| 摘要 |
PURPOSE:To fabricate a battery electrode which provides excellent battery performance easily by coating bases with slurry consisting of a powder of carbonaceous material and an aqueous dispersion body of non-fluoric type organic polymeride, and subjecting it to drying process. CONSTITUTION:Bases 1, 2 are coated with slurry consisting of a powder of carbonaceous material and an aqueous dispersion body of non-fluoric type organic polymeride, followed by drying process. The aquous dispersion body of non-fluoric type organic polymeride is formed, for ex., from low density polyethylene, high density polyethylene, ethylene/acrylic acid (salt) copolymer, acryl type polymeride, vinyl type polymeride, or stylene/buthadiene rubber, having a particle size of 10mu or less, or preferably less than 5mu, or further favorably including particles of 0.5mu or smaller, and this is dispersed in a dispersion medium of aqueous type. The mean particle size of the carbonaceous material is 0,1-50mu, preferably 3-25mu, or further favorably ranging 5-15mu, which is imposed from problems with drop of the current efficiency, degradation of the stability of slurry, and increase of the inter-granular resistance in the coating film over the electrode obtained. |
