LEAD-ACID BATTERY

摘要

PROBLEM TO BE SOLVED: To lengthen the life of a lead-acid battery by retarding the stratification of an electrolyte in the battery adopting expanded grid electrode plates, and enhance high rate discharge characteristics in the initial stage in use. SOLUTION: An electrode group is constituted by alternately stacking expanded grid positive electrode plates 2 each housed in a synthetic resin (polyethylene) bag-shaped separator 1 and expanded grid negative electrode plates 4 whose surface is attached with a glass fiber mat 3.