A reversible conversion and intercalation reaction material for Li ion battery cathode

作者：Shen, Yongqiang; Wang, Xianyou^*; Hu, Hai; Jiang, Miaoling; Wei, Shuangying; Bai, Yansong

来源：Materials Letters, 2016, 180: 260-263.

DOI：10.1016/j.matlet.2016.05.132

• Li ion batteries
• Iron fluorides
• Graphene
• Sheet-like structure

Although FeF3 and its hydrates have been studied as the cathode materials for Li ion batteries (LIBs), herein the FeF3/graphene composite with sheet-like structure is innovatively prepared and used as LIB cathode material. By scanning electron microscope (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), X-ray diffraction (XRD) and electrochemical measurement, the structure and electrochemical performance of the as-synthesized FeF3/graphene composite are investigated. The results indicate that the sheet-like structure hybrid is formed by the FeF3 nanosheets and the graphene sheets. Meantime, we demonstrate that the FeF3/graphene composite has good rate capability and cycling performance, whether it is based on conventional intercalation reaction or reversible conversion reactions.

• 出版日期2016-10-1
• 单位吉首大学; 湘潭大学