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@ARTICLE{Chayambuka:904162,
      author       = {Chayambuka, Kudakwashe and Cardinaels, Ruth and Gering,
                      Kevin L. and Raijmakers, Luc and Mulder, Grietus and
                      Danilov, Dmitri and Notten, Peter H. L.},
      title        = {{A}n experimental and modeling study of sodium-ion battery
                      electrolytes},
      journal      = {Journal of power sources},
      volume       = {516},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-05732},
      pages        = {230658 -},
      year         = {2021},
      abstract     = {Electrolytes play an integral role in the successful
                      operation of any battery chemistry. The reemergence of the
                      sodium-ion battery (SIB) chemistry has therefore rejuvenated
                      the search for optimized SIB salts and solvents. Recent
                      experiments have found that 1 M NaPF6 in ethylene carbonate
                      (EC) and propylene carbonate (PC), EC0.5:PC0.5 (w/w) is the
                      best binary electrolyte for SIBs. However, mathematical
                      models, to elucidate these experimental findings, have so
                      far been lacking. Furthermore, no attempts to understand the
                      effect of EC composition on the conductivity and electrolyte
                      stability have been performed. Herein, the viscosity and
                      conductivity profiles of NaPF6 in EC0.5:PC0.5 electrolyte
                      are unraveled, using experimental and modeling approaches at
                      different temperatures and salt concentrations. The
                      viscosity is measured in a double-wall Couette cell and for
                      the first time, the ionic conductivity is determined using
                      two Pt blocking electrodes in a PAT-Cell electrochemical
                      setup. Modeling is performed using the Advanced Electrolyte
                      Model (AEM), a statistical mechanics software. It is shown
                      that the conductivity and viscosity relationship follows a
                      simple Stokes' law even at a low temperatures and high
                      concentrations. In addition, the stability of binary and
                      ternary electrolytes on hard carbon is shown to correlate
                      with the preferential ion solvation of EC.},
      cin          = {IEK-9},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1223 - Batteries in Application (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1223},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000715752100001},
      doi          = {10.1016/j.jpowsour.2021.230658},
      url          = {https://juser.fz-juelich.de/record/904162},
}