Files in this item
Effect of Ti-substitution on the properties of P3 structure Na2/3Mn0.8Li0.2O2 showing a ribbon superlattice
Item metadata
dc.contributor.author | Linnell, Stephanie Frances | |
dc.contributor.author | Kim, Eun Jeong | |
dc.contributor.author | Ma, Le Anh | |
dc.contributor.author | Naden, Aaron Benjamin | |
dc.contributor.author | Irvine, John Thomas Sirr | |
dc.contributor.author | Younesi, Reza | |
dc.contributor.author | Duda, Laurent | |
dc.contributor.author | Armstrong, Robert | |
dc.date.accessioned | 2022-10-14T10:30:13Z | |
dc.date.available | 2022-10-14T10:30:13Z | |
dc.date.issued | 2022-10-14 | |
dc.identifier | 281379906 | |
dc.identifier | a4b24b5e-8b22-42c0-9146-4b2788919da4 | |
dc.identifier | 000867304700001 | |
dc.identifier | 85139972983 | |
dc.identifier.citation | Linnell , S F , Kim , E J , Ma , L A , Naden , A B , Irvine , J T S , Younesi , R , Duda , L & Armstrong , R 2022 , ' Effect of Ti-substitution on the properties of P3 structure Na 2 /3Mn 0.8 Li 0.2 O 2 showing a ribbon superlattice ' , ChemElectroChem , vol. 9 , no. 19 , e202200929 . https://doi.org/10.1002/celc.202200929 | en |
dc.identifier.issn | 2196-0216 | |
dc.identifier.other | ORCID: /0000-0002-8394-3359/work/120849377 | |
dc.identifier.other | ORCID: /0000-0003-2876-6991/work/120849818 | |
dc.identifier.other | ORCID: /0000-0003-1937-0936/work/120849937 | |
dc.identifier.uri | https://hdl.handle.net/10023/26194 | |
dc.description | Funding: Faraday Institution (Grant Number(s): FIRG018); Engineering and Physical Sciences Research Council (Grant Number(s): EP/T019298/1, EP/L017008/1, EP/R023751/1); Energimyndigheten (Grant Number(s): 2020-005249); Spring 8 (Grant Number(s): 2019B1604). | en |
dc.description.abstract | Oxygen anion redox offers an effective strategy to enhance the energy density of layered oxide positive electrodes for sodium- and lithium-ion batteries. However, lattice oxygen loss and irreversible structural transformations over the first cycle may result in large voltage hysteresis, thereby impeding practical application. Herein, ribbon superstructure ordering of Li/transition-metal-ions was applied to suppress the voltage hysteresis combined with Ti-substitution to improve the cycling stability for P3-Na0.67Li0.2Ti0.15Mn0.65O2. When both cation and anion redox reactions are utilized, Na0.67Li0.2Ti0.15Mn0.65O2 delivers a reversible capacity of 172 mA h g−1 after 25 cycles at 10 mA g−1 between 1.6–4.4 V vs. Na+/Na. Ex-situ X-ray diffraction data reveal that the ribbon superstructure is retained with negligible unit cell volume expansion/contraction upon sodiation/desodiation. The performance as a positive electrode for Li-ion batteries was also evaluated and P3-Na0.67Li0.2Ti0.15Mn0.65O2 delivers a reversible capacity of 180 mA h g−1 after 25 cycles at 10 mA g−1 when cycled vs. Li+/Li between 2.0–4.8 V. | |
dc.format.extent | 2035069 | |
dc.language.iso | eng | |
dc.relation.ispartof | ChemElectroChem | en |
dc.subject | Anion redox chemistry | en |
dc.subject | Layered compounds | en |
dc.subject | Positive electrode material | en |
dc.subject | Sodium | en |
dc.subject | Superstructure | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject | SDG 7 - Affordable and Clean Energy | en |
dc.subject.lcc | QD | en |
dc.title | Effect of Ti-substitution on the properties of P3 structure Na2/3Mn0.8Li0.2O2 showing a ribbon superlattice | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. Institute of Behavioural and Neural Sciences | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. Centre for Energy Ethics | en |
dc.contributor.institution | University of St Andrews. Centre for Designer Quantum Materials | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.identifier.doi | https://doi.org/10.1002/celc.202200929 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | EP/T019298/1 | en |
dc.identifier.grantnumber | ep/l017008/1 | en |
dc.identifier.grantnumber | EP/R023751/1 | en |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.