In fact, the LiBH 4 RT-polymorph has an orthorhombic unit cell, space group (s.g.) Pnma, showing low Li-ion conductivity (10 –8 S cm –1), while around 110 ☌, 8 it shows a polymorphic orthorhombic-to-hexagonal (s.g. To a remarkable ionic conductivity (σ) above 120 ☌, combined (LiBH 4) has been extensively studied as an SSE, thanks Temperature (RT), a negligible electronic conductivity, and a wideĭifferent classes of materials have been proposed as SSEs, among In an all-solid-state battery (SSB), such as a Li-ion conductivity An SSE must fulfill several requirements to be employed 5, 6 The improved safety naturally comes from the solid nature of theĮlectrolyte. Stability allows the use of metallic lithium as a negative electrode. To their intrinsic stiffness, which makes them less prone to dendrite SSEs can overcome these hindrances or bottleneck limitations, thanks Limit the cell energy density and require major safety precautions. With lithium metal anodes, and flammability. (due to the uneven Li plating resulting in shortcuts) and reactivity LIBs, such as the low cation transference number, the incompatibility Limitations of the organic liquid electrolyte currently employed in Solid-stateĮlectrolytes (SSEs) are promising candidates for resolving the intrinsic Play a major role in the fast-growing electro-mobility market. Batteries (LIBs) are widely used in portable devices and
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