▎ 摘 要
A three-dimensional few-layer reduced graphene oxide-wrapped mesoporous Li4Ti5O12 (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 1 and 2.5 Vat 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 Li4Ti5O12 (m-LTO). The graphene nanosheets are incorporated into the m-LTO microspheres homogenously, which provide a high conductive network for electron transportation. (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.