dc.contributor.author | Woodford, William H. | |
dc.contributor.author | Carter, W. Craig | |
dc.contributor.author | Chiang, Yet-Ming | |
dc.date.accessioned | 2016-03-24T13:37:11Z | |
dc.date.available | 2016-03-24T13:37:11Z | |
dc.date.issued | 2014-08 | |
dc.date.submitted | 2014-07 | |
dc.identifier.issn | 0013-4651 | |
dc.identifier.issn | 1945-7111 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/101765 | |
dc.description.abstract | We demonstrate that extensive electrochemical shock–electrochemical cycling induced fracture–occurs due to coherency stresses arising from first order cubic-to-cubic phase transformations in the spinels LiMn[subscript 2]O[subscript 4] and LiMn[subscript 1.5]Ni[subscript 0.5]O[subscript 4]. Electrochemical shock occurs despite the isotropy of the shape changes in these materials. This electrochemical shock mechanism is strongly sensitive to particle size; for LiMn[subscript 2]O[subscript 4] and LiMn[subscript 1.5]Ni[subscript 0.5]O[subscript 4], fracture can be averted with particle sizes smaller than ~1 μm. As a further critical test of the proposed mechanism, iron-doping was used to induce continuous solid solubility of lithium in LiMn[subscript 1.5]Ni[subscript 0.5]O[subscript 4], and shown to virtually avert electrochemical shock, while having minimal impact on the electrode potential and capacity. | en_US |
dc.description.sponsorship | United States. Dept. of Energy. Office of Basic Energy Sciences. Division of Materials Sciences and Engineering (Award DE-SC0002633) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.). Graduate Research Fellowship | en_US |
dc.language.iso | en_US | |
dc.publisher | Electrochemical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1149/2.0021411jes | en_US |
dc.rights | Creative Commons Attribution-NonCommercial-NoDerivs License | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.source | Electrochemical Society | en_US |
dc.title | Strategies to Avert Electrochemical Shock and Their Demonstration in Spinels | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Woodford, W. H., W. C. Carter, and Y.-M. Chiang. “Strategies to Avert Electrochemical Shock and Their Demonstration in Spinels.” Journal of the Electrochemical Society 161, no. 11 (August 7, 2014): F3005–F3009. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | en_US |
dc.contributor.mitauthor | Woodford, William H. | en_US |
dc.contributor.mitauthor | Carter, W. Craig | en_US |
dc.contributor.mitauthor | Chiang, Yet-Ming | en_US |
dc.relation.journal | Journal of the Electrochemical Society | 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 |
dspace.orderedauthors | Woodford, W. H.; Carter, W. C.; Chiang, Y.-M. | en_US |
dc.identifier.orcid | https://orcid.org/0000-0001-7564-7173 | |
dc.identifier.orcid | https://orcid.org/0000-0002-0833-7674 | |
mit.license | PUBLISHER_CC | en_US |
mit.metadata.status | Complete | |