Development of elemental technologies for thin sealed lead-acid battery

The authors report on the outline of the elemental technology which has enabled the improved reliability and performance of thin sealed lead-acid batteries. The results of its evaluation for reliability are given. The problems which were found to exist in some components of the battery, and what has been done to overcome those problems are outlined. The salient feature of the thin sealed lead-acid battery is the use of a film packaged for each cell. The battery calls for careful consideration in the design of its components and the selection of the materials to attain the maximum possible reduction in thickness. A comparison is made between a thin sealed lead-acid battery and a conventional small sealed lead-acid battery. The thin sealed lead-acid battery used as the source of a 96 V power supply is about 30% smaller in weight and volume than the conventional battery used for the same purpose