Phase-pure β-NiMoO4 yolk-shell spheres for high-performance anode materials in lithium-ion batteries

Jee Hyun Ahn; Gi Dae Park; Yun Chan Kang; Jong Heun Lee

doi:10.1016/j.electacta.2015.05.149

Phase-pure β-NiMoO₄ yolk-shell spheres for high-performance anode materials in lithium-ion batteries

Jee Hyun Ahn
, Gi Dae Park
, Yun Chan Kang^*
, Jong Heun Lee

^*Corresponding author for this work

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

55 Citations (Scopus)

Abstract

Phase-pure 3-NiMoO₄ yolk-shell spheres for lithium-ion battery anodes were prepared for the first time by one-pot spray pyrolysis, and their electrochemical properties were investigated. The yolk-shellstructured 3-NiMoO₄ powders exhibited high initial discharge/charge capacities (1634/1253 mA h g¹) at a current density of 1000 mAg¹. After 200 cycles, these powders exhibited a high discharge capacity of 1292 mAhg¹, whereas the initial discharge capacity (1341 mAhg¹) of the filled structured NiMoO₄ powders was dramatically decreased to 479 mAhg¹. The significant enhancement of the cycling performance of the 3-NiMoO₄ powders with ultrafine crystallite size was attributed to the structural stability of the yolk-shell structure.

Original language	English
Pages (from-to)	102-110
Number of pages	9
Journal	Electrochimica Acta
Volume	174
Issue number	1
DOIs	https://doi.org/10.1016/j.electacta.2015.05.149
Publication status	Published - 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Energy conversion
Energy storage materials
Lithium ion batteries
Nanostructures
Synthesis design

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

Access to Document

10.1016/j.electacta.2015.05.149

Cite this

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title = "Phase-pure β-NiMoO4 yolk-shell spheres for high-performance anode materials in lithium-ion batteries",

abstract = "Phase-pure 3-NiMoO4 yolk-shell spheres for lithium-ion battery anodes were prepared for the first time by one-pot spray pyrolysis, and their electrochemical properties were investigated. The yolk-shellstructured 3-NiMoO4 powders exhibited high initial discharge/charge capacities (1634/1253 mA h g1) at a current density of 1000 mAg1. After 200 cycles, these powders exhibited a high discharge capacity of 1292 mAhg1, whereas the initial discharge capacity (1341 mAhg1) of the filled structured NiMoO4 powders was dramatically decreased to 479 mAhg1. The significant enhancement of the cycling performance of the 3-NiMoO4 powders with ultrafine crystallite size was attributed to the structural stability of the yolk-shell structure.",

keywords = "Energy conversion, Energy storage materials, Lithium ion batteries, Nanostructures, Synthesis design",

author = "Ahn, \{Jee Hyun\} and Park, \{Gi Dae\} and Kang, \{Yun Chan\} and Lee, \{Jong Heun\}",

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AU - Ahn, Jee Hyun

AU - Park, Gi Dae

AU - Kang, Yun Chan

AU - Lee, Jong Heun

PY - 2015

Y1 - 2015

N2 - Phase-pure 3-NiMoO4 yolk-shell spheres for lithium-ion battery anodes were prepared for the first time by one-pot spray pyrolysis, and their electrochemical properties were investigated. The yolk-shellstructured 3-NiMoO4 powders exhibited high initial discharge/charge capacities (1634/1253 mA h g1) at a current density of 1000 mAg1. After 200 cycles, these powders exhibited a high discharge capacity of 1292 mAhg1, whereas the initial discharge capacity (1341 mAhg1) of the filled structured NiMoO4 powders was dramatically decreased to 479 mAhg1. The significant enhancement of the cycling performance of the 3-NiMoO4 powders with ultrafine crystallite size was attributed to the structural stability of the yolk-shell structure.

AB - Phase-pure 3-NiMoO4 yolk-shell spheres for lithium-ion battery anodes were prepared for the first time by one-pot spray pyrolysis, and their electrochemical properties were investigated. The yolk-shellstructured 3-NiMoO4 powders exhibited high initial discharge/charge capacities (1634/1253 mA h g1) at a current density of 1000 mAg1. After 200 cycles, these powders exhibited a high discharge capacity of 1292 mAhg1, whereas the initial discharge capacity (1341 mAhg1) of the filled structured NiMoO4 powders was dramatically decreased to 479 mAhg1. The significant enhancement of the cycling performance of the 3-NiMoO4 powders with ultrafine crystallite size was attributed to the structural stability of the yolk-shell structure.

KW - Energy conversion

KW - Energy storage materials

KW - Lithium ion batteries

KW - Nanostructures

KW - Synthesis design

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