Sodium citrate as a self-sacrificial sodium compensation additive for sodium-ion batteries
2021
Zhang, Rui | Tang, Zheng | Sun, Dan | Li, Ruiyi | Yang, Wenhao | Zhou, Siyu | Xie, Zhiyong | Tang, Yougen | Wang, Haiyan
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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