Stable cycling of lithium metal electrode in nanocomposite solid polymer electrolytes with lithium bis (fluorosulfonyl)imide

Xabier Judez , Michał Piszcz , Estibaliz Coya , Chunmei Li , Itziar Aldalur , Uxue Oteo , Yan Zhang , Wei Zhang , Lide M. Rodriguez-Martinez , Heng Zhang , Michel Armand


Nanocomposite solid polymer electrolytes (NSPEs) comprising lithium salt based on two representative sulfonylimide anions (i.e., bis(fluorosulfonyl)imide ([N(SO2F)2]−, FSI−) and bis(trifluoromethanesulfonyl)imide ([N(SO2CF3)2]−, TFSI−)) have been prepared by simply dissolving the corresponding lithium salt in poly(ethylene oxide) matrix in the presence of inert nano-sized Al2O3 fillers. The physicochemical and electrochemical properties of the FSI- and TFSI-based NSPEs are investigated, in terms of phase transition, ion transport behavior, chemical and electrochemical compatibility with Li metal. With the addition of nano-sized Al2O3 fillers, a significant improvement in chemical and electrochemical compatibility with Li metal has been observed in both the FSI- and TFSI-based NSPEs. Particularly, the symmetric cell using the FSI-based NSPE can be continuously cycled for > 1000 h at 70 °C. The Li | LiFePO4 cell with the FSI-based NSPEs shows good cycling stability and capacity retention. These promising results make them attractive electrolytes for safe and stable rechargeable Li metal batteries.
Author Xabier Judez
Xabier Judez,,
, Michał Piszcz (FC / CofIC) - [CIC Energigune, Parque Tecnológico de Álava]
Michał Piszcz,,
- Chair Of Inorganic Chemistry
- CIC Energigune, Parque Tecnológico de Álava
, Estibaliz Coya
Estibaliz Coya,,
, Chunmei Li
Chunmei Li,,
, Itziar Aldalur
Itziar Aldalur,,
, Uxue Oteo
Uxue Oteo,,
, Yan Zhang
Yan Zhang,,
, Wei Zhang
Wei Zhang,,
, Lide M. Rodriguez-Martinez
Lide M. Rodriguez-Martinez,,
, Heng Zhang
Heng Zhang,,
et al.`
Journal seriesSolid State Ionics, ISSN 0167-2738, (A 30 pkt)
Issue year2018
Publication size in sheets0.5
Keywords in Englishsolid polymer electrolytes, nanocomposite material, lithium bis(fluorosulfonyl)imide, lithium bis(trifluoromethanesulfonyl)imide, lithium metal batteries
ASJC Classification3104 Condensed Matter Physics; 2500 General Materials Science; 1600 General Chemistry
Languageen angielski
1-s2.0-S0167273817301157-main.pdf 1.15 MB
Score (nominal)35
ScoreMinisterial score = 30.0, 10-08-2018, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 10-08-2018, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.952; WoS Impact Factor: 2017 = 2.751 (2) - 2017=2.607 (5)
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