Long-life Li/polysulphide batteries with high sulphur loading enabled by lightweight three-dimensional nitrogen/sulphur-codoped graphene sponge
The University of Texas at Austin
Indexed incrossrefdoajpubmed
Abstract
Lithium-sulphur batteries with a high theoretical energy density are regarded as promising energy storage devices for electric vehicles and large-scale electricity storage. However, the low active material utilization, low sulphur loading and poor cycling stability restrict their practical applications. Herein, we present an effective strategy to obtain Li/polysulphide batteries with high-energy density and long-cyclic life using three-dimensional nitrogen/sulphur codoped graphene sponge electrodes. The nitrogen/sulphur codoped graphene sponge electrode provides enough space for a high sulphur loading, facilitates fast charge transfer and better immobilization of polysulphide ions. The hetero-doped…
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1,047
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Authors
4Topics & keywords
Topics
Keywords
- Sulfur
- Graphene
- Materials science
- Energy storage
- Nitrogen
- Electrode
- Chemical engineering
- Lithium (medication)
UN Sustainable Development Goals
- Affordable and clean energy
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