Hybrid solid-liquid electrolyte lithium storage battery

Abstract

The present invention belongs to the technical field of solid-state lithium batteries, and particularly discloses a hybrid solid-liquid electrolyte lithium battery. The lithium battery includes a positive electrode plate, a negative electrode plate and a composite solid electrolyte sheet arranged between the positive electrode plate and the negative electrode plate, wherein the composite solid electrolyte sheet includes a solid electrolyte core layer and buffer adhesive layers arranged on both sides of the solid electrolyte core layer, wherein the solid electrolyte core layer is mainly formed by mixing a core layer inorganic solid electrolyte, an electrolyte polymer and an electrolyte additive, and the buffer adhesive layer mainly formed by mixing a buffer adhesive layer inorganic solid electrolyte, a buffer adhesive layer lithium salt and a buffer adhesive layer additive. The lithium battery of the present invention is prepared by combining coextrusion technology and rolling technology to achieve one-time processing and forming, which has the characteristics of a high production efficiency, and a simple operation, and the obtained lithium battery has relatively higher electric cycle performance and safety performance.