BATTERY SEPARATOR

PURPOSE:To reinforce a separator by combing a paper raw material slurry containing a specific quantity of colloidal silica to total weight of glass and glass fiber having a mean fiber diameter of a specific value or lower. CONSTITUTION:A paper raw material slurry, containing 1-10wt.% of colloidal si...

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Bibliographic Details
Main Authors MUTOU JIYUNSUKE, SUGIYAMA MASASHI, KITAWAKI HIROKI
Format Patent
LanguageEnglish
Published 08.08.1991
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PURPOSE:To reinforce a separator by combing a paper raw material slurry containing a specific quantity of colloidal silica to total weight of glass and glass fiber having a mean fiber diameter of a specific value or lower. CONSTITUTION:A paper raw material slurry, containing 1-10wt.% of colloidal silica to the total weight of glass and glass fiber having a mean fiber diameter of 2mum or below, is combed to be a separator. The large fiber diameter of glass fiber causes the maximum fire diameter of the separator to be large, and liquid retention force due to a capillary phenomenon to be lowered to obtain the insufficient layer-forming prevention effect. Moreover a smaller adding quantity of colloidal silica than the range causes sufficient effect to be unobtainable, and too much adding quantity causes too hardness allowing the detraction of a cushioning property. Consequently the separator is strengthened with constitution in the range.
Bibliography:Application Number: JP19890321052