Zobrazeno 1 - 10
of 160
pro vyhledávání: '"John O. Thomas"'
Publikováno v:
Solid State Ionics. 192:279-283
A mathematical model describing ionic transport in a 3D-microbattery (3D-MB) electrolyte is developed here using finite element methodology. The model is then exploited to study a 3D-MB based on an interdigitated plate (“trench”) architecture for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cec9d38009ece2d8cb59ad81b89c6cb6
https://doi.org/10.1016/j.ssi.2010.02.007
https://doi.org/10.1016/j.ssi.2010.02.007
Publikováno v:
Solid State Ionics. 192:356-359
Nanostructured Li 2 FeSiO 4 /C was synthesized by high-energy ball-milling and the amorphous citrate-assisted techniques. Similar redox behaviour is observed for samples prepared by the amorphous citrate-assisted route followed by a 4 h heat treatmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4a670b86b1c0362301137d03136a96b
https://doi.org/10.1016/j.ssi.2010.03.030
https://doi.org/10.1016/j.ssi.2010.03.030
Autor:
John O. Thomas, Anti Liivat
Publikováno v:
Solid State Ionics. 192:58-64
The orthosilicate family of materials Li(2)MSiO(4) for M = Fe, Mn and Co are coming to be seen as potentially cheap cathode materials for large-scale Li-ion batteries, not least through the possibility for significant capacity gains if more than one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e0d7a63a279908cfae348f5cbfd36c
https://doi.org/10.1016/j.ssi.2009.12.009
https://doi.org/10.1016/j.ssi.2009.12.009
Autor:
John O. Thomas, Anti Liivat
Publikováno v:
Computational Materials Science. 50:191-197
Density Functional Theory (DFT) has here been used to study the substitution of SiO 4 4 - for VO 4 3 - polyanions in the orthosilicate Li-ion battery cathode material Li2FeSiO4, in order to enhance electron transfer between the TM-ions and thereby ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d25961b1c7bce732b2a429050b857ea2
https://doi.org/10.1016/j.commatsci.2010.07.025
https://doi.org/10.1016/j.commatsci.2010.07.025
Publikováno v:
Journal of Power Sources. 195:5962-5965
A diffraction profile is here derived from classical Molecular Dynamics (MD) simulation for the hydrated perfluorosulphonic acid fuel-cell membrane material Nafion ® at 363 K using a 76 A × 76 A × 76 A box. The MD simulation reproduces the phase-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0e2d8d3542ea8551f9bc616589b1676
https://doi.org/10.1016/j.jpowsour.2009.12.057
https://doi.org/10.1016/j.jpowsour.2009.12.057
Publikováno v:
The Journal of Physical Chemistry B. 114:6056-6064
Classical molecular dynamics modeling studies at 363 K are reported of the local atomic-level and macroscopic nanostructures of two well-known perfluorosulfonic acid proton exchange polymer membrane materials: Nafion and Hyflon. The influence of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7375ee82cd62da12b6bf51fdbea8c782
https://doi.org/10.1021/jp903288y
https://doi.org/10.1021/jp903288y
Publikováno v:
Computational Materials Science. 47:678-684
DFT calculations are presented which probe the effect of low-concentration Mn substitution of the Fe-sites in Li2FeSiO4: the promising new and potentially cheap cathode material for upscaled Li-ion battery applications. The LixFe0.875Mn0.125SiO4 syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25a526bf055461b52f15e699d51851d6
https://doi.org/10.1016/j.commatsci.2009.10.008
https://doi.org/10.1016/j.commatsci.2009.10.008
Publikováno v:
J. Mater. Chem.. 19:82-88
X-Ray photoelectron spectroscopy (XPS) has been used to characterise the surfaces of carbon-coated Li2FeSiO4 cathodes extracted from Li-ion batteries in both a charged and discharged state. 1 M lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) and l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f000d4c5502bfe9a193d3c50211797a
https://doi.org/10.1039/b813099j
https://doi.org/10.1039/b813099j
Autor:
John O. Thomas, Lennart Häggström, Roger Frech, Christopher M. Burba, Anton Nytén, Agneta Seidel
Publikováno v:
Journal of Solid State Electrochemistry. 13:1267-1272
The first discharge of the Li+ ion anode material LiSn2(PO4)3 was investigated with Mossbauer spectroscopy and electrochemical techniques. Mossbauer spectroscopy provided insight into the structure of the tin atoms of the fully discharged anode mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc679cdd24e45c532127d8f48d081aa
https://doi.org/10.1007/s10008-008-0661-9
https://doi.org/10.1007/s10008-008-0661-9
Publikováno v:
Electrochemistry Communications, Vol 8, Iss 5, Pp 797-800 (2006)
A density functional theory (DFT) calculation is reported for the novel Li-ion battery cathode material lithium iron silicate (Li2FeSiO4) and for three possible Li arrangements in the delithiated structure (LiFeSiO4). Relevant battery-related propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beaaa94503ea1ea88b9f3db9a6ae6081
https://doi.org/10.1016/j.elecom.2006.03.012
https://doi.org/10.1016/j.elecom.2006.03.012