A stable Li-deficient oxide as high-performance cathode for advanced lithium-ion batteries

被引：16

作者：

Hou, Peiyu ^{[1
]}

Wang, Jie ^{[2
]}

Song, Jishun ^{[1
]}

Song, Dawei ^{[1
]}

Shi, Xixi ^{[1
]}

Wang, Xiaoqing ^{[2
]}

Zhang, Lianqi ^{[1
]}

机构：

[1] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

[2] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 15期

关键词：

SPINEL; ELECTRODES; LINI0.5MN1.5O4-DELTA; BEHAVIOR; ORIGIN; LICOO2; PLANES;

D O I：

10.1039/c4cc09344e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Monodisperse Li-deficient Li0.35Ni0.2Co0.1Mn0.7O2-x spinel single crystals have been prepared for the first time. The Li-deficient oxide surprisingly delivers large reversible capacity (251.3 mA h g(-1)), outstanding cycle life and low median-voltage of 2.7 V in the range of 2.0-4.9 V. Importantly, high median-voltage (4.4 V) and superior rate capability are also obtained from 3.0 to 5.0 V. These results indicate that high-energy or high-power density can be achieved by controlling discharge cut-off voltage.

引用

页码：3231 / 3234

页数：4

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