Application of Lead Dioxide Electrode by the Pressed-Process in a Sealed Lead-Acid Battery

Abstract

With the view to reduce electrode production process, it has been studied to produce a positive electrode by using pressed process in a sealed lead-acid cel1. The starting active materials for positive electrodes were prepared from lead dioxide. The utilization of pressed process electrode was about 75% for the current pasted process. It was caused by the low conductivity of a pressed active material and the pore distribution uniformity in a pressed active material. By adding lead sulfate to lead dioxide at the beginning of the process, the utilization of active material was improved. The positive electrode produced by the pressed process can be charged and discharged and it has the same cycle life as the current process. There is possibility of our developing the pressed process for a new electrode production process.