Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 23, Pages 6669-6675Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201702076
Keywords
cathode materials; electrochemistry; field-effect transistor; graphene; graphite exfoliation
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Funding
- ERC
- EC [CNECT-ICT-604391]
- Marie Sklodowska-Curie ETN projects SYNCHRONICS [GA 643238]
- Agence Nationale de la Recherche through the LabEx project Chemistry of Complex Systems [ANR-10-LABX-0026_CSC]
- International Center for Frontier Research in Chemistry (icFRC)
- China Scholarship Council (CSC)
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To bridge the gap between laboratory-scale studies and commercial applications, mass production of high quality graphene is essential. A scalable exfoliation strategy towards the production of graphene sheets is presented that has excellent yield (ca. 75%, 1-3 layers), low defect density (a C/O ratio of 21.2), great solution-processability, and outstanding electronic properties (a hole mobility of 430 cm(2) V-1 s(-1)). By applying alternating currents, dual exfoliation at both graphite electrodes enables a high production rate exceeding 20 g h(-1) in laboratory tests. As a cathode material for lithium storage, graphene-wrapped LiFePO4 particles deliver a high capacity of 167 mAh g(-1) at 1C rate after 500 cycles.
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