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\n\n \n \n \n \n \n Identifying the Distribution of Al$^{\\textrm{3+}}$ in LiNi$_{\\textrm{0.8}}$Co$_{\\textrm{0.15}}$Al$_{\\textrm{0.05}}$O$_{\\textrm{2}}$.\n \n \n \n\n\n \n Trease, N.; Seymour, I.; Radin, M.; Liu, H.; Liu, H.; Hy, S.; Chernova, N.; Parikh, P.; Devaraj, A.; Wiaderek, K.; Chupas, P.; Chapman, K.; Whittingham, M. S.; Meng, Y. S.; Van der Ven, A.; and Grey, C.\n\n\n \n\n\n\n
Chemistry of Materials, 28(22): 8170 – 8180. October 2016.\n
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@article{trease_identifying_2016,\n\ttitle = {Identifying the {Distribution} of {Al}$^{\\textrm{3+}}$ in {LiNi}$_{\\textrm{0.8}}${Co}$_{\\textrm{0.15}}${Al}$_{\\textrm{0.05}}${O}$_{\\textrm{2}}$},\n\tvolume = {28},\n\tcopyright = {All rights reserved},\n\tissn = {0897-4756},\n\tdoi = {10.1021/acs.chemmater.6b02797},\n\tabstract = {The doping of Al into layered Li transition metal (TM) oxide cathode materials, LiTMO$_{\\textrm{2}}$, is known to improve the structural and thermal stability, although the origin of the enhanced properties is not well understood. The effect of aluminum doping on layer stabilization has been investigated using a combination of techniques to measure the aluminum distribution in layered LiNi$_{\\textrm{0.8}}$Co$_{\\textrm{0.15}}$Al$_{\\textrm{0.05}}$O$_{\\textrm{2}}$ (NCA) over multiple length scales with $^{\\textrm{27}}$Al and $^{\\textrm{7}}$Li MAS NMR, local electrode atom probe (APT) tomography, X-ray and neutron diffraction, DFT, and SQUID magnetic susceptibility measurements. APT ion maps show a homogenous distribution of Ni, Co, Al and O$_{\\textrm{2}}$ throughout the structure at the single particle level in agreement with the high-temperature phase diagram. $^{\\textrm{7}}$Li and $^{\\textrm{27}}$Al NMR indicates that the Ni3+ ions undergo a dynamic Jahn-Teller (JT) distortion. $^{\\textrm{27}}$Al NMR spectra indicate that the Al reduces the strain associated with the JT distortion, by preferential electronic ordering of the JT long bonds directed toward the Al$^{\\textrm{3+}}$ ion. The ability to understand the complex atomic and orbital ordering around Al$^{\\textrm{3+}}$ demonstrated in the current method will be useful for studying the local environment of Al$^{\\textrm{3+}}$ in a range of transition metal oxide battery materials.},\n\tnumber = {22},\n\tjournal = {Chemistry of Materials},\n\tauthor = {Trease, Nicole and Seymour, Ieuan and Radin, Maxwell and Liu, Haodong and Liu, Hao and Hy, Sunny and Chernova, Natasha and Parikh, Pritesh and Devaraj, Arun and Wiaderek, Kamila and Chupas, Peter and Chapman, Karena and Whittingham, M. Stanley and Meng, Ying Shirley and Van der Ven, Anton and Grey, Clare},\n\tmonth = oct,\n\tyear = {2016},\n\tpages = {8170 -- 8180},\n}\n\n\n\n
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\n The doping of Al into layered Li transition metal (TM) oxide cathode materials, LiTMO$_{\\textrm{2}}$, is known to improve the structural and thermal stability, although the origin of the enhanced properties is not well understood. The effect of aluminum doping on layer stabilization has been investigated using a combination of techniques to measure the aluminum distribution in layered LiNi$_{\\textrm{0.8}}$Co$_{\\textrm{0.15}}$Al$_{\\textrm{0.05}}$O$_{\\textrm{2}}$ (NCA) over multiple length scales with $^{\\textrm{27}}$Al and $^{\\textrm{7}}$Li MAS NMR, local electrode atom probe (APT) tomography, X-ray and neutron diffraction, DFT, and SQUID magnetic susceptibility measurements. APT ion maps show a homogenous distribution of Ni, Co, Al and O$_{\\textrm{2}}$ throughout the structure at the single particle level in agreement with the high-temperature phase diagram. $^{\\textrm{7}}$Li and $^{\\textrm{27}}$Al NMR indicates that the Ni3+ ions undergo a dynamic Jahn-Teller (JT) distortion. $^{\\textrm{27}}$Al NMR spectra indicate that the Al reduces the strain associated with the JT distortion, by preferential electronic ordering of the JT long bonds directed toward the Al$^{\\textrm{3+}}$ ion. The ability to understand the complex atomic and orbital ordering around Al$^{\\textrm{3+}}$ demonstrated in the current method will be useful for studying the local environment of Al$^{\\textrm{3+}}$ in a range of transition metal oxide battery materials.\n
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\n\n \n \n \n \n \n \n Thermodynamics, Kinetics and Structural Evolution of ε-LiVOPO 4 over Multiple Lithium Intercalation.\n \n \n \n \n\n\n \n Lin, Y.; Wen, B.; Wiaderek, K. M.; Sallis, S.; Liu, H.; Lapidus, S. H.; Borkiewicz, O. J.; Quackenbush, N. F.; Chernova, N. A.; Karki, K.; Omenya, F.; Chupas, P. J.; Piper, L. F. J.; Whittingham, M. S.; Chapman, K. W.; and Ong, S. P.\n\n\n \n\n\n\n
Chemistry of Materials, 28(6): 1794–1805. March 2016.\n
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@article{lin_thermodynamics_2016,\n\ttitle = {Thermodynamics, {Kinetics} and {Structural} {Evolution} of ε-{LiVOPO} 4 over {Multiple} {Lithium} {Intercalation}},\n\tvolume = {28},\n\tcopyright = {All rights reserved},\n\tissn = {0897-4756},\n\turl = {http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.5b04880},\n\tdoi = {10.1021/acs.chemmater.5b04880},\n\tnumber = {6},\n\tjournal = {Chemistry of Materials},\n\tauthor = {Lin, Yuh-Chieh and Wen, Bohua and Wiaderek, Kamila M. and Sallis, Shawn and Liu, Hao and Lapidus, Saul H. and Borkiewicz, Olaf J. and Quackenbush, Nicholas F. and Chernova, Natasha A. and Karki, Khim and Omenya, Fredrick and Chupas, Peter J. and Piper, Louis F. J. and Whittingham, M. Stanley and Chapman, Karena W. and Ong, Shyue Ping},\n\tmonth = mar,\n\tyear = {2016},\n\tpages = {1794--1805},\n}\n\n\n\n
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\n\n \n \n \n \n \n \n Unraveling the Complex Delithiation Mechanisms of Olivine-Type Cathode Materials, LiFe x Co 1– x PO 4.\n \n \n \n \n\n\n \n Strobridge, F. C.; Liu, H.; Leskes, M.; Borkiewicz, O. J.; Wiaderek, K. M.; Chupas, P. J.; Chapman, K. W.; and Grey, C. P.\n\n\n \n\n\n\n
Chemistry of Materials, 28(11): 3676–3690. June 2016.\n
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@article{strobridge_unraveling_2016,\n\ttitle = {Unraveling the {Complex} {Delithiation} {Mechanisms} of {Olivine}-{Type} {Cathode} {Materials}, {LiFe} x {Co} 1– x {PO} 4},\n\tvolume = {28},\n\tcopyright = {All rights reserved},\n\tissn = {0897-4756},\n\turl = {http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b00319},\n\tdoi = {10.1021/acs.chemmater.6b00319},\n\tnumber = {11},\n\tjournal = {Chemistry of Materials},\n\tauthor = {Strobridge, Fiona C. and Liu, Hao and Leskes, Michal and Borkiewicz, Olaf J. and Wiaderek, Kamila M. and Chupas, Peter J. and Chapman, Karena W. and Grey, Clare P.},\n\tmonth = jun,\n\tyear = {2016},\n\tpages = {3676--3690},\n}\n\n\n\n
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\n\n \n \n \n \n \n \n Influence of particle size, cycling rate and temperature on the lithiation process of anatase TiO$_{\\textrm{2}}$.\n \n \n \n \n\n\n \n Liu, H.; and Grey, C. P.\n\n\n \n\n\n\n
Journal of Materials Chemistry A, 4(17): 6433–6446. 2016.\n
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@article{liu_influence_2016,\n\ttitle = {Influence of particle size, cycling rate and temperature on the lithiation process of anatase {TiO}$_{\\textrm{2}}$},\n\tvolume = {4},\n\tcopyright = {All rights reserved},\n\tissn = {2050-7488},\n\turl = {http://xlink.rsc.org/?DOI=C6TA00673F},\n\tdoi = {10.1039/C6TA00673F},\n\tabstract = {A continuous structural change during the (de)lithiation of lithium-ion battery material, anatase TiO 2 , which undergoes a crystal symmetry change, was not found even at high rates.},\n\tnumber = {17},\n\tjournal = {Journal of Materials Chemistry A},\n\tauthor = {Liu, Hao and Grey, Clare P.},\n\tyear = {2016},\n\tpages = {6433--6446},\n}\n\n\n\n\n\n\n\n
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\n A continuous structural change during the (de)lithiation of lithium-ion battery material, anatase TiO 2 , which undergoes a crystal symmetry change, was not found even at high rates.\n
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\n\n \n \n \n \n \n \n Automatic Tuning Matching Cycler (ATMC) in situ NMR spectroscopy as a novel approach for real-time investigations of Li- and Na-ion batteries.\n \n \n \n \n\n\n \n Pecher, O.; Bayley, P. M.; Liu, H.; Liu, Z.; Trease, N. M.; and Grey, C. P.\n\n\n \n\n\n\n
Journal of Magnetic Resonance, 265: 200–209. April 2016.\n
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@article{pecher_automatic_2016,\n\ttitle = {Automatic {Tuning} {Matching} {Cycler} ({ATMC}) in situ {NMR} spectroscopy as a novel approach for real-time investigations of {Li}- and {Na}-ion batteries},\n\tvolume = {265},\n\tcopyright = {All rights reserved},\n\tissn = {10907807},\n\turl = {http://linkinghub.elsevier.com/retrieve/pii/S1090780716000902},\n\tdoi = {10.1016/j.jmr.2016.02.008},\n\tjournal = {Journal of Magnetic Resonance},\n\tauthor = {Pecher, Oliver and Bayley, Paul M. and Liu, Hao and Liu, Zigeng and Trease, Nicole M. and Grey, Clare P.},\n\tmonth = apr,\n\tyear = {2016},\n\tpages = {200--209},\n}\n\n\n\n
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\n\n \n \n \n \n \n \n A radially accessible tubular in situ X-ray cell for spatially resolved operando scattering and spectroscopic studies of electrochemical energy storage devices.\n \n \n \n \n\n\n \n Liu, H.; Allan, P. K.; Borkiewicz, O. J.; Kurtz, C.; Grey, C. P.; Chapman, K. W.; and Chupas, P. J.\n\n\n \n\n\n\n
Journal of Applied Crystallography, 49(5): 1665–1673. October 2016.\n
Publisher: International Union of Crystallography\n\n
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@article{liu_radially_2016,\n\ttitle = {A radially accessible tubular in situ {X}-ray cell for spatially resolved operando scattering and spectroscopic studies of electrochemical energy storage devices},\n\tvolume = {49},\n\tcopyright = {All rights reserved},\n\tissn = {1600-5767},\n\turl = {http://scripts.iucr.org/cgi-bin/paper?S1600576716012632},\n\tdoi = {10.1107/S1600576716012632},\n\tabstract = {A tubular operando electrochemical cell has been developed to allow spatially resolved X-ray scattering and spectroscopic measurements of individual cell components, or regions thereof, during device operation. These measurements are enabled by the tubular cell geometry, wherein the X-ray-transparent tube walls allow radial access for the incident and scattered/transmitted X-ray beam; by probing different depths within the electrode stack, the transformation of different components or regions can be resolved. The cell is compatible with a variety of synchrotron-based scattering, absorption and imaging methodologies. The reliability of the electrochemical cell and the quality of the resulting X-ray scattering and spectroscopic data are demonstrated for two types of energy storage: the evolution of the distribution of the state of charge of an Li-ion battery electrode during cycling is documented using X-ray powder diffraction, and the redistribution of ions between two porous carbon electrodes in an electrochemical double-layer capacitor is documented using X-ray absorption near-edge spectroscopy.},\n\tnumber = {5},\n\tjournal = {Journal of Applied Crystallography},\n\tauthor = {Liu, Hao and Allan, Phoebe K. and Borkiewicz, Olaf J. and Kurtz, Charles and Grey, Clare P. and Chapman, Karena W. and Chupas, Peter J.},\n\tmonth = oct,\n\tyear = {2016},\n\tnote = {Publisher: International Union of Crystallography},\n\tpages = {1665--1673},\n}\n\n\n\n
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\n A tubular operando electrochemical cell has been developed to allow spatially resolved X-ray scattering and spectroscopic measurements of individual cell components, or regions thereof, during device operation. These measurements are enabled by the tubular cell geometry, wherein the X-ray-transparent tube walls allow radial access for the incident and scattered/transmitted X-ray beam; by probing different depths within the electrode stack, the transformation of different components or regions can be resolved. The cell is compatible with a variety of synchrotron-based scattering, absorption and imaging methodologies. The reliability of the electrochemical cell and the quality of the resulting X-ray scattering and spectroscopic data are demonstrated for two types of energy storage: the evolution of the distribution of the state of charge of an Li-ion battery electrode during cycling is documented using X-ray powder diffraction, and the redistribution of ions between two porous carbon electrodes in an electrochemical double-layer capacitor is documented using X-ray absorption near-edge spectroscopy.\n
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