Activating vanadium's highest oxidation state in the NASICON structure

C. W. Mason; I. Gocheva; H. E. Hoster; D. Y W Yu

doi:10.1149/05812.0041ecst

Activating vanadium's highest oxidation state in the NASICON structure

C. W. Mason
, I. Gocheva
, H. E. Hoster
, D. Y W Yu

School of Energy and Environment

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

7 Citations (Scopus)

Abstract

The capacity and energy density of Na₃V₂(PO ₄)₃ cathode material, for sodium ion batteries, was enhanced by partial substitution of iron in the octahedral vanadium site. Through this process, we show for the first time that the V⁴⁺/V ⁵⁺ redox couple can be utilized in rhombohedral NASICON at above 4.0V vs. Na/Na⁺. At this juncture, we discovered that iron is unique in its ability to easily activate vanadium's highest oxidation state. Furthermore, an additional 12% capacity is realized due to the increased sodium concentration in the synthesized compound. © The Electrochemical Society.

Original language	English
Pages (from-to)	41-46
Journal	ECS Transactions
Volume	58
Issue number	12
DOIs	https://doi.org/10.1149/05812.0041ecst
Publication status	Published - 2013

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title = "Activating vanadium's highest oxidation state in the NASICON structure",

abstract = "The capacity and energy density of Na3V2(PO 4)3 cathode material, for sodium ion batteries, was enhanced by partial substitution of iron in the octahedral vanadium site. Through this process, we show for the first time that the V4+/V 5+ redox couple can be utilized in rhombohedral NASICON at above 4.0V vs. Na/Na+. At this juncture, we discovered that iron is unique in its ability to easily activate vanadium's highest oxidation state. Furthermore, an additional 12\% capacity is realized due to the increased sodium concentration in the synthesized compound. {\textcopyright} The Electrochemical Society.",

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AU - Mason, C. W.

AU - Gocheva, I.

AU - Hoster, H. E.

AU - Yu, D. Y W

PY - 2013

Y1 - 2013

N2 - The capacity and energy density of Na3V2(PO 4)3 cathode material, for sodium ion batteries, was enhanced by partial substitution of iron in the octahedral vanadium site. Through this process, we show for the first time that the V4+/V 5+ redox couple can be utilized in rhombohedral NASICON at above 4.0V vs. Na/Na+. At this juncture, we discovered that iron is unique in its ability to easily activate vanadium's highest oxidation state. Furthermore, an additional 12% capacity is realized due to the increased sodium concentration in the synthesized compound. © The Electrochemical Society.

AB - The capacity and energy density of Na3V2(PO 4)3 cathode material, for sodium ion batteries, was enhanced by partial substitution of iron in the octahedral vanadium site. Through this process, we show for the first time that the V4+/V 5+ redox couple can be utilized in rhombohedral NASICON at above 4.0V vs. Na/Na+. At this juncture, we discovered that iron is unique in its ability to easily activate vanadium's highest oxidation state. Furthermore, an additional 12% capacity is realized due to the increased sodium concentration in the synthesized compound. © The Electrochemical Society.

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DO - 10.1149/05812.0041ecst

M3 - RGC 22 - Publication in policy or professional journal

SN - 1938-5862

VL - 58

SP - 41

EP - 46

JO - ECS Transactions

JF - ECS Transactions

IS - 12

ER -

Activating vanadium's highest oxidation state in the NASICON structure

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