Advances in Electrode Materials for High-Performance Sodium-Ion Batteries: Challenges and Future Prospects

Energy storage is crucial for modern technology, especially with the increasing reliance on renewable energy sources. While lithium-ion batteries (LIBs) dominate the market due to their high energy density, long cycle life, and widespread application, the growing scarcity and rising cost of lithium are driving the exploration of alternative materials. Sodium-ion batteries (SIBs) have emerged as a highly promising solution, offering significant advantages in terms of cost-effectiveness, abundance of sodium resources, and environmental sustainability. This review provides an in-depth examination of the working principles of SIBs, comparing their performance with LIBs and analyzing their potential in large-scale energy storage applications, including grid-level and stationary systems. Recent progress in the development of advanced cathode and anode materials is thoroughly discussed, with a particular focus on overcoming existing limitations related to energy density, cycle stability, and efficiency. Furthermore, the review addresses the prospects for SIB commercialization, along with the technical and economic challenges that remain. With continued material innovations and research, SIBs could play a vital role in creating sustainable and scalable energy storage solutions.