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Chemical origins of a fast-charge performance in disordered carbon anodes
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Ahn, Sunyhik, Lagnoni, Marco, Yuan, Yi, Ogarev, Anton, Vavrinyuk, Elena, Voynov, George, Barrett, Eleanor, Pelli, Alexander, Atrashchenko, Alexander, Platonov, Alexei, Gurevich, Sergey, Gorokhov, Maksim, Rupasov, Dmitry, Robertson, Alex W., House, Robert A., Johnson, Lee R., Bertei, Antonio and Chernyshov, Denis V. (2023) Chemical origins of a fast-charge performance in disordered carbon anodes. ACS Applied Energy Materials, 6 (16). pp. 8455-8465. doi:10.1021/acsaem.3c01280 ISSN 2574-0962.
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WRAP-chemical-origins-fast-charge-performance-disordered-carbon-anode-Robertson-2023.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only until 7 August 2024. Contact author directly, specifying your specific needs. - Requires a PDF viewer. Download (1272Kb) |
Official URL: https://doi.org/10.1021/acsaem.3c01280
Abstract
Fast charging of lithium-ion cells often causes capacity loss and limited cycle life, hindering their use in high-power applications. Our study employs electrochemical analysis and a multiphysics model to identify and quantify chemical and physical constraints during fast charging, comparing state-of-the-art graphite and nanocluster carbon (nC, a disordered carbon) anodes. The combination of modeling material phase separation phenomena with ion-electron transfer theory reveals significant insight. The active material strongly influences charge transfer kinetics and solid-state lithium diffusion. Unlike graphite, nC supports lithium insertion without phase separation, enabling faster lithium diffusion, better volume utilization, and lower charge transfer resistance. We demonstrate practical implications of these material phenomena through multilayer pouch cells made with nC anodes, which withstand over 5000 fast-charge cycles at 2C without significant degradation (<10% at reference 0.2C).
Item Type: | Journal Article | |||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
SWORD Depositor: | Library Publications Router | |||||||||
Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Lithium ion batteries -- Materials, Nanostructured materials, Carbon, Anodes | |||||||||
Journal or Publication Title: | ACS Applied Energy Materials | |||||||||
Publisher: | American Chemical Society | |||||||||
ISSN: | 2574-0962 | |||||||||
Official Date: | 28 August 2023 | |||||||||
Dates: |
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Volume: | 6 | |||||||||
Number: | 16 | |||||||||
Page Range: | pp. 8455-8465 | |||||||||
DOI: | 10.1021/acsaem.3c01280 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Reuse Statement (publisher, data, author rights): | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.3c01280 | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 5 September 2023 | |||||||||
RIOXX Funder/Project Grant: |
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