Preparation of LiNi0.5Mn1.5O4 as 5 V Cathode Materials for Lithium Ion Battery and Diffusion Performance of Li+ in the Materials

被引：0

作者：

Lu Hua-Quan ^{[1
]}

Wu Feng ^{[1
]}

Su Yue-Feng ^{[1
]}

Li Ning ^{[1
]}

Chen Shi ^{[1
]}

Bao Li-Ying ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Chem Engn & Environm, Natl Dev Ctr Hitech Green Mat, Beijing 100081, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2011年 / 32卷 / 04期

关键词：

Lithium-ion battery; Cathode material; Oxalate co-precipitation; LiNi0.5Mn1.5O4; Diffusion coefficient; NANO-CRYSTALLINE LINI0.5MN1.5O4; ELECTROCHEMICAL PERFORMANCE; COPRECIPITATION METHOD; COEFFICIENT; LIFEPO4;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

5 V cathode material LiNi0.5M1.5O4 was synthesized via an oxalate co-precipitation method, and the relationship between the structure, morphology and the electrochemical performance of the material was investigated. The results show that the sample synthesized at 900 degrees C has the best electrochemical performance. Its initial discharge capacity reaches 133.0 mA.h/g, and after cycled for 30 times, still maintains at 132.2 mA.h/g (capacity retention 99. 4%). The chemical diffusion coefficient of Li+ ion in LiNi0.5M1.5O4 cathode material was measured by potentiostatic intermittent titration technique (PITT) and electrochemical impedance spectroscopy(EIS). The chemical diffusion coefficient of Li+ ion ranges in 10(-10)-10(-11) cm(2)/s.

引用

页码：946 / 951

页数：6

共 18 条

[11] Determination of the chemical diffusion coefficient of lithium in LiFePO4
Prosini, PP
Lisi, M
Zane, D
Pasquali, M
[J]. SOLID STATE IONICS, 2002, 148 (1-2) : 45 - 51
[12] Qu Tao, 2007, Chinese Journal of Nonferrous Metals, V17, P1255
[13] Li+ ion diffusion in Li4Ti5O12 thin film electrode prepared by PVP sol-gel method
Rho, YH
Kanamura, K
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (06) : 2094 - 2100
[14] Electrochemical and structural properties of a 4.7 V-class LiNi0.5Mn1.5O4 positive electrode material prepared with a self-reaction method
Takahashi, K
Saitoh, M
Sano, M
Fujita, M
Kifune, K
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (01) : A173 - A177
[15] Wang SJ, 2009, CHEM J CHINESE U, V30, P2358
[16] Li-ion diffusion kinetics in LiFePO4 thin film prepared by radio frequency magnetron sputtering
Xie, J.
Imanishi, N.
Zhang, T.
Hirano, A.
Takeda, Y.
Yamamoto, O.
[J]. ELECTROCHIMICA ACTA, 2009, 54 (20) : 4631 - 4637
[17] Preparation and characterization of sub-micro LiNi0.5-xMn1.5+xO4 for 5V cathode materials synthesized by an ultrasonic-assisted co-precipitation method
Yi, Ting-Feng
Hu, Xin-Guo
[J]. JOURNAL OF POWER SOURCES, 2007, 167 (01) : 185 - 191
[18] Synthesis and electrochemistry of LiNixMn2-xO4
Zhong, QM
Bonakdarpour, A
Zhang, MJ
Gao, Y
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (01) : 205 - 213

← 1 2 →