Are Redox‐Active Organic Small Molecules Applicable for High‐Voltage (>4 V) Lithium‐Ion Battery Cathodes? (Adv. Sci. 12/2022)

4 V‐Class Organic Lithium‐Ion Batteries While organic lithium‐ion batteries have attracted great attention due to their high theoretical capacities, high‐voltage organic cathode materials remain unexplored. In article number 2200187, Yuto Katsuyama, Hiroaki Kobayashi, Itaru Honma, and co‐workers report the electrochemistry of croconic acid at high voltage. Theoretical and experimental investigations confirm the two enolates in croconic acid show around 4 V redox, which can be utilized for energy storage. [Image: see text]