SQUARE ALKALINE STORAGE BATTERY, AND UNIT BATTERY AND ASSEMBLED BATTERY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a square alkaline storage battery that can optimize the balance between heat generation volume, heat radiation volume and heat storage volume, and has high output and excellent battery characteristics even in the repetition of charge and discharge and in a long-term use. SOLUTION: Rectangular positive plates 1 and negative plates 2 are laminated alternately through also rectangular separators 3, and electrode groups are constructed. These electrode groups are housed in a square casing together with alkaline electrolyte. Inside resistance is set at 5 mΩor less, thickness of the electrode groups at 30 mm or less, and the volume of the electrolytic solution is at 1.3 to 8.0 g/Ah, respectively.