Structure and electrochemical properties of LiNi0.5Mn 1.5O4 epitaxial thin film electrodes

Hiroaki Konishi; Kota Suzuki; Sou Taminato; Kyungsu Kim; Sangryun Kim; Jaemin Lim; Masaaki Hirayama; Ryoji Kanno

doi:10.1016/j.jpowsour.2013.07.051

Structure and electrochemical properties of LiNi_0.5Mn _1.5O₄ epitaxial thin film electrodes

Hiroaki Konishi, Kota Suzuki, Sou Taminato, Kyungsu Kim, Sangryun Kim, Jaemin Lim, Masaaki Hirayama, Ryoji Kanno

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

30 Citations (Scopus)

Abstract

The structure and electrochemical properties of epitaxial thin film LiNi_0.5Mn_1.5O₄ electrodes are investigated for lithium ion secondary batteries applications. The orientation and thickness of the LiNi_0.5Mn_1.5O₄ films are controlled by changing the substrate orientation and the pulse laser deposition time, respectively. The lattice parameters of the films increase with film thickness and the manganese valence decreases without any change in the nickel valence. Regardless of their orientation, all the films exhibit reversible capacities of 80-130 mAh g^-1. The dependence of the discharge capacity on film thickness indicates a nanosize effect. The electrochemical properties of the high voltage spinel system are significantly dependent on their electronic properties, lattice orientations, and film thicknesses of the electrodes.

Original language	English
Pages (from-to)	365-370
Number of pages	6
Journal	Journal of Power Sources
Volume	246
DOIs	https://doi.org/10.1016/j.jpowsour.2013.07.051
Publication status	Published - 2014 Jan 1
Externally published	Yes

Keywords

Epitaxial thin film
High voltage positive electrode
LiNiMnO
Lithium ion battery
Surface structure

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2013.07.051

Cite this

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title = "Structure and electrochemical properties of LiNi0.5Mn 1.5O4 epitaxial thin film electrodes",

abstract = "The structure and electrochemical properties of epitaxial thin film LiNi0.5Mn1.5O4 electrodes are investigated for lithium ion secondary batteries applications. The orientation and thickness of the LiNi0.5Mn1.5O4 films are controlled by changing the substrate orientation and the pulse laser deposition time, respectively. The lattice parameters of the films increase with film thickness and the manganese valence decreases without any change in the nickel valence. Regardless of their orientation, all the films exhibit reversible capacities of 80-130 mAh g-1. The dependence of the discharge capacity on film thickness indicates a nanosize effect. The electrochemical properties of the high voltage spinel system are significantly dependent on their electronic properties, lattice orientations, and film thicknesses of the electrodes.",

keywords = "Epitaxial thin film, High voltage positive electrode, LiNiMnO, Lithium ion battery, Surface structure",

author = "Hiroaki Konishi and Kota Suzuki and Sou Taminato and Kyungsu Kim and Sangryun Kim and Jaemin Lim and Masaaki Hirayama and Ryoji Kanno",

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T1 - Structure and electrochemical properties of LiNi0.5Mn 1.5O4 epitaxial thin film electrodes

AU - Konishi, Hiroaki

AU - Suzuki, Kota

AU - Taminato, Sou

AU - Kim, Kyungsu

AU - Kim, Sangryun

AU - Lim, Jaemin

AU - Hirayama, Masaaki

AU - Kanno, Ryoji

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The structure and electrochemical properties of epitaxial thin film LiNi0.5Mn1.5O4 electrodes are investigated for lithium ion secondary batteries applications. The orientation and thickness of the LiNi0.5Mn1.5O4 films are controlled by changing the substrate orientation and the pulse laser deposition time, respectively. The lattice parameters of the films increase with film thickness and the manganese valence decreases without any change in the nickel valence. Regardless of their orientation, all the films exhibit reversible capacities of 80-130 mAh g-1. The dependence of the discharge capacity on film thickness indicates a nanosize effect. The electrochemical properties of the high voltage spinel system are significantly dependent on their electronic properties, lattice orientations, and film thicknesses of the electrodes.

AB - The structure and electrochemical properties of epitaxial thin film LiNi0.5Mn1.5O4 electrodes are investigated for lithium ion secondary batteries applications. The orientation and thickness of the LiNi0.5Mn1.5O4 films are controlled by changing the substrate orientation and the pulse laser deposition time, respectively. The lattice parameters of the films increase with film thickness and the manganese valence decreases without any change in the nickel valence. Regardless of their orientation, all the films exhibit reversible capacities of 80-130 mAh g-1. The dependence of the discharge capacity on film thickness indicates a nanosize effect. The electrochemical properties of the high voltage spinel system are significantly dependent on their electronic properties, lattice orientations, and film thicknesses of the electrodes.

KW - Epitaxial thin film

KW - High voltage positive electrode

KW - LiNiMnO

KW - Lithium ion battery

KW - Surface structure

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