SIMULATION OF RECOMBINANT LEAD-ACID-BATTERIES

Modeling of recombinant lead-acid batteries is extended to improve the description of oxygen generation and recombination and to introduce L imited rates of transport of Pb2+ ions on charge as well as hydrogen g eneration and recombination. A simple, lumped-parameter model is deeme d to be adequate to treat system behavior at low rates of charge. The oxygen recombination can be treated as either chemical or electrochemi cal, and this issue should not be considered to be completely resolved . Model results are compared with experimental results from the litera ture for cell potential and pressure for several charging rates and ex tended to the case where the rate is increased or decreased after the battery has been fully charged.