Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7744160 | Solid State Ionics | 2018 | 5 Pages |
Abstract
The commercial LiFePO4 cathode has attracted great attention for large-scale energy storage because of its high safety, low cost, low toxicity and excellent thermal stability. Unfortunately, the poor electronic conductivity of LiFePO4 leads to bad lithium storage property. In this work, the nitrogen-doped graphene-decorated LiFePO4 was prepared via a facile hydrothermal method followed by a conventional solid-state route. Benefiting from the advantages of nitrogen-doped graphene, the conductivity of LiFePO4 is greatly improved. Therefore, the obtained composite shows excellent electrochemical performances, including high reversible capacity (163.1â¯mAhâ¯gâ1 at 0.1â¯C), good rate capability (113.7â¯mAhâ¯gâ1 at 10â¯C) and stable cycle-life (111.6â¯mAhâ¯gâ1 after 150â¯cycles at 10â¯C). These results reveal that the designed nitrogen-doped graphene-decorated LiFePO4 composite is a promising cathode material for rechargeable lithium-ion batteries.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Zhihao Yu, Linhua Jiang,