Solid-state electrolyte of lithium battery, preparation method of solid-state electrolyte, electrolytic film and application of electrolytic film

• Main Authors: ZHU SHENGWEN, LIU YONGFEI, ZHOU BINGQIAN, LIU AIFANG, LI LEI
• Format: Patent
• Language: Chinese; English
• Published: 02.11.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a solid-state electrolyte material of a lithium battery, an electrolyte film and preparation and application of an all-solid-state lithium battery comprising the solid-state electrolyte material and the electrolyte film. The solid-state electrolyte material is an organic-inorganic hybrid polymerization material and comprises an organic-inorganic hybrid material matrix, an inorganic nanometer filler and a lithium salt, wherein the hybrid material matrix is prepared by cross-linking reaction of a precursor such as a metal/non-metal alkoxide (or a metal inorganic salt) andpolyethylene oxide after hydrolysis under a certain condition, the inorganic nanometer filler is mixed and added by a physical mode and is used as a rigid constituent, and the mechanical property ofthe electrolyte material is ensured. The thickness of the electrolyte thin film is 5-500 micrometers the ion conductivity is (1*10<-4>-1*10<-3>)S/cm at 60 DEG C, and the electrochemical window is larger than 5.0V. The all-soli