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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
