摘要
Carbon-coated Li4Ti5O12 sample was synthesized by a sol-gel method. The Li4Tis012 powders were obtained by calcinations of the gels at 750, 800, 850, 900 ℃ at N2 atmosphere. The structure, morphology and electrochemical properties of the materials were characterized by SEM, XRD and charge and discharge. The final product sintered at 850℃ demonstrates excellent performance with a specific capacity of 163.5 mAh/g after 100 cycles at 1C. Furthermore, the discharge specific capacity of the sample can retain 80 mAh/g at 10℃.
Carbon-coated Li4Ti5O12 sample was synthesized by a sol-gel method. The Li4Tis012 powders were obtained by calcinations of the gels at 750, 800, 850, 900 ℃ at N2 atmosphere. The structure, morphology and electrochemical properties of the materials were characterized by SEM, XRD and charge and discharge. The final product sintered at 850℃ demonstrates excellent performance with a specific capacity of 163.5 mAh/g after 100 cycles at 1C. Furthermore, the discharge specific capacity of the sample can retain 80 mAh/g at 10℃.
基金
supported by the Natural Science Foundation of Anhui Province Education Department(No.2014kj A167)
