Direct exfoliation of the anode graphite of used Li-ion batteries into few-layer graphene sheets: a green and high yield route to high-quality graphene preparation
Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 5, Issue: 12, Page: 5880-5885
2017
- 82Citations
- 75Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Recycling anode graphite remains a significant barrier to the recovery of used Li-ion batteries. In this study, we show that anode graphite in used lithium-ion batteries is a cheap and ideal candidate for the high yield production of high-quality graphene. Attributed to the reduced interlayer force after repeated charge-discharge cycles, the sonication assisted exfoliation efficiency of the used anode graphite can be 3 to 11 times that of natural graphite, with a highest mass yield of the dispersed graphene sheets of ∼40 wt%. Importantly, the layer numbers of most of the exfoliated graphene sheets are 1-4 , and their lateral sizes are over 1 μm. Their conductivity after annealing at moderate temperature (500 °C) is up to 9100 S m, and their potential application in conductive ink was also demonstrated.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85016081754&origin=inward; http://dx.doi.org/10.1039/c7ta00459a; https://xlink.rsc.org/?DOI=C7TA00459A; http://xlink.rsc.org/?DOI=C7TA00459A; http://pubs.rsc.org/en/content/articlepdf/2017/TA/C7TA00459A; https://dx.doi.org/10.1039/c7ta00459a; https://pubs.rsc.org/en/content/articlelanding/2017/ta/c7ta00459a
Royal Society of Chemistry (RSC)
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