Controllable lithium-free negative electrode and preparation method thereof

The invention discloses a controllable lithium-free negative electrode and a preparation method thereof. One or more of metals with good conductivity are compounded to form an alloy, and meanwhile, a non-metallic material is added into the alloy to regulate and control the mechanical property of the alloy and active sites of lithium ions. Therefore, the ratio of the current collector to the inactive substance in the battery system can be solved, so that the energy density of the whole battery system is improved; meanwhile, lithium ions can be uniformly deposited, so that the growth of lithium dendrites is reduced, and the cycling stability of the lithium dendrites is improved. 本发明公开了一种可调控的无锂负极及其制备方法，通过将良好导电性的金属中的一种或多种进行复合形成合金，同时利用非金属材料加入其中调控其机械性能以及锂离子的活性位点。这样既能解决集流体在电池体系中占据非活性物质的占比，来提升整个电池系统的能量密度；同时，又能使得锂离子能够均匀的沉积，从而减少锂枝晶的生长，提升其循环稳定性。