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@INPROCEEDINGS{Durmus:1020596,
      author       = {Durmus, Yasin Emre and Montiel Guerrero, Saul Said and
                      Dzieciol, Krzysztof and Kungl, Hans and Tempel, Hermann and
                      Eichel, Rüdiger-A.},
      title        = {{I}mproved {E}lectrochemical {P}erformance of {Z}inc
                      {A}nodes by {E}lectrolyte {A}dditives in {N}ear-{N}eu-tral
                      {Z}inc-{A}ir {B}atteries},
      reportid     = {FZJ-2024-00291},
      year         = {2023},
      abstract     = {Metal-air batteries are considered up-and-coming
                      electrochemical energy storage technolo-gies due to
                      possessing very high theoretical energy densities while
                      utilizing cost-effective, safe, and abundant materials.
                      Among various possible configurations, zinc-based metal-air
                      batteries are one of the most advanced for primary and
                      secondary applications. Although primary Zinc-air batteries
                      (ZABs) have been commercially available for various
                      applications, secondary bat-teries have faced challenges,
                      especially in alkaline media. In this regard, employing
                      aqueous neutral electrolytes brings several advantages, such
                      as suppressed carbonization of the elec-trolyte and dendrite
                      formation. However, the performance of such ZABs with
                      neutral electro-lytes can be hindered by the passivation of
                      the zinc surface, the formation of insoluble zinc species,
                      and corrosion.The objective of the present work is to
                      evaluate the influence of Ethylenediaminetetraacetic acid
                      (EDTA) electrolyte additive on the performance of
                      near-neutral secondary Zn-air batteries. The electrochemical
                      behaviour of Zn electrodes was investigated in 2M NaCl (pH
                      10) solutions with and without EDTA additive. Initially,
                      open-circuit and potentiodynamic polarization exper-iments
                      were conducted to extract the corrosion parameters of the Zn
                      electrodes. The interme-diate-term (24 h) discharge
                      experiments were performed under current densities of 0.1,
                      0.25, 0.5, and 1 mA/cm2 in a three-electrode half-cell
                      setup. These electrochemical measurements confirmed that Zn
                      is only partially active in neat 2M NaCl electrolytes.
                      However, it could still be discharged up to 1 mA/cm2 at
                      discharge potentials around −1.0 VAg/AgCl. In order to
                      study the dissolution behaviour and the discharge products,
                      the surface of the electrodes was further characterized by a
                      laser scanning microscope (LSM), X-ray diffraction (XRD),
                      and scanning electron microscope (SEM) upon discharge
                      experiments. The performance of full-cell Zn-air batteries
                      was then evaluated in galvanostatic discharge experiments
                      (in primary-mode) up to 930 h with specific energies up to
                      840 Wh/kgZn and in galvanostatic cycling experiments (in
                      secondary mode) up to 575 h with 70 cycles. In comparison to
                      neat electrolytes, the addition of EDTA to the electrolyte
                      results in enhanced specific energies and mass utilization
                      efficien-cies of near-neutral zinc-air batteries.},
      month         = {Sep},
      date          = {2023-09-18},
      organization  = {3RD INTERNATIONAL ZINC-AIR AND OTHER
                       ZINC BATTERIES WORKSHOP, Ulm (Germany),
                       18 Sep 2023 - 19 Sep 2023},
      subtyp        = {After Call},
      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)24},
      url          = {https://juser.fz-juelich.de/record/1020596},
}