A superior Li2SiO3-Composited LiNi0.5Mn1.5O4Cathode for High-Voltage and High-Performance Lithium-ion Batteries

Yunlong Deng; Jirong Mou; Huali Wu; Na Jiang; Qiaoji Zheng; Kwok Ho Lam; Chenggang Xu; Dunmin Lin

doi:10.1016/j.electacta.2017.03.066

A superior Li₂SiO₃-Composited LiNi_0.5Mn_1.5O₄Cathode for High-Voltage and High-Performance Lithium-ion Batteries

Yunlong Deng, Jirong Mou, Huali Wu, Na Jiang, Qiaoji Zheng, Kwok Ho Lam, Chenggang Xu, Dunmin Lin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

The effects of Li2SiO3on the phase structure, morphology and electrochemical performance of the materials were investigated. As x increases, the structure and electrochemical properties of the materials are tailored. The cathode material with x = 0.10 delivers ultrahigh initial discharge capacity ∼150.3 mAh g−1, which is 24.4% larger than that of the pristine LiNi0.5Mn1.5O4(120.8 mAh g−1). The Li2SiO3-composited LiNi0.5Mn1.5O4materials present an enhanced cycling stability, better rate performance and lower charge transfer resistance. These excellent electrochemical properties indicate that the compositing of fast Li+-ion conductor Li2SiO3is an effective method to enhance the electrochemical performance of LiNi0.5Mn1.5O4-based cathode materials.

Original language	English
Pages (from-to)	19-31
Number of pages	13
Journal	Electrochimica Acta
Volume	235
DOIs	https://doi.org/10.1016/j.electacta.2017.03.066
Publication status	Published - 1 May 2017

Keywords

Composite cathode
Electrochemical performance
Fast Li -ion conductor +
Li SiO 2 3
LiNi Mn O 0.5 1.5 4

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

UN SDGs

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

More information

10.1016/j.electacta.2017.03.066

Cite this

@article{86811c253f45416b87f23cf8b7e811c1,

title = "A superior Li2SiO3-Composited LiNi0.5Mn1.5O4Cathode for High-Voltage and High-Performance Lithium-ion Batteries",

abstract = "The effects of Li2SiO3on the phase structure, morphology and electrochemical performance of the materials were investigated. As x increases, the structure and electrochemical properties of the materials are tailored. The cathode material with x = 0.10 delivers ultrahigh initial discharge capacity ∼150.3 mAh g−1, which is 24.4% larger than that of the pristine LiNi0.5Mn1.5O4(120.8 mAh g−1). The Li2SiO3-composited LiNi0.5Mn1.5O4materials present an enhanced cycling stability, better rate performance and lower charge transfer resistance. These excellent electrochemical properties indicate that the compositing of fast Li+-ion conductor Li2SiO3is an effective method to enhance the electrochemical performance of LiNi0.5Mn1.5O4-based cathode materials.",

keywords = "Composite cathode, Electrochemical performance, Fast Li -ion conductor +, Li SiO 2 3, LiNi Mn O 0.5 1.5 4",

author = "Yunlong Deng and Jirong Mou and Huali Wu and Na Jiang and Qiaoji Zheng and Lam, {Kwok Ho} and Chenggang Xu and Dunmin Lin",

year = "2017",

month = may,

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doi = "10.1016/j.electacta.2017.03.066",

language = "English",

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journal = "Electrochimica Acta",

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TY - JOUR

T1 - A superior Li2SiO3-Composited LiNi0.5Mn1.5O4Cathode for High-Voltage and High-Performance Lithium-ion Batteries

AU - Deng, Yunlong

AU - Mou, Jirong

AU - Wu, Huali

AU - Jiang, Na

AU - Zheng, Qiaoji

AU - Lam, Kwok Ho

AU - Xu, Chenggang

AU - Lin, Dunmin

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The effects of Li2SiO3on the phase structure, morphology and electrochemical performance of the materials were investigated. As x increases, the structure and electrochemical properties of the materials are tailored. The cathode material with x = 0.10 delivers ultrahigh initial discharge capacity ∼150.3 mAh g−1, which is 24.4% larger than that of the pristine LiNi0.5Mn1.5O4(120.8 mAh g−1). The Li2SiO3-composited LiNi0.5Mn1.5O4materials present an enhanced cycling stability, better rate performance and lower charge transfer resistance. These excellent electrochemical properties indicate that the compositing of fast Li+-ion conductor Li2SiO3is an effective method to enhance the electrochemical performance of LiNi0.5Mn1.5O4-based cathode materials.

AB - The effects of Li2SiO3on the phase structure, morphology and electrochemical performance of the materials were investigated. As x increases, the structure and electrochemical properties of the materials are tailored. The cathode material with x = 0.10 delivers ultrahigh initial discharge capacity ∼150.3 mAh g−1, which is 24.4% larger than that of the pristine LiNi0.5Mn1.5O4(120.8 mAh g−1). The Li2SiO3-composited LiNi0.5Mn1.5O4materials present an enhanced cycling stability, better rate performance and lower charge transfer resistance. These excellent electrochemical properties indicate that the compositing of fast Li+-ion conductor Li2SiO3is an effective method to enhance the electrochemical performance of LiNi0.5Mn1.5O4-based cathode materials.

KW - Composite cathode

KW - Electrochemical performance

KW - Fast Li -ion conductor +

KW - Li SiO 2 3

KW - LiNi Mn O 0.5 1.5 4

UR - http://www.scopus.com/inward/record.url?scp=85015369344&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2017.03.066

DO - 10.1016/j.electacta.2017.03.066

M3 - Journal article

SN - 0013-4686

VL - 235

SP - 19

EP - 31

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -