A layered-carbon/PbSO4 composite as a new additive for negative active material of lead-acid batteries

We present a layered-carbon/PbSO4 composite additive for the negative active material (NAM) of lead-acid batteries to improve their high rate charge/discharge performance. The layered-carbon/PbSO4 composite, consisting of graphene-like two-dimensional carbon decorated with fine PbSO4 particles, is prepared by a simple chemical vapor deposition (CVD) method and a subsequent ion exchange process. In the synthesis process, potassium carbonate...