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Nano-LiNi0.5Mn1.5O4 spinel: a high power electrode for Li-ion batteries.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . Oct2008, Vol. 2008 Issue 40, p5471-5475. 5p. - Publication Year :
- 2008
-
Abstract
- Disordered and ordered forms of nano-Li[Ni0.5Mn1.5]O4 spinel, have been prepared by a one-pot resorcinol–formaldehyde synthesis. Lithium intercalation into disordered nano-Li[Ni0.5Mn1.5]O4−δ reveals good rate capability and cycling stability. It delivers 95.5% of the capacity at a rate of 10C (1500 mA g−1) and 88% at 20C (3000 mA g−1) compared with the capacity at low rate (0.2C). A capacity retention on cycling of 99.97% per cycle at 1C rate has also been observed. The superior electrochemical behaviour of disordered nano-Li[Ni0.5Mn1.5]O4−δ has been correlated with AC impedance data, which suggests a modified surface for the nanomaterial prepared using the resorcinol–formaldehyde route compared with micron sized materials prepared by conventional solid state synthesis. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LITHIUM ions
*ELECTRODES
*FORMALDEHYDE
*ELECTRIC currents
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 2008
- Issue :
- 40
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 34652207
- Full Text :
- https://doi.org/10.1039/b806662k