What is claimed is:
1. A nickel-metal hydride rechargeable battery comprising;
a positive electrode including nickel hydroxide;
a negative electrode including a hydrogen-absorption alloy; and
a separator interposed between the positive and negative electrodes, wherein
charge and discharge operations are performed in the range of 20-60% of hydrogen-absorption capacity of the hydrogen-absorption alloy.
2. The nickel-metal hydride rechargeable battery according to claim 1, wherein an average particle diameter of the hydrogen-absorption alloy is in the range of 10-25 m.
3. The nickel-metal hydride rechargeable battery according to claim 1,.wherein a quantity of an alkaline electrolyte per negative electrode capacity is in the range of 1.5-3 gAh.
4. The nickel-metal hydride rechargeable battery according to claim 1, wherein a facing area, per negative electrode capacity, between opposing negative and positive electrodes is in the range of 45-65 cm2Ah.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An efficient motor with upper and lower permanent magnets and multiple rotor arm coils comprising in addition to an axle, at least one field magnet surrounding at least in part the rotor in its plane of rotation, commutator bars, brushes, and an armature:
a) a top permanent magnet held in place above a rotor, and a bottom permanent magnet held in place below the rotor, the rotor being rotatable on an axle aligned with a central axis of the top permanent magnet and of the bottom permanent magnet, by which sections of the rotor are in turn magnetized with a polarity matching the top-to-bottom aligned polarity of the top and bottom permanent magnets;
b) individual inductive wire coils wound around a portion of a plurality of rotor arms radiating from a rotor axle, the portion being adjacent to an end of each respective rotor arm, the coils being arranged as in an armature of a direct current electric motor, electrified through a commutator and brushes such that the coils produce the same magnetic polarity in the rotor overall as is produced in the rotor by the top and bottom permanent magnets;
whereby the amount of electricity required to run the motor is less than if it comprised just the axle, the field magnet, the commutator bars, the brushes, and the armature.
2. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 1, in which the top permanent magnet and the bottom permanent magnet are cylindrical, and the axle of the motor extends at least partially through a cylindrical axis of each such permanent magnet.
3. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 1, in which
a) as each section of the rotor passes between south oriented magnetic polarities of the top and bottom permanent rotor magnets, that section becomes magnetized with a south oriented magnetic polarity, and the corresponding coil on the rotor supplements and focuses the south magnetic polarization, which is then attracted by the north oriented magnetic polarity of the permanent field magnets, and
b) as each section of the rotor passes between north south oriented magnetic polarities of the top and bottom permanent rotor magnets, that section becomes magnetized with a north oriented magnetic polarity, and the corresponding coil on the rotor supplements and focuses the north magnetic polarization, which is then attracted by the south oriented magnetic polarity of the permanent field magnets.
4. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 1, in which approximately twenty-two arms form the rotor in an equidistant radiant formation.
5. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 1, in which faces of the top permanent magnet and the bottom permanent rotor magnet are positioned close to the rotor arms and coils, and end portions of the rotor arms extend past sides of the top and bottom permanent rotor magnets respectively.
6. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 1, in which the top permanent magnet is held in place by a top end-plate of a housing for the motor and the bottom permanent magnet is held in place by a bottom end-plate of the housing, and fine adjustments of the top and bottom permanent rotor magnets can be made by screwing the top and bottom end-plates which are threadably inserted in the housing.
7. The efficient motor with upper and lower permanent magnets and multiple rotor arm coils of claim 2, in which:
a) as each section of the rotor passes between south oriented magnetic polarities of the top and bottom permanent rotor magnets, that section becomes magnetized with a south oriented magnetic polarity, and the corresponding coil on the rotor supplements and focuses the south magnetic polarization, which is then attracted by the north oriented magnetic polarity of the permanent field magnets;
b) as each section of the rotor passes between north south oriented magnetic polarities of the top and bottom permanent rotor magnets, that section becomes magnetized with a north oriented magnetic polarity, and the corresponding coil on the rotor supplements and focuses the north magnetic polarization, which is then attracted by the south oriented magnetic polarity of the permanent field magnets;
c) approximately twenty-two arms form the rotor in an equidistant radiant formation;
d) faces of the top permanent magnet and the bottom permanent rotor magnet are positioned close to the rotor arms and coils, and end portions of the rotor arms extend past sides of the top and bottom permanent rotor magnets respectively;
e) the top permanent magnet is held in place by a top end-plate of a housing for the motor and the bottom permanent magnet is held in place by a bottom end-plate of the housing, and fine adjustments of the top and bottom permanent rotor magnets can be made by screwing the top and bottom end-plates which are threadably inserted in the housing.