Effect of the concentration of carbon additive in graphite form in the macroporosity, apparent density and morphology of lead-acid battery plates

Abstract

Batteries are the most widely used energy storage devices. Thus, different alternatives have been studied as a way to improve the properties of these systems. The insertion of additives in the composition of the active material of lead-acid battery plates, has been considered as one of the alternatives to promote such improvement. Thus, the present work proposes to evaluate the influence of the insertion of carbon additives in the form of graphite on the morphology of lead-acid battery plates. In view of the results obtained, it is concluded that the macroporosity has an inversely proportional relationship with the apparent density and that the morphology and color of the material's surface are drastically modified with the increase of the graphite content.