1results about How to "With self-healing function" patented technology

This invention provides a sulfide electrolyte for low-temperature all-solid-state sodium-sulfur batteries and its preparation method. The sulfide electrolyte comprises a sulfide electrolyte Na3PS4 and a solid electrolyte interfacial film forming agent CuF2-NaNO3, with the CuF2-NaNO3 distributed on the surface of the Na3PS4 particles. The preparation method specifically includes: S1, preparation of the solid electrolyte Na3PS4; S2, preparation of the Na3PS4-CuF2-NaNO3 composite electrolyte. This low-temperature all-solid-state sodium-sulfur battery sulfide electrolyte and its preparation method can solve the problems of instability of sulfide electrolytes to metal anodes and sodium dendrite growth, without reducing the ionic conductivity of the electrolyte. Furthermore, this electrolyte has a self-healing function.