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High-performance graphene/disodium terephthalate electrodes with ether electrolyte for exceptional cooperative sodiation/desodiation
- Source :
- Nano Energy. 77:105203
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Organic electrode materials are usually highly soluble, less conductive and highly irreversible. These drawbacks result in the low utilization and poor performance of organic materials in sodium-ion batteries. In this work, a self-assembled graphene/disodium terephthalate (Na2TP) electrode with exceptionally high loadings of Na2TP (up to 88.60%) shows dramatically enhanced electrical conductivity and sodium storage performances in ether electrolytes. The strong confinement of Na2TP by graphene and the interfacial modification by ether combinationally improve the kinetics of sodiation/desodiation. This cooperative electrode/electrolyte configuration achieves a high reversible capacity of 245 mAh g−1 with an extraordinary initial Coulombic efficiency of 82.3%, which outperforms the state-of-the-art of organic anodes.
- Subjects :
- Materials science
Renewable Energy, Sustainability and the Environment
Graphene
Ether
02 engineering and technology
Electrolyte
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
law.invention
Anode
chemistry.chemical_compound
chemistry
Chemical engineering
law
Electrical resistivity and conductivity
Electrode
General Materials Science
Electrical and Electronic Engineering
0210 nano-technology
Electrical conductor
Faraday efficiency
Subjects
Details
- ISSN :
- 22112855
- Volume :
- 77
- Database :
- OpenAIRE
- Journal :
- Nano Energy
- Accession number :
- edsair.doi...........ad0603f4efb5cb2471f066a17a293448