dc.contributor.author | Tsai, Ping-Chun | |
dc.contributor.author | Wen, Bohua | |
dc.contributor.author | Wolfman, Mark | |
dc.contributor.author | Choe, Min-Ju | |
dc.contributor.author | Pan, Menghsuan Sam | |
dc.contributor.author | Su, Liang | |
dc.contributor.author | Thornton, Katsuyo | |
dc.contributor.author | Cabana, Jordi | |
dc.contributor.author | Chiang, Yet-Ming | |
dc.date.accessioned | 2018-07-11T15:47:56Z | |
dc.date.available | 2018-07-11T15:47:56Z | |
dc.date.issued | 2018-03 | |
dc.date.submitted | 2018-01 | |
dc.identifier.issn | 1754-5692 | |
dc.identifier.issn | 1754-5706 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/116897 | |
dc.description.abstract | The electrochemical kinetics of battery electrodes at the single-particle scale are measured as a function of state-of-charge, and interpreted with the aid of concurrent transmission X-ray microscopy (TXM) of the evolving particle microstructure. An electrochemical cell operating with near-picoampere current resolution is used to characterize single secondary particles of two widely-used cathode compounds, NMC333 and NCA. Interfacial charge transfer kinetics are found to vary by two orders of magnitude with state-of-charge (SOC) in both materials, but the origin of the SOC dependence differs greatly. NCA behavior is dominated by electrochemically-induced microfracture, although thin binder coatings significantly ameliorate mechanical degradation, while NMC333 demonstrates strongly increasing interfacial reaction rates with SOC for chemical reasons. Micro-PITT is used to separate interfacial and bulk transport rates, and show that for commercially relevant particle sizes, interfacial transport is rate-limiting at low SOC, while mixed-control dominates at higher SOC. These results provide mechanistic insight into the mesoscale kinetics of ion intercalation compounds, which can guide the development of high performance rechargeable batteries. | en_US |
dc.publisher | Royal Society of Chemistry (RSC) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1039/c8ee00001h | en_US |
dc.rights | Creative Commons Attribution-NonCommercial 3.0 Unported | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/3.0/ | en_US |
dc.source | Royal Society of Chemistry | en_US |
dc.title | Single-particle measurements of electrochemical kinetics in NMC and NCA cathodes for Li-ion batteries | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Tsai, Ping-Chun et al. “Single-Particle Measurements of Electrochemical Kinetics in NMC and NCA Cathodes for Li-Ion Batteries.” Energy & Environmental Science 11, 4 (2018): 860–871 © 2018 Royal Society of Chemistry | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | en_US |
dc.contributor.mitauthor | Tsai, Ping-Chun | |
dc.contributor.mitauthor | Wen, Bohua | |
dc.contributor.mitauthor | Pan, Menghsuan Sam | |
dc.contributor.mitauthor | Su, Liang | |
dc.contributor.mitauthor | Chiang, Yet-Ming | |
dc.relation.journal | Energy & Environmental Science | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2018-07-11T15:10:26Z | |
dspace.orderedauthors | Tsai, Ping-Chun; Wen, Bohua; Wolfman, Mark; Choe, Min-Ju; Pan, Menghsuan Sam; Su, Liang; Thornton, Katsuyo; Cabana, Jordi; Chiang, Yet-Ming | en_US |
dspace.embargo.terms | N | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-8270-3396 | |
dc.identifier.orcid | https://orcid.org/0000-0002-5519-1946 | |
dc.identifier.orcid | https://orcid.org/0000-0002-2211-2164 | |
dc.identifier.orcid | https://orcid.org/0000-0002-0833-7674 | |
mit.license | PUBLISHER_CC | en_US |