Effect of LiI Amount to Enhance the Electrochemical Performance of Carbon-Coated LiFePO4
Journal
Electrochemical and Solid State Letters
Journal Volume
12
Journal Issue
6
Pages
A111-A114
Date Issued
2009
Author(s)
Abstract
We used the wet chemistry method with different amounts of LiI to prepare and carbon-coated samples. The lithiation process of LiI for preparing the is proposed. We found that the amount of LiI greatly affected the purities of products. The sample showed constant values of current density during potential cycling up to as compared to , suggesting that the has better electrochemical performance. The obtained maximum capacity for can be approached to the theoretical capacity of . Moreover, Brunauer–Emmett–Teller measurements of and showed a surface area of 6.7 and , respectively. It is reasonable to believe that the excellent performance of the compound developed in our work can be attributed to the smaller particle size coated with conductive carbon achieved by the controlling LiI in the sol-gel method.
SDGs
Type
journal article