Novel Structured Electrolyte for All-Solid-State Lithium Ion Batteries

In this study, a multi-layer structure solid electrolyte (SE) for all-solid-state electrolyte lithium ion batteries (ASSLIBs) was fabricated and characterized. The SE was fabricated by laminating ceramic electrolyte Li_1.3Al_0.3Ti_1.7(PO₄)₃ (LATP) with polymer (PEO)₁₀-Li(N(CF₃SO₂)₂ electrolyte and gel-polymer electrolyte of PVdF-HFP/ Li(N(CF₃SO₂)₂. It is shown that the interfacial resistance is generated by poor contact at the interface of the solid electrolytes. The lamination protocol, material selection and fabrication method play a key role in the fabrication process of practical multi-layer SEs.