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@ARTICLE{Bitsch:829002,
      author       = {Bitsch, Boris and Gallasch, Tobias and Schroeder, Melanie
                      and Börner, Markus and Winter, Martin and Willenbacher,
                      Norbert},
      title        = {{C}apillary suspensions as beneficial formulation concept
                      for high energy density {L}i-ion battery electrodes},
      journal      = {Journal of power sources},
      volume       = {328},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-02819},
      pages        = {114 - 123},
      year         = {2016},
      abstract     = {We introduce a novel formulation concept to prepare high
                      capacity graphite electrodes for lithium ion batteries. The
                      concept is based on the capillary suspension phenomenon:
                      graphite and conductive agent are dispersed in an aqueous
                      binder solution and the organic solvent octanol is added as
                      immiscible, secondary fluid providing the formation of a
                      sample-spanning network resulting in unique stability and
                      coating properties. No additional processing steps compared
                      to conventional slurry preparation are required. The
                      resulting ultra-thick electrodes comprise mass loadings of
                      about 16.5 mg cm−2, uniform layer thickness, and superior
                      edge contours. The adjustment of mechanical energy input
                      ensures uniform distribution of the conductive agent and
                      sufficient electronic conductivity of the final dry
                      composite electrode. The resulting pore structure is due to
                      the stable network provided by the secondary fluid which
                      evaporates residue-free during drying. Constant
                      current-constant potential (CC-CP) cycling clearly indicates
                      that the corresponding microstructure significantly improves
                      the kinetics of reversible Li+ (de-) intercalation. A double
                      layer electrode combining a conventionally prepared layer
                      coated directly onto the Cu current collector with an upper
                      layer stabilized with octanol was prepared applying
                      wet-on-wet coating. CC-CP cycling data confirms that staged
                      porosity within the electrode cross section results in
                      superior electrochemical performance.},
      cin          = {IEK-12},
      ddc          = {620},
      cid          = {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:000383293400013},
      doi          = {10.1016/j.jpowsour.2016.07.102},
      url          = {https://juser.fz-juelich.de/record/829002},
}