In Situ Visualization of Ion Transport Processes in Aqueous Batteries

In this work, in situ visualization of ion transport in aqueous batteries is achieved by innovatively introducing laser scanning confocal microscopy. Taking neutral Zn−air batteries as an example and using a pH-sensitive probe, real-time dynamic pH changes associated with ion transport processes are observed during battery operation. The corrosion process of zinc electrodes and the ion transport characteristics near the air electrodes during the charge and discharge process are visualized and revealed. This method opens up a new approach of studying ion transport inside batteries, guiding the design for performance enhancement.

August 2024