Research Progress in Lithium?Excess Disordered Rock?Salt Oxides Cathode

The increasing demand for new energy sources has promoted the improvement of storage capacity lithium-ion batteries (LIBs) that urged development higher density cathode materials. enhancement classical in last 30 years reached a bottleneck, and then discovery lithium-excess disordered materials greatly expanded research space Compared with conventional layered oxides, rock-salt oxides (LEDRXs) more stable structure extractable Li+ content, even though inactive high-valent transition metals (TMs) were needed to compensate excess Li, which would reduce total TM redox content. In addition, oxygen provides additional electron materials, also causes O loss results subsequent poor cycle performance. Herein, series studies about LEDRXs their targeted modification measures are summarized, including prospect order provide ideas design high-performance LEDRXs. Finally, discoveries outlook on future directions LEDRX LIBs given.