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@PHDTHESIS{MontielGuerrero:1020597,
      author       = {Montiel Guerrero, Saul Said},
      title        = {{P}erformance {E}nhancement and {C}orrosion {S}tudies of
                      {M}etal–{A}ir {B}atteries},
      school       = {Duisburg-Essen},
      type         = {Dissertation},
      reportid     = {FZJ-2024-00292},
      pages        = {159},
      year         = {2023},
      note         = {Dissertation, Duisburg-Essen, 2023},
      abstract     = {Metal-air batteries (MABs) are an attractive and promising
                      alternative energy storage system to existing batteries due
                      to their high energy density, cost efficiency, and intrinsic
                      safety. They have potential applications in both the
                      electromobility sector and stationary energy storage. This
                      thesis examines the possible uses of MABs, in specific
                      silicon, aluminum, zinc and their alloys, and proposes
                      strategies for performance improvement.One of the main
                      focusses in this research is the potential applications of
                      alkaline and non-aqueous Si-air batteries in low-power
                      electronics. As a proof–of–concept, the use of a
                      Si–air battery with an integrated circuit (IC) on the
                      anode to power an LED is demonstrated. Additionally, the
                      self–destructive capability of the Si–IC is also
                      examined. The study also surveys the potential improvement
                      of Si electrodes through alloying with Al, which show a
                      slight increase in the anodic current densities without
                      passivating the electrode.This work further extends the
                      investigations from the primary Si–air battery to
                      secondary Zn-air batteries (ZABs). ZABs have the advantage
                      that the zinc electrodes can be cycled in several types of
                      electrolytes, including neutral solutions. By doing so, the
                      prejudicial high corrosion of Zn in the alkaline
                      electrolytes is avoided. However, the potentials of zinc in
                      neutral electrolytes are relatively low in comparison to
                      alkaline solutions. To increase the discharge potential of
                      Zn, alloying it with more electronegative materials is
                      proposed, such as Zn–Al alloy. The tested Zn–10
                      $wt.\%Al$ electrodes require, however, an initial cathodic
                      pulse to reveal the more negative potential, which is also
                      limited over time.This study finds that the potential
                      enhancement can be further improved and prolonged by the
                      introduction of the chelating agent
                      ethylenediaminetetraacetic acid (EDTA). Such beneficial
                      effect is present under discharge conditions even after
                      applying relatively high anodic current densities on Zn
                      electrodes. The cycling of the ZABs was possible in both
                      electrolyte formulations but could be slightly extended in
                      presence of EDTA, which also showed higher discharge
                      voltages in comparison to the neat 2M NaCl electrolyte.},
      cin          = {IEK-9},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1223 - Batteries in Application (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1223},
      typ          = {PUB:(DE-HGF)11},
      url          = {https://juser.fz-juelich.de/record/1020597},
}