Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 5, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201601698
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0005397]
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Mg-substituted Na3Ni2-xMgxSbO6 cathode materials are synthesized via a scalable high-temperature solid-state method to improve the cyclability of the honey-comb-layered oxide cathode in sodiumion batteries. The partial substitution of Ni2+ by Mg2+ in the transition-metal layer suppresses the electrochemically unfavorable P3-O1 transition and enlarges the lattice parameters to bring improved performance with respect to capacity retention, Coulombic efficiency, and Na (de) intercalation kinetics.
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