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| 題名: | Recycling application of Li-MnO2 batteries as rechargeable lithium-air batteries |
| 作者: | 鄭芳怡;Hu, Yuxiang;Zhang, Tianran;Cheng, Fangyi;Zhao, Qing;Han, Xiaopeng;Chen, Jun |
| 貢獻者: | 地球科學學院大氣科學學系 |
| 關鍵詞: | electrocatalysis;Li-MnO2 batteries;Lithium;lithium-air batteries;Manganese;manganese oxide;Oxygen;recycling |
| 日期: | 2015-03-27 |
| 上傳時間: | 2026-04-21 14:04:39 (UTC+8) |
| 出版者: | John Wiley and Sons Ltd;Weinheim: WILEY-VCH Verlag |
| 摘要: | 摘要： The ever‐increasing consumption of a huge quantity of lithium batteries, for example, Li–MnO2 cells, raises critical concern about their recycling. We demonstrate herein that decayed Li–MnO2 cells can be further utilized as rechargeable lithium–air cells with admitted oxygen. We further investigated the effects of lithiated manganese dioxide on the electrocatalytic properties of oxygen‐reduction and oxygen‐evolution reactions (ORR/OER). The catalytic activity was found to be correlated with the composition of LixMnO2 electrodes (0<x<1) generated in situ in aprotic Li–MnO2 cells owing to tuning of the Mn valence and electronic structure. In particular, modestly lithiated Li0.50MnO2 exhibited superior performance with enhanced round‐trip efficiency (ca. 76 %), high cycling ability (190 cycles), and high discharge capacity (10 823 mA h gcarbon−1). The results indicate that the use of depleted Li–MnO2 batteries can be prolonged by their application as rechargeable lithium–air batteries. Never say die: Depleted Li–MnO2 batteries could be further utilized as rechargeable Li–O2 batteries with admitted oxygen. Thus, when the manganese oxide electrode was lithiated in situ and exposed to air (see picture), the resulting battery showed superior performance, including high capacity, a low overpotential, high rate capability, and high cycling stability.
其他題名： Angew. Chem. Int. Ed
出版者： Weinheim: WILEY-VCH Verlag
出版日期： 2015-03-27
出處： Angewandte Chemie International Edition, 2015-03, Vol.54 (14), p.4338-4343
資源來源： Wiley Online Library - AutoHoldings Journals
版權： 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
版權： 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
版權： 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
識別號： ISSN: 1433-7851
識別號： ISSN: 1521-3773
識別號： EISSN: 1521-3773
識別號： DOI: 10.1002/anie.201411626
識別號： PMID: 25678148
識別號： CODEN: ACIEAY |
| 顯示於類別: | [大氣科學學系] 期刊論文
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