Evaluation of Positive Electrode Resistance by "Current-Rest-Method" Using "Four-Electrode Cell" (Co-, Ni- and Mn-Based CathodeMaterials)

In this study, we investigated the results based on the "C.R.M. ("Current-Rest-Method") resistance" of positive electrodes (Co-, Ni- and Mn-based cathode materials), which was directly related to the input-output power characteristics, using the "four-electrode cell" (1...

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Bibliographic Details
Main Authors: Yata, Shizukuni, Satake, Hisashi, Endo, Tomoki, Kuriyama, Mayumi, Kinoshita, Hajime
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:In this study, we investigated the results based on the "C.R.M. ("Current-Rest-Method") resistance" of positive electrodes (Co-, Ni- and Mn-based cathode materials), which was directly related to the input-output power characteristics, using the "four-electrode cell" (1, 2, 4). By comparing the resistance of these positive electrodes, we found that the Ni-based electrode had the lowest C.R.M. resistance in the range of 4.0 V - 3.5 V and the Mn-based electrode had a stationary C.R.M. resistance over a wide range of both the charge and discharge states. In addition, the calculated curves of the Mn-based electrode revealed the excellent output power characteristics at each SOC by using the time dependence of the "C.R.M. resistance".
ISSN:1938-5862
1938-6737
DOI:10.1149/1.3564868