Abstract
The influence of the initial addition of Pt on the microstructure and electrochemical properties of synthesized LiCoO2-based material was investigated. A small amount of Pt additive induces Li2PtO3 and Pt in matrix LiCoO2 to form a multi-phase composite. This multi-phase composite shows the improved rate performance and cycleability at high rate in comparison with the single-phase of LiCoO2. This behavior is attributed to the enhanced diffusion of Li ion in the LiCoO2 matrix, which can be demonstrated by galvanostatic intermittent titration technique.
| Original language | English |
|---|---|
| Pages (from-to) | 351-358 |
| Number of pages | 8 |
| Journal | Wuji Cailiao Xuebao/Journal of Inorganic Materials |
| Volume | 20 |
| Issue number | 2 |
| Publication status | Published - Mar 2005 |
Keywords
- Diffusion
- Discharge rate
- LiCoO-based multi-phase composite
- Pt element additive