Nano-structured gas diffusion electrode - A high power and stable cathode material for rechargeable Li-air batteries

被引：21

作者：

Cheng, H. ^{[1
]}

Scott, K. ^{[1
]}

机构：

[1] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

JOURNAL OF POWER SOURCES | 2013年 / 235卷

基金：

英国工程与自然科学研究理事会;

关键词：

Rechargeable Li-air batteries; Gas diffusion electrode; Air cathode; Nano-structured material; Energy storage; LITHIUM BATTERIES; NONAQUEOUS ELECTROLYTES; OXYGEN REDUCTION; CATALYSTS; CELLS; PERFORMANCE; METAL; INTERCALATION; LIMN2O4;

D O I：

10.1016/j.jpowsour.2013.02.028

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：

The rechargeable Li-air battery has a key role to play for future renewable energy and electric vehicle industries due to its high energy density. However, it suffers from cycling fading and low rate capability, mainly caused by the problem of cathode. Here we create a nanoporous three-dimensional gas diffusion electrode to replace a conventional composite electrode, prolonging battery cycle life over 200 cycles with higher rate capabilities and high capacities. Electrochemical and spectroscopic characterisations indicate the mechanism for the improvement. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：226 / 233

页数：8

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