SEPARATOR FOR STORAGE BATTERY

• Main Authors: MUTOU JIYUNSUKE, KITABAYASHI MASANOBU
• Format: Patent
• Language: English
• Published: 21.04.1984
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PURPOSE:To improve liquid sucking and holding properties by carrying out wet-type paper making process by using alkali-containing silicate glass fibers with an average diameter of 0.3-1.0mu and bonding them together without adhesive and then forming a mat-type separator. CONSTITUTION:Alkali-containing silicate glass fibers with an average diameter of 0.3-1.0mu are dispersed in the water whose pH value is kept in 2-3 and are subjected to wet-type paper making process and then a water glass layer that forms a bonding layer is generated on the surface of the glass fiber. Subsequently, the glass fibers are bonded together with water glass layer by heating the water glass layer and a mat-type separator for a storage battery with a density of 0.13 to 0.16g/cm is formed. As a result, the density of the separator can be reduced and space ratio can be increased. Simultaneously, liquid sucking and holding properties can be increased by removing the materials other than the glass fiber and the internal resistance of the sotrage battery can be reduced.