Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | A243-A253 |
Fachzeitschrift | Journal of the Electrochemical Society |
Jahrgang | 2010 |
Ausgabenummer | 157 |
Publikationsstatus | Veröffentlicht - 2010 |
Extern publiziert | Ja |
Abstract
In this theoretical work, a mathematical model of the positive active mass of a lead/acid battery considering the effect of proton incorporation into the solid material of the lead dioxide electrode is presented. It can be regarded as an extension of a classic isothermal description, well known from literature. The influence of the proton incorporation reaction on the transient behavior as well as on the steady-state profiles has been analyzed and compared to the classical model. A significant influence of the process of proton incorporation on the transients of the model quantities was found, which reflects a pseudocapacitive behavior of the positive active material. This effect stabilizes the positive electrode potential, especially at a short-time high rate current flow. It could be shown that the transport of protons through the active mass is also present in steady-state conditions. This allows the protons two alternative ways of transportation, liquid and solid phases, in both transient and steady-state situations. Proton transport in the solid phase has not been considered before and may explain the high pseudocapacity of lead dioxide positive active material.
Schlagwörter
- Lead acid batteries, Active material, Classical model, Current flows, High rate, Mathematical models, Electric batteries, Electrodes, Model simulation
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Energie (insg.)
- Erneuerbare Energien, Nachhaltigkeit und Umwelt
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
- Chemie (insg.)
- Elektrochemie
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
Ziele für nachhaltige Entwicklung
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in: Journal of the Electrochemical Society, Jahrgang 2010, Nr. 157, 2010, S. A243-A253.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Model simulation and analysis of proton incorporation into the positive active mass of a lead/acid battery
AU - Bensmann, Boris
AU - Hanke-Rauschenbach, Richard
AU - Meißner, Eberhard
AU - Koch, Ingo
AU - Sundmacher, Kai
N1 - Copyright: Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - In this theoretical work, a mathematical model of the positive active mass of a lead/acid battery considering the effect of proton incorporation into the solid material of the lead dioxide electrode is presented. It can be regarded as an extension of a classic isothermal description, well known from literature. The influence of the proton incorporation reaction on the transient behavior as well as on the steady-state profiles has been analyzed and compared to the classical model. A significant influence of the process of proton incorporation on the transients of the model quantities was found, which reflects a pseudocapacitive behavior of the positive active material. This effect stabilizes the positive electrode potential, especially at a short-time high rate current flow. It could be shown that the transport of protons through the active mass is also present in steady-state conditions. This allows the protons two alternative ways of transportation, liquid and solid phases, in both transient and steady-state situations. Proton transport in the solid phase has not been considered before and may explain the high pseudocapacity of lead dioxide positive active material.
AB - In this theoretical work, a mathematical model of the positive active mass of a lead/acid battery considering the effect of proton incorporation into the solid material of the lead dioxide electrode is presented. It can be regarded as an extension of a classic isothermal description, well known from literature. The influence of the proton incorporation reaction on the transient behavior as well as on the steady-state profiles has been analyzed and compared to the classical model. A significant influence of the process of proton incorporation on the transients of the model quantities was found, which reflects a pseudocapacitive behavior of the positive active material. This effect stabilizes the positive electrode potential, especially at a short-time high rate current flow. It could be shown that the transport of protons through the active mass is also present in steady-state conditions. This allows the protons two alternative ways of transportation, liquid and solid phases, in both transient and steady-state situations. Proton transport in the solid phase has not been considered before and may explain the high pseudocapacity of lead dioxide positive active material.
KW - Lead acid batteries
KW - Active material
KW - Classical model
KW - Current flows
KW - High rate
KW - Mathematical models
KW - Electric batteries
KW - Electrodes
KW - Model simulation
UR - http://www.scopus.com/inward/record.url?scp=76349126212&partnerID=8YFLogxK
U2 - 10.1149/1.3272535
DO - 10.1149/1.3272535
M3 - Article
AN - SCOPUS:76349126212
VL - 2010
SP - A243-A253
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 157
ER -