripening: Ultrafine bismuth nanocrystals for ultrastable aqueous sodium storage

Proceedings of the National Academy of Sciences, Volume 122, Issue 37, September 2025.
SignificanceThe commercialization of bismuth-based aqueous sodium-ion batteries is hindered by severe volume expansion (>250%) of Bi anodes during cycling. Here, we address this challenge by introducing polyacrylic acid as a chelating agent into …