(Invited) Impedance Analysis Using Equivalent Circuits with Transmission Line Model for Reaction Distribution in Polymer Electrolyte Fuel Cell and Li-Ion Battery

2016 ◽  
Keyword(s):  
Fuel Cell ◽  
Transmission Line ◽  
Polymer Electrolyte ◽  
Impedance Analysis ◽  
Polymer Electrolyte Fuel Cell ◽  
Equivalent Circuits ◽  
Li Ion Battery ◽  
Transmission Line Model ◽  
Line Model ◽  
Li Ion

scholarly journals Heterogeneity in MacMullin Number of Li-ion Battery Electrodes Studied by Means of an Aperture Probe

2021 ◽  
Author(s):  
Baichuan Liu ◽  
Kayci Prugue ◽  
Mojdeh Nikpour ◽  
Kristopher Ward ◽  
Brian A Mazzeo ◽  
...  
Keyword(s):  
Transmission Line ◽  
Measurement Methods ◽  
Cell Performance ◽  
Length Scale ◽  
Li Ion Battery ◽  
Transmission Line Model ◽  
Line Model ◽  
Contour Maps ◽  
Number Variation ◽  
Li Ion

Abstract Heterogeneity of MacMullin number within battery electrodes is a key metric affecting cell performance. To characterize this heterogeneity, an aperture probe was developed. This probe, coupled with a newly developed transmission-line model, allows for measurements of tortuosity, represented by the MacMullin number, on millimeter length scales. Local MacMullin number values of seven electrodes were measured, and the ionic resistance profiles of these electrodes are given through contour maps of the MacMullin number. The method is validated by comparing the average MacMullin number to the value obtained through other measurement methods. The results show significant local MacMullin number variation in such electrodes on a millimeter length scale. This method will allow battery manufacturers and researchers to better quantify sources of heterogeneity and improve electrode quality.

Impedance analysis on electric double layer capacitor with transmission line model

2007 ◽  
Vol 164 (1) ◽  
pp. 415-424 ◽  
Author(s):  
Masayuki Itagaki ◽  
Satoshi Suzuki ◽  
Isao Shitanda ◽  
Kunihiro Watanabe ◽  
Hiroshi Nakazawa
Keyword(s):  
Transmission Line ◽  
Double Layer ◽  
Electric Double Layer ◽  
Impedance Analysis ◽  
Electric Double Layer Capacitor ◽  
Transmission Line Model ◽  
Line Model ◽  
Double Layer Capacitor
Sign in / Sign up

Export Citation Format

Share Document