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

This paper uses a computer model to predict the performance of positive electrodes containing hollow, glass microspheres. The model's performance prediction for these plates is then compared with experimental data. The model helps to make clearer the effect the glass microspheres have on plate performance. At medium to high specific rates, the positive 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 conductivity of the plates with the microspheres, as characterized by the critical volume fraction, is lower,