Name/Shutterstock.com Manufacturing Advances in Solid-State Batteries Promising new research chips away at the impediments to introducing solid-state batteries for the high-volume - but high-expectation - automotive market. B Discs MIT and Brookhaven National Laboratory researchers used for testing a new processing method for coating the separator material in solid-state batteries. On the left is a sample of the solid electrolyte material known as LLZO. At center, the same material coated with the cathode material used in their tests. At right, the LLZO material with a coating of gold that facilitates measuring its electrical properties. (Photo: Pjotrs Žguns) 12 attery engineers targeting electric vehicles (EVs) continue to research designs with solid-state electrolyte because of the alluring twin promises of signifi cantly higher energy densities - which lead to longer driving range - and greatly enhanced safety that comes with eliminating liquidous electrolytes. Additional presumed advantages for solid-state batteries are quicker recharging and longer lifespan - not to mention the potential to Battery & Electrifi cation Technology, May 2022