Designing new lithium-excess cathode materials from percolation theory: Nanohighways in LixNi2-4 x /3Sbx/3O2

Nancy Twu; Xin Li; Alexander Urban; Mahalingam Balasubramanian; Jinhyuk Lee; Lei Liu; Gerbrand Ceder

doi:10.1021/nl5040754

Designing new lithium-excess cathode materials from percolation theory: Nanohighways in Li_xNi_{2-4 x /3}Sb_x/3O₂

Nancy Twu
, Xin Li
, Alexander Urban
, Mahalingam Balasubramanian
, Jinhyuk Lee
, Lei Liu
, Gerbrand Ceder

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

55 Scopus citations

Abstract

Increasing lithium content is shown to be a successful strategy for designing new cathode materials. In layered Li_xNi_2-4x/3Sb_x/3O₂ (x = 1.00-1.15), lithium excess improves both discharge capacity and capacity retention at 1C. Structural studies reveal a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains forms the correct local configuration for good lithium mobility. The <1 nm Li-Sb stripe domains and their interfaces thereby effectively act as nanohighways for lithium diffusion.

Original language	English
Pages (from-to)	596-602
Number of pages	7
Journal	Nano Letters
Volume	15
Issue number	1
DOIs	https://doi.org/10.1021/nl5040754
State	Published - Jan 14 2015
Externally published	Yes

Keywords

Cathode
lithium-excess
nano
percolation

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10.1021/nl5040754

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abstract = "Increasing lithium content is shown to be a successful strategy for designing new cathode materials. In layered LixNi2-4x/3Sbx/3O2 (x = 1.00-1.15), lithium excess improves both discharge capacity and capacity retention at 1C. Structural studies reveal a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains forms the correct local configuration for good lithium mobility. The <1 nm Li-Sb stripe domains and their interfaces thereby effectively act as nanohighways for lithium diffusion.",

keywords = "Cathode, lithium-excess, nano, percolation",

author = "Nancy Twu and Xin Li and Alexander Urban and Mahalingam Balasubramanian and Jinhyuk Lee and Lei Liu and Gerbrand Ceder",

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T2 - Nanohighways in LixNi2-4 x /3Sbx/3O2

AU - Twu, Nancy

AU - Li, Xin

AU - Urban, Alexander

AU - Balasubramanian, Mahalingam

AU - Lee, Jinhyuk

AU - Liu, Lei

AU - Ceder, Gerbrand

PY - 2015/1/14

Y1 - 2015/1/14

N2 - Increasing lithium content is shown to be a successful strategy for designing new cathode materials. In layered LixNi2-4x/3Sbx/3O2 (x = 1.00-1.15), lithium excess improves both discharge capacity and capacity retention at 1C. Structural studies reveal a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains forms the correct local configuration for good lithium mobility. The <1 nm Li-Sb stripe domains and their interfaces thereby effectively act as nanohighways for lithium diffusion.

AB - Increasing lithium content is shown to be a successful strategy for designing new cathode materials. In layered LixNi2-4x/3Sbx/3O2 (x = 1.00-1.15), lithium excess improves both discharge capacity and capacity retention at 1C. Structural studies reveal a complex nanostructure pattern of Li-Sb and Ni-Sb ordering where the interface between these domains forms the correct local configuration for good lithium mobility. The <1 nm Li-Sb stripe domains and their interfaces thereby effectively act as nanohighways for lithium diffusion.

KW - Cathode

KW - lithium-excess

KW - nano

KW - percolation

UR - https://www.scopus.com/pages/publications/84920983051

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JF - Nano Letters

IS - 1

ER -

Designing new lithium-excess cathode materials from percolation theory: Nanohighways in Li_xNi_{2-4 x /3}Sb_x/3O₂

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Keywords

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