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Pure tribasic lead sulfate hydrate was prepared by two different methods and characterized by X-ray diffraction and scanning electron microscopy. One of these methods consisted of grinding the starting materials while the other involved the precipitation of the tribasic lead sulfate hydrate from a lead acetate solution in a buffered ammonia solution. The phases so prepared led to the same X-ray diagram...
It has become popular and widespread, both in symposia and battery magazine articles, to refer to valve-regulated lead/acid (VRLA) batteries as if they are a single entity and generic in nature. Sweeping conclusions have been drawn about the reliability and life of VRLA batteries but, usually, little is published alongside of these conclusions that can give the reader much insight into the nature...
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