| 摘要 |
PURPOSE:To maintain electrode plates to the full, increase their porosity, and improve their discharge characteristics and life by coating the pasted active material which uses the fibered and network fluorine resin as settlement agent on grids. CONSTITUTION:For example, elliptical impalpable powder aqueous suspension of fluorine resin of 0.2 to 0.5mu in particle size is added to the mixtures of lead powder and oxidized lead powder and rubbed out into the pasted shape. The fluorine resin weight ratio is 0.01 to 0.02% for lead powder as solid component and its particle size is equal to or below that of lead powder. It is desirable to add a small amount of non-ion interfacial activator. Sulfuric acid is added to the above paste and rubbed out. The fluorine resin particles are fibered, intertwine one after, and change into network. Electrode plates are made up by coating the paste whose entire part has rubber elasticity on grids. As a result, the electrode plates with their strength fully maintained, with increased porosity, and with excellent low temperature high rate discharge chracteristics and life characteristics can be obtained. |
