Work

Use of Three-Terminal Impedance Spectroscopy to Characterize Sodium-Ion Batteries at Various Stages of Cycle Life

Year: 2024

Type: article

Abstract: The use of 3-terminal measurements to separate different impedance components of a prototype sodium-ion battery is outlined. By addition of a sodium metal reference electrode, the two electrode-electrolyte interfaces can be measured separately and changes monitored at various stages of battery cycle life. The impedance of a freshly-constructed cell is dominated by the blocking capacitance of the anode-electrolyte interface and the charge-transfer resistance at the cathode-electrolyte interface. The variation of these components during charge and discharge cycling provide a method to monitor evolution of cell performance.

Source: Journal of The Electrochemical Society

DOI: 10.1149/1945-7111/ad1c0f

Authors: Laurence A. Middlemiss, Anthony J. R. Rennie, Ruth Sayers, Anthony R. West

Institutions: University of Sheffield, Faradion (United Kingdom)

Language: English

Topic: Battery Modeling and Management

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $1,855