Fast-charging of a lead-acid cell: effect of rest period and depolarization pulse

Cell behavior is numerically investigated for fast charging of a lead-acid cell under constant current or pulsed current. A model used in the simulati on has been developed to predict the cell performance by considering the so lid-state reaction at the negative electrode. By incorporating a rest perio d and a depolarization pulse on high rate charge, it is possible to avoid d eterioration of the cell performance due to an increase in internal resista nce. Thus, fast charging of a lead-acid cell can be achieved without a loss of cycle-life, despite the fact that higher currents are forced into the c ell. (C) 2000 Elsevier Science S.A. All rights reserved.