Storage battery and method of making same

摘要

823,195. Batteries. GENERAL MOTORS CORPORATION. Jan. 2, 1958 [Jan. 18, 1957], No. 161/58. Class 53. A dry charged lead acid accumulator is provided with paper or plastic separators which incorporate a wetting agent, for example trimethyl nonyl ether of polyethylene glycol. The separators are treated with the wetting agent after the acid has been removed from the charged battery. A wetting agent may also be incorporated in the battery when the cell is first assembled and charged by being introduced into the acid or into the resin used for impregnating the separators. After charging, the acid is removed and the battery washed out with water. A wetting agent is then introduced and the plates and separators dried in a non-oxidizing atmosphere. When the separators consist of paper they may be impregnated with a phenolic, melamine formaldehyde, or other resin.