Solid electrolyte membrane, preparation method of solid electrolyte membrane, and lithium ion battery
A solid electrolyte membrane and electrolyte technology, applied in the manufacture of solid electrolytes, non-aqueous electrolyte batteries, electrolyte batteries, etc., can solve the problems of brittle and hard mechanical properties, difficult processing, no elasticity, etc., and achieve high ion conductivity, good The effect of processability
Inactive Publication Date: 2017-11-28
上海纳晓能源科技有限公司
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The invention discloses a solid electrolyte membrane, a preparation method of the solid electrolyte membrane, and a lithium ion battery. The solid electrolyte membrane is a material of a composite structure, wherein the material is formed by compounding lithium inorganic solid electrolyte and a polymer; a polymer with a continuous three-dimensional sponge network structure is filled with the lithium inorganic solid electrolyte; the primary particle size of the lithium inorganic solid electrolyte is 0.01-3 microns; the polymer has the continuous three-dimensional sponge network structure; the diameter of the polymer in the network structure is 0.002-0.5 micron; a weight ratio of the lithium inorganic solid electrolyte to the polymer is 70:30 to 95:5; the composite structure has pores; the size of each pore is 0.01-3 microns; a ratio of the pore volume to the volume of the whole composite material is 1-15%; the overall thickness of the composite material is 1-50 microns; and the tensile strength is higher than 10MPa. According to the solid electrolyte membrane disclosed by the invention, high ionic conductivity of the lithium inorganic solid electrolyte can be maintained, and excellent processability, mechanical property, corrosion resistance and oxidation resistance can be provided.
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Property | Measurement | Unit |
Particle size | 0.01 ~ 3.0 | µm |
Diameter | 0.002 ~ 0.5 | µm |
Size | 0.01 ~ 3.0 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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