Microwave Modification of N-Doped Carbon for High Performance Lithium-Ion Batteries

作者：Meng, Yanshuang; Xiao, Mingjun; Wang, Lei; Duan, Chaoyu; Zhu, Fuliang^*; Zhang, Yue^*

来源：Journal of the Electrochemical Society, 2017, 164(14): A3772-A3776.

DOI：10.1149/2.1151714jes

• POROUS CARBON
• ANODE MATERIALS
• MESOPOROUS CARBON
• FACILE SYNTHESIS
• HIGH-CAPACITY
• NITROGEN
• GRAPHENE
• NANOPARTICLES
• NANOFIBERS
• STORAGE

In this work, the modification effect of microwave irradiation on the surface functional groups and electrochemical properties of N-doped carbon (NDC) was investigated. The microwave irradiation generated a large number of edge defects and thus many pyridinic and pyrrolic N on the surface of NDC, which served as the active sites for Li+ ions adsorption. The microwave irradiation also led to the decomposition of the hydroxyl functional groups on the surface of NDC, which were beneficial to the formation of a more stable and conductive solid electrolyte interface (SEI) film on the surface of NDC. Therefore, the microwave modified NDC delivered a high specific capacity of 613.5 mAh g(-1) after 50 cycles at 0.1 C and excellent rate performance when used as anode material of lithium ion battery.

• 出版日期2017
• 单位兰州理工大学