Topological defect dynamics in operando battery nanoparticles
Topological defects can markedly alter nanomaterial properties. This presents opportunities for "defect engineering," where desired functionalities are generated through defect manipulation. However, imaging defects in working devices with nanoscale resolution remains elusive. We report th...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2015-06, Vol.348 (6241), p.1344-1347 |
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| container_title | Science (American Association for the Advancement of Science) |
| container_volume | 348 |
| creator | Ulvestad, A. Singer, A. Clark, J. N. Cho, H. M. Kim, J. W. Harder, R. Maser, J. Meng, Y. S. Shpyrko, O. G. |
| description | Topological defects can markedly alter nanomaterial properties. This presents opportunities for "defect engineering," where desired functionalities are generated through defect manipulation. However, imaging defects in working devices with nanoscale resolution remains elusive. We report three-dimensional imaging of dislocation dynamics in individual battery cathode nanoparticles under operando conditions using Bragg coherent diffractive imaging. Dislocations are static at room temperature and mobile during charge transport. During the structural phase transformation, the lithium-rich phase nucleates near the dislocation and spreads inhomogeneously. The dislocation field is a local probe of elastic properties, and we find that a region of the material exhibits a negative Poisson's ratio at high voltage. Operando dislocation imaging thus opens a powerful avenue for facilitating improvement and rational design of nanostructured materials. |
| doi_str_mv | 10.1126/science.aaa1313 |
| format | Article |
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N. ; Cho, H. M. ; Kim, J. W. ; Harder, R. ; Maser, J. ; Meng, Y. S. ; Shpyrko, O. G.</creator><creatorcontrib>Ulvestad, A. ; Singer, A. ; Clark, J. N. ; Cho, H. M. ; Kim, J. W. ; Harder, R. ; Maser, J. ; Meng, Y. S. ; Shpyrko, O. G. ; Energy Frontier Research Centers (EFRC) ; Northeastern Center for Chemical Energy Storage (NECCES)</creatorcontrib><description>Topological defects can markedly alter nanomaterial properties. This presents opportunities for "defect engineering," where desired functionalities are generated through defect manipulation. However, imaging defects in working devices with nanoscale resolution remains elusive. We report three-dimensional imaging of dislocation dynamics in individual battery cathode nanoparticles under operando conditions using Bragg coherent diffractive imaging. Dislocations are static at room temperature and mobile during charge transport. During the structural phase transformation, the lithium-rich phase nucleates near the dislocation and spreads inhomogeneously. The dislocation field is a local probe of elastic properties, and we find that a region of the material exhibits a negative Poisson's ratio at high voltage. Operando dislocation imaging thus opens a powerful avenue for facilitating improvement and rational design of nanostructured materials.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.aaa1313</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington: American Association for the Advancement of Science</publisher><subject>Batteries ; Defects ; Dislocations ; Dynamics ; Electric batteries ; energy storage (including batteries and capacitors), defects, charge transport, materials and chemistry by design, synthesis (novel materials) ; Imaging ; Nanoparticles ; Nanostructure ; Phase transformations ; Topology</subject><ispartof>Science (American Association for the Advancement of Science), 2015-06, Vol.348 (6241), p.1344-1347</ispartof><rights>Copyright © 2015 American Association for the Advancement of Science</rights><rights>Copyright © 2015, American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c495t-d23f1eb4da15773f47db7e80970553379a509685fea83048ade9071ea121b7ce3</citedby><cites>FETCH-LOGICAL-c495t-d23f1eb4da15773f47db7e80970553379a509685fea83048ade9071ea121b7ce3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24747847$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24747847$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,881,2871,2872,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1210854$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Ulvestad, A.</creatorcontrib><creatorcontrib>Singer, A.</creatorcontrib><creatorcontrib>Clark, J. 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Operando dislocation imaging thus opens a powerful avenue for facilitating improvement and rational design of nanostructured materials.</description><subject>Batteries</subject><subject>Defects</subject><subject>Dislocations</subject><subject>Dynamics</subject><subject>Electric batteries</subject><subject>energy storage (including batteries and capacitors), defects, charge transport, materials and chemistry by design, synthesis (novel materials)</subject><subject>Imaging</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Phase transformations</subject><subject>Topology</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpdkDFv2zAQhYmgBeK6nTMFEJqli-yjSIrk0KEw2qSAgS7uTJypUyJDJlWSHvzvo8BGhk43vO893HuM3XFYcd606-wHCp5WiMgFFzdswcGq2jYgPrAFgGhrA1rdsk85HwBmzYoF-76LUxzj8-BxrDrqyZeqOwc8Dj5XQ6jiRAlDF6s9lkLpXAUMccJUBj9S_sw-9jhm-nK9S_b318_d5qne_nn8vfmxrb20qtRdI3pOe9khV1qLXupur8mA1aCUENqiAtsa1RMaAdJgRxY0J-QN32tPYsm-XnJjLoObmxbyLz6GML_rZgiMkjP07QJNKf47US7uOGRP44iB4ik7bkE2ElqrZvThP_QQTynMFRxvjTVSSf4WuL5QPsWcE_VuSsMR09lxcG-bu-vm7rr57Li_OA65xPSON1JLbaQWr2T8fzA</recordid><startdate>20150619</startdate><enddate>20150619</enddate><creator>Ulvestad, A.</creator><creator>Singer, A.</creator><creator>Clark, J. 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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Batteries Defects Dislocations Dynamics Electric batteries energy storage (including batteries and capacitors), defects, charge transport, materials and chemistry by design, synthesis (novel materials) Imaging Nanoparticles Nanostructure Phase transformations Topology |
| title | Topological defect dynamics in operando battery nanoparticles |
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