20.500.12556/DiRROS-16238 Electrochemical cycling behaviour and shape changes of Zn electrodes in mildly acidic aqueous electrolytes containing quaternary ammonium salts Secondary Zn–based batteries are a valid alternative to Li for stationary storage, but commercial devices are not yet available, chiefly owing to anode shape-change and passivation issues. Mildly acidic aqueous solutions are actively studied, since they seem to limit unstable growth of Zn, with respect to the alkaline ones, customary for primary batteries. Additives can further improve the performance of mildly acidic electrolytes. In this work we focus on the impact of a series of quaternary ammonium salts (TBAB, CTAB, DMDTDAB, BDMPAC, BPPEI, PDADMAC), selected to represent a comprehensive range of molecular functionalities. Electrochemical measurements (cyclic voltammetry, chronopotentiometry and galvanostatic-cycling in split-cells), combined with 2D and 3D imaging techniques (SEM, stereomicroscopy and in situ tomography) were adopted for the assessment Zn behaviour. This multi-technique approach pinpointed TBAB as the single most effective additive for low-current density operation, while at high current densities the additive-free electrolyte allows better cycling performance, coherently with similar results for alkaline electrolytes. battery electrolyte electrochemical measurements quaternary Ammomium salt X-ray computed microtomography mobility baterija elektroliti elektrokemijske meritve kvartarna amonijeva sol rentgenska računalniška mikrotomografija mobilnost true false true Wiley-VCH Angleški jezik Slovenski jezik © 2023The Authors. ChemElectroChempublishedby Wiley-VCHGmbH Neznano 2023-02-10 07:13:56 2023-07-06 08:36:33 2023-07-07 03:35:01 0000-00-00 00:00:00 2023 0 0 Opis vira z dne 3. 2. 2023; Nasl. z nasl. zaslona; str. 1-14 Vol. 10 iss. 12 Jun. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2023-02-02 544.5/.6 2196-0216 10.1002/celc.202201130 140669699 RAZ_Bozzini_Benedetto_2023.pdf RAZ_Bozzini_Benedetto_2023.pdf 1 290CC7DDA5B2994DD4CA4B58A0D6FFB1 1d263b681cfeeea1e86632c5070e00777d2bc9b726e330b517a0641226f96622 2bed351e-1bb5-11ee-8cc8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=22641 https://doi.org/10.1002/celc.202201130 0 7d7be4a7-1bb6-11ee-8cc8-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=22642 Zavod za gradbeništvo Slovenije 0 0 0