摘要
A three-dimensional few-layer reduced graphene oxide-wrapped mesoporous Li4TisO12 （m-LTO@FL- RGO） electrode is produced using a simple solution fabrication process. When tested as an anode for Li- ion batteries, the m-LTO@FL-RGO composite exhibits excellent rate capability and superior cycle life. The capacity of m-LTO@FL-RGO reaches 165.4 mA h g 1 after 100 cycles between I and 2.5 V at a rate of 1 C. Even at a rate of 30 C, a high discharge capacity of 115.1 mA h g 1 is still obtained, which is three times higher than the pristine mesoporous Li4TisO12 （m-LTO）. The graphene nanosheets are incorporated into the m-LTO microspheres homogenously, which provide a high conductive network for electron transportation.
A three-dimensional few-layer reduced graphene oxide-wrapped mesoporous Li4TisO12 （m-LTO@FL- RGO） electrode is produced using a simple solution fabrication process. When tested as an anode for Li- ion batteries, the m-LTO@FL-RGO composite exhibits excellent rate capability and superior cycle life. The capacity of m-LTO@FL-RGO reaches 165.4 mA h g 1 after 100 cycles between I and 2.5 V at a rate of 1 C. Even at a rate of 30 C, a high discharge capacity of 115.1 mA h g 1 is still obtained, which is three times higher than the pristine mesoporous Li4TisO12 （m-LTO）. The graphene nanosheets are incorporated into the m-LTO microspheres homogenously, which provide a high conductive network for electron transportation.
基金
financially supported by Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, No. IRT1161)
Program of Science and Technology Innovation Team in Bingtuan (No. 2011CC001)
the National Natural Science Foundation of China (Nos. 21263021, U1303291)
