Abstract
Manganese pyrophosphate, Mn2P2O7 was synthesized by a simple solvothermal method using Mn metal powder and P 2S5 in ethylene glycol medium at 190-220 °C. Morphology and crystalline structure of the products were characterized by X-ray diffraction and scanning electron microscopy. The flower-like microspheres with diameters of about 2-5 μm are composed of a number of nanoplatelets with thickness of 20-40 nm. The effect of reaction temperature and reaction time on the microstructure of Mn2P2O7 was investigated. The samples were used as active anode materials for lithium-ion battery and their electrochemical properties were examined by constant current charge-discharge cycling. The Mn2P2O7 electrodes exhibited initial reversible capacities of 440-330 mAh g - 1 depending on the synthetic conditions. From these results, a possible reaction mechanism of Mn2P2O7 with lithium was proposed. © 2011 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 3265-3268 |
| Journal | Materials Letters |
| Volume | 65 |
| Issue number | 21-22 |
| DOIs | |
| Publication status | Published - Nov 2011 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.Funding
This study was supported by National Research Foundation of Korea Grant funded by the Korean government ( No. 2010-0029617 ).
Research Keywords
- Anode materials
- Lithium ion battery
- Manganese pyrophosphate
- Solvothermal synthesis
