Projects per year
Abstract
Hard carbon is the most suitable anode material for pragmatic Sodium-ion batteries (NIBs). Despite various studies, there is still significant scope for improvement in the understanding of the (de)sodiation mechanism. Here, we study Sn incorporation in hard carbons and its effects on the electrochemical performance. Sn incorporation leads to improved first cycle coulombic efficiency and capacity, specifically increase in the plateau capacity. An improvement from 220 mAh/g to 285 mAh/g and 325 mAh/g is respectively obtained for 7% and 15% Sn in hard carbon-Sn composites (HC/Sn). Sn incorporation in both commercial and sucrose-derived hard carbons has been shown to improve the electrochemical performance. X-ray diffraction (XRD) studies show that number of graphene layers in nano-graphitic domains is reduced after Sn incorporation with no change in interlayer spacing, thus highlighting the role of the nature of graphitic domains in designing the hard carbons. Full cells with commercial cathodes are also presented. Cost analysis of the Sn doping routes in this study is presented to demonstrate the commercial viability of the strategy.
Original language | English |
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Article number | e202300225 |
Journal | Batteries & Supercaps |
Volume | 6 |
Issue number | 11 |
Early online date | 18 Sept 2023 |
DOIs | |
Publication status | Published - 8 Nov 2023 |
Keywords
- Anodes
- Cost analysis
- Energy density
- Hard carbon
- Na-ion batteries
Fingerprint
Dive into the research topics of 'Investigations into improved electrochemical performance of Sn doped Hard carbons as negatives for sodium-ion batteries'. Together they form a unique fingerprint.Projects
- 3 Finished
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Light Element Analysis Facility (LEAF): Light Element Analysis Facility (LEAF)
Irvine, J. T. S. (PI), Baker, R. (CoI) & Miller, D. N. (CoI)
5/04/20 → 4/04/23
Project: Standard
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Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale
Irvine, J. T. S. (PI), Baker, R. (CoI) & Zhou, W. (CoI)
1/04/18 → 2/09/20
Project: Standard
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Equipment Account: Characterisation and Manipulation of Advanced Functional Materials and their Interfaces at the Nanoscale
Samuel, I. D. W. (PI)
1/10/13 → 30/09/23
Project: Standard
Datasets
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Investigations into improved electrochemical performance of Sn doped Hard carbons as negatives for Na-ion batteries (dataset)
Tripathi, A. (Creator), University of St Andrews, 28 Sept 2023
DOI: 10.17630/0563fb0d-1cd2-4fe8-b077-66421f5125ad
Dataset
File