dc.contributor.author | Coleman, Jonathan | |
dc.date.accessioned | 2020-09-28T17:22:49Z | |
dc.date.available | 2020-09-28T17:22:49Z | |
dc.date.issued | 2020 | |
dc.date.submitted | 2020 | en |
dc.identifier.citation | Tian, R., Breshears, M., Horvath, D.V., Coleman, J.N., The Rate Performance of Two-Dimensional Material-Based Battery Electrodes May Not Be as Good as Commonly Believed, ACS Nano, 2020, 14, 3, 3129-3140 | en |
dc.identifier.other | Y | |
dc.description.abstract | Two-dimensional (2D) materials show great potential for use in battery electrodes and are believed to be particularly promising for high-rate applications. However, there does not seem to be much hard evidence for the superior rate performance of 2D materials compared to non-2D materials. To examine this point, we have analyzed published rate-performance data for a wide range of 2D materials as well as non-2D materials for comparison. For each capacity-rate curve, we extract parameters that quantify performance which can then be analyzed using a simple mechanistic model. Contrary to expectations, by comparing a previously proposed figure of merit, we find 2D-based electrodes to be on average ∼40 times poorer in terms of rate performance than non-2D materials. This is not due to differences in solid-state diffusion times which were similarly distributed for 2D and non-2D materials. In fact, we found the main difference between 2D and non-2D materials is that ion mobility within the electrolyte-filled pores of the electrodes is significantly lower for 2D materials, a situation which we attribute to their high aspect ratios. | en |
dc.format.extent | 3129-3140 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | ACS Nano; | |
dc.relation.ispartofseries | 14; | |
dc.relation.ispartofseries | 3; | |
dc.rights | Y | en |
dc.subject | Anode rate | en |
dc.subject | Cathode | en |
dc.subject | Current | en |
dc.subject | Diffusion coefficient | en |
dc.subject | Diffusivity | en |
dc.subject | Model | en |
dc.subject | Nanosheet | en |
dc.title | The Rate Performance of Two-Dimensional Material-Based Battery Electrodes May Not Be as Good as Commonly Believed | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/colemaj | |
dc.identifier.rssinternalid | 220275 | |
dc.identifier.doi | http://dx.doi.org/10.1021/acsnano.9b08304 | |
dc.relation.ecprojectid | info:eu-repo/grantAgreement/EC/FP7/785219 | |
dc.rights.ecaccessrights | openAccess | |
dc.identifier.orcid_id | 0000-0001-9659-9721 | |
dc.contributor.sponsor | European Union (EU) | en |
dc.contributor.sponsorGrantNumber | 785219 | en |
dc.identifier.uri | http://hdl.handle.net/2262/93606 | |