▎ 摘　　要

NOVELTY - High molecular polymer, comprises main chain of aromatic hydrocarbons, where aromatic hydrocarbons are polymerized from aromatic monomers and polyethylene glycol is connected to the aromatic monomers as side chains. USE - The high molecular polymer is useful in solid-state battery as power supply for electric device (all claimed). ADVANTAGE - The high molecular polymer: has excellent conductivity and ion-conducting properties; can solve problem of slow ion/electronic conductivity of existing battery anode material, which results in low loading of anode active material and low battery energy density. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: 1. preparation of high molecular polymer, comprising reacting ethylene oxide and ethylene glycol under catalyst conditions to obtain polyethylene glycol, subjecting polyethylene glycol and halogenated aromatic hydrocarbons to substitution reaction to obtain polyethylene glycol-aromatic hydrocarbons and subjecting to self-aggregation of polyethylene glycol-aromatic hydrocarbons under certain conditions to obtain final product; 2. solid-state battery, comprising anode sheet, the anode sheet comprises anode material layer including high molecular polymer; and 3. electric device, comprising solid-state battery as power supply for the electric device.