ENCLOSED LEAD STORAGE BATTERY

• Main Authors: KOIKE KIICHI, SUZUKI YOSHIE, SUGIMOTO MANSAKU, MATSUO KOJIRO, YOSHINAKA MINORU
• Format: Patent
• Language: English
• Published: 22.09.1987
• Edition: 4
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE:To simply secure such a thin battery jar material plate that is high in reliability and make a battery into thinness in type as well as to improve the extent of volumetric efficiency, by installing a polyolefin synthetic resin layer in an inner surface contacting with a plate group of metal plates by means of thermal spraying. CONSTITUTION:The circumference of a plate group 6 consisting of a positive plate 2, a negative plate 3 and a separator 4 is surrounded with a plastic frame body 1, and both upper and lower openings are hermetically sealed by battery jar metal plates 7 and 7'. Powder of polyethylene and polypropylene is thermally sprayed to these plates 7 and 7', forming a film an aluminum plate contacting with the group 6 and an inner surface of stainless steel and giving acid resistance and thermal depositiability to them, and these plates 7 and 7' are heat- deposited to an end face of the frame body 1, closing the opening. In addition, a safety valve 8 to be opened when battery internal pressure goes up to more than the specified one is installed in a part of the frame body 1. With this constitution a battery jar using these metal plates is simply thinned, whereby reliability is heightened and the battery is easily thinned, while volumetric efficiency is improvable.