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@ARTICLE{Schwab:878682,
      author       = {Schwab, C. and Höweling, A. and Windmüller, Anna and
                      Gonzalez-Julian, J. and Möller, Sören and Binder, J. R.
                      and Uhlenbruck, S. and Guillon, O. and Martin, M.},
      title        = {{B}ulk and grain boundary {L}i-diffusion in dense
                      {L}i{M}n2{O}4 pellets by means of isotope exchange and
                      {T}o{F}-{SIMS} analysis},
      journal      = {Physical chemistry, chemical physics},
      volume       = {21},
      number       = {47},
      issn         = {1463-9084},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2020-03000},
      pages        = {26066 - 26076},
      year         = {2019},
      abstract     = {Lithium diffusion in LiMn2O4 pellets is studied by means of
                      isotope exchange and Time-of-Flight Secondary Ion Mass
                      Spectrometry (ToF-SIMS). A 6Li-enriched film deposited by
                      Pulsed Laser Deposition (PLD) on a dense LiMn2O4 pellet with
                      natural abundance of lithium isotopes is used to study the
                      tracer diffusion of lithium. The measured profiles are
                      analyzed by numerical models describing the 6Li tracer
                      diffusion from the film into the pellet. Experiments in the
                      Harrison type B regime of diffusion kinetics allow for the
                      distinction and simultaneous determination of bulk and grain
                      boundary diffusion coefficients. Changing the experimental
                      conditions to reach Harrison type A behavior yields
                      effective diffusion coefficients for lithium tracer
                      diffusion in LiMn2O4. Activation energies for bulk and grain
                      boundary diffusion were obtained from experiments at
                      different temperatures. Our values are critically compared
                      to previous studies.},
      cin          = {IEK-1 / IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-12-20141217},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31746869},
      UT           = {WOS:000501356000011},
      doi          = {10.1039/C9CP05128G},
      url          = {https://juser.fz-juelich.de/record/878682},
}