设计制备结构稳定、高能量密度的无枝晶柔性可拉伸金属电极对实现低成本、高能量密度、长循环寿命深空探测器具有重要意义。液态钠钾合金电极具有高能量密度、无枝晶等特性，但其在受外力作用下容易从基底材料内溢出导致性能急速衰退。针对上述问题，本项目通过液态钠钾合金与纳米颗粒的反应构建粘稠的非牛顿流体态钠钾合金，并可涂在各种基底上形成稳定二维电极。系统研究非牛顿流体态钠钾合金的微观结构与纳米颗粒种类的关系，揭示非牛顿流体态钠钾合金的形成机理，并阐明钠钾合金物理形态转变规律。分析研究非牛顿流体态钠钾合金在基底材料上的结合力、表面张力、柔性、延展性及其电化学储能性能的影响关系，建立扭转和拉伸条件下钠钾合金电极/电解液界面稳定性与钠钾合金物理形态转变的内在关联机制，为无枝晶碱金属二次电池负极材料的构建提供理论基础和实验依据。

Design and preparation of dendrite-free flexible stretchable metal electrodes with a stable structure and high energy density are of great significance to the realization of low cost, high energy density and long cycle life deep space probe. Liquid Na-K alloy electrode has the characteristics of high energy density and dendrite-free properties, but it is easy to overflow from the base material under the action of external force, which leads to rapid degradation of its performance. To solve the above problems, this project builds a viscous non-Newtonian fluid form Na-K alloy through the reaction between liquid Na-K alloy and nano-particles, which can be painted on various substrates to form stable 2D electrodes. Systematic study the relationship between the nanoparticles with different types and the microstructure of non-Newtonian fluid form Na-K alloy to revealing the formation mechanism of non-Newtonian fluid form Na-K alloy. And clarify the physical morphological transformation of Na-K alloy. Study the effects of non-Newtonian fluid form Na-K alloy in the adhesion strength on the base material, surface tension, flexible, ductility and the relationship between the influence of electrochemical energy storage performance, set up under the condition of torsion and tension of Na-K alloy electrode & electrolyte interface stability and the internal connection of Na-K alloy physical morphology change mechanism, which will provides theoretical basis and experimental basis for the construction of dendrite-free metal secondary battery anode.