On August 26, all-solid-state batteries emerged as a pivotal technology for the next generation of energy storage solutions, distinguished by their enhanced safety features and potential for high energy density. However, the intricate dynamics of charge transport within solid-state electrodes pose a significant challenge. Specifically, the imbalance between ion and electron movement results in uneven electrochemical reactions and the formation of lithium concentration gradients, analogous to a "traffic jam" within the battery system. This phenomenon not only reduces the utilization efficiency of active materials but also accelerates performance degradation, thereby hindering advancements in both performance and practical applications. Addressing the global challenge of precisely observing and effectively managing this internal inhomogeneity has been a paramount concern in the field.