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Liquid exfoliated SnP3 nanosheets for very high areal capacity Lithium-Ion Batteries

Increasing the energy density of lithium-ion batteries requires the discovery of new electrode materials capable of achieving very high areal capacity. Here, liquid phase exfoliation is used to produce nanosheets of SnP3, a 2D material with extremely high theoretical capacity of 1670 mAh g−1. These...

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Main Authors: Tian, Ruiyuan (Author) , Griffin, Aideen (Author) , McCrystall, Mark (Author) , Breshears, Madeleine (Author) , Harvey, Andrew (Author) , Gabbett, Cian (Author) , Horváth, Dominik V. (Author) , Backes, Claudia (Author) , Jing, Yu (Author) , Heine, Thomas (Author) , Park, Sang-Hoon (Author) , Coelho, João (Author) , Nicolosi, Valeria (Author) , Nentwig, Markus (Author) , Benndorf, Christopher (Author) , Oeckler, Oliver (Author) , Coleman, Jonathan N. (Author)
Format: Article (Journal)
Language:English
Published: 2021
In: Advanced energy materials
Year: 2021, Volume: 11, Issue: 4, Pages: 1-13
ISSN:1614-6840
DOI:10.1002/aenm.202002364
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/aenm.202002364
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.202002364
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Author Notes:Ruiyuan Tian, Aideen Griffin, Mark McCrystall, Madeleine Breshears, Andrew Harvey, Cian Gabbett, Dominik V. Horváth, Claudia Backes, Yu Jing, Thomas Heine, Sang-Hoon Park, João Coelho, Valeria Nicolosi, Markus Nentwig, Christopher Benndorf, Oliver Oeckler, and Jonathan N. Coleman
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Summary:Increasing the energy density of lithium-ion batteries requires the discovery of new electrode materials capable of achieving very high areal capacity. Here, liquid phase exfoliation is used to produce nanosheets of SnP3, a 2D material with extremely high theoretical capacity of 1670 mAh g−1. These nanosheets can be fabricated into solution-processed thin films for use as lithium storing anodes. To maximize their performance, carbon nanotubes are incorporated into the electrodes to simultaneously enhance conductivity and toughness. As a result, electrodes of thickness >300 µm can be produced, which display active-mass-normalized capacities (≈1657 mAh g−1Active) very close to the theoretical value. These materials show maximum specific (≈1250 mAh g−1Electrode) and areal (>20 mAh cm−2) capacities, which are at the state-of-the-art for 2D-based electrodes, coupled with good rate performance and stability. In combination with commercial cathode materials, full-cells are fabricated with areal capacities of ≈29 mAh cm−2 and near-record energy densities approaching 1000 Wh L−1.
Item Description:Im Titel ist die "3" bei "SnP" tiefgestellt
First published: 21 December 2020
Gesehen am 23.11.2023
Physical Description:Online Resource
ISSN:1614-6840
DOI:10.1002/aenm.202002364

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