Influence of Minor Elements in Waste Lead Battery Recycling
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Fig. 2 Lead battery
structure
Lead alloy electrode grid, other lead alloy parts, and lead dioxide paste can be
evaluated as the source for the lead recycle. But dilute sulfuric acid and plastic resin
case should be removed carefully to enhance the value of the lead material parts.
Figure 3 shows the waste lead battery disassembling line in Toho Zinc. As a
method of separating the waste lead battery, the top parts of the lead battery are cut
and separated from the battery body firstly. Then, the top parts with the strap lead
alloy are removed, crushed, water-washed, and separated from the plastic resin lid.
The lead alloy of the top parts is crushed, and strap parts can be used as the lead
source.
Regarding the body separated from top parts, the liquid dilute sulfuric acid is
separated from other case parts at the reversing step. The sulfuric acid contains some
Fig. 3 Waste lead battery disassembling line