eprintid: 1472593
rev_number: 26
eprint_status: archive
userid: 608
dir: disk0/01/47/25/93
datestamp: 2015-11-16 12:11:44
lastmod: 2021-09-19 23:28:05
status_changed: 2015-11-16 12:11:44
type: article
metadata_visibility: show
creators_name: Luebke, M
creators_name: Johnson, I
creators_name: Makwana, NM
creators_name: Brett, D
creators_name: Shearing, P
creators_name: Liu, Z
creators_name: Darr, JA
title: High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
divisions: C06
divisions: F56
keywords: Tin doped titania, Continuous hydrothermal flow synthesis, Lithium ion battery, Anatase, Anode, High power
note: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).
abstract: A range of phase-pure anatase TiO2 (∼5 nm) and Sn-doped TiO2 nanoparticles with the formula Ti1-xSnxO2 (where x = 0, 0.06, 0.11 and 0.15) were synthesized using a continuous hydrothermal flow synthesis (CHFS) reactor. Charge/discharge cycling tests were carried out in two different potential ranges of 3 to 1 V and also a wider range of 3 to 0.05 V vs Li/Li+. In the narrower potential range, the undoped TiO2 nanoparticles display superior electrochemical performance to all the Sn-doped titania crystallites. In the wider potential range, the Sn-doped samples perform better than undoped TiO2. The sample with composition Ti0.85Sn0.15O2, shows a capacity of ca. 350 mAh g−1 at an applied constant current of 100 mA g−1 and a capacity of 192.3 mAh g−1 at a current rate of 1500 mA g−1. After 500 charge/discharge cycles (at a high constant current rate of 382 mA g−1), the same nanomaterial anode retains a relatively high specific capacity of 240 mAh g−1. The performance of these nanomaterials is notable, particularly as they are processed into electrodes, directly from the CHFS process (after drying) without any post-synthesis heat-treatment, and they are made without any conductive surface coating.
date: 2015-10-30
date_type: published
official_url: http://dx.doi.org/10.1016/j.jpowsour.2015.06.039
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1042749
doi: 10.1016/j.jpowsour.2015.06.039
lyricists_name: Brett, Daniel
lyricists_name: Darr, Jawwad
lyricists_name: Johnson, Ian
lyricists_name: Makwana, Neel
lyricists_name: Shearing, Paul
lyricists_id: DBRET49
lyricists_id: JDARR17
lyricists_id: IDJOH31
lyricists_id: NMAKW80
lyricists_id: PSHEA33
actors_name: Darr, Jawwad
actors_name: Barczynska, Patrycja
actors_id: JDARR17
actors_id: PBARC91
actors_role: owner
actors_role: impersonator
full_text_status: public
publication: Journal of Power Sources
volume: 294
pagerange: 94-102
issn: 0378-7753
citation:        Luebke, M;    Johnson, I;    Makwana, NM;    Brett, D;    Shearing, P;    Liu, Z;    Darr, JA;      (2015)    High power TiO2 and high capacity Sn-doped TiO2 nanomaterial anodes for lithium-ion batteries.                   Journal of Power Sources , 294    pp. 94-102.    10.1016/j.jpowsour.2015.06.039 <https://doi.org/10.1016/j.jpowsour.2015.06.039>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1472593/1/1-s2.0-S0378775315010733-main.pdf