Manganese oxide with a card-house-like structure reassembled from nanosheets for rechargeable Li-air battery

被引：67

作者：

Ida, Shintaro ^{[1
]}

Thapa, Arjun Kumar ^{[1
]}

Hidaka, Yuiko ^{[1
]}

Okamoto, Yohei ^{[1
]}

Matsuka, Maki ^{[1
]}

Hagiwara, Hidehisa ^{[1
]}

Ishihara, Tatsumi ^{[1
]}

机构：

[1] Kyushu Univ, Fac Engn, Dept Appl Chem, Nishi Ku, Fukuoka 8190395, Japan

来源：

JOURNAL OF POWER SOURCES | 2012年 / 203卷

关键词：

Nanosheets; Manganese oxide; Catalyst; Li-air battery; LITHIUM BATTERIES; THIN-FILMS; ELECTRODE; CRYSTALLITES; HYDROXIDE; CATALYST;

D O I：

10.1016/j.jpowsour.2011.11.042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Li-air batteries have attracted attention as a next generation secondary battery because of their potentials such as a high theoretical specific energy density. One of the main issues for the Li-air batteries is the development of a cathode oxygen electrode with high capacity and charge-discharge cycle stability. Here we report a manganese oxide with a card-house-like structure for the cathode oxygen electrode. The manganese oxide was synthesized by reassembling two-dimensional manganese oxide nanosheets. The cathode electrode containing the manganese oxide exhibited high catalytic activity for Li+/Li2Ox (x = 1, 2) redox reactions, and its discharge capacity was 1300-1500 mAh g(-1) catalyst, which was higher than that of Li-air batteries using electrolytic MnO2 as catalysts. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：159 / 164

页数：6

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