Electrochemically activated spinel manganese oxide for rechargeable aqueous aluminum battery

Abstract Aluminum is a naturally abundant, trivalent charge carrier with high theoretical specific capacity and volumetric energy density, rendering aluminum-ion batteries a technology of choice for future large-scale energy storage. However, the frequent collapse of the host structure of the cathode materials and sluggish kinetics of aluminum ion diffusion have thus far hampered the realization of practical battery devices. Here, we synthesize Al x MnO 2 · n H 2 O by an in-situ electrochemical transformation reaction to be used as a cathode material for an aluminum-ion battery with a configuration of Al/Al(OTF) 3 -H 2 O/Al x MnO 2 · n H 2 O. This cell is not only based on aqueous electrolyte chemistry but…

• UD
  U.S. Department of Energy

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

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

  Awards: DE-AC02-06CH11357, 51672307, 2015CB251100, 51522212
• OO
  Office of Science

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

  Awards: AC02-06CH11357, DE-AC02-06CH11357
• NK
  National Key Research and Development Program of China

  Awards: 51672307, 2015CB251100, 51522212
• OO
  Office of Energy Efficiency
• AN
  Argonne National Laboratory

  Awards: DE-AC02, 06CH11357, AC02-06CH11357