CuO/Cu2O composite hollow polyhedrons fabricated from metal-organic framework templates for lithium-ion battery anodes with a long cycling life

Novel CuO/Cu2O hollow polyhedrons with porous shells were fabricated by thermal decomposition of coordination compound [Cu-3(btc)(2)](n) (btc = benzene-1,3,5-tricarboxylate) polyhedrons at 350 degrees C. When tested as anode materials for lithium-ion batteries, these hollow polyhedrons exhibited a reversible lithium storage capacity as high as 740 mA h g (1) at 100 mA g (1) after 250 cycles even if the charge-discharge process is stopped for one week during the test time.