Advanced Materials

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24_34i/2012Hollow Microspheres: Formation of ZnMn2O4 Ball-in-Ball Hollow Microspheres as a High-Performance Anode for Lithium-Ion Batteries (Adv. Mater. 34/2012)

Hollow micro-/nanostructures are generating growing interest due to their applications in various areas including catalysis, drug delivery, and energy conversion and storage systems. On page 4609, X. W. Lou and co-workers show that novel ZnMn2O4 ball-in-ball hollow microspheres can be fabricated by a facile two-step method involving the solution synthesis of ZnMn-glycolate hollow microspheres and subsequent thermal annealing in air. When evaluated as an anode material for lithiumion batteries, the hollow microspheres show significantly enhanced electrochemical performance with high capacity, excellent cycling stability, and good rate capability.

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