Role of Ether-Based Electrolytes in Enhancing Potential of Potassium-ion Batteries

Potassium-ion batteries are a promising advancement in secondary batteries, offering the potential to surpass even sodium-ion batteries in replacing lithium-ion batteries. Although the technology has the potential for high energy density, unresolved technical difficulties pose a challenge. Fortunately, progress is made in improving electrode materials, with studies demonstrating that controlling the fundamental cause of electrolyte degradation can significantly enhance the performance of potassium-ion batteries. However, the ability of ether-based electrolytes to improve battery performance is overlooked despite their inherent characteristics. This work explores the role and principles of ether-based electrolytes in enhancing the potential of potassium-ion batteries, highlighting various controversies and prospects in this area arising from insufficient research. Potassium-ion batteries have the potential to replace lithium-ion batteries, although their development faces some challenges due to technical difficulties. The ether electrolyte has the ability to maximize the potential performance of potassium-ion batteries. In this review, ether electrolytes that activate potassium-ion batteries are discussed. image