Ni/Li Disordering in Layered Transition Metal Oxide: Electrochemical Impact, Origin, and Control

ConspectusLithium ion batteries (LIBs) not only power most of today’s hybrid electric vehicles (HEV) and electric vehicles (EV) but also are considered as a promising system for grid-level storage. Large-scale applications for LIBs require substantial improvement in energy density, cost, and lifetime. Layered lithium transition metal (TM) oxides, in particular, Li(NixMnyCoz)O2 (NMC, x + y + z = 1) are the most promising candidates as cathode materials with the potential to increase energy densities and lifetime, reduce costs, and improve safety. In order to further boost Li storage capacity, a great deal of attention has been directed toward developing Ni-rich layered TM oxides. However, structural disorder as…

• UD
  U.S. Department of Energy

  Awards: 6951379, 18769, SC0012704, DE-AC02-05CH11231
• NN
  National Natural Science Foundation of China

  Award: 21603007
• OO
  Office of Energy Efficiency and Renewable Energy

  Award: DE-SC0012704
• OO
  Office of Energy Efficiency