MANUFACTURE OF POSITIVE ELECTRODE MIX FOR BATTERY AND POSITIVE ELECTRODE PLATE FOR BATTERY USING POSITIVE ELECTRODE MIX

摘要

PROBLEM TO BE SOLVED: To enhance battery performance by uniformly dispersing and kneading a positive electrode mix. SOLUTION: A tactifier is added to Wa (Kg) of active substance having a specific surface of Sa (m2/Kg) and Wd (Kg) of a conductive agent having a specific surface of Sd (m2/Kg), and is kneaded by agitating blades 2 inside a tank 4 in a kneader. In this case, the tactifier is dividingly added not more than seven times in such a manner that its sum ΣVN (m3) satisfies the expression: 3×10-3×(Sa.Wa+Sd.Wd)<ΣVN<1.7×10-7×(Sa.Wa+Sd.Wd). After kneading, a predetermined quantity of the tactifier is added and kneaded, and thereafter, a binder is added and kneaded.