Preparation method of gel polyelectrolyte diaphragm and application thereof in lithium ion battery

The invention discloses a preparation method of a gel polyelectrolyte diaphragm. The preparation method comprises the following steps: step A, preparation of a gel polymer electrolyte precursor solution; step B, preparation of a gel polymer electrolyte; and step C, preparation of the gel polyelectrolyte diaphragm. The preparation method has the advantages that double surfaces of the gel polyelectrolyte diaphragm prepared in the invention are protected by release films so that the gel polyelectrolyte diaphragm is applicable for various machining processes such as die cutting and splitting and is beneficial for high-efficiency industrial production; according to the gel polyelectrolyte diaphragm, a prepared battery does not need a diaphragm nor the process such as liquid and gel injection, so that the assembling technology of the gel polyelectrolyte diaphragm battery is simplified, and the production efficiency is improved. 本发明公开了种凝胶聚合电解质膜片的制备方法，制备方法包括以下步骤：步骤A凝胶聚合物电解质前驱液的制备；步骤B凝胶聚合物电解质的配制；步骤C凝胶聚合电解质膜片的制备。优点是：本发