A nanocomposite of Li2MnO3 coated by FePO4 as cathode material for lithium ion batteries

Faxing Wang; Shiying Xiao; Minxia Li; Xiaowei Wang; Yusong Zhu; Yuping Wu; Akihiko Shirakawa; Jun Peng

doi:10.1016/j.jpowsour.2015.04.034

A nanocomposite of Li₂MnO₃ coated by FePO₄ as cathode material for lithium ion batteries

Faxing Wang, Shiying Xiao, Minxia Li, Xiaowei Wang, Yusong Zhu, Yuping Wu, Akihiko Shirakawa, Jun Peng

School of energy science and engineering

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

56 Scopus citations

Abstract

A core-shell nanocomposite of Li₂MnO₃ is synthesized by coating FePO₄ nanoparticles on the surface of our prepared Li₂MnO₃ nanoplate. This core-shell structured nanocomposite can eliminate the large irreversible capacity for the Li-rich materials. The FePO₄ on the surface of Li₂MnO₃ can also serve as a host for Li ions that deintercalate from Li₂MnO₃ during the initial charging process and the initial Coulomb efficiency can be 100%. The composite as the cathode material for lithium ion batteries exhibits an attractive reversible capacity of 180 mAh g^-1. Its cycling performance is also stable without any evident capacity fading, even when cycling in the high voltage range of 2.0-4.8 V vs. Li⁺/Li. This nanocomposite is free of Co- and Ni, different from other Li-rich Li₂MnO₃ based cathode materials, and shows great attraction for applications of low cost cathode materials for lithium ion batteries.

Original language	English
Pages (from-to)	416-421
Number of pages	6
Journal	Journal of Power Sources
Volume	287
DOIs	https://doi.org/10.1016/j.jpowsour.2015.04.034
State	Published - 1 Aug 2015

Keywords

Cathode
Coating
Irreversible capacity
Lithium ion battery
Nanoplate

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2015.04.034

Cite this

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title = "A nanocomposite of Li2MnO3 coated by FePO4 as cathode material for lithium ion batteries",

abstract = "A core-shell nanocomposite of Li2MnO3 is synthesized by coating FePO4 nanoparticles on the surface of our prepared Li2MnO3 nanoplate. This core-shell structured nanocomposite can eliminate the large irreversible capacity for the Li-rich materials. The FePO4 on the surface of Li2MnO3 can also serve as a host for Li ions that deintercalate from Li2MnO3 during the initial charging process and the initial Coulomb efficiency can be 100%. The composite as the cathode material for lithium ion batteries exhibits an attractive reversible capacity of 180 mAh g-1. Its cycling performance is also stable without any evident capacity fading, even when cycling in the high voltage range of 2.0-4.8 V vs. Li+/Li. This nanocomposite is free of Co- and Ni, different from other Li-rich Li2MnO3 based cathode materials, and shows great attraction for applications of low cost cathode materials for lithium ion batteries.",

keywords = "Cathode, Coating, Irreversible capacity, Lithium ion battery, Nanoplate",

author = "Faxing Wang and Shiying Xiao and Minxia Li and Xiaowei Wang and Yusong Zhu and Yuping Wu and Akihiko Shirakawa and Jun Peng",

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year = "2015",

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T1 - A nanocomposite of Li2MnO3 coated by FePO4 as cathode material for lithium ion batteries

AU - Wang, Faxing

AU - Xiao, Shiying

AU - Li, Minxia

AU - Wang, Xiaowei

AU - Zhu, Yusong

AU - Wu, Yuping

AU - Shirakawa, Akihiko

AU - Peng, Jun

PY - 2015/8/1

Y1 - 2015/8/1

N2 - A core-shell nanocomposite of Li2MnO3 is synthesized by coating FePO4 nanoparticles on the surface of our prepared Li2MnO3 nanoplate. This core-shell structured nanocomposite can eliminate the large irreversible capacity for the Li-rich materials. The FePO4 on the surface of Li2MnO3 can also serve as a host for Li ions that deintercalate from Li2MnO3 during the initial charging process and the initial Coulomb efficiency can be 100%. The composite as the cathode material for lithium ion batteries exhibits an attractive reversible capacity of 180 mAh g-1. Its cycling performance is also stable without any evident capacity fading, even when cycling in the high voltage range of 2.0-4.8 V vs. Li+/Li. This nanocomposite is free of Co- and Ni, different from other Li-rich Li2MnO3 based cathode materials, and shows great attraction for applications of low cost cathode materials for lithium ion batteries.

AB - A core-shell nanocomposite of Li2MnO3 is synthesized by coating FePO4 nanoparticles on the surface of our prepared Li2MnO3 nanoplate. This core-shell structured nanocomposite can eliminate the large irreversible capacity for the Li-rich materials. The FePO4 on the surface of Li2MnO3 can also serve as a host for Li ions that deintercalate from Li2MnO3 during the initial charging process and the initial Coulomb efficiency can be 100%. The composite as the cathode material for lithium ion batteries exhibits an attractive reversible capacity of 180 mAh g-1. Its cycling performance is also stable without any evident capacity fading, even when cycling in the high voltage range of 2.0-4.8 V vs. Li+/Li. This nanocomposite is free of Co- and Ni, different from other Li-rich Li2MnO3 based cathode materials, and shows great attraction for applications of low cost cathode materials for lithium ion batteries.

KW - Cathode

KW - Coating

KW - Irreversible capacity

KW - Lithium ion battery

KW - Nanoplate

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