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Sb-Sb
— antimony was often used in the past to strengthen the strength of lead plates, since lead itself is a soft metal. The antimony content in the plates is 5% or more. Today, Sb-Sb batteries are rare. The fact is that the antimony version of the plates has a significant drawback - they speed up the electrolysis process and water begins to quickly boil away from the electrolyte, which entails exposure of the electrodes and their subsequent shedding. Batteries with antimony plates necessarily require maintenance and quickly become unusable if water is not added in time.