Influence of Ambient Air on Cell Reactions of Li-air Batteries
文献类型：期刊论文
| 作者 | Huang, Shiting1,2; Cui, Zhonghui1; Zhao, Ning1,2; Sun, Jiyang1,2; Guo, Xiangxin1 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2016-02-10 |
| 卷号 | 191页码:473-478 |
| 关键词 | Li-air batteries Ambient air Non-aqueous electrolytes Cathode reactions Li anodes |
| 英文摘要 | The non-aqueous Li-air battery offers the highest theoretical energy density among currently available rechargeable storage units. However, H2O and CO2 in air are viewed as detrimental factors which hinder its performance. Thus, most previous researches focus on the Li-oxygen battery with pure O-2 as working atmosphere. The actual influence of ambient air on the cell chemistry has seldom been investigated. Here, we carry out study of the Li-air batteries with tetraethylene glycol dimethyl ether (TEGDME)-based electrolytes and carbon-nanotube-based cathodes operated in ambient air. The cells show the specific capacity as large as 7000 mAh g (1) upon the first discharge to 2 V and more than 50 cycles when being operated with the capacity cutoff of 500 mAh g (1). It is found that the TEGDME-based electrolytes slightly decompose during cell operation. Li2O2 forms during initial discharge and turns Li2CO3 and LiOH owing to its reaction with CO2 and H2O. The lithium anodes become expanded and pulverized after cycles, the problem of which can be relieved by protection with coated polymer layers. These results give essential information that would be helpful for development of the practical Li-air batteries operated in ambient atmosphere. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Electrochemistry |
| 研究领域[WOS] | Electrochemistry |
| 关键词[WOS] | LITHIUM-OXYGEN BATTERIES ; LI-O-2 BATTERIES ; BIFUNCTIONAL ELECTROCATALYST ; NONAQUEOUS ELECTROLYTES ; OPERATION ; CATHODE ; CATALYST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000371143200055 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23141]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Shiting,Cui, Zhonghui,Zhao, Ning,et al. Influence of Ambient Air on Cell Reactions of Li-air Batteries[J]. ELECTROCHIMICA ACTA,2016,191:473-478. |
| APA | Huang, Shiting,Cui, Zhonghui,Zhao, Ning,Sun, Jiyang,&Guo, Xiangxin.(2016).Influence of Ambient Air on Cell Reactions of Li-air Batteries.ELECTROCHIMICA ACTA,191,473-478. |
| MLA | Huang, Shiting,et al."Influence of Ambient Air on Cell Reactions of Li-air Batteries".ELECTROCHIMICA ACTA 191(2016):473-478. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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