Mesoporous Hybrid Electrolyte for Simultaneously Inhibiting Lithium Dendrites and Polysulfide Shuttle in Li–S Batteries. Issue 16 (16th February 2018)

• Record Type: Journal Article
• Authors: Zhang, Nan; Li, Bin; Li, Songmei; Yang, Shubin
• Is Part Of: Advanced energy materials. Volume 8:Issue 16(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-02-16
• Subjects: hybrid electrolyte -- lithium dendrites -- lithium–sulfur batteries -- mesoporous silica -- polysulfide‐shuttle; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201703124
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract: A bifunctional hybrid electrolyte composed of mesoporous silica nanosheets and liquid electrolyte is achieved for lithium–sulfur (Li–S) batteries. This hybrid electrolyte possesses abundant mesopores (2.8 nm), thin feature (20 µm), and high ionic conductivity (1.17 × 10 −1 mS cm −1 ) as well as a low interfacial resistance with electrodes. Such unique features not only enable the efficient inhibition of the growth of lithium dendrites, but also significantly prevents polysulfide shuttling. Consequently, a Li–S battery with this hybrid electrolyte exhibits a relatively high reversible capacity and good capacity retention. Abstract : A bifunctional hybrid electrolyte composed of mesoporous silica nanosheets and liquid electrolyte is achieved. This hybrid electrolyte possesses abundant mesopores (2.8 nm), high ionic conductivity and interfacial resistance with electrodes, which can efficiently inhibit the growth of lithium dendrites and polysulfides shuttle. The lithium–sulfur battery with this hybrid electrolyte exhibits a relatively high reversible capacity and good capacity retention.