The effect of K-Ion on the electrochemical performance of spinel LiMn2O4

Lilong Xiong; Youlong Xu; Xiang Xiao; Jie Wang; Yutao Li

doi:10.1007/s13391-014-4245-9

The effect of K-Ion on the electrochemical performance of spinel LiMn₂O₄

Lilong Xiong
, Youlong Xu
, Xiang Xiao
, Jie Wang
, Yutao Li

Xi'an Jiaotong University
University of Texas at Austin

科研成果: 期刊稿件 › 文章 › 同行评审

9 引用（Scopus）

摘要

Spinel LiMn₂O₄ is regarded as one of the cathode active materials for rechargeable lithium-ion batteries with the most potential. K⁺-ion modified LiMn₂O₄ samples are synthesized by solid-state reaction. The SEM analysis shows that the modified samples exhibit uniform particle size distribution and much better crystallinity. The modified sample K1 exhibits ionic diffusion coefficient of 1.43 × 10^-10 cm^-2 s^-1 and 2.04 × 10^-10 cm^-2 s^-1, which is much higher than that of the un-modified spinel LiMn₂O₄ sample. The electrochemical measurements show that K⁺-ion modification could effectively reduce the charge transfer resistance, improve the capacity retention and rate capacity of the spinel materials.

源语言	英语
页（从-至）	138-142
页数	5
期刊	Electronic Materials Letters
卷	11
期	1
DOI	https://doi.org/10.1007/s13391-014-4245-9
出版状态	已出版 - 1月 2015

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10.1007/s13391-014-4245-9

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abstract = "Spinel LiMn2O4 is regarded as one of the cathode active materials for rechargeable lithium-ion batteries with the most potential. K+-ion modified LiMn2O4 samples are synthesized by solid-state reaction. The SEM analysis shows that the modified samples exhibit uniform particle size distribution and much better crystallinity. The modified sample K1 exhibits ionic diffusion coefficient of 1.43 × 10-10 cm-2 s-1 and 2.04 × 10-10 cm-2 s-1, which is much higher than that of the un-modified spinel LiMn2O4 sample. The electrochemical measurements show that K+-ion modification could effectively reduce the charge transfer resistance, improve the capacity retention and rate capacity of the spinel materials.",

keywords = "Ion conductivity, Rate capability, Solid state reaction, Spinel LiMnO",

author = "Lilong Xiong and Youlong Xu and Xiang Xiao and Jie Wang and Yutao Li",

note = "Publisher Copyright: {\textcopyright} KIM and Springer.",

year = "2015",

month = jan,

doi = "10.1007/s13391-014-4245-9",

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T1 - The effect of K-Ion on the electrochemical performance of spinel LiMn2O4

AU - Xiong, Lilong

AU - Xu, Youlong

AU - Xiao, Xiang

AU - Wang, Jie

AU - Li, Yutao

N1 - Publisher Copyright: © KIM and Springer.

PY - 2015/1

Y1 - 2015/1

N2 - Spinel LiMn2O4 is regarded as one of the cathode active materials for rechargeable lithium-ion batteries with the most potential. K+-ion modified LiMn2O4 samples are synthesized by solid-state reaction. The SEM analysis shows that the modified samples exhibit uniform particle size distribution and much better crystallinity. The modified sample K1 exhibits ionic diffusion coefficient of 1.43 × 10-10 cm-2 s-1 and 2.04 × 10-10 cm-2 s-1, which is much higher than that of the un-modified spinel LiMn2O4 sample. The electrochemical measurements show that K+-ion modification could effectively reduce the charge transfer resistance, improve the capacity retention and rate capacity of the spinel materials.

AB - Spinel LiMn2O4 is regarded as one of the cathode active materials for rechargeable lithium-ion batteries with the most potential. K+-ion modified LiMn2O4 samples are synthesized by solid-state reaction. The SEM analysis shows that the modified samples exhibit uniform particle size distribution and much better crystallinity. The modified sample K1 exhibits ionic diffusion coefficient of 1.43 × 10-10 cm-2 s-1 and 2.04 × 10-10 cm-2 s-1, which is much higher than that of the un-modified spinel LiMn2O4 sample. The electrochemical measurements show that K+-ion modification could effectively reduce the charge transfer resistance, improve the capacity retention and rate capacity of the spinel materials.

KW - Ion conductivity

KW - Rate capability

KW - Solid state reaction

KW - Spinel LiMnO

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DO - 10.1007/s13391-014-4245-9

M3 - 文章

AN - SCOPUS:84922379175

SN - 1738-8090

VL - 11

SP - 138

EP - 142

JO - Electronic Materials Letters

JF - Electronic Materials Letters

IS - 1

ER -

The effect of K-Ion on the electrochemical performance of spinel LiMn2O4

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The effect of K-Ion on the electrochemical performance of spinel LiMn₂O₄