| 摘要 |
PURPOSE:To obtain a thin electrodes and to prevent the reduction of the filling density of a hydrogen absorbing alloy effectively by combining powder of a hydrogen absorbing alloy and a conductive holder body with an alkaliproof high polymer to make into a plate form body, and press-it with rolls. CONSTITUTION:Component elements are solved in an argon ambiance to make MnNi3.55, Co0.75, Al0.4, Mn0.2 in the chemical formula, and this cast is crushed roughly and filtered to obtain rough powder with the particle diameter lass than 1mum. And this hydrogen absorbing alloy powder and a synthetic latex which consists of acryl- styrene copolymer to be a conductive assist agent and a binder are added to the water to produce a paste-form mixture. The paste-form mixture is dried to form a plate-form body (a). And a nickel plating which is softer than the hydrogen absorbing alloy powder is applied to one of two iron rolls, and a hard type chromium plating which is harder than the hydrogen absorbing alloy powder is applied to the other iron roll. And the plate-form body (a) is provided between the two rolls to manufacture a metal hydride electrode. In such a way, even the holding amount of the hydrogen absorbing alloy is little, the contraction of the plate-form body can be carried out effectively, and the filling density of the hydrogen absorbing alloy in the electrode is never reduced remarkably. |
