A Honeycomb‐Layered Na3Ni2SbO6: A High‐Rate and Cycle‐Stable Cathode for Sodium‐Ion Batteries
- 28 July 2014
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 26 (36), 6301-6306
- https://doi.org/10.1002/adma.201401946
Abstract
A honeycomb layered Na3Ni2SbO6 is synthesized as a cathode for sodium-ion batteries. This new host material exhibits a high capacity of 117 mA h g−1, a remarkable cyclability with 70% capacity retention over 500 cycles at a 2C rate, and a superior rate capability with >75% capacity delivered even at a very high rate of 30 C (6000 mA g−1). These results open a new perspective to develop high-capacity and high-rate Na-ion batteries for widespread electric-energy-storage applications.Keywords
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