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The multilayer approach to solid-state battery electrolytes

- Transforming traditional battery architecture

Speaker: Gregory Hitz | Company: ION Storage Systems | Date: 9-10 Feb 2022 | Full Presentation


Solid-state battery cells offer the ability to host high energy density lithium metal while affording safety above that of state-of-the-art lithium-ion cells due to the use of non-flammable electrolytes and dense layers that cannot be easily punctured by lithium dendrites. Ion Storage Systems (ION) employs a high-ionic conductivity garnet-based electrolyte capable of lithium metal plating without degradation at a wide range of operating temperatures.

In many solid-state cell architectures pursued to date, lithium metal plating directly leads to cell internal volume changes. Ensuring consistent lithium plating over a planar surface necessitates external compression which can add to cell and pack overhead costs while decreasing the overall specific energy density of the system as a whole. ION’s solid-state electrolyte is incorporated into cells in a bilayer structure that allows lithium to plate within the confines of a porous ceramic layer which is sintered on a cathode-separating dense ceramic layer. This structure enables constant-volume cells which can host a multitude of cathodes and enable simplified application integration, high energy density and prolonged cycle life.


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