Battery chargers for secondary cells of batteries, which control

Details Battery chargers for secondary cells of batteries, which control Battery chargers for secondary cells of batteries, which control

1990-07-13

1992-12-22

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 3, 320 6, H02J 700

Patent

active

051736527

ABSTRACT:
A battery charging system has an effective pure DC power source charging at least one secondary charge acceptor utilizing an aqueous electrolyte. The applied effective voltage is equal to or slightly greater than the full charge level of said acceptor cell. An impedance/resistance is coupled between the power source and the secondary charge acceptor cell. The impedance/resistance is a value which reduces any AC component out of the secondary cell to no more than 5% of the total voltage out in order to reduce the counterelectromotive force responsive to the applied voltage. The impedance/resistance has a value which is selected to set the capacitive reactance of the acceptor cell and the inductance reactance of the power source at levels which reduce the counterelectromotive force of the acceptor cell throughout the full charge cycle in order to produce a cooling effect.

REFERENCES:
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patent: 4311952 (1982-01-01), Mabuchi et al.
patent: 4422031 (1983-12-01), Vigerstol
Braun et al., Nickel-Cadmium Battery Application Handbook, General Electric Company, 1986, pp. 3-8, 9, 37 and 38.

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