Comparison of Electrochemical Properties for Lithium-rich Cathode Material Li[Li0.2Mn0.54Ni0.13Co0.13]O2 Prepared by Two Methods

被引：0

作者：

Yang, Puheng ^{[1
]}

Zhang, Shichao ^{[1
]}

Wei, Xin ^{[1
]}

Meng, Juan ^{[1
]}

Xing, Yalan ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2015年 / 10卷 / 11期

关键词：

Li-ion battery; Li-rich material; Sol-gel; Gel-combustion; ION BATTERIES; HIGH-CAPACITY; ANOMALOUS CAPACITY; OXYGEN LOSS; PERFORMANCE; ELECTRODES; CO; LI1.2MN0.4CO0.4O2; MECHANISM; LI2MNO3;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 materials for lithium-ion battery have been successfully synthesized by gel-combustion (GC) and sol-gel (SG) methods. The as-prepared materials were characterized by XRD, SEM and electrochemical measurements. The XRD patterns show that the Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 materials obtained from different methods both form a pure phase with well crystallization. SEM images present that Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 obtained from gel-combustion method (GC-material) exhibited the relatively uniform distribution in particle size. The results of electrochemical measurements indicate that the GC-material showed the higher discharge capacity at 0.1C and lower solid electrolyte interface resistance and charge transfer resistance, while, the cycling stability of GC-material tested at 0.1C is relatively poor as compared to that of Li[Li0.2Mn0.54Ni0.13Co0.13]O-2 obtained from sol-gel method (SG-material).

引用

页码：9424 / 9432

页数：9

共 25 条

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