Sodium citrate as a self-sacrificial sodium compensation additive for sodium-ion batteries

Zhang, Rui; Tang, Zheng; Sun, Dan; Li, Ruiyi; Yang, Wenhao; Zhou, Siyu; Xie, Zhiyong; Tang, Yougen; Wang, Haiyan

Sodium citrate as a self-sacrificial sodium compensation additive for sodium-ion batteries

2021

Commercial sodium citrate is proposed as the self-sacrificial cathode additive for the first time to offset the initial sodium loss. The optimum additive can obviously increase the energy density of the as-constructed hard carbon//Na₃V₂(PO₄)₂F₃/rGO full-cell by 28.9% without sacrificing its other electrochemical properties, showing promising application prospects in sodium ion batteries.

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