Advances in Sodium-Ion Battery Technology: Enhancing Energy Density for Future Applications
DOI:
https://doi.org/10.54097/62wswy20Keywords:
Sodium-ion battery; anode material; cathode material; electrolyte.Abstract
Achieving high energy density in sodium-ion batteries (SIBs) is crucial for advancing their potential as a substitute for lithium-ion batteries, particularly in large-scale energy storage systems. However, the development of SIBs faces several challenges, including limitations in cathode and anode materials, issues with dendrite formation, low ionic conductivity, and significant electrolyte volume expansion. These barriers directly impact the energy density and overall performance of SIBs. Current research has concentrated on producing cutting-edge anode materials like hard carbon and optimizing cathode materials like layered oxides and polyanionic compounds in order to get over these restrictions. Additionally, advancements in electrolyte formulations are crucial to ensure greater stability and ionic mobility. Emerging technologies, including the use of nanostructured materials and novel cell architectures, have also been explored as potential solutions to enhance energy density. This paper synthesizes these advancements and evaluates the pathways to improving cycle stability, minimizing volumetric changes, and enhancing safety features. With continued research, SIBs could become a key component in future sustainable energy storage solutions, offering cost-effective and high-performance alternatives to existing technologies.
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