Scaly MoS/rGO Composite as an Anode Material for High-Performance Potassium-Ion Battery.

Potassium-ion batteries (PIBs) have been widely studied owing to the abundant reserves, widespread distribution, and easy extraction of potassium (K) resources. Molybdenum disulfide (MoS) has received a great deal of attention as a key anode material for PIBs owing to its two-dimensional diffusion channels for K ions. However, due to its poor electronic conductivity and the huge influence of embedded K ions (with a large ionic radius of 3.