Synthesis and electrochemical properties of high-density LiNi0.8Co0.2O2 for the lithium-ion-battery cathode

被引：9

作者：

Tang, Hong-Wei ^{[1
]}

Zhu, Zhi-Hong ^{[1
]}

Chang, Zhao-Rong ^{[1
]}

Chen, Zhong-Jun ^{[1
]}

Yuan, Xiao Zi ^{[2
]}

Wang, Haijiang ^{[2
]}

机构：

[1] Henan Normal Univ, Coll Chem & Environm Sci, Xinxiang 453007, Peoples R China

[2] Natl Res Council Canada, Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2008年 / 11卷 / 03期

关键词：

D O I：

10.1149/1.2828199

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

LiNi0.8Co0.2O2 powder with a tap density of 3.23 g cm(-3) has been successfully prepared by a molten-salt synthesis method using a eutectic molten salt of 0.62LiNO(3)-0.38LiOH with a melting point of 175.7 degrees C and Ni0.8Co0.2(OH)(2), where the ratio of Li/(Ni + Cc) is controlled at 1. 1: 1. X-ray diffraction analysis has shown that this material has a well-developed layered structure. Charge-discharge tests have shown that an LiNi0.8Co0.2O2 cathode prepared at 800 degrees C has an initial discharge capacity as high as 163 mAh g(-1) and excellent capacity retention in the range of 3.0-4.3 V at a current density of 0.2 mA cm(-2). (c) 2008 The Electrochemical Society.

引用

页码：A34 / A37

页数：4

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