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Article: Investigation on the Cyclability of Lithium-Oxygen Cells in a Confined Potential Window using Cathodes with Pre-filled Discharge Products

TitleInvestigation on the Cyclability of Lithium-Oxygen Cells in a Confined Potential Window using Cathodes with Pre-filled Discharge Products
Authors
KeywordsElectrolyte decomposition
Safe potential window
Oxygen evolution reaction
Lithium-oxygen battery
Cyclability
Issue Date2015
Citation
Chemistry - An Asian Journal, 2015, v. 10 n. 10, p. 2182-2189 How to Cite?
AbstractWith new chemistry and advantageous configuration, the lithium-oxygen (Li-O2) battery promises a much higher specific energy than traditional lithium-ion batteries. The limited understanding on the complicated battery reactions therein, however, has become a major bottleneck of its development for applications requiring a high energy efficiency and long cycle-life. Herein, in a confined potential window with negligible electrolyte degradation, we studied the rechargeability of Li-O2 cathodes with pre-filled well-defined discharge products of Li2O2, Li2CO3, LiOH, or their combinations. Our results suggest Li2CO3 as the most difficult species to be electrochemically decomposed among the three lithium compounds, whereas the presence of LiOH notably increases the initial charge potential. The clearly visible difference in the charge behavior and cycling stability of these artificially "discharged" electrodes provides a guideline for the development of future high-performance Li-O2 batteries.
Persistent Identifierhttp://hdl.handle.net/10722/219793
ISSN
2015 Impact Factor: 4.592
2015 SCImago Journal Rankings: 1.833

 

DC FieldValueLanguage
dc.contributor.authorGeng, Dongsheng-
dc.contributor.authorDing, Ning-
dc.contributor.authorHor, T. S Andy-
dc.contributor.authorChien, Sheau Wei-
dc.contributor.authorLiu, Zhaolin-
dc.contributor.authorZong, Yun-
dc.date.accessioned2015-09-23T02:57:58Z-
dc.date.available2015-09-23T02:57:58Z-
dc.date.issued2015-
dc.identifier.citationChemistry - An Asian Journal, 2015, v. 10 n. 10, p. 2182-2189-
dc.identifier.issn1861-4728-
dc.identifier.urihttp://hdl.handle.net/10722/219793-
dc.description.abstractWith new chemistry and advantageous configuration, the lithium-oxygen (Li-O2) battery promises a much higher specific energy than traditional lithium-ion batteries. The limited understanding on the complicated battery reactions therein, however, has become a major bottleneck of its development for applications requiring a high energy efficiency and long cycle-life. Herein, in a confined potential window with negligible electrolyte degradation, we studied the rechargeability of Li-O2 cathodes with pre-filled well-defined discharge products of Li2O2, Li2CO3, LiOH, or their combinations. Our results suggest Li2CO3 as the most difficult species to be electrochemically decomposed among the three lithium compounds, whereas the presence of LiOH notably increases the initial charge potential. The clearly visible difference in the charge behavior and cycling stability of these artificially "discharged" electrodes provides a guideline for the development of future high-performance Li-O2 batteries.-
dc.languageeng-
dc.relation.ispartofChemistry - An Asian Journal-
dc.subjectElectrolyte decomposition-
dc.subjectSafe potential window-
dc.subjectOxygen evolution reaction-
dc.subjectLithium-oxygen battery-
dc.subjectCyclability-
dc.titleInvestigation on the Cyclability of Lithium-Oxygen Cells in a Confined Potential Window using Cathodes with Pre-filled Discharge Products-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1002/asia.201500355-
dc.identifier.scopuseid_2-s2.0-84942370895-
dc.identifier.eissn1861-471X-

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