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Oxygen-free cell formation process obtaining LiF protected electrodes for improved stability in lithium-oxygen batteries
Sun, Zhuang; Wang, Hao-Ran; Wang, Jing; Zhang, Tao
2019-12-30
Source PublicationENERGY STORAGE MATERIALS
ISSN2405-8297
Volume23Pages:670
SubtypeArticle
AbstractThe unsatisfactory stabilities of carbon-based cathodes and lithium anodes are the major hurdles limiting the development of Li-air (O-2) batteries. Herein, we propose an extremely simple cell formation process for nonaqueous Li-O-2 batteries, by a discharge-charge process in argon prior to O-2 atmosphere, to produce protective films on both CNTs-cathode and lithium-anode surfaces. The films are mainly composed of lithium fluoride derived from LiTFSI decomposition and endows lithium oxygen batteries with enhanced cycling stability (>200 cycles) under a consistent capacity condition (1000 mAh g(-1)). This study reveals that LiF-rich films could effectually suppress the parasitic reactions of electrodes against the reactive intermediates and electrolyte attacks. This simple approach provides a new strategy to protect both electrodes for lithium oxygen batteries.
KeywordLithium-oxygen battery Carbon cathode Lithium anode protection Lithium fluoride Cell formation process
DOI10.1016/j.ensm.2019.02.032
WOS KeywordLI-O-2 BATTERIES ; METAL ANODE ; STABLE CATHODE ; GRAPHITE ANODE ; LAYER ; PERFORMANCE ; SURFACE ; DESIGN ; MICROSPHERES ; INTERFACE
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
PublisherELSEVIER
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27467
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Sun, Zhuang,Wang, Hao-Ran,Wang, Jing,et al. Oxygen-free cell formation process obtaining LiF protected electrodes for improved stability in lithium-oxygen batteries[J]. ENERGY STORAGE MATERIALS,2019,23:670.
APA Sun, Zhuang,Wang, Hao-Ran,Wang, Jing,&Zhang, Tao.(2019).Oxygen-free cell formation process obtaining LiF protected electrodes for improved stability in lithium-oxygen batteries.ENERGY STORAGE MATERIALS,23,670.
MLA Sun, Zhuang,et al."Oxygen-free cell formation process obtaining LiF protected electrodes for improved stability in lithium-oxygen batteries".ENERGY STORAGE MATERIALS 23(2019):670.
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