Ga-Sn liquid metal material is demonstrated as a self-healing anode system due to its fluidity via operando synchrotron-based transmission X-ray microscopy and X-ray diffraction experiments. Cracks formed due to volume expansions can be recovered by the fluidity of the liquid metals. By incorporating with a poly(ethylene oxide) (PEO)-based electrolyte at 60 °C, the Ga-Sn anode shows a reversible lithium insertion and extraction process with a high initial discharge specific capacity of 682 mAh g ^− 1, followed by delivering a capacity of 462 mAh g ^− 1 in the second cycle at C/20 rate. Compared with its solid counterparts, the Ga-Sn liquid metal anode demonstrates a better capability to maintain its mechanical integrity and better contact with PEO solid electrolytes due to its advantageous features of the liquid. This study suggests a potential strategy to use liquid metal alloys with polymer solid electrolyte to solve the challenges in rechargeable lithium batteries.

Ga-Sn液态金属材料由于具有流动性，因此通过基于操作同步加速器的透射X射线显微镜和X射线衍射实验证明其具有自愈性。由于体积膨胀而形成的裂纹可以通过液态金属的流动性来恢复。通过用聚（环氧乙烷）将（PEO）在60℃下系电解质，镓-锡阳极示出了具有682毫安时具有高的初始放电比容量的可逆锂的插入和提取过程克 ^{-  1}，随后通过递送容量为462 mAh g  ^{−  1}在第二周期以C / 20速率 与固态固体相比，Ga-Sn液态金属阳极由于其液体的优越特性，具有更好的保持其机械完整性和与PEO固态电解质更好的接触的能力。这项研究提出了一种将液态金属合金与聚合物固体电解质一起使用的潜在策略，以解决可充电锂电池的挑战。