Facile lithium ion transport through superionic pathways formed on the surface of Li3V2(PO4)3/C for high power Li ion battery

Dong Wook Han; Sung Jin Lim; Yong Il Kim; Seung Ho Kang; Yoon Cheol Lee; Yong Mook Kang

doi:10.1021/cm500509q

Facile lithium ion transport through superionic pathways formed on the surface of Li₃V₂(PO₄)₃/C for high power Li ion battery

Dong Wook Han
, Sung Jin Lim
, Yong Il Kim
, Seung Ho Kang
, Yoon Cheol Lee
, Yong Mook Kang

Dept. of Future Energy Convergence

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

We report a new discovery for enhancing Li ion transport at the surface of Li₃V₂(PO₄)₃ particles through superionic pathways built along an ionic conductor. The Li₃V _1.95Zr_0.05(PO₄)₃/C composite has much higher initial discharge capacity, superior rate-capability, and excellent cycling performance when compared with pristine Li₃V ₂(PO₄)₃/C. This is partly due to the occupation of vanadium sites by Zr⁴⁺ ions in the Li₃V ₂(PO₄)₃ host crystals and facile Li ion migration through a LiZr₂(PO₄)₃-like secondary phase that forms on the surface of the Li₃V_1.95Zr _0.05(PO₄)₃ particles. Our findings about high Li ion transport and structure stabilization induced by Zr incorporation suggests a breakthrough strategy for achieving high-power Li rechargeable batteries using NASICON-structured cathode materials in combination with nanoarchitecture tailoring.

Original language	English
Pages (from-to)	3644-3650
Number of pages	7
Journal	Chemistry of Materials
Volume	26
Issue number	12
DOIs	https://doi.org/10.1021/cm500509q
State	Published - 24 Jun 2014

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title = "Facile lithium ion transport through superionic pathways formed on the surface of Li3V2(PO4)3/C for high power Li ion battery",

abstract = "We report a new discovery for enhancing Li ion transport at the surface of Li3V2(PO4)3 particles through superionic pathways built along an ionic conductor. The Li3V 1.95Zr0.05(PO4)3/C composite has much higher initial discharge capacity, superior rate-capability, and excellent cycling performance when compared with pristine Li3V 2(PO4)3/C. This is partly due to the occupation of vanadium sites by Zr4+ ions in the Li3V 2(PO4)3 host crystals and facile Li ion migration through a LiZr2(PO4)3-like secondary phase that forms on the surface of the Li3V1.95Zr 0.05(PO4)3 particles. Our findings about high Li ion transport and structure stabilization induced by Zr incorporation suggests a breakthrough strategy for achieving high-power Li rechargeable batteries using NASICON-structured cathode materials in combination with nanoarchitecture tailoring.",

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AU - Han, Dong Wook

AU - Lim, Sung Jin

AU - Kim, Yong Il

AU - Kang, Seung Ho

AU - Lee, Yoon Cheol

AU - Kang, Yong Mook

PY - 2014/6/24

Y1 - 2014/6/24

N2 - We report a new discovery for enhancing Li ion transport at the surface of Li3V2(PO4)3 particles through superionic pathways built along an ionic conductor. The Li3V 1.95Zr0.05(PO4)3/C composite has much higher initial discharge capacity, superior rate-capability, and excellent cycling performance when compared with pristine Li3V 2(PO4)3/C. This is partly due to the occupation of vanadium sites by Zr4+ ions in the Li3V 2(PO4)3 host crystals and facile Li ion migration through a LiZr2(PO4)3-like secondary phase that forms on the surface of the Li3V1.95Zr 0.05(PO4)3 particles. Our findings about high Li ion transport and structure stabilization induced by Zr incorporation suggests a breakthrough strategy for achieving high-power Li rechargeable batteries using NASICON-structured cathode materials in combination with nanoarchitecture tailoring.

AB - We report a new discovery for enhancing Li ion transport at the surface of Li3V2(PO4)3 particles through superionic pathways built along an ionic conductor. The Li3V 1.95Zr0.05(PO4)3/C composite has much higher initial discharge capacity, superior rate-capability, and excellent cycling performance when compared with pristine Li3V 2(PO4)3/C. This is partly due to the occupation of vanadium sites by Zr4+ ions in the Li3V 2(PO4)3 host crystals and facile Li ion migration through a LiZr2(PO4)3-like secondary phase that forms on the surface of the Li3V1.95Zr 0.05(PO4)3 particles. Our findings about high Li ion transport and structure stabilization induced by Zr incorporation suggests a breakthrough strategy for achieving high-power Li rechargeable batteries using NASICON-structured cathode materials in combination with nanoarchitecture tailoring.

UR - https://www.scopus.com/pages/publications/84903274173

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DO - 10.1021/cm500509q

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JF - Chemistry of Materials

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ER -

Facile lithium ion transport through superionic pathways formed on the surface of Li₃V₂(PO₄)₃/C for high power Li ion battery

Abstract

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