Electrochemical properties of LiNi_{1鈭?span style='font-style: italic'>y}Co_yO₂ (y = 0.1, 0.3 and 0.5) synthesized from LiOH路H₂O, NiO and Co₃O₄ by solid state reaction method

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• 作者：Myoung Youp Song^a ; ^{songmy@jbnu.ac.kr} ; Eui Yong Bang^b ; Daniel R. Mumm^c ; Hye Ryoung Park^d
• 关键词：LiNi1&minus ; yCoyO2 ; Solid state reaction method ; Degree of displacement of the nickel and lithium ions ; Discharge capacity ; Capacity fading rate
• 刊名：Ceramics International
• 出版年：2012
• 期刊代码：13_02728842
• 类别：ms
• 出版时间：August, 2012
• 卷：38
• 期：6
• 页码：4953-4959
• 文件大小：971 K

摘要

LiNi_1鈭?em>yCo_yO₂ (y = 0.1, 0.3 and 0.5) were synthesized by solid state reaction method at 750 掳C and 850 掳C from LiOH路H₂O, NiO and Co₃O₄ as starting materials. The electrochemical properties of the synthesized LiNi_1鈭?em>yCo_yO₂ were investigated. The synthesized LiNi_1鈭?em>yCo_yO₂ had a 伪-NaFeO₂ structure with a space group of . Among all of the prepared LiNi_1鈭?em>yCo_yO₂ (y = 0.1, 0.3 and 0.5) samples, LiNi_0.7Co_0.3O₂ calcined at 850 掳C for 40 h had the largest first discharge capacity of 146.2 mAh/g and a relatively low discharge capacity fading rate.