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@ARTICLE{Heckmann:825869,
      author       = {Heckmann, Andreas and Krott, Manuel and Streipert, Benjamin
                      and Uhlenbruck, Sven and Winter, Martin and Placke, Tobias},
      title        = {{S}uppression of {A}luminum {C}urrent {C}ollector
                      {D}issolution by {P}rotective {C}eramic {C}oatings for
                      {B}etter {H}igh-{V}oltage {B}attery {P}erformance},
      journal      = {ChemPhysChem},
      volume       = {18},
      number       = {1},
      issn         = {1439-4235},
      address      = {Weinheim},
      publisher    = {Wiley-VCH Verl.},
      reportid     = {FZJ-2017-00153},
      pages        = {156-163},
      year         = {2017},
      abstract     = {Batteries based on cathode materials that operate at high
                      cathode potentials, such as LiNi0.5Mn1.5O4 (LNMO), in
                      lithium-ion batteries or graphitic carbons in dual-ion
                      batteries suffer from anodic dissolution of the aluminum
                      (Al) current collector in organic solvent-based electrolytes
                      based on imide salts, such as lithium
                      bis(trifluoromethanesulfonyl) imide (LiTFSI). In this work,
                      we developed a protective surface modification for the Al
                      current collector by applying ceramic coatings of chromium
                      nitride (CrxN) and studied the anodic Al dissolution
                      behavior. By magnetron sputter deposition, two different
                      coating types, which differ in their composition according
                      to the CrN and Cr2N phases, were prepared and characterized
                      by X-ray diffraction, X-ray photoelectron spectroscopy
                      (XPS), scanning electron microscopy (SEM), and their
                      electronic conductivity. Furthermore, the anodic dissolution
                      behavior was studied by cyclic voltammetry and
                      chronocoulometry measurements in two different electrolyte
                      mixtures, that is, LiTFSI in ethyl methyl sulfone and LiTFSI
                      in ethylene carbonate/dimethyl carbonate 1:1 (by weight).
                      These measurements showed a remarkably reduced current
                      density or cumulative charge during the charge process,
                      indicating an improved anodic stability of the protected Al
                      current collector. The coating surfaces after
                      electrochemical treatment were characterized by means of SEM
                      and XPS, and the presence or lack of pit formation, as well
                      as electrolyte degradation products could be well correlated
                      to the electrochemical results.},
      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},
      UT           = {WOS:000393190100024},
      pubmed       = {pmid:27862878},
      doi          = {10.1002/cphc.201601095},
      url          = {https://juser.fz-juelich.de/record/825869},
}