MODELING LEAD-ACID-BATTERIES THAT HAVE POSITIVE ELECTRODES CONTAININGHOLLOW, GLASS MICROSPHERES

This paper uses a computer model to predict the performance of positiv e electrodes containing hollow, glass microspheres. The model's perfor mance prediction for these plates is then compared with experimental d ata. The model helps to make clearer the effect the glass microspheres have on plate performance. At medium to high specific rates, the posi tive plate performance is improved because a higher percentage of the plate's active material reacts with the electrolyte stored within the plate. At low specific rates, the performance is reduced because the c onductivity of the plates with the microspheres, as characterized by t he critical volume fraction, is lower,