An important aspect in the design of the battery is the particle size, particle size distribution and particle shape of the materials used within the electrodes. Small particle size electrodes increase the rate of electrochemical reactions due to their larger surface area, which is favorable in terms of power production. Energy storage capacity and electrolyte mobility on the other hand is related to porosity, which is influenced by particle size and particle shape distribution, with larger particle sizes generally favored.

To meet the conflicting requirements for both power and storage capacity, it is necessary to optimize both particle size distribution and shape. Analytical methods such as image analysis and laser diffraction enable detailed characterization of battery component materials in terms of their particle size and shape. This presentation will outline how such information can be applied to reveal fundamental links between these parameters and final battery performance.