| 摘要 |
PURPOSE:To prevent short circuit caused by projecting parts of current collectors by using a negative electrode obtained by pressing wirelike current collectors in a winding direction of electrodes against a sheet-like mold containing a hydrogen storage alloy to form a metal oxide-hydrogen storage battery. CONSTITUTION:A negative electrode 21 is formed by pressing wire-like current collectors 12 such as nickel wires against a sheet-like molding 11 obtained by heat-pressing a mixture of hydrogen storage alloy powder and a binder. The negative electrode 21 is combined with a positive electrode 22 comprising metal oxide such as sintered nickel electrode and a separator 23, and they are spirally wound, then accommodated in a battery case 24 to form a metal oxide-hydrogen storage battery. Since tension is applied separately to each wirelike current collector 12, floating off of current collectors from the molding 11 is prevented. Therefore, short circuit caused by projecting parts of current collectors generated in cutting is prevented, and reliability is increased. |
