Figure 11 The potential solving strategies towards the future
high-safety and high-energy-density metal batteries based on the lithium
alloys anodes.
Finally, we want to emphasize that more efforts should be devoted to
develop the Li-containing alloys anodes suitable for Li-S batteries and
Li-air batteries, as firstly, the energy density of LIBs is limited,
which could not meet the future electric vehicles and grid energy
storage markets; secondly as the higher reduction of polysulfide anions
in Li-S batteries and higher oxidation of superoxide radical anions in
Li-air batteries, some of Li-containing alloy anodes may be used stably
in LIBs but not stable in Li-S and Li-air batteries. Therefore, Li metal
protection in Li-S and Li-air batteries is more complicated compared
with lower energy density LIBs. In a word, we believe that through our
unremitting efforts, the Li-containing alloys anodes will show great
potentials in the high-safety and high-energy-density battery systems.