Novel cubic and tetragonal In
2S
3 hollow microspheres consisting of nanoflakes, as well as cubic In
2S
3 nanoflakes,were synthesized via a double-sulfur-source approach using InCl
3·4H
2O as the indium source under solvothermal conductions.Cubic and tetragonal In
2S
3 hollow microspheres with an average diameter of 5-15
![](/images/entities/mgr.gif)
m reveal flat and clean nanoflakes inside themicrospheres; the In
2S
3 nanoflakes have an average thickness of 10 nm. The samples were characterized by XRD, FESEM, TEM,SAED, HRTEM, and XPS. Electrochemical tests show that these cubic In
2S
3 nanoflakes deliver an astoundingly large dischargecapacity of 1150 mA h g
-1 vs Li metal at 0.032 mA cm
-2 (voltage window of 0-3.0 V) compared with that of ordinary cathodematerials. The obtained sample might find promising application as an electrode material in lithium ion batteries.