Preparation method of lithium metal negative electrode, lithium metal negative electrode plate and battery

The invention discloses a preparation method of a lithium metal negative electrode, a lithium metal negative electrode plate and a battery, the preparation method comprises the following steps: firstly, carbonizing a binder through high temperature, so that an enough space for storing lithium is provided, huge expansion is not caused, and an organic solvent is volatilized; then the lithium-loving material is added, so that metal lithium can be guided to be deposited uniformly and compactly, and lithium dendrites cannot be quickly formed to influence the safety performance; and moreover, welding on the negative electrode current collector cannot be fused due to carbonization, so that the obtained lithium metal negative electrode has obviously improved cycle performance, and is convenient for industrial batch production and use. 本发明公开了一种锂金属负极的制备方法、锂金属负极片及电池，制备方法包括先通过高温将粘结剂碳化，有足够的储存锂的空间，不会引起巨大的膨胀，有机溶剂则会挥发；再加入亲锂性材料，可以引导金属锂沉积得均匀致密，不会导致锂枝晶快速形成，影响安全性能；并且在负极集流体上进行焊接不会因碳化而熔融，从而得到的锂金属负极具有明显的提高的循环性能，以及便于工业化批量生产与使用。