The effects of Na doping on performance of layered Li 1.1 - XNax[Ni0.2Co0.3Mn 0.4]O2 materials for lithium secondary batteries

S. H. Park; S. S. Shin; Y. K. Sun

doi:10.1016/j.matchemphys.2005.06.014

The effects of Na doping on performance of layered Li _{1.1 - X}Na_x[Ni_0.2Co_0.3Mn _0.4]O₂ materials for lithium secondary batteries

S. H. Park
, S. S. Shin
, Y. K. Sun^*

^*Corresponding author for this work

Division of Chemical Engineering

Hanyang University

Research output: Contribution to journal › Journal article › peer-review

46 Scopus citations

Abstract

Layered Li_{1.1 - x}Na_x[Ni_0.2Co _0.3Mn_0.4]O₂ (x = 0, 0.05, 0.1 and 0.2) materials with high homogeneity and high crystallinity were prepared by a sol-gel method. Structural and electrochemical properties of the Li _{1.1 - x}Na_x[Ni_0.2Co_0.3Mn _0.4]O₂ materials were characterized by means of powder X-ray diffraction, and galvanostatic charge/discharge cycling. Na-doped samples had a phase-pure layered structure with a space group of R3̄m (No. 166). Although, the discharge capacity decreased linearly with increases of Na-substitution, only a few of the Na-doped (x = 0.05, 0.1) electrodes exhibited superior rate capability and good capacity retention.

Original language	English
Pages (from-to)	218-221
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	95
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2005.06.014
State	Published - 2006.02.10

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SDG 7 Affordable and Clean Energy

Keywords

Layered material
Lithium secondary batteries
Na doping
Sol-gel method

Access to Document

10.1016/j.matchemphys.2005.06.014

Cite this

@article{b63d6e5fad1f4a60ac3fb766acbb8258,

title = "The effects of Na doping on performance of layered Li 1.1 - XNax[Ni0.2Co0.3Mn 0.4]O2 materials for lithium secondary batteries",

abstract = "Layered Li1.1 - xNax[Ni0.2Co 0.3Mn0.4]O2 (x = 0, 0.05, 0.1 and 0.2) materials with high homogeneity and high crystallinity were prepared by a sol-gel method. Structural and electrochemical properties of the Li 1.1 - xNax[Ni0.2Co0.3Mn 0.4]O2 materials were characterized by means of powder X-ray diffraction, and galvanostatic charge/discharge cycling. Na-doped samples had a phase-pure layered structure with a space group of R{\=3}m (No. 166). Although, the discharge capacity decreased linearly with increases of Na-substitution, only a few of the Na-doped (x = 0.05, 0.1) electrodes exhibited superior rate capability and good capacity retention.",

keywords = "Layered material, Lithium secondary batteries, Na doping, Sol-gel method",

author = "Park, \{S. H.\} and Shin, \{S. S.\} and Sun, \{Y. K.\}",

year = "2006",

month = feb,

day = "10",

doi = "10.1016/j.matchemphys.2005.06.014",

language = "English",

volume = "95",

pages = "218--221",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

number = "2-3",

}

TY - JOUR

T1 - The effects of Na doping on performance of layered Li 1.1 - XNax[Ni0.2Co0.3Mn 0.4]O2 materials for lithium secondary batteries

AU - Park, S. H.

AU - Shin, S. S.

AU - Sun, Y. K.

PY - 2006/2/10

Y1 - 2006/2/10

N2 - Layered Li1.1 - xNax[Ni0.2Co 0.3Mn0.4]O2 (x = 0, 0.05, 0.1 and 0.2) materials with high homogeneity and high crystallinity were prepared by a sol-gel method. Structural and electrochemical properties of the Li 1.1 - xNax[Ni0.2Co0.3Mn 0.4]O2 materials were characterized by means of powder X-ray diffraction, and galvanostatic charge/discharge cycling. Na-doped samples had a phase-pure layered structure with a space group of R3̄m (No. 166). Although, the discharge capacity decreased linearly with increases of Na-substitution, only a few of the Na-doped (x = 0.05, 0.1) electrodes exhibited superior rate capability and good capacity retention.

AB - Layered Li1.1 - xNax[Ni0.2Co 0.3Mn0.4]O2 (x = 0, 0.05, 0.1 and 0.2) materials with high homogeneity and high crystallinity were prepared by a sol-gel method. Structural and electrochemical properties of the Li 1.1 - xNax[Ni0.2Co0.3Mn 0.4]O2 materials were characterized by means of powder X-ray diffraction, and galvanostatic charge/discharge cycling. Na-doped samples had a phase-pure layered structure with a space group of R3̄m (No. 166). Although, the discharge capacity decreased linearly with increases of Na-substitution, only a few of the Na-doped (x = 0.05, 0.1) electrodes exhibited superior rate capability and good capacity retention.

KW - Layered material

KW - Lithium secondary batteries

KW - Na doping

KW - Sol-gel method

UR - https://www.scopus.com/pages/publications/27644435942

U2 - 10.1016/j.matchemphys.2005.06.014

DO - 10.1016/j.matchemphys.2005.06.014

M3 - Journal article

AN - SCOPUS:27644435942

SN - 0254-0584

VL - 95

SP - 218

EP - 221

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -