The Effect of Various Graphite Additives on Positive Active Mass Utilization of the Lead-Acid Battery

Abstract

Various graphite additives were incorporated into the positive paste in a range of amounts to study and compare their effects on the positive active mass utilization of lead-acid batteries. Four types of graphite - two anisotropic, one globular, and one fibrous - were investigated by SEM, XRD, and Raman spectroscopy. Their physico-chemical properties were correlated to the electrochemical performances of 2 V test batteries under a wide range of conditions. This works presents the influence of graphite additives' structural order, phase composition, particle size, morphology, and surface area on the formation, initial cycling, and electrochemical utilization of the positive plate. The effects of various graphite on electrochemical performance were investigated using SEM, mercury porosimetry, and TGA/DSC to correlate the function of graphite on the positive active mass utilization of the lead-acid battery.

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

0013-4651; 1945-7111

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 Electrochemical Society, All rights reserved.

Publication Date

01 Mar 2021

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