Communication—O3-Type Layered Oxide with a Quaternary Transition Metal Composition for Na-Ion Battery Cathodes: NaTi0.25Fe0.25Co0.25Ni0.25O2 | Zendy

Plousia Vassilaras | Zendy; Stephen Dacek | Zendy; Haegyeom Kim | Zendy; Timothy T. Fister | Zendy; Soojeong Kim | Zendy; Gerbrand Ceder | Zendy; Jae Chul Kim | Zendy

Open Access

Communication—O3-Type Layered Oxide with a Quaternary Transition Metal Composition for Na-Ion Battery Cathodes: NaTi_0.25Fe_0.25Co_0.25Ni_0.25O₂

Author(s) -

Plousia Vassilaras,

Stephen Dacek,

Haegyeom Kim,

Timothy T. Fister,

Soojeong Kim,

Gerbrand Ceder,

Jae Chul Kim

Publication year - 2017

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/2.0271714jes

Subject(s) - cathode , oxide , transition metal , battery (electricity) , metal , ion , analytical chemistry (journal) , materials science , chemistry , inorganic chemistry , metallurgy , biochemistry , power (physics) , physics , organic chemistry , chromatography , quantum mechanics , catalysis

Author(s): Vassilaras, P; Dacek, ST; Kim, H; Fister, TT; Kim, S; Ceder, G; Kim, JC | Abstract: © The Author(s) 2017. NaTi0.25Fe0.25Co0.25Ni0.25O2 is explored as a cathode material for Na-ion batteries. Synthesized by a solid-state reaction, the compound is phase-pure with the O3-type layered structure and consists of Ti4+, Fe3+, Co3+, and Ni2+ according to X-ray absorption spectroscopy. The cathode delivers 163 mAh/g and 504 Wh/kg at C/20 in the first discharge with 89% capacity retention after 20 cycles and demonstrates superior rate capability with micron sized particles, in which discharge capacity at 30 C is 80mAh/g. Our results indicate that the Ti-containing quaternary material can be a potential cathode composition for Na-ion batteries.

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