| 摘要 |
PURPOSE:To eliminate the unevenness of form and weight in a simple method and to realize a uniform discharge capacity by providing a process to feed a specific amount of positive electrode composite paste to a filling pattern and to dry, and a process to apply a pressure to the dried paste to form in the pattern. CONSTITUTION:To a mixture powder of 90wt.% of manganese dioxide and 1wt.% of graphite, a dispersion liquid of 1wt.% of polyacrylic acid, 2wt.% of polyfluoroethylene, and the water, is mixed and kneaded, to prepare a positive electrode composite paste 1. The paste 1 is fed to a stainless filling pattern 2 by a dispenser 3 at a specific amount, the pattern 2 is vibrated horizontally to make the thickness constant, and it is dried in a drier 4. The dired paste 5 is pressurized and formed by a press 6, and removed from the pattern 2 to obtain a positive electrode formation 7. The formation 7 is made into a positive electrode body 11, and assembled together with a positive electrode terminal plate 15 made of a stainless steel, a negative electrode terminal 16 to which a metal lithium 13 is attached, and a separator 12, by an insulating sealing plate 14, and a flat cell is made up. |
