Flexible polymer electrolyte silicon integrated electrode and preparation method and application thereof

The invention provides a flexible polymer electrolyte silicon integrated electrode. The polymer electrolyte silicon integrated electrode comprises a silicon electrode and a polymer electrolyte, wherein the raw materials of the silicon electrode comprise silicon powder, carbon black and an anionic binder; the polymer electrolyte is prepared from the following raw materials: polyvinylidene fluoride-hexafluoropropylene, lithium bis (trifluoromethylsulfonyl) imide and polyoxyethylene. High-flexibility polymer electrolyte and a silicon electrode with a rich porous structure are used, and a unique electrode/electrolyte integrated structure is constructed by improving an electrode preparation process and a composite process of the electrode and the polymer electrolyte. The prepared polymer electrolyte silicon integrated electrode has excellent ionic conductivity, high capacity and good cycle stability, simplifies the solid-state battery assembly process, reduces the experiment cost, and has important significance in