Chemistry Solid-state chemistry

Researchers succeed in developing a lithium sulfide cathode containing a solid electrolyte with high decomposition resistance, enabling the realization of all-solid-state lithium-sulfur batteries that exceed the energy density of lithium-ion batteries

Lithium ion batteries use liquid electrolytes that have several drawbacks, which can be overcome by all-solid-state lithium secondary batteries (ASSBs). However, it is important to find efficient electrode materials for ASSBs. A research team from Japan has recently developed a novel electrode material for ASSBs by combining lithium sulfate and lithium ruthenate, which results in improved performance. The scientists hope that their novel approach will guide future research and the eventual commercialization of such high-capacity batteries.