Sodium-ion batteries have advantages over the wide-spread lithium-ion batteries with regard to cost and kinetics. However, low cycling stability is still a common problem for many electrode materials. Thus, identification of suitable materials and understanding of the respective charge-storage mechanisms are necessary. This work presents investigations on vanadium-based electrode materials in sodium-ion batteries. Reasons for the observed decrease in capacity during cycling are identified and successful strategies to improve cycling stability are presented.
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Sodium-ion batteries have advantages over the wide-spread lithium-ion batteries with regard to cost and kinetics. However, low cycling stability is still a common problem for many electrode materials. Thus, identification of suitable materials and understanding of the respective charge-storage mechanisms are necessary. This work presents investigations on vanadium-based electrode materials in sodium-ion batteries. Reasons for the observed decrease in capacity during cycling are identified and su...
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