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

Schuster, M. E., Teschner, D., Popovic, J., Ohmer, N., Girgsdies, F., Tornow, J., et al. (2014). Charging and discharging behavior of solvothermal LiFePO4 cathode material investigated by combined EELS/NEXAFS study. Chemistry of Materials, 26(2), 1040-1047. doi:10.1021/cm403115t.

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 Creators:
Schuster, Manfred Erwin, Author
Teschner, Detre, Author
Popovic, Jelena, Author
Ohmer, Nils, Author
Girgsdies, Frank, Author
Tornow, Julian, Author
Willinger, Marc Georg, Author
Samuelis, Dominik, Author
Titirici, M. M.1, Author              
Maier, Joachim, Author
Schlögl, Robert, Author
Affiliations:
1Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863288              

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 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.

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Language(s): eng - English
 Dates: 2013-12-112013-09-182013-12-192013-12-192014
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/cm403115t
 Degree: -

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Title: Chemistry of Materials
  Other : Chem. Mater.
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 26 (2) Sequence Number: - Start / End Page: 1040 - 1047 Identifier: ISSN: 0897-4756