Facile Synthesis of Porous Coralline LiVO3 as High‐Performance Li‐Ion Battery Cathodes

Abstract A facile and easily scaled‐up polymer‐pyrolysis method is developed to synthesize porous coralline LiVO 3 as cathodes for lithium‐ion batteries (LIBs). Polyacrylates of Li and V are used as the precursor compounds. The nanostructured LiVO 3 delivers a high specific capacity of 307.6 mAh g −1 with a remarkable capacity retention of 80.6% after 100 cycles. In addition, a high energy density close to 800 Wh kg −1 as well as a competitive power density of ∼4500 W kg −1 are attained. Such excellent lithium storage performance derives from its porous nanoarchitecture, which not only supplies numerous active sites for electrochemical reactions, and shortens Li‐ions diffusion distance, but also provides enough void space to buffer the volume change during lithium intercalation and deintercalation. Therefore, the porous coralline LiVO 3 justifies its potential practical application as an alternative to high energy and high power electrode materials for lithium‐ion batteries. The simple approach opens up a new way to fabricate other types of porous coralline energy storage materials.