High performance rechargeable aluminium ion batteries enabled by full utilization and understanding of polyaniline cathodes

Simple item page
dc.contributor.authorWei, Guokang
dc.contributor.authorQiao, Jia
dc.contributor.authorLi, Xin
dc.contributor.authorTao, Fei
dc.contributor.authorXue, Weixi
dc.contributor.authorHu, Sijiang
dc.contributor.authorLuo, Zhenhua
dc.contributor.authorYang, Jianhong
dc.date.accessioned2024-08-07T13:18:39Z
dc.date.available2024-08-07T13:18:39Z
dc.date.freetoread2024-08-07
dc.date.issued2024-07-08
dc.description.abstractAs a renowned conductive polymer, polyaniline (PANI) shows remarkable potential in organic cathode materials for rechargeable aluminium ion batteries (RAIBs). However, existing research has not given sufficient understanding and explanation of the structure and states of PANI but failed to achieve ideal electrochemical performance. In this study, we differentiate and investigate for the first time its primary-doped (PANI-1), re-doped (PANI-Re), secondary-doped (PANI-2), and emeraldine based (PANI-EB) forms, meanwhile attempt to enhance the conductivity of PANI-EB using multi-walled carbon nanotubes (PANI-EB@C). Among them, the high-doped PANI-2 and non-doped PANI-EB exhibit theoretical capacity utilization far superior to lower doped PANI-1 and PANI-Re, with both specific capacities reaching approximately 225 mAh/g (full capacity utilization rate of 76.53 %) at a current density of 1 A/g, while maintaining capacity retention rates of 92.89 % after 2000 cycles and 92.44 % after 5000 cycles, respectively. Furthermore, the high-conductivity PANI-EB@C displays a discharge specific capacity of 284 mAh/g (full capacity utilization rate of 96.59 %), with a capacity retention rate of 91.19 % after 5000 cycles. Electrochemical analysis, Gaussian theoretical calculations, ex-situ characterization collectively indicate that the electrochemical performance of doped PANI is positively correlated with the degree of doping-induced conductivity changes, while the unique internal redox process of PANI-EB enhances the release of performance and could be further optimized by the assistant of conductivity medium. This work advances the classification of the electrochemical performance and structural understanding of PANI cathode materials to an extremely high stage, towards the practical application of a low-cost, high-performance, sustainable, and green cathode material in large-scale energy storage devices.
dc.description.journalNameChemical Engineering Journal
dc.format.extentArticle number 153827
dc.identifier.citationWei G, Qiao J, Li X, et al., (2024) High performance rechargeable aluminium ion batteries enabled by full utilization and understanding of polyaniline cathodes. Chemical Engineering Journal, Volume 496, September 2024, Article number 153827
dc.identifier.issn1385-8947
dc.identifier.urihttps://doi.org/10.1016/j.cej.2024.153827
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22746
dc.language.isoen
dc.publisherElsevier
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S1385894724053166?via%3Dihub
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectRechargeable aluminium ion batteries
dc.subjectOrganic cathode
dc.subjectPolyaniline
dc.subjectDoping
dc.subjectEmeraldine base
dc.titleHigh performance rechargeable aluminium ion batteries enabled by full utilization and understanding of polyaniline cathodes
dc.typeArticle
dcterms.dateAccepted2024-07-05

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
High_performance_rechargeable_aluminium_ion_batteries-2024.pdf
Size:
1.51 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)