As the global community confronts the pressing challenges of climate change, the urgency to transition to renewable energy sources becomes increasingly evident. A critical aspect of this transition involves coupling energy storage systems with renewable energy production, to address intermittency issues associated with it. However, the reliance on lithium-ion batteries (LIBs) poses significant challenges due to concerns regarding lithium scarcity, environmental impact, and escalating raw material costs. Potassium-ion batteries (KIBs) have emerged as a promising alternative to address these challenges. Potassium is abundant in nature, comprising approximately 2.6% of the Earth's crust, and its standard electrode potential (-2.93 V) is the closest to that of lithium, making KIBs an attractive option for sustainable energy storage solutions.