Nanosized 0.3Li2MnO3•0.7LiNi1/3Mn1/3Co1/3O2 synthesized by CNTs-assisted hydrothermal method as cathode material for lithium ion battery

被引：4

作者：

Wang, Meng ^{[1
]}

Chen, Yunbo ^{[1
]}

Luo, Min ^{[1
]}

Chen, Lin ^{[1
]}

机构：

[1] China Acad Machinery Sci & Technol, Adv Manufacture Technol Ctr, Beijing 100083, Peoples R China

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2016年 / 46卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Lithium-ion battery; Cathode material; Hydrothermal treatment; Li-rich oxides; Carbon nanotubes; HIGH-CAPACITY; ELECTROCHEMICAL PERFORMANCE; LI-RICH; ANOMALOUS CAPACITY; POSITIVE ELECTRODE; CYCLING STABILITY; RATE CAPABILITY; CO ELECTRODES; IN-SITU; MN;

D O I：

10.1007/s10800-016-0964-y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nano-sized 0.3Li(2)MnO(3)center dot 0.7LiNi(1/3)Mn(1/3)Co(1/3)O(2) as novel cathode material was synthesized by a hydrothermal process with carbon nanotubes as template. The resulting 0.3Li(2)MnO(3)center dot 0.7LiNi(1/3)Mn(1/3)Co(1/3)O(2) material showed excellent electrochemical performance, and the LR-1.0 sample had the best cycling stability and rate capability. When the LR-1.0 sample was tested as a cathode at 0.1 and 2.0 C, its initial discharge capacities can reach up to 267.0 and 146.6 mAh g(-1), respectively. The discharge capacity retention of 93.3 % at 0.1 C can be achieved after 50 cycles. The electrochemical impedance spectroscopy measurement revealed that the charge transfer resistance was only 205.3 Omega. These results indicated that the 0.3Li(2)MnO(3)center dot 0.7LiNi(1/3)Mn(1/3)Co(1/3)O(2) prepared by this method was a new promising cathode material for lithium ion batteries.

引用

页码：907 / 915

页数：9

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