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Method for Enhancing Chemical Efficiency of Bipolar Plate of Lead Acid Battery
Method for Enhancing Chemical Efficiency of Bipolar Plate of Lead Acid Battery
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机译:提高铅酸蓄电池双极板化学效率的方法
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摘要
The formation efficiency of pasted positive plates of a lead- acid battery is greatly enhanced by providing in situ a layer of lead dioxide (PbO.sub.2) on the pasted plate surfaces prior to formation. The PbO.sub. 2 layer is preferably formed by treating the surfaces of the plates with an ozone-enriched gas to convert a portion of the poorly conductive positive active precursor material (nPbO.PbSO.sub.4) to electrically conductive PbO.sub.2. In subsequent electrochemical formation of the plates, the total formation charge can be reduced significantly while obtaining more complete conversion of the paste to positive active material. The method also provides an effective substitute for conventional curing of pasted positive plates.
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