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Hydrothermal crystallization of Pmn21 Li2FeSiO4 hollow mesocrystals for Li-ion cathode application

Autor: Nicolas Brodusch, Karim Zaghib, Raynald Gauvin, Majid Rasool, Yan Zeng, D. T. Jiang, Dominic H. Ryan, George P. Demopoulos, Hsien-Chieh Chiu

Publikováno v: Chemical Engineering Journal. 359:1592-1602

Lithium transition metal orthosilicates such as Li2FeSiO4 (LFS) have been recognized as promising cathode materials for application in Li-ion batteries because of their high theoretical energy density, safety, and benign/abundant element composition.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::622d2e4138da38a8cd5eda6057455a3f
https://doi.org/10.1016/j.cej.2018.11.013

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Mechanochemically tuned structural annealing: a new pathway to enhancing Li-ion intercalation activity in nanosized βII Li2FeSiO4

Autor: Frédéric Voisard, Xia Lu, Andrea Paolella, Majid Rasool, George P. Demopoulos, Karim Zaghib, Hsien-Chieh Chiu, Raynald Gauvin, D. T. Jiang

Publikováno v: Journal of Materials Chemistry A. 7:13705-13713

In this work, a relatively inactive cathode material, βII orthorhombic Li2FeSiO4 with the Pmn21 space group, is shown to undergo crystal structural changes when subjected to nanosizing by high-energy milling that have a pronounced activation impact

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed0567692571e338e751fcd118c5432b
https://doi.org/10.1039/c9ta01847f

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Ethylenediamine-Enabled Sustainable Synthesis of Mesoporous Nanostructured Li2FeIISiO4 Particles from Fe(III) Aqueous Solution for Li-Ion Battery Application

Autor: Zachary Arthur, Huijing Wei, Bin Wei, Hsien-Chieh Chiu, George P. Demopoulos, Xia Lu, Vincent Emond, Karim Zaghib, D. T. Jiang, Raynald Gauvin

Publikováno v: ACS Sustainable Chemistry & Engineering. 6:7458-7467

Engineering of nanostructured lithium iron silicate (LFS) particles is pursued via a novel benign synthesis approach seeking to understand the crystalline particle formation process and its impact on energy storage capacity. Specifically, mesoporous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::963e6e5562f7a915d4986c2853508e44
https://doi.org/10.1021/acssuschemeng.8b00090

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Li-ion storage dynamics in metastable nanostructured Li2FeSiO4 cathode: Antisite-induced phase transition and lattice oxygen participation

Autor: Jian Wang, George P. Demopoulos, Xia Lu, Jigang Zhou, Hsien-Chieh Chiu, D. T. Jiang, Zachary Arthur, Ning Chen, Karim Zaghib

Publikováno v: Journal of Power Sources. 329:355-363

Li2FeSiO4 (LFS) has drawn much attention as cathode for high capacity Li-ion batteries. Even though significant volume of study has been devoted to its crystal chemistry and electrochemistry, many questions relating to its Li-ion storage dynamics rem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f1908423278d4aa022323e8f3a2e825
https://doi.org/10.1016/j.jpowsour.2016.08.093

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Density functional theory insights into the structural stability and Li diffusion properties of monoclinic and orthorhombic Li 2 FeSiO 4 cathodes

Autor: George P. Demopoulos, D. T. Jiang, Kirk H. Bevan, Xia Lu, Karim Zaghib, Hsien-Chieh Chiu

Publikováno v: Journal of Power Sources. 318:136-145

Lithium iron orthosilicate (Li 2 FeSiO 4 ) is an important alternative cathode for next generation Li-ion batteries due to its high theoretical capacity (330 mA h/g). However, its development has faced great challenges arising from significant struct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57cf63bc90dd0ccf2a749ed2564190d5
https://doi.org/10.1016/j.jpowsour.2016.04.014

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Spontaneous reaction between an uncharged lithium iron silicate cathode and a LiPF6-based electrolyte

Autor: Zachary Arthur, Karim Zaghib, D. T. Jiang, Ning Chen, Xia Lu, Hsien-Chieh Chiu, George P. Demopoulos, Vincent Emond

Publikováno v: Chemical Communications. 52:190-193

The reaction between an uncharged Li2FeSiO4 (LFS) cathode and a LiPF6-EC/DMC electrolyte is revealed by in situ XANES in coin cells. This study shows clear evidence of delithiation and iron oxidation in LFS prior to cycling. Subsequent cycling appear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::968fb6706b31232d657cf3b59fb7d74c
https://doi.org/10.1039/c5cc07197f

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