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Elucidation of the principal mechanism that underlies premature capacity loss (PCL) in lead/acid positive plates has always been hampered by the notion that different forms of PCL are responsible for severe and mild instances of capacity loss. Recently, though, studies focused on the conductivity of the porous mass have provided a clear, universal explanation for all examples of PCL. The evidence...
Low positive mass utilization poses a major problem for lead/acid batteries, particularly at high discharge rates, and is one of the major factors that limits the specific energy of the battery. The reasons for the incomplete discharge at high rates are generally ascribed to a combination of various polarization phenomena including: (i) poor acid transport from the bulk of the solution into the interior...
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