Surface modification of spinel LiMn 2O 4 with Y 2O 3 for lithium-ion battery

Ying Bai; Feng Wu; Hua Tong Yang; Yu Zhong; Chuan Wu

doi:10.4028/www.scientific.net/AMR.391-392.1069

Surface modification of spinel LiMn ₂O ₄ with Y ₂O ₃ for lithium-ion battery

Ying Bai
, Feng Wu
, Hua Tong Yang
, Yu Zhong
, Chuan Wu^*

^*Corresponding author for this work

Beijing Institute of Technology
Tianjin Lishen Battery Joint-Stock Co., Ltd.
State Intellectual Property Office of the Peoples Republic of China

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

9 Citations (Scopus)

Abstract

Spinel LiMn ₂O ₄ was modified with Y ₂O ₃ coating by a chemical process. The crystal structures of the as-prepared samples were investigated by X-ray diffraction (XRD). The charge/discharge characteristics of the modified samples were evaluated at different rates between 3.0 and 4.4V. The discharge capacities of 2.0 wt.% Y ₂O ₃-coated LiMn ₂O ₄ are 116 mAh·g ^-1, 99.7mAh·g ^-1, 93.3mAh·g ^-1 and 82.9mAh·g ^-1 at 0.1C, 0.5C, 1C and 2C rates (at 20°C). The cycle abilities improvement of the spinel LiMn ₂O ₄ coated with Y ₂O ₃ are demonstrated at elevated temperature (55°C) and high rates (2C). From the analysis of electrochemical impedance spectroscopy (EIS), the improvement of cycle ability may be attributed to the suppression on the formation of the passivating films and the reduction of Mn dissolution, which result from the surface modification with Y ₂O ₃.

Original language	English
Title of host publication	Chemical Engineering and Material Properties
Pages	1069-1074
Number of pages	6
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.391-392.1069
Publication status	Published - 2012
Externally published	Yes
Event	2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011 - Shenyang, Liaoning, China Duration: 4 Nov 2011 → 6 Nov 2011

Publication series

Name	Advanced Materials Research
Volume	391-392
ISSN (Print)	1022-6680

Conference

Conference	2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011
Country/Territory	China
City	Shenyang, Liaoning
Period	4/11/11 → 6/11/11

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Coating
Lithium ion battery
Spinel LiMn O
Surface modification
Y O

Access to Document

10.4028/www.scientific.net/AMR.391-392.1069

Cite this

@inproceedings{b9c9db2643f5422b92710993f95d0bb7,

title = "Surface modification of spinel LiMn 2O 4 with Y 2O 3 for lithium-ion battery",

abstract = "Spinel LiMn 2O 4 was modified with Y 2O 3 coating by a chemical process. The crystal structures of the as-prepared samples were investigated by X-ray diffraction (XRD). The charge/discharge characteristics of the modified samples were evaluated at different rates between 3.0 and 4.4V. The discharge capacities of 2.0 wt.\% Y 2O 3-coated LiMn 2O 4 are 116 mAh·g -1, 99.7mAh·g -1, 93.3mAh·g -1 and 82.9mAh·g -1 at 0.1C, 0.5C, 1C and 2C rates (at 20°C). The cycle abilities improvement of the spinel LiMn 2O 4 coated with Y 2O 3 are demonstrated at elevated temperature (55°C) and high rates (2C). From the analysis of electrochemical impedance spectroscopy (EIS), the improvement of cycle ability may be attributed to the suppression on the formation of the passivating films and the reduction of Mn dissolution, which result from the surface modification with Y 2O 3.",

keywords = "Coating, Lithium ion battery, Spinel LiMn O, Surface modification, Y O",

author = "Ying Bai and Feng Wu and Yang, \{Hua Tong\} and Yu Zhong and Chuan Wu",

year = "2012",

doi = "10.4028/www.scientific.net/AMR.391-392.1069",

language = "English",

isbn = "9783037853337",

series = "Advanced Materials Research",

pages = "1069--1074",

booktitle = "Chemical Engineering and Material Properties",

note = "2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011 ; Conference date: 04-11-2011 Through 06-11-2011",

}

Bai, Y, Wu, F, Yang, HT, Zhong, Y & Wu, C 2012, Surface modification of spinel LiMn ₂O ₄ with Y ₂O ₃ for lithium-ion battery. in Chemical Engineering and Material Properties. Advanced Materials Research, vol. 391-392, pp. 1069-1074, 2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011, Shenyang, Liaoning, China, 4/11/11. https://doi.org/10.4028/www.scientific.net/AMR.391-392.1069

TY - GEN

T1 - Surface modification of spinel LiMn 2O 4 with Y 2O 3 for lithium-ion battery

AU - Bai, Ying

AU - Wu, Feng

AU - Yang, Hua Tong

AU - Zhong, Yu

AU - Wu, Chuan

PY - 2012

Y1 - 2012

N2 - Spinel LiMn 2O 4 was modified with Y 2O 3 coating by a chemical process. The crystal structures of the as-prepared samples were investigated by X-ray diffraction (XRD). The charge/discharge characteristics of the modified samples were evaluated at different rates between 3.0 and 4.4V. The discharge capacities of 2.0 wt.% Y 2O 3-coated LiMn 2O 4 are 116 mAh·g -1, 99.7mAh·g -1, 93.3mAh·g -1 and 82.9mAh·g -1 at 0.1C, 0.5C, 1C and 2C rates (at 20°C). The cycle abilities improvement of the spinel LiMn 2O 4 coated with Y 2O 3 are demonstrated at elevated temperature (55°C) and high rates (2C). From the analysis of electrochemical impedance spectroscopy (EIS), the improvement of cycle ability may be attributed to the suppression on the formation of the passivating films and the reduction of Mn dissolution, which result from the surface modification with Y 2O 3.

AB - Spinel LiMn 2O 4 was modified with Y 2O 3 coating by a chemical process. The crystal structures of the as-prepared samples were investigated by X-ray diffraction (XRD). The charge/discharge characteristics of the modified samples were evaluated at different rates between 3.0 and 4.4V. The discharge capacities of 2.0 wt.% Y 2O 3-coated LiMn 2O 4 are 116 mAh·g -1, 99.7mAh·g -1, 93.3mAh·g -1 and 82.9mAh·g -1 at 0.1C, 0.5C, 1C and 2C rates (at 20°C). The cycle abilities improvement of the spinel LiMn 2O 4 coated with Y 2O 3 are demonstrated at elevated temperature (55°C) and high rates (2C). From the analysis of electrochemical impedance spectroscopy (EIS), the improvement of cycle ability may be attributed to the suppression on the formation of the passivating films and the reduction of Mn dissolution, which result from the surface modification with Y 2O 3.

KW - Coating

KW - Lithium ion battery

KW - Spinel LiMn O

KW - Surface modification

KW - Y O

UR - https://www.scopus.com/pages/publications/84455199985

U2 - 10.4028/www.scientific.net/AMR.391-392.1069

DO - 10.4028/www.scientific.net/AMR.391-392.1069

M3 - Conference contribution

AN - SCOPUS:84455199985

SN - 9783037853337

T3 - Advanced Materials Research

SP - 1069

EP - 1074

BT - Chemical Engineering and Material Properties

T2 - 2011 International Symposium on Chemical Engineering and Material Properties, ISCEMP 2011

Y2 - 4 November 2011 through 6 November 2011

ER -