UW-Madison researchers have developed a high throughput electrochemical testing device (UltraLyte) comprising a microelectrode array on a glass plate, which allows for rapid screening of the performance of battery electrolytes in a manner that is predictive of their performance in full battery cells. When coupled with a multiplexer, this platform allows for a single electrochemical workstation (potentiostat) to supersede the use of dozens of slow, standard battery cyclers, instead evaluating many compositions quickly and predicting the performance of each cell composition in under a minute. UltraLyte is an inert system capable of predicting both Coulombic efficiency and lifetime. The current design includes 24 cells, but the inventors are designing a 96-well plate and further expansions are also possible.