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LiNi0.5Mn1.5O4 Hollow Structures as High-Performance Cathodes for Lithium-Ion Batteries



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Built to last: Uniform LiNi0.5Mn1.5O4 hollow microspheres and microcubes (see picture; scale bars: 1 μm) with nanosized building blocks have been synthesized by a facile impregnation method followed by a simple solid-state reaction. The resultant LiNi0.5Mn1.5O4 hollow structures deliver a discharge capacity of about 120 mA h g−1 over prolonged cycling and exhibit excellent rate capability.