Influence of Crystal Structure and Interparticle Contact on the Capacity of PbO2 Electrodes

Chemically prepared specimens of α‐ and were discharged in 1 m under defined conditions of mechanical compression. Various quantities of graphite were added to the specimens in order to study the influence of electric contact between particles. Electrodes of (having a high degree of structural disorder) presented a higher discharge efficiency than those of well crystallized . The capacity increased in the presence of graphite and with increasing Brunauer, Emmett, and Teller (BET) area. Graphite was found to suppress the diffusion potential in the layer and to permit extended discharge at a second voltage plateau, due to the reaction .