Preparation of leady oxide for lead–acid battery by …
Leady oxide oxidized at 400°C for 1 h and pulverized by ball milling for 1 h after preparation of sponge lead in 1.0 wt.% HCl solution is shown in Fig. 2.In general, Barton-pot leady oxide has a spherical shape and ball-mill oxide has a non-uniform platelike shape.
