High-temperature solid-state electrochemical synthesis of ammonia is a promising route for clean, sustainable and on-demand small-scale production of ammonia with lower energy consumption compared to the conventional Haber-Bosch process. Despite of its significant potential, there are still many aspects of this process that remain unexplored. In this mini-review article, the literature on high-temperature solid-state electrochemical ammonia production was summarized, the current state of the process was discussed and the necessary steps that should be taken to move the solid-state electrochemical ammonia synthesis concept forward were discussed while addressing the current issues and concerns. (C) 2020 Elsevier Inc. All rights reserved.