Li metal is regarded as the most promising anode for lithium-based batteries due to its extremely high theoretical capacity and the lowest working potential. However, dendrite caused by uneven Li deposition inhibits its practical application. Here we propose a new concept of utilizing amorphous metallic nucleation seeds to induce the uniform deposition of Li. Amorphous 3 °C liquid metal coated on MXene framework is selected as an example for deep investigation. The results indicate that amorphous liquid metal nucleation seeds are stable against MXene and can induce isotropic nucleation and uniform growth of Li. The Coulombic efficiency and performance of symmetric cells are obviously improved both in ether-based and carbonate-based electrolyte under the regulation of amorphous liquid metal seeds. Full lithium metal cells with LiFePO₄ and crumpled MXene nanosheet encapsulated LiMn₂O₄ cathodes also exhibit better electrochemical performance after modification. Additionally, the concept may be useful for developing other metal based anodes.

锂金属由于其极高的理论容量和最低的工作潜力而被认为是锂基电池最有希望的阳极。然而，由不均匀的锂沉积引起的枝晶阻碍了其实际应用。在这里，我们提出了利用非晶态金属成核晶种诱导Li均匀沉积的新概念。选择在MXene框架上涂覆的3°C非晶态液态金属作为深入研究的示例。结果表明，非晶态液态金属成核晶种对MXene稳定，可以诱导各向同性成核和Li的均匀生长。在无定形液态金属晶种的调节下，醚基和碳酸盐基电解质的库仑效率和对称电池性能均得到明显改善。含LiFePO的全锂金属电池_图4和皱缩的MXene纳米片封装的LiMn ₂ O ₄阴极在改性后也表现出更好的电化学性能。另外，该概念对于开发其他基于金属的阳极可能是有用的。