| 摘要 |
PURPOSE:To secure such an electrode that is very high in capacity, by regulating a grid diameter and a means space diameter of a spongy Ni porous body, and the form and grain size of Ni(OH2) powder or a main active material. CONSTITUTION:Mean grain size of spherical powder of Ni(OH)2 is set to a range of 5-25mu, while mean space diameter of a spongy Ni porous body before this powder is filled up is set to be 10-50 times over the mean grain size of the Ni(OH)2, and a grid diameter is selected to a range of 30-70mu. Paste consisting of the Ni(OH)2 as a main body is filled in this porous body, producing an Ni electrode after being compressed by pressure. This method is more simplified than the conventional sintered type Ni electrode, and on top of very high in capacity, a discharge rate characteristic and a cycle life characteristic are also almost equal to that electrode. |
