battery paste and method for producing the same, battery plate and method for producing the same, battery plate assembly and electrochemically cell.

摘要

A battery paste is disclosed. One such paste consists essentially of at least one lead oxide (i.e., an uncalcined oxide of lead) and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 0.02 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers having an average diameter not greater than 15 micron. Another paste consists essentially of at least one lead oxide and at least one lead oxide sulfate, sufficient water to moisten the paste, and from 1 percent to 15 percent based on the weight of the lead oxide plus the weight of the lead oxide sulfate, calculated as the lead oxide, of glass fibers of a specific composition that enables specific beneficial ions to diffuse into the paste during the life of the battery.A method for producing such a battery paste and a delivery system for adding the additives that are added into the paste is also disclosed. The method comprises charging a part of the water and a part of the special composition glass fibers desired in the paste to a mechanical mixer, mixing the water and fibers, adding the lead oxide or oxides desired in the paste to the mixer, mixing the water, glass fibers and lead oxide or oxides until essentially all of the free water in the mixer has been mixed with the lead oxide or oxides, adding the rest of the water required to moisten the paste to the desired consistency and the sulfuric acid required to form the lead oxide sulfate or sulfates, and mixing the paste.The delivery system is the charging to a paste batch of a glass fiber mat that has been impregnated with the other required additives in such a proportion that a certain size/weight of the mat provides all the additional ingredients.