The Future of Aqueous Batteries: Harnessing Hydrogen Bonds for High Performance
By Quantum Server Networks | July 2025 Aqueous batteries have long been hailed as safer alternatives to lithium-ion systems thanks to their water-based electrolytes. However, their adoption has been limited by lower energy densities—until now. A breakthrough study led by Prof. Pan Feng at Peking University reveals how hydrogen-bond network engineering can unlock faster charging, higher capacities, and safer batteries for a sustainable energy future. Protons: The Ideal Charge Carrier Unlike lithium (Li⁺) or sodium (Na⁺), protons (H⁺) are light and highly mobile. They move through materials not by simple diffusion but via a Grotthuss-type mechanism , hopping across hydrogen bonds at lightning speed. This ultra-fast “diffusion-free” transport makes protons promising candidates for next-generation aqueous batteries. Published in Matter , the study titled "Proton storage and transfer in aqueous batteries" delves into how protons interact with hydrogen bonds, revealing ...