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- Cho, Jaephil
- Nano Energy Storage Material Lab.
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Nanoparticle iron-phosphate anode material for Li-ion battery
- Issued Date
- 2004-12
- Citation
- APPLIED PHYSICS LETTERS, v.85, no.24, pp.5875 - 5877
- Abstract
- Nanoparticle crystalline iron phosphates (FePO4.2H(2)O and FePO4) were synthesized using a (CTAB) surfactant as an anode material for Li rechargeable batteries. The electrochemical properties of the nanoparticle iron phosphates were characterized with a voltage window of 2.4-0 V. A variscite orthorhombic FePO4.2H(2)O showed a large initial charge capacity of 609 mAh/g. On the other hand, a tridymite triclinic FePO4 exhibited excellent cyclability: the capacity retention up to 30 cycles was similar to80%, from 485 to 375 mAh/g. The iron phosphate anodes exhibited the highest reported capacity, while the cathode LiFePO4 has an ideal capacity of 170 mAh/g.
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
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