Fine nanostructure design of metal chalcogenide conversion-based cathode materials for rechargeable magnesium batteries.

Magnesium-ion batteries (MIBs) a strong candidate to set off the second-generation energy storage boom due to their double charge transfer and dendrite-free advantages. However, the strong coulombic force and the huge diffusion energy barrier between Mg and the electrode material have led to need for a cathode material that can enable the rapid and reversible de-insertion of Mg. So far, researchers have found that the sulfur-converted cathode materials have a greater application prospect due to the advantages of low price and high specific capacity, etc.