How to charge a lead battery

Abstract

Abstract PURPOSE:To eliminate troublesome electrolyte replacement which is conducted after removing electrolyte by reversing a battery by pouring sulfuric acid having low specific gravity in an uncharged battery, laterally turning the battery, and supplementing sulfuric acid having high specific gravity after completion of charge. CONSTITUTION:0, 0.1, 0.3, 0.5, 1 and 2% each Na2SO4 is added to regular lead powder and each mixture is kneaded with water and sulfuric acid to prepare six kinds of positive paste. Each paste is filled in a grid for car battery and each positive plate is formed after aging. The positive plate is combined with a regular negative plate and a separator with glass mat to form a plate group 3 and a battery having a rated capacity of 48Ah is assembled. Sulfuric acid 4 having a specific gravity of 1.10 is poured in the battery and the battery is allowed to stand for 24 hours, then laterally turned. In the battery, an electrolyte pouring hole 2 is installed in the slightly upper part from the center of a container 1, and the amount of poured sulfuric acid is about 60% of a specified amount. 200% quantity of electricity of positive theoretical capacity is charged during about 40 hours, and after completion of charge, sulfuric acid having high specific gravity is supplemented. Thereby, troublesome electrolyte replacement which is conducted after removing electrolyte by reversing the battery is unnecessary.

Inventors

• 👤 Akio Tokunaga
• 👤 徳永　昭夫
• 👤 Masahiko Onari
• 👤 小斉　雅彦

Bibliographic Details