Enabling high energy lithium metal batteries via single-crystal Ni-rich cathode material co-doping strategy

Abstract High-capacity Ni-rich layered oxides are promising cathode materials for secondary lithium-based battery systems. However, their structural instability detrimentally affects the battery performance during cell cycling. Here, we report an Al/Zr co-doped single-crystalline LiNi 0.88 Co 0.09 Mn 0.03 O 2 (SNCM) cathode material to circumvent the instability issue. We found that soluble Al ions are adequately incorporated in the SNCM lattice while the less soluble Zr ions are prone to aggregate in the outer SNCM surface layer. The synergistic effect of Al/Zr co-doping in SNCM lattice improve the Li-ion mobility, relief the internal strain, and suppress the Li/Ni cation mixing upon cycling at high cut-off…

• UD
  U.S. Department of Energy

  Awards: AC02-06CH11357, SC0012704, DE-AC02, 06CH11357, DE-AC02-06CH11357, CERC-CVC2, DE-AC02-
• UO
  University of Chicago

  Award: DE-AC02-06CH11357
• NN
  National Natural Science Foundation of China

  Awards: 51922042, 51872098, DE-AC02-06CH11357, 51902347, DE-SC0012704
• CE
  Canada Excellence Research Chairs, Government of Canada
• OO
  Office of Science

  Awards: DE-AC02-06CH11357, DE-AC02, 06CH11357, SC0012704, AC02-06CH11357, DE-SC0012704
• OO
  Office of Energy Efficiency and Renewable Energy

  Awards: AC02-06CH11357, DE-AC02-06CH11357, DE-SC0012704
• NS
  National Supercomputing Center, Korea Institute of Science and Technology Information
• OO
  Office of Energy Efficiency
• AN
  Argonne National Laboratory

  Awards: DE-AC02, DE-SC0012704, 06CH11357, AC02-06CH11357
• BN
  Brookhaven National Laboratory

  Awards: SC0012704, DE-AC02-06CH11357