inter-secondary particle, than are typically considered during positive electrode material calcination. Heterogeneity at these length scales is generally undesirable -more uniform reactions are easier to target with mechanistic modifications, and heterogeneities in positive electrode materials are amplified during electrochemical cycling. Future work could leverage or extend the SL-LMR pathway to achieve appropriate uniformity via a more efficient calcination profile, such as with a lower temperature or shorter hold at top temperature. Additionally, the initially distinct superstructure of the SL-LMR and LL-LMR case resulting in convergent electrochemical behavior suggests a design rule for modifications to calcination. In order to have a persistent impact on performance, the targeted material property should evolve facilely during calcination but be persistent through electrochemical cycling.