Polymer electrolyte prepolymerization liquid, polymer electrolyte and electrochemical device

The invention relates to a polymer electrolyte prepolymerization solution, a polymer electrolyte and an electrochemical device, the polymer electrolyte prepolymerization solution comprises a monomer and an electrolyte, the monomer forms a polymer molecular chain through free radical polymerization, and the polymer molecular chain is crosslinked to form the polymer electrolyte with a three-dimensional network structure; the electrolyte comprises an organic solvent, has high fluidity, can permeate into electrode pores, promotes interface contact between the polymer electrolyte and the electrode, improves the interface wettability between the polymer electrolyte and the electrode, can improve the ionic conductivity, promotes lithium ion transmission, and improves the electrochemical performance of the battery. 本申请涉及聚合物电解质预聚液、聚合物电解质及电化学装置，聚合物电解质预聚液包括单体及电解液，单体通过自由基聚合形成聚合物分子链，聚合物分子交联形成三维网络结构聚合物电解质；电解液中包括有机溶剂，流动性较强，能渗透进电极孔隙中，促进聚合物电解质与电极之间的界面接触，提高聚合物电解质与电极之间界面浸润性，能够提高离子电导率，促进锂离子传输，提升电池的电化学性能。