Charging and discharging behavior of solvothermal LiFePO4 cathode material investigated by combined EELS/NEXAFS study

Manfred E. Schuster; Detre Teschner; Jelena Popovic; Nils Ohmer; Frank Girgsdies; Julian Tornow; Marc G. Willinger; Dominik Samuelis; Maria Magdalena Titirici; Joachim Maier; Robert Schlögl

doi:10.1021/cm403115t

Charging and discharging behavior of solvothermal LiFePO₄ cathode material investigated by combined EELS/NEXAFS study

Manfred E. Schuster, Detre Teschner, Jelena Popovic, Nils Ohmer, Frank Girgsdies, Julian Tornow, Marc G. Willinger, Dominik Samuelis, Maria Magdalena Titirici, Joachim Maier, Robert Schlögl

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20 Scopus citations

Abstract

LiFePO₄ cathode material obtained via solvothermal synthesis was investigated at several charging and discharging stages by a combination of bulk (EELS) and surface sensitive (NEXAFS) methods in order to get insight into the distribution of Li in the surface and bulk region of the particles. Different behavior was observed as a function of the particles morphology. The turbostratic stacking of layers in nanosized crystals induces higher dimensional defects responsible for sluggish Li insertion and extraction within the structure. In contrast, microstructured crystals without higher dimensional defects do not exhibit sluggish Li insertion/extraction, and achieve a higher degree of reversibility during electrochemical cycling.

Original language	English
Pages (from-to)	1040-1047
Number of pages	8
Journal	Chemistry of Materials
Volume	26
Issue number	2
DOIs	https://doi.org/10.1021/cm403115t
State	Published - 28 Jan 2014
Externally published	Yes

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title = "Charging and discharging behavior of solvothermal LiFePO4 cathode material investigated by combined EELS/NEXAFS study",

abstract = "LiFePO4 cathode material obtained via solvothermal synthesis was investigated at several charging and discharging stages by a combination of bulk (EELS) and surface sensitive (NEXAFS) methods in order to get insight into the distribution of Li in the surface and bulk region of the particles. Different behavior was observed as a function of the particles morphology. The turbostratic stacking of layers in nanosized crystals induces higher dimensional defects responsible for sluggish Li insertion and extraction within the structure. In contrast, microstructured crystals without higher dimensional defects do not exhibit sluggish Li insertion/extraction, and achieve a higher degree of reversibility during electrochemical cycling.",

author = "Schuster, {Manfred E.} and Detre Teschner and Jelena Popovic and Nils Ohmer and Frank Girgsdies and Julian Tornow and Willinger, {Marc G.} and Dominik Samuelis and Titirici, {Maria Magdalena} and Joachim Maier and Robert Schl{\"o}gl",

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doi = "10.1021/cm403115t",

language = "English",

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T1 - Charging and discharging behavior of solvothermal LiFePO4 cathode material investigated by combined EELS/NEXAFS study

AU - Schuster, Manfred E.

AU - Teschner, Detre

AU - Popovic, Jelena

AU - Ohmer, Nils

AU - Girgsdies, Frank

AU - Tornow, Julian

AU - Willinger, Marc G.

AU - Samuelis, Dominik

AU - Titirici, Maria Magdalena

AU - Maier, Joachim

AU - Schlögl, Robert

PY - 2014/1/28

Y1 - 2014/1/28

N2 - LiFePO4 cathode material obtained via solvothermal synthesis was investigated at several charging and discharging stages by a combination of bulk (EELS) and surface sensitive (NEXAFS) methods in order to get insight into the distribution of Li in the surface and bulk region of the particles. Different behavior was observed as a function of the particles morphology. The turbostratic stacking of layers in nanosized crystals induces higher dimensional defects responsible for sluggish Li insertion and extraction within the structure. In contrast, microstructured crystals without higher dimensional defects do not exhibit sluggish Li insertion/extraction, and achieve a higher degree of reversibility during electrochemical cycling.

AB - LiFePO4 cathode material obtained via solvothermal synthesis was investigated at several charging and discharging stages by a combination of bulk (EELS) and surface sensitive (NEXAFS) methods in order to get insight into the distribution of Li in the surface and bulk region of the particles. Different behavior was observed as a function of the particles morphology. The turbostratic stacking of layers in nanosized crystals induces higher dimensional defects responsible for sluggish Li insertion and extraction within the structure. In contrast, microstructured crystals without higher dimensional defects do not exhibit sluggish Li insertion/extraction, and achieve a higher degree of reversibility during electrochemical cycling.

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U2 - 10.1021/cm403115t

DO - 10.1021/cm403115t

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JO - Chemistry of Materials

JF - Chemistry of Materials

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ER -

Charging and discharging behavior of solvothermal LiFePO₄ cathode material investigated by combined EELS/NEXAFS study

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