Method of Preparation for Particle Growth Enhancement of LiNi0.8Co0.15Al0.05O2

被引：45

作者：

Yoon, Songhun ^{[1
]}

Lee, Chul Wee ^{[1
]}

Bae, Young San ^{[1
]}

Hwang, Ilkyu ^{[1
]}

Park, Yong-Ki ^{[1
]}

Song, Jun Ho ^{[2
]}

机构：

[1] Korea Res Inst Chem Technol, Green Chem Div, Taejon 305600, South Korea

[2] Korea Elect Technol Inst, Adv Batteries Res Ctr, Gyeonggi 463816, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 11期

关键词：

cobalt compounds; electrochemical electrodes; lithium compounds; materials preparation; nickel compounds; secondary cells; CATHODE MATERIALS; ELECTROCHEMICAL PROPERTIES; AL; R(3)OVER-BAR-M; CAPACITY;

D O I：

10.1149/1.3211133

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Herein, a preparation method of a Ni-rich cathode material in a lithium-ion battery is presented. Using the separate addition of Al hydroxide sol to a Ni/Co sulfate solution, monodispersed large particles of Ni0.8Co0.15Al0.05 hydroxide were prepared in a shorter retention time within a continuously stirred tank reactor. The electrochemical test of a cathode fabricated with as-prepared material exhibited a good discharge capacity (190 mA g(-1)), high initial efficiency (90.3%), high rate capability, and stable cyclability even though it was composed of larger particles. The improved performances in this work were probably attributable to the uniform dispersion of Al atoms within LiNi0.8Co0.15Al0.05O2 particles and the well-developed layered structure.

引用

页码：A211 / A214

页数：4

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