Vesicular mesoporous copper oxide as anode for high lithium storage

Porous materials are desirable effective anodes for lithium storage with excellent high-rate performance. Such hierarchical nanoporous structure exhibits high specific surface area, moderate pore size distribution, and labyrinth-like channels between nanoparticles, which improve wettability with electrolyte, provide more active sites for Li + storage, and enhance structure stability during cycling. Herein, we prepared a series of vesicular porous copper oxides from precursor by powder sintering at different thermal-decomposition temperatures. The product at 500 °C showed high BET with 102.1 m 2 /g, and delivered excellent electrochemical performance in lithium-ion batteries. The reversible capacity of CuO-500 retained 800 mA h g −1 at 100 mA g −1 after 60 recycles, and 400 mA h g −1 at 1000 mA g −1 after 300 recycles.