Open AccessSquare Wave Anodic Stripping Voltammetry for Localized Detection of Mn2+ in Li-Ion Battery Environments
Author(s) -
Mojgan Hatami,
David Polcari,
Sazzad Hossain,
Mohammadreza Zamanzad Ghavidel,
Janine Mauzeroll,
Steen B. Schougaard
Publication year - 2022
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/1945-7111/ac63f9
Subject(s) - anodic stripping voltammetry , cyclic voltammetry , voltammetry , linear sweep voltammetry , analytical chemistry (journal) , electrochemistry , stripping (fiber) , detection limit , chemistry , supporting electrolyte , aqueous solution , electrolyte , inorganic chemistry , materials science , electrode , chromatography , composite material
Li-ion batteries that incorporate manganese present several advantages, including low cost and low toxicity. However, these batteries often suffer from dissolution of manganese into the electrolyte solution, severely impeding battery performance. This work describes the quantitative detection of Mn 2+ ions in battery relevant environment i.e. non-aqueous electrolyte within an inert atmosphere. To this end, an electrochemical probe was fabricated using electrochemical deposition of a Hg cap onto a 25 μ m Pt disk microelectrode. The Pt/Hg microelectrode was fully characterized by optical microscopy, cyclic voltammetry, scanning electrochemical microscopy. Using square wave anodic stripping voltammetry to overcome reproducibility issues with classical linear sweep anodic stripping voltammetry, Mn 2+ was quantified in non-aqueous solution with a limit of detection of 14 μ M. Finally, using this detection scheme, the trapping ability of aza-15-crown-5 ether and dilithium iminodiacetate was investigated.