TEM investigation of MnO2 cathode containing TiS2 and its influence in aqueous lithium secondary battery

被引：13

作者：

Manickam, Minakshi ^{[1
]}

Mitchell, David R. G.

Singh, Pritam

机构：

[1] Murdoch Univ, Div Sci & Engn, Murdoch, WA 6150, Australia

[2] Australian Nucl Sci & Technol Org, Mat & Engn Sci, Menai, NSW 2234, Australia

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 09期

关键词：

aqueous solutions; lithium insertion; LiOH; TEM; EELS techniques;

D O I：

10.1016/j.electacta.2006.10.006

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The discharge characteristics of manganese dioxide (MnO2) cathode in the presence of small amounts (1, 3 and 5 wt.%) of TiS2 additive has been investigated in an alkaline cell using aqueous lithium hydroxide as the electrolyte. The incorporation of small amounts of TiS2 additives into MnO2 was found to improve the battery discharge capacity from 150 to 270 mAh/g. However, increasing the additive from 3 to 5 wt.% causes a decrease in the discharge capacity. Hence, the objective is to gain insight into the role of TiS2 on the discharge characteristics of MnO2 and its mechanism. For this purpose, we have used transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) techniques. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3294 / 3298

页数：5

共 21 条

[1] Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries [J].