| 摘要 |
PURPOSE:To prevent tearing off of a hydrogen occlusion alloy and improve the cycle life, by containing in, or placing over the surface of, the negative electrode a hydrogen occlusion alloy or hydride, covered with a conductive metal. CONSTITUTION:The negative electrode 1 is formed pressing a mixture of a powder of hydrogen occlusion alloy with an electrochemical property to occlude and discharge hydrogen and a powder of hydrogen occlusion alloy covered with copper, nickel or the like onto an electrode base, or placing a hydrogen occlusion alloy or the like covered with copper or the like over the surface of an electrode base which is placed with only a hydrogen occlusion alloy or the like. The nickel-hydrogen alkaline storage battery is formed combining the said negative electrode 1, a positive electrode 2 made of nickel oxide, a separator 3, and an alkaline electrolyte 4. Therefore, as well as increasing the discharge capacity per unit weight or unit volume of the electrode, the mechanical strength of the electrode is improved, and the charge and discharge life can be made longer. |
