A Honeycomb-Layered Na3Ni2SbO6: A High-Rate and Cycle-Stable Cathode for Sodium-Ion Batteries

A Honeycomb-Layered Na3Ni2SbO6: A High-Rate and Cycle-Stable Cathode for Sodium-Ion Batteries

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...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-09, Vol.26 (36), p.6301-6306
Hauptverfasser: Yuan, Dingding, Liang, Xinmiao, Wu, Lin, Cao, Yuliang, Ai, Xinping, Feng, Jiwen, Yang, Hanxi
Format: Artikel
Sprache:eng
Schlagworte:
Cathode
honeycomb structure
layered oxides
Na-ion batteries
Na3M2SbO6
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Zusammenfassung: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201401946