Relationship of cathode pore-size distribution and rated capacity in Li/MnO2 cells

Abstract An improved MnO 2 cathode has been evaluated. It was found that the high porosity and the pore-size distribution (macropores with a diameter > 2000 A representing >25% of the total pore volume) of the electrode are two determinant factors in performing a high (80%) utilization of the Li/MnO 2 at high discharge rate.