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Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries / Marcin W. Orzech, Francesco Mazzali, James McGettrick, Cameron Pleydell-Pearce, Trystan Watson, Wayne Voice, David Jarvis, Serena Margadonna

Journal of Materials Chemistry A, Volume: 5, Issue: 44, Pages: 23198 - 23208

Swansea University Authors: James McGettrick, Cameron Pleydell-Pearce, Trystan Watson, Serena Margadonna

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DOI (Published version): 10.1039/C7TA07648G

Abstract

Effective use of materials that undergo alloying reactions with sodium is hampered by the substantial volume changes that occur during cycling. One of the most common approaches to improve cycling stability is nanostructuring. However, the processes required for material’s particle downsizing are ha...

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Published in: Journal of Materials Chemistry A
ISSN: 2050-7488 2050-7496
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa36243
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One of the most common approaches to improve cycling stability is nanostructuring. However, the processes required for material&#x2019;s particle downsizing are hardly transferable to large scale production. To alleviate such problems, the ternary alloy Bi0.25Sb1.75Te3 has been designed and its electrochemical performance investigated. The choice of system was driven by the large reversible capacities displayed by both Sb and Te coupled with the highly desirable fracture resistance of Bi. Indeed, micron-sized bulk powder of Bi0.25Sb1.75Te3 showed high capacity retention (retaining 91% of the initial capacity after 100 cycles at 200 mA g-1) and an excellent average coulombic efficiency (99.9% for 100 cycles), both of which are superior to those observed for the bi-component counterpart Sb2Te3 as bulk and nanosized forms. This behaviour indicates that a small substitution of Sb with Bi does have profound effects on the electrochemical performance. Even more compelling is the observation that enhanced performance and stability are observed when the active material is in the form of micron-sized powder and not when nanosized in a carbon composite. This behaviour is ascribed to the influence of particle size on the (de)sodiation reaction pathways and on the thickness and composition of the SEI passivation layer. 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spelling 2021-01-07T15:11:00.1822271 v2 36243 2017-10-25 Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries bdbacc591e2de05180e0fd3cc13fa480 0000-0002-7719-2958 James McGettrick James McGettrick true false 564c480cb2abe761533a139c7dbaaca1 Cameron Pleydell-Pearce Cameron Pleydell-Pearce true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false e31904a10b1b1240b98ab52d9977dfbe 0000-0002-6996-6562 Serena Margadonna Serena Margadonna true false 2017-10-25 MTLS Effective use of materials that undergo alloying reactions with sodium is hampered by the substantial volume changes that occur during cycling. One of the most common approaches to improve cycling stability is nanostructuring. However, the processes required for material’s particle downsizing are hardly transferable to large scale production. To alleviate such problems, the ternary alloy Bi0.25Sb1.75Te3 has been designed and its electrochemical performance investigated. The choice of system was driven by the large reversible capacities displayed by both Sb and Te coupled with the highly desirable fracture resistance of Bi. Indeed, micron-sized bulk powder of Bi0.25Sb1.75Te3 showed high capacity retention (retaining 91% of the initial capacity after 100 cycles at 200 mA g-1) and an excellent average coulombic efficiency (99.9% for 100 cycles), both of which are superior to those observed for the bi-component counterpart Sb2Te3 as bulk and nanosized forms. This behaviour indicates that a small substitution of Sb with Bi does have profound effects on the electrochemical performance. Even more compelling is the observation that enhanced performance and stability are observed when the active material is in the form of micron-sized powder and not when nanosized in a carbon composite. This behaviour is ascribed to the influence of particle size on the (de)sodiation reaction pathways and on the thickness and composition of the SEI passivation layer. The improved stability of the ternary alloy shows that careful optimization of multicomponent systems could lead to remarkable performance enhancement without the necessity of size confinement, opening the way to facile and low-cost electrode manufacturing Journal Article Journal of Materials Chemistry A 5 44 23198 23208 2050-7488 2050-7496 28 11 2017 2017-11-28 10.1039/C7TA07648G COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2021-01-07T15:11:00.1822271 2017-10-25T10:14:08.5778059 College of Engineering Engineering Marcin W. Orzech 1 Francesco Mazzali 2 James McGettrick 0000-0002-7719-2958 3 Cameron Pleydell-Pearce 4 Trystan Watson 0000-0002-8015-1436 5 Wayne Voice 6 David Jarvis 7 Serena Margadonna 0000-0002-6996-6562 8 0036243-25102017101714.pdf orzech2017.pdf 2017-10-25T10:17:14.4370000 Output 1125257 application/pdf Accepted Manuscript true 2018-10-23T00:00:00.0000000 true eng
title Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
spellingShingle Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
James, McGettrick
Cameron, Pleydell-Pearce
Trystan, Watson
Serena, Margadonna
title_short Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
title_full Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
title_fullStr Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
title_full_unstemmed Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
title_sort Synergic effect of Bi, Sb and Te for the increased stability of bulk alloying anodes for sodium-ion batteries
author_id_str_mv bdbacc591e2de05180e0fd3cc13fa480
564c480cb2abe761533a139c7dbaaca1
a210327b52472cfe8df9b8108d661457
e31904a10b1b1240b98ab52d9977dfbe
author_id_fullname_str_mv bdbacc591e2de05180e0fd3cc13fa480_***_James, McGettrick
564c480cb2abe761533a139c7dbaaca1_***_Cameron, Pleydell-Pearce
a210327b52472cfe8df9b8108d661457_***_Trystan, Watson
e31904a10b1b1240b98ab52d9977dfbe_***_Serena, Margadonna
author James, McGettrick
Cameron, Pleydell-Pearce
Trystan, Watson
Serena, Margadonna
author2 Marcin W. Orzech
Francesco Mazzali
James McGettrick
Cameron Pleydell-Pearce
Trystan Watson
Wayne Voice
David Jarvis
Serena Margadonna
format Journal article
container_title Journal of Materials Chemistry A
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container_start_page 23198
publishDate 2017
institution Swansea University
issn 2050-7488
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college_str College of Engineering
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hierarchy_parent_title College of Engineering
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description Effective use of materials that undergo alloying reactions with sodium is hampered by the substantial volume changes that occur during cycling. One of the most common approaches to improve cycling stability is nanostructuring. However, the processes required for material’s particle downsizing are hardly transferable to large scale production. To alleviate such problems, the ternary alloy Bi0.25Sb1.75Te3 has been designed and its electrochemical performance investigated. The choice of system was driven by the large reversible capacities displayed by both Sb and Te coupled with the highly desirable fracture resistance of Bi. Indeed, micron-sized bulk powder of Bi0.25Sb1.75Te3 showed high capacity retention (retaining 91% of the initial capacity after 100 cycles at 200 mA g-1) and an excellent average coulombic efficiency (99.9% for 100 cycles), both of which are superior to those observed for the bi-component counterpart Sb2Te3 as bulk and nanosized forms. This behaviour indicates that a small substitution of Sb with Bi does have profound effects on the electrochemical performance. Even more compelling is the observation that enhanced performance and stability are observed when the active material is in the form of micron-sized powder and not when nanosized in a carbon composite. This behaviour is ascribed to the influence of particle size on the (de)sodiation reaction pathways and on the thickness and composition of the SEI passivation layer. The improved stability of the ternary alloy shows that careful optimization of multicomponent systems could lead to remarkable performance enhancement without the necessity of size confinement, opening the way to facile and low-cost electrode manufacturing
published_date 2017-11-28T03:56:15Z
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score 10.831132