Copper metal electrode reversibly hosts fluoride in a 16 m KF aqueous electrolyte
Copper metal electrode reversibly hosts fluoride in a 16 m KF aqueous electrolyte
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铜金属电极在 16 m KF 水性电解质中可逆地容纳氟化物
DOI：
10.1039/d2cc02978b
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发表时间：
2022
影响因子：
4.9
通讯作者：
Ji, Xiulei
中科院分区：
文献类型：
--
作者：
Gallagher, Trenton C.;Sandstrom, Sean K.;Wu, Che-Yu;Stickle, William;Fulkerson, Calvin R.;Hagglund, Lindsey;Ji, Xiulei
氟化物具有荷质比高、半径小等优点，是一种很有前途的电池电荷载体。在这里，我们报告了商业铜粉在16 m KF的饱和电解质中表现出高达222 mA h g−1的可逆容量。该电解质抑制了带电产物CuF2的溶解。此外，包含在Cu电极中的KF固体促进高初始容量。我们的研究结果展示了使用铜作为电极的水性氟化物电池的潜力。
Fluoride is a promising charge carrier for batteries due to its high charge/mass ratio and small radius. Here, we report commercial copper powder exhibits a reversible capacity of up to 222 mA h g−1 in a saturated electrolyte of 16 m KF. This electrolyte suppresses dissolution of CuF2, the charged product. Furthermore, the KF solid comprised in the Cu electrode facilitates a high initial capacity. Our results showcase the potential of aqueous fluoride batteries using copper as an electrode.