Performance improvement of Li-rich layer-structured Li1.2Mn0.54Ni0.13Co0.13O2 by integration with spinel LiNi0.5Mn1.5O4

Xin Feng; Zhenzhong Yang; Daichun Tang; Qingyu Kong; Lin Gu; Zhaoxiang Wang; Liquan Chen

doi:10.1039/c4cp04087b

Performance improvement of Li-rich layer-structured Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ by integration with spinel LiNi_0.5Mn_1.5O₄

Xin Feng, Zhenzhong Yang, Daichun Tang, Qingyu Kong, Lin Gu, Zhaoxiang Wang, Liquan Chen

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

81 Scopus citations

Abstract

Li-rich layered Li_1+xMn_yM_1-x-yO₂ (or denoted xLi₂MnO₃·(1 - x)LiMO₂, M = Ni, Co, Mn, etc.) are promising cathode materials for high energy-density Li-ion batteries. However, their commercial applications suffer from problems such as a drop in the capacity and discharge voltage during cycling. In this work, the cycling performance of a layered oxide Li_1.2Ni_0.13Co_0.13Mn_0.54O₂ is improved by integration with spinel LiNi_0.5Mn_1.5O₄ to obtain a layered-spinel composite. Characterization by powder X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) as well as cyclic voltammetry (CV) indicates that delayed degradation of layered Li₂MnO₃ and the suppressed growth of LiMn₂O₄-like spinel are responsible for the performance improvement.

Original language	English
Pages (from-to)	1257-1264
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	2
DOIs	https://doi.org/10.1039/c4cp04087b
State	Published - 14 Jan 2015
Externally published	Yes

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title = "Performance improvement of Li-rich layer-structured Li1.2Mn0.54Ni0.13Co0.13O2 by integration with spinel LiNi0.5Mn1.5O4",

abstract = "Li-rich layered Li1+xMnyM1-x-yO2 (or denoted xLi2MnO3·(1 - x)LiMO2, M = Ni, Co, Mn, etc.) are promising cathode materials for high energy-density Li-ion batteries. However, their commercial applications suffer from problems such as a drop in the capacity and discharge voltage during cycling. In this work, the cycling performance of a layered oxide Li1.2Ni0.13Co0.13Mn0.54O2 is improved by integration with spinel LiNi0.5Mn1.5O4 to obtain a layered-spinel composite. Characterization by powder X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) as well as cyclic voltammetry (CV) indicates that delayed degradation of layered Li2MnO3 and the suppressed growth of LiMn2O4-like spinel are responsible for the performance improvement.",

author = "Xin Feng and Zhenzhong Yang and Daichun Tang and Qingyu Kong and Lin Gu and Zhaoxiang Wang and Liquan Chen",

note = "Publisher Copyright: {\textcopyright} the Owner Societies 2015.",

year = "2015",

month = jan,

day = "14",

doi = "10.1039/c4cp04087b",

language = "英语",

volume = "17",

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TY - JOUR

T1 - Performance improvement of Li-rich layer-structured Li1.2Mn0.54Ni0.13Co0.13O2 by integration with spinel LiNi0.5Mn1.5O4

AU - Feng, Xin

AU - Yang, Zhenzhong

AU - Tang, Daichun

AU - Kong, Qingyu

AU - Gu, Lin

AU - Wang, Zhaoxiang

AU - Chen, Liquan

PY - 2015/1/14

Y1 - 2015/1/14

N2 - Li-rich layered Li1+xMnyM1-x-yO2 (or denoted xLi2MnO3·(1 - x)LiMO2, M = Ni, Co, Mn, etc.) are promising cathode materials for high energy-density Li-ion batteries. However, their commercial applications suffer from problems such as a drop in the capacity and discharge voltage during cycling. In this work, the cycling performance of a layered oxide Li1.2Ni0.13Co0.13Mn0.54O2 is improved by integration with spinel LiNi0.5Mn1.5O4 to obtain a layered-spinel composite. Characterization by powder X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) as well as cyclic voltammetry (CV) indicates that delayed degradation of layered Li2MnO3 and the suppressed growth of LiMn2O4-like spinel are responsible for the performance improvement.

AB - Li-rich layered Li1+xMnyM1-x-yO2 (or denoted xLi2MnO3·(1 - x)LiMO2, M = Ni, Co, Mn, etc.) are promising cathode materials for high energy-density Li-ion batteries. However, their commercial applications suffer from problems such as a drop in the capacity and discharge voltage during cycling. In this work, the cycling performance of a layered oxide Li1.2Ni0.13Co0.13Mn0.54O2 is improved by integration with spinel LiNi0.5Mn1.5O4 to obtain a layered-spinel composite. Characterization by powder X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) as well as cyclic voltammetry (CV) indicates that delayed degradation of layered Li2MnO3 and the suppressed growth of LiMn2O4-like spinel are responsible for the performance improvement.

UR - https://www.scopus.com/pages/publications/84949117815

U2 - 10.1039/c4cp04087b

DO - 10.1039/c4cp04087b

M3 - 文章

AN - SCOPUS:84949117815

SN - 1463-9076

VL - 17

SP - 1257

EP - 1264

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 2

ER -

Performance improvement of Li-rich layer-structured Li_1.2Mn_0.54Ni_0.13Co_0.13O₂ by integration with spinel LiNi_0.5Mn_1.5O₄

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