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@ARTICLE{Im:1050374,
author = {Im, Eunmi and Erkes, Rebecca and Heidler, Marie and Mun,
Jinhong and Guerrero, Saul Said Montiel and Ha, Jee Ho and
Dzieciol, Krzysztof and Yu, Shicheng and Kungl, Hans and
Tempel, Hermann and Lee, Geunsik and Durmus, Yasin Emre and
Eichel, Rüdiger-A.},
title = {{A}mino acid-based complexing agents for improved {Z}n
anode performance in near-neutral aqueous {Z}n-air
batteries},
journal = {Energy storage materials},
volume = {84},
issn = {2405-8289},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {FZJ-2026-00149},
pages = {104862 -},
year = {2026},
note = {BMBF 13XP0536B - FeEnCap: Gekapselte Eisenmaterialien für
Eisen-Slurry/Luft-Akkumulatoren zur stationären
Energiespeicherung mit hoher Kapazität (02.2023-06.2026)},
abstract = {Aqueous electrolytes used in zinc–air batteries often
face issues with low stability and unwanted side reactions,
especially under alkaline conditions. This highlights the
need for alternative electrolyte systems, such as
near-neutral electrolytes. In this study, we explore the
innovative use of amino-acid–based complexing agents,
specifically glycine (Gly) and iminoacetic acid (IDA), to
enhance the performance of Zn electrodes in a 2 M NaCl
electrolyte. Unlike traditional additives, these amino acids
serve a muti purpose: they coordinate with Zn²⁺ ions in
the bulk electrolyte and simultaneously regulate the
interface between Zn and the electrolyte, while providing pH
stability. Density functional theory (DFT) calculations
indicate that this unique interaction alters the solvation
shell of Zn²⁺, which helps reduce the formation of a
passivation layer. In-operando X-ray computed tomography
(XCT) further demonstrates that the amino-acid additives
facilitate uniform Zn deposition and improve the cycling
stability of the plating and stripping process. This work
highlights the significance of solvation shell modulation in
optimizing electrochemical performance and offers valuable
insights for the development of near-neutral
electrolyte-based Zn-air batteries.},
cin = {IET-1},
ddc = {624},
cid = {I:(DE-Juel1)IET-1-20110218},
pnm = {1223 - Batteries in Application (POF4-122) / BMBF 03SF0627B
- Verbundvorhaben iNEW2.0: In iNEW (Inkubator Nachhaltige
Elektrochemische Wertschöpfungsketten) werden neuartige und
leistungsfähige Elektrolyseverfahren zur Anwendung in
nachhaltigen Power-to-X Wertschöpfungsketten erforscht und
entwickelt (03SF0627B)},
pid = {G:(DE-HGF)POF4-1223 / G:(BMBF)03SF0627B},
typ = {PUB:(DE-HGF)16},
doi = {10.1016/j.ensm.2025.104862},
url = {https://juser.fz-juelich.de/record/1050374},
}