Conjugated microporous polymers as promising alternatives to traditional electrodes in alkali metal ion batteries

•CMPs as electrodes for alkali ion batteries are summarized.•Electrochemical performance and mechanisms of CMP electrodes are illuminated.•Rational design and utilization of CMP electrodes are suggested. Finding sustainable energy sources is crucial owing to the current energy constraints and the pressing issue of climate change. Conjugated microporous polymers (CMPs), which emerged in 2007, play a significant role in this quest. These polymers feature extensive π-conjugated and microporous structures while providing them a remarkable versatility. CMPs are particularly effective as cathode and anode materials in lithium-ion, sodium-ion, and potassium-ion batteries due to their large surface areas and sophisticated charge storage capabilities. Their ability to be tailored for specific functions through modification of their structure enhances their effectiveness in various fields especially in energy storage. This review explores the main challenges associated with CMP-based electrodes in energy storage systems and proposes strategies to address these obstacles. By integrating practical data and theoretical perspectives, it aims to foster discussion and drive innovation in the field of sustainable energy storage solutions. The ultimate goal is to enhance the performance and efficiency of energy storage technologies, contributing to a more sustainable future.