| 摘要 |
PURPOSE:To improve the bromine barrier property of a film as well as lower the electric resistance of the film by using polyethylene-line fibers as a material so as to disperse glass fibers into a paper shaped micro-porous film. CONSTITUTION:Polyethylene fibers are used as a material to disperse glass fibers so as to make a paper-shaped micro-porous film. The glass fibers lowers, by its adding, the electric resistance of the film and fill the space between polyethylene fibers being the material, forming proper micro-pores, whereby it functions favorably also in point of elevating bromine barrier property. For glass fiber, if addition amount is equal, the smaller the diameter is, the more elaborate the film becomes, end the bromine barrier property further improves. Hereby, a separator for metal halide battery which is low in electric resistance and excellent in bromine barrier property can be obtained. |
