High-performance sodium-ion batteries with a hard carbon anode: transition from the half-cell to full-cell perspective
Author(s)
Li, Ju
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Hard carbon is an appealing anode material for sodium-ion batteries (SIBs) due to renewable resources, low cost and high specific capacity. Practical full cells based on hard carbon with high energy density and long cyclability are expected to possess application interest for grid-scale energy storage. In this review, following this archetypal use scenario of SIBs, we aim at providing a quantitative full-cell metric for evaluating newly designed anodes or cathodes. Some significant problems in conventional half-cell and full-cell tests, including unfaithful prediction of capacity loss by coulombic efficiency in the full-cell and under-estimated capacity of hard carbon in the half-cell test, are discussed to better assess the actual capacity and cyclability of the hard carbon anode in sodium-matched full cells. Finally, we review rational design of hard carbon itself and the selection of electrolytes from such a full-cell perspective.
Date issued
2019-10Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Department of Materials Science and EngineeringJournal
Nanoscale
Publisher
Royal Society of Chemistry (RSC)
Citation
Chen, Xinlong et al. “High-performance sodium-ion batteries with a hard carbon anode: transition from the half-cell to full-cell perspective.” Nanoscale, vol. 11, issue 49, 2019, pp. 22196-22205 © 2019 The Author(s)
Version: Final published version
ISSN
2040-3372
2040-3364