Electrodeposition of the NaK Alloy with a Liquid Organic Electrolyte
Electrodeposition of the NaK Alloy with a Liquid Organic Electrolyte
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DOI：
10.1021/acsaem.9b00311
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发表时间：
2019-04
影响因子：
6.4
通讯作者：
R. Rodriguez;Ruth A. Edison;A. Heller;C. Mullins
中科院分区：
文献类型：
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作者：
R. Rodriguez;Ruth A. Edison;A. Heller;C. Mullins
钠钾合金最近被提出作为液态金属电池的阳极材料，因为它们可以在室温下形成多种成分的液相。本研究通过原位光学成像揭示了该NaK合金的电沉积形貌。我们报告了NaK合金在液体有机电解质中的枝状沉积，类似于固体钠阳极。然而，当钠沉积在富钾合金上时，枝晶的形成大大减轻，但不能阻止。
Sodium–potassium alloys have recently been proposed as anode materials for liquid metal batteries because they can form a liquid phase at room temperature for a wide range of compositions. In this work, the electrodeposition morphology of this NaK alloy is revealed through in situ optical imaging. We report that the NaK alloy deposits dendritically akin to solid sodium anodes in liquid organic electrolytes. However, when sodium is deposited on a potassium-rich alloy, dendrite formation is greatly mitigated but not prevented.