Polymer manufacturing, common problems during

As important as batteries are to modern civilization, a number of inherent problems are associated with them. For example, the lead-storage battery present in all modern motor vehicles is very heavy (it contains one of the densest of common metals, lead) and it must be continually recharged, eventually wears out, and presents serious environmental problems during its manufacture and disposal. After the discovery of conductive polymers, many scientists hoped and dreamed that these materials could he used to make efficient, lightweight plastic batteries. 

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