Secondly, the use of desulfurization lead-acid batteries has a wide range of temperatures, which can not only work normally at lower temperatures, but also maintain stable performance in high temperature environments. This feature enables it to perform well in a variety of climatic conditions.
Can lead paste be recycled from spent lead acid battery under vacuum?
Conclusions A research investigation for recycling lead from lead paste in the spent lead acid battery under vacuum has been developed in this work.
How to recover lead from spent lead-acid batteries?
The treatment of spent lead paste is essential for the recycling of spent lead-acid batteries. In this study, we propose a facile route for the recovery of lead from spent lead paste by pre-desulfurization followed by low-temperature reduction smelting.
Is spent lead acid battery a contaminant?
With the wide application of lead acid battery, spent lead acid battery has become a serious problem to environmental protection and human health. Though spent lead acid battery can be a contaminant if not handled properly, it is also an important resource.
What are the components of spent lead acid battery?
There are four main components in spent lead acid battery: polymeric containers, lead alloy grids, waste acids and pastes. Among them, the pastes mainly comprise lead oxide (∼9%), lead dioxide (∼28%), lead sulfate (∼60%) and a small amount of lead (∼3%) (Zhu et al., 2012a).
A typical lead acid battery cell has two plate types, one of lead and one of lead dioxide, both in contact with the sulfuric acid electrolyte as either a liquid, absorbed in a mat (AGM), or a gel.
What happens when a lead plate reacts with a sulfuric acid?
The lead dioxide (PbO 2) plate reacts with the sulfuric acid (H 2 SO 4) electrolyte resulting in hydrogen ions and oxygen ions (which make water) and lead sulfate (PbSO 4) on the plate. The lead plate reacts with the electrolyte (sulfuric acid) and leaves lead sulfate (PbSO 4), and a free electron.