| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lead-acid battery having enhanced life performance and excellent discharge characteristics by suppressing the softening and falling of a positive electrode active material which is caused by repeated charge and discharge, by enhancing the filling ability of active material paste and suppressing the deterioration of a battery discharge capacity which is caused in a conventional manufacturing method, in a manufacturing method of the lead-acid battery in which PTFE is added in the positive electrode active material. <P>SOLUTION: This manufacturing method comprises a water kneading process to knead lead powder having lead oxide powder as a main component by adding water to it, a sulfuric acid kneading process to knead the kneaded paste by adding a sulfuric acid or a diluted sulfuric acid to it, an adding process to add polyphloroethylene, a finishing kneading process to disperse the polyphloroethylene in the kneaded paste, a paste filling process to fill the paste obtained by these processes in a lattice body, and a maturing and drying process to mature and dry the grid body filled with the paste. This positive electrode plate is manufactured by these processes and used in the lead-acid battery. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
