Sodium-Ion Battery Advances and Future

These sources discuss the historical challenges of sodium-ion batteries, primarily the larger size of sodium ions compared to lithium, which caused structural strain, faster electrode degradation, and reduced efficiency. However, recent technological advancements, notably by CATL, are addressing these issues through innovative electrode materials and optimized battery designs. While sodium-ion batteries may not entirely replace lithium-ion batteries for high-performance applications due to slightly lower energy density, their abundance, lower cost, and improved durability make them a promising and competitive alternative for various other uses, demonstrating significant progress in overcoming previous limitations.