Ni3Si2O5(OH)4 hierarchical hollow cubes are assembled with nanosheets.
The first report on Li storage capability of Ni3Si2O5(OH)4 hollow cubes.
Ni3Si2O5(OH)4 hollow cubes exhibit the initial discharge capacity of 1246 mA h g−1.
Discharge capacity of Ni3Si2O5(OH)4 hollow cubes is 106 mA h g−1 after 200 cycles.