“A leading producer of solid-state electrolytes (SSE) has confirmed that SupALOX™ High Purity Alumina has passed the company’s raw material specification and process tests for use in aluminium containing SSE.”

Solid-state batteries (SSB) have a solid-state electrolyte in place of liquid electrolytes, the technology has the promise of increased energy density and improved safety over current lithium-ion batteries. SSB are being rapidly developed by most  major battery producers and EV car manufacturers with a view to commercialisation in the second half of the decade. Advantages of SSBs include:

Higher energy density, the liquid electrolyte is replaced with thin solid materials and the use of lithium metal anodes, higher safety and tolerance to overcharge and deep discharge. No liquid leakage and low flammability. Higher operating voltage, fast charge and discharge rate. Wider temperature range of operation and they are particularly tolerant of  higher temperature operation.

The solid-state electrolyte is a key component in solid-state batteries. Inorganic crystalline materials and inorganic amorphous materials form the main solid-state electrolytes. These  electrolytes have high elastic moduli, strong thermal/chemical stability, a wide electrochemical stability window, high lithium ionic conductivity coupled with low electronic conductivity. These electrolytes are ideal  for rigid battery designs and harsh environments such as EV applications. Electrolytes are typically based on oxides, sulphides or phosphates and many contain aluminium

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