BATTERY JAR FOR LEAD ACID BATTERY AND METHOD OF MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a battery jar for a lead acid battery with small deformation of the partition walls. SOLUTION: Inside of outer walls 2 of the battery jar 4 is divided by plural partition walls 3, and talc is included by 0.1-10 mass % in polypropylene forming the battery jar 4. The characteristics of the method of manufacturing the battery jar are that a first polypropylene pellet without tale and a second polypropylene pellet including talc by at least 10 mass % are used and that after mixing the pellets, the mixed pellets are melted and injection-molded.