(EN) The invention relates to the technical field of lithium batteries, and particularly relates to a multiphase electrolyte film for a solid-state battery, a preparation method of the multiphase electrolyte film and an all-solid-state lithium battery. The multiphase electrolyte film for the solid-state battery comprises at least two solid electrolyte single-layer diaphragms, and each solid electrolytesingle-layer diaphragm is prepared from the following raw materials in parts by weight: 30%-70% of solid electrolyte particles, 8%-15% of a binder, 4%-12% of a plasticizer, 0.2%-2% of a dispersing agent and 17.8%-41% of a solvent. And the solid electrolyte particles are lithium-containing active fast ion conductors or inert inorganic nonmetals. The preparation method comprises the following steps: S1, preparing a slurry; S2, carrying out slurry forming; S3, casting to form a film; S4, mixing and laminating; S5, carrying out hot pressing; and S6, carrying out degreasing heat treatment. The multiphase electrolyte film for the solid-state battery can be used for an all-solid-state lithium battery and has the advantage of high mechanical strength; and in addition, the preparation method disclosed by the invention has the advantages of a simple process and convenience in industrial mass production.
(ZH) 本发明涉及一种锂电池技术领域，特别涉及一种固态电池用复相电解质薄膜及其制备方法以及全固态锂电池。一种固态电池用复相电解质薄膜，包括至少两种固体电解质单层膜片，固体电解质单层膜片由包含以下重量份的原料制成：固体电解质颗30%‑70%、粘结剂8%‑15%、增塑剂4%‑12%、分散剂0.2%‑2%、溶剂17.8%‑41%；固体电解质颗粒为含锂活性快离子导体或惰性无机非金属。制备方法为：包括以下步骤：S1预制浆料；S2浆料成型；S3流延成膜；S4混合叠层；S5热压；S6脱脂热处理；本发明的固态电池用复相电解质薄膜可用于全固态锂电池，其具有机械强度高的优点；另外，本发明的制备方法具有工序简单，便于工业量化生产的优点。
