Sulfide-impregnated solid-state battery

This is a solid-state battery made from stacked individual units. Each unit contains a positive and a negative electrode, both featuring a mesh-like current collector coated with an oxide-based solid electrolyte. These oxide layers act as separators between the electrodes. The entire battery core, formed by these stacked units, then has a sulfide-based solid electrolyte filling its internal pore structures. The cathode material is specifically a lithium transition-metal oxide, such as LiNi0.5Mn1.5O4.

Why it matters: Since 2019, research into solid-state electrolytes has significantly improved the stability and conductivity of both oxide and sulfide materials. This makes the proposed dual-electrolyte system, which aims to leverage the benefits of both, potentially more viable for manufacturing and performance than when it was filed.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedSolid-state electrolyte deposition, meshed collectors, infiltration

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