A new electroanalytical design based on asymmetric interdigitated arrays (IDA) is presented and the effects of asymmetry on the device performance are characterized electrochemically. Varying the collector and generator band widths independently of each other tunes the collection efficiency and redox cycling-induced feedback. These arrays are able to provide low feedback (<10%) while maintaining moderate collection efficiency (25%-40%). Behavior is evaluated experimentally and using a numerical model. The application of the device to detect soluble electrolyte degradation products in nonaqueous lithium-ion and sodium-ion battery electrolytes is demonstrated.
Asymmetric Interdigitated Electrodes for Amperometric Detection of Soluble Products
Creators
Sophia E. Lee - Drexel University
Maureen H. Tang - Drexel University
Publication Details
Journal of the Electrochemical Society, v 168(5), p57519
Publisher
Electrochemical Soc Inc
Number of pages
10
Grant note
NSF-GRFP; National Science Foundation (NSF); NSF - Office of the Director (OD)
NNCI-2025608 / NSF National Nanotechnology Coordinated Infrastructure Program
DMR-1607991; CBET-1751553 / National Science Foundation; National Science Foundation (NSF)
Resource Type
Journal article
Language
English
Academic Unit
Chemical and Biological Engineering
Web of Science ID
WOS:000656923100001
Scopus ID
2-s2.0-85107500020
Other Identifier
991019168587504721
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