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Abstract Though lithium‐ion batteries (LIBs) are prevalent, the scarcity and uneven distribution of lithium resources have driven the search for complementary battery technologies. Potassium‐ion batteries (PIBs) have emerged as a promising contender in this quest due to their low‐cost, abundant resources, and potentially high voltage. The frequency of battery‐related accidents in recent years has heightened concerns about battery safety. The electrolyte, as a critical component of batteries, plays a pivotal role in determining safety, as it is directly linked to the formation of the solid electrolyte interphase (SEI), which is crucial for battery stability and security. Initially, enhancing battery safety often came at the cost of performance. However, thanks to the relentless efforts and in‐depth research, it is now possible to improve performance without compromising safety. This article provides an overview of organic electrolyte systems and introduces some state‐of‐the‐art electrolyte formulations, aiming to offer guidance on enhancing the safety and stability of PIBs.
Xu et al. (Fri,) studied this question.