Preparation method of lithium cobaltate electrolyte for inhibiting lithium dendrite growth

The invention relates to a preparation method of a lithium cobaltate electrolyte for inhibiting lithium dendrite growth, the method is simple and easy to operate, low in cost and short in time; according to the method, an inorganic electrolyte excellent in electrochemical performances can be obtained by doping of Nb ions in a positive electrode material and isomorphous substitution of Co ion sitesin lattices of the positive electrode material to change parameters of the lattices; and a light carbon-nitrogen polymer as a filler is uniformly mixed with the electrolyte to form a solid electrolyte which can be used for suppression of lithium dendrite growth in lithium metal batteries. 本发明涉及种抑制锂枝晶生长钴酸锂电解质的制备方法，所述方法简单易操作，成本低，耗时短，所述方法在正极材料中掺杂Nb离子，对正极材料晶格中的Co离子位点进行同晶取代，改变晶格参数，获得电化学性能优良的无机电解质；本发明中以轻质碳氮聚合物作为填充剂，与电解质均匀混合，形成固态电解质，可用于抑制锂金属电池中枝晶的生长。