| 摘要 |
PURPOSE:To improve electrolyte retention, to exhibit excellent hydrophilic performance for a long time, and to prolong the life of a battery by carrying out an oxidation treatment in polyolefine group nonwoven fabric composed by containing micropore polyolefine group fabric. CONSTITUTION:Oxidation treatment is applied to polyolefine group nonwoven fabric containing micropore polyolefine group fabric which is polypropylene micropore fabric or porous structure polyethylene micropore fabric having numerous micropores from the fabric surface to the inside. For the oxidation treatment, a gas phase reaction by oxygen gas is used, and following this reaction, oxygen functional groups are introduced onto the fabric surface of the polyolefine group nonwoven fabric containing the micropore polyolefine group fabric and in the micropores of the micropore polyolefine group fabric, so that hydrophilic property is exhibited. The polyolefine group nonwoven fabric contains 10-70% by weight of the micropore polyolefine group fabric. In this way, extremely excellent electrolyte retention performance is provided in an alkaline battery, while its life can be prolonged. |
