[an error occurred while processing this directive]

高等学校化学研究 ›› 2006, Vol. 22 ›› Issue (1): 73-75.

• Articles • 上一篇    下一篇

Studies on Electrochemical Property of LiFePO4/C as Cathode Material for Lithium Ion Batteries

HUANG Xiao-wen1,2, SHI Peng-fei1   

  1. 1. Faculty of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, P.R. China;
    2. College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, P.R. China
  • 收稿日期:2005-04-11 出版日期:2006-02-24 发布日期:2011-08-06
  • 基金资助:

    Supported by Natural Science Foundation of Jilin Province(No. 20000133).

Studies on Electrochemical Property of LiFePO4/C as Cathode Material for Lithium Ion Batteries

HUANG Xiao-wen1,2, SHI Peng-fei1   

  1. 1. Faculty of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, P.R. China;
    2. College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, P.R. China
  • Received:2005-04-11 Online:2006-02-24 Published:2011-08-06
  • Supported by:

    Supported by Natural Science Foundation of Jilin Province(No. 20000133).

PDF (PC)

摘要： LiFePO4/C samples were prepared at different temperatures by adding sugar to the synthetic precursor. The samples were characterized by X-ray diffraction(XRD). Their crystal phases show an olivine structure. Only the sample obtained at 700 ℃ has a larger discharge capacity, which has good electrochemical properties: its discharge specific capacity is 120.3 mAh/g at a current of 0.05 mA, and its capacity fade is very low after 20 cycles. It is demonstrated that the best synthetic temperature should be 700 ℃.

关键词: Olivine, Lithium ion battery, Carbon-coated LiFePO4

Abstract: LiFePO4/C samples were prepared at different temperatures by adding sugar to the synthetic precursor. The samples were characterized by X-ray diffraction(XRD). Their crystal phases show an olivine structure. Only the sample obtained at 700 ℃ has a larger discharge capacity, which has good electrochemical properties: its discharge specific capacity is 120.3 mAh/g at a current of 0.05 mA, and its capacity fade is very low after 20 cycles. It is demonstrated that the best synthetic temperature should be 700 ℃.

Key words: Olivine, Lithium ion battery, Carbon-coated LiFePO4