A Stable Quasi-Solid-State Sodium–Sulfur Battery

Publication Type:
Journal Article
Citation:
Angewandte Chemie - International Edition, 2018, 57 (32), pp. 10168 - 10172
Issue Date:
2018-08-06
Filename Description Size
4CF85D1C-9895-4A4B-AC90-7BCECCCC98A3 am.pdfAccepted Manuscript Version3.84 MB
Adobe PDF
Full metadata record
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Ambient-temperature sodium–sulfur (Na–S) batteries are considered a promising energy storage system due to their high theoretical energy density and low costs. However, great challenges remain in achieving a high rechargeable capacity and long cycle life. Herein we report a stable quasi-solid-state Na-S battery enabled by a poly(S-pentaerythritol tetraacrylate (PETEA))-based cathode and a (PETEA-tris[2-(acryloyloxy)ethyl] isocyanurate (THEICTA))-based gel polymer electrolyte. The polymeric sulfur electrode strongly anchors sulfur through chemical binding and inhibits the shuttle effect. Meanwhile, the in situ formed polymer electrolyte with high ionic conductivity and enhanced safety successfully stabilizes the Na anode/electrolyte interface, and simultaneously immobilizes soluble Na polysulfides. The as-developed quasi-solid-state Na-S cells exhibit a high reversible capacity of 877 mA h g−1 at 0.1 C and an extended cycling stability.
Please use this identifier to cite or link to this item: