Power Technology Inc. has developed two types of proprietary reticulated, high specific surface area (< 1000 m/sup 2/ m/sup -3/) current collectors for lead-acid batteries manufactured by casting and plating, respectively. The comparative performance of the reticulated and standard grid-type current collectors was studied by single-cell battery testing and scanning electron microscopy (SEM). The electrochemical utilization efficiency of the positive active mass (PAM) in flooded cells equipped with 25 - 30 pores per inch (ppi) reticulated collectors was up to 55% higher than for a grid battery at 3 h discharge rate. These results were attributed to differences in PAM morphology induced by the current collector design, as shown by SEM micrographs. The reticulated battery with Pb-Sn alloy current collectors subjected to daily cycling composed of continuous 19 h float charge at 2.35 V/cell followed by a 5 hour discharge, exhibited a capacity loss of less than 10% in 30 days.
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机译:Power Technology Inc.分别为通过铸造和电镀制造的铅酸电池开发了两种类型的专有网状高比表面积(<1000 m / sup 2 / sup -3 /)电流收集器。通过单电池电池测试和扫描电子显微镜(SEM)研究了网状和标准网格型集电器的比较性能。配备25 - 30孔(PPI)网状电池(PPI)网状电池(PPI)网状电池的阳性活性物质(PAM)的电化学利用效率高于3小时排放率的电网电池的55%。这些结果归因于集电器设计引起的PAM形态的差异,如SEM显微照片所示。具有PB-SN合金电流收集器的网状电池经过每日循环,由连续19小时浮电荷组成,然后在2.35 v /细胞下排出5小时,在30天内表现出低于10%的容量损失。
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