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http://hdl.handle.net/1942/35549
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DC Field | Value | Language |
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dc.contributor.author | ULU, Fulya | - |
dc.contributor.author | MYLAVARAPU, Satish Kumar | - |
dc.contributor.author | SAFARI, Momo | - |
dc.contributor.author | DE SLOOVERE, Dries | - |
dc.contributor.author | D'HAEN, Jan | - |
dc.contributor.author | JOOS, Bjorn | - |
dc.contributor.author | KALIYAPPAN, Periyasamy | - |
dc.contributor.author | KELCHTERMANS, An-Sofie | - |
dc.contributor.author | SAMYN, Pieter | - |
dc.contributor.author | VAN BAEL, Marlies | - |
dc.contributor.author | HARDY, An | - |
dc.date.accessioned | 2021-10-21T10:02:33Z | - |
dc.date.available | 2021-10-21T10:02:33Z | - |
dc.date.issued | 2022 | - |
dc.date.submitted | 2021-10-12T14:39:05Z | - |
dc.identifier.citation | Journal of Alloys and Compounds, 892 (Art N° 162175) | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | http://hdl.handle.net/1942/35549 | - |
dc.description.abstract | LiNi 0.5 Mn 1.5 O 4-δ (LNMO) is a potential candidate for high voltage Co-free cathodes in lithium-ion batteries. In this study, pre-calcination temperature, time, and oven type are showcased as important parameters influencing the particle size and morphology of the LNMO powder synthesized from the aqueous citric acid-acetates-NH 3 based method. These parameters determine the amount of organic residues in the precursor powder. A superior initial discharge capacity and capacity retention are obtained by an optimum combination of the particle size and morphology for the Li|LNMO coin cells. Pre-calcination in a forced convection oven at 200 °C for 40 h results in a voluminous and foam-like LNMO precursor powder morphology with the lowest amount of organic residue, leading to a ~ 1-4 µm powder with well-defined facets. Applying 24 h pre-calcination at 170 °C in a natural convection oven results in large LNMO aggregates of ~ 70 µm. Ball-milling of the crystalline LNMO powder is effective to reduce the agglomeration and particle size but deteriorates the electrochemical performance. An initial discharge capacity of 121 mA h g-1 at 0.2 C and a capacity retention of 90% after 400 cycles at 2 C are obtained from the samples prepared by 40 h pre-calcination at 200 °C in a forced-convection oven. | - |
dc.description.sponsorship | This work was supported by the Research Foundation Flanders (FWO Vlaanderen, grant number G053519N), the European Regional Development Fund ERDF, Flanders Innovation & Entrepreneurship and the Province of Limburg (project 936). The authors also thank Elsy Thijssen, Greet Cuyvers and Wouter Marchal for the ICP-AES measurements, Bart Ruttens for the XRD measurements, Hilde Pellaers for the SEM sample preparation, Saeed Yari for the powder pycnometer measurements and Ulrique Vounckx for the TEM measurements. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.rights | 2021 Elsevier B.V. All rights reserved. | - |
dc.subject.other | Energy storage materials | - |
dc.subject.other | Oxide materials | - |
dc.subject.other | Chemical synthesis | - |
dc.subject.other | Sol-gel processes | - |
dc.subject.other | Crystal structure | - |
dc.subject.other | Crystal growth | - |
dc.title | LiNi0.5Mn1.5O4-δ (LNMO) as Co-free cathode for lithium ion batteries via solution-gel synthesis: Particle size and morphology investigation | - |
dc.type | Journal Contribution | - |
dc.identifier.volume | 892 | - |
local.format.pages | 12 | - |
local.bibliographicCitation.jcat | A1 | - |
local.publisher.place | PO BOX 564, 1001 LAUSANNE, SWITZERLAND | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 162175 | - |
dc.identifier.doi | 10.1016/j.jallcom.2021.162175 | - |
dc.identifier.isi | 000711344300001 | - |
dc.identifier.eissn | 1873-4669 | - |
local.provider.type | - | |
local.uhasselt.uhpub | no | - |
local.uhasselt.international | no | - |
item.fulltext | With Fulltext | - |
item.accessRights | Restricted Access | - |
item.contributor | ULU, Fulya | - |
item.contributor | MYLAVARAPU, Satish Kumar | - |
item.contributor | SAFARI, Momo | - |
item.contributor | DE SLOOVERE, Dries | - |
item.contributor | D'HAEN, Jan | - |
item.contributor | JOOS, Bjorn | - |
item.contributor | KALIYAPPAN, Periyasamy | - |
item.contributor | KELCHTERMANS, An-Sofie | - |
item.contributor | SAMYN, Pieter | - |
item.contributor | VAN BAEL, Marlies | - |
item.contributor | HARDY, An | - |
item.validation | ecoom 2023 | - |
item.fullcitation | ULU, Fulya; MYLAVARAPU, Satish Kumar; SAFARI, Momo; DE SLOOVERE, Dries; D'HAEN, Jan; JOOS, Bjorn; KALIYAPPAN, Periyasamy; KELCHTERMANS, An-Sofie; SAMYN, Pieter; VAN BAEL, Marlies & HARDY, An (2022) LiNi0.5Mn1.5O4-δ (LNMO) as Co-free cathode for lithium ion batteries via solution-gel synthesis: Particle size and morphology investigation. In: Journal of Alloys and Compounds, 892 (Art N° 162175). | - |
crisitem.journal.issn | 0925-8388 | - |
crisitem.journal.eissn | 1873-4669 | - |
Appears in Collections: | Research publications |
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1-s2.0-S0925838821035854-main.pdf Restricted Access | Published version | 7.39 MB | Adobe PDF | View/Open Request a copy |
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