In 1951, German archaeologists found tools from the Parthian period (250 BCE to 224 CE) near Ctesiphon. After examination, it was found that these tools are electric cells that were made and used by Iranians. He published this found in an article, describing the device as an ancient battery used for plating and transfer a …
Abstract : This work deals with effective parameters in the cast-on-strap (COS) process during which gridlugs of a lead-acid battery are joined together by a strap. The effects of lug preheating, melt pool temperature, and lug entrance delay on the quality of joints and casting defects were investigated. Lug preheating was found to propitiously reduce joint …
The Role of Lug Preheating, Melt Pool Temperature Read More »
Abstract : With increasing the applications of lead-acid batteries, the demand for efficient, low resistant and inexpensive batteries has increased drastically. As discharge rates increase, ohmic voltage losses in current collecting system become more important. In this study, numerical methods are employed to investigate the effect of grid configuration, lug position, diagonal wire angles and …
Optimization of grid configuration by investigating its effect on positive Read More »
Abstract : During the last decades, huge efforts have been made to enhance the efficiency as well as performanceof lead–acid batteries. The configuration of grid wires plays an important role in minimizing the ohmicdrop and hence, improving its current collecting ability. In the current study, numerical methods havebeen employed to investigate the effects of grid …
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