Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/95780
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Physics | en_US |
dc.creator | Tan, H | en_US |
dc.creator | Zhou, R | en_US |
dc.creator | Zhang, B | en_US |
dc.date.accessioned | 2022-10-11T01:09:28Z | - |
dc.date.available | 2022-10-11T01:09:28Z | - |
dc.identifier.issn | 0378-7753 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/95780 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2021 Elsevier B.V. All rights reserved. | en_US |
dc.rights | The following publication Tan, H., Zhou, R., & Zhang, B. (2021). Understanding potassium ion storage mechanism in pitch-derived soft carbon and the consequence on cyclic stability. Journal of Power Sources, 506, 230179 is available at https://dx.doi.org/10.1016/j.jpowsour.2021.230179. | en_US |
dc.rights | © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.subject | Anode | en_US |
dc.subject | In-situ Raman | en_US |
dc.subject | Pitch | en_US |
dc.subject | Potassium ion batteries | en_US |
dc.subject | Soft carbon | en_US |
dc.title | Understanding potassium ion storage mechanism in pitch-derived soft carbon and the consequence on cyclic stability | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 506 | en_US |
dc.identifier.doi | 10.1016/j.jpowsour.2021.230179 | en_US |
dcterms.abstract | Carbon materials are considered the most promising anodes for emerging potassium ion batteries. While hard carbon has shown attractive capacities, soft carbon possesses advantages in the tap density for obtaining high volumetric energy density. Systematic studies are conducted in this work to explore the potential active sites for K ion storage and the associated stability upon repeated K ion insertion/extraction. Pitch-derived soft carbon is utilized as a model material due to its high carbon purity so that the interference of heteroatoms could be minimized. Stepwise carbonization is performed to gradually tune the degree of order, allowing the establishment of the correlation between the charge storage mechanism and microstructure by in-situ Raman spectroscopy. Ex-situ transmission electron microscope (TEM) images of the electrodes after cycles are collected to examine the likely structural deterioration upon the insertion of relative large K ions. The kinetics of charge transfer in various active sites are exploited to achieve a holistic performance in both the energy and power densities. This work unravels the structure-dependent potassium storage behaviors in soft carbon and would benefit the optimization of microstructure for designing advanced anodes. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of power sources, 15 Sept 2021, v. 506, 230179 | en_US |
dcterms.isPartOf | Journal of power sources | en_US |
dcterms.issued | 2021-09-15 | - |
dc.identifier.scopus | 2-s2.0-85109042992 | - |
dc.identifier.eissn | 1873-2755 | en_US |
dc.identifier.artn | 230179 | en_US |
dc.description.validate | 202210 bcch | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | a1757 | - |
dc.identifier.SubFormID | 45896 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Tan_Understanding_Potassium_Ion.pdf | Pre-Published version | 2.07 MB | Adobe PDF | View/Open |
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