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Designing a High-Power Sodium-Ion Battery by in Situ Metal Plating / Francesco Mazzali, Marcin Orzech, Arturas Adomkevicius, Ambra Pisanu, Lorenzo Malavasi, Davide Deganello, Serena Margadonna

ACS Applied Energy Materials, Volume: 2, Issue: 1, Pages: 344 - 353

Swansea University Authors: Francesco Mazzali, Marcin Orzech, Arturas Adomkevicius, Davide Deganello, Serena Margadonna

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DOI (Published version): 10.1021/acsaem.8b01361

Abstract

Sodium ion batteries represent a drop-in technology and a more sustainable alternative to Li-ion, but higher energies and power levels are required to meet the demands required by a greener electrification. Here, the design of an anode-free sodium-ion battery is presented and its performances discus...

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Published in: ACS Applied Energy Materials
ISSN: 2574-0962 2574-0962
Published: 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa48051
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Abstract: Sodium ion batteries represent a drop-in technology and a more sustainable alternative to Li-ion, but higher energies and power levels are required to meet the demands required by a greener electrification. Here, the design of an anode-free sodium-ion battery is presented and its performances discussed in terms of reduced mass and high power capabilities. The cell consists of an Iron Hexacyanoferrate - reduced Graphene Oxide composite as cathode material whose synthesis is tailored to achieve minimal structural defects (3%) and water content. Its high-potential redox couple FeLS(C) is stabilized at high rates, granting the full cell with high discharge voltage and power. As negative substrate, a carbon coated aluminum foil was adopted for in situ plating/stripping of Na metal, showing very small voltage hysteresis up to an applied current of 2 mA/cm2. Overall, this simplified full cell architecture can deliver up to 340 Wh/kg and 500 W/kg at nominal 1C retaining 80% in 250 cycles, with the possibility of delivering 9000 W/kg at 20C. Bridging the boundaries between batteries and supercapacitors, this research aims to expand the range of possible applications for Na-ion technology.
Keywords: Energy storage, Sodium-ion batteries, Prussian Blue based cathodes, In situ electroplating
Issue: 1
Start Page: 344
End Page: 353