In situ monitoring of the Li-O_2 electrochemical reaction on nanoporous gold using electrochemical AFM

摘要

The lithium-oxygen (Li-O_2) electrochemical reaction on nanoporous gold (NPG) is observed using in situ atomic force microscopy (AFM) imaging coupled with potentiostatic measurement. Dense Li_2O_2 nano-particles form a film at 25 V, which is decomposed at 3.8-4.0 V in an ether-based electrolyte.