Patent ID: 6118248
Filing Date: 2000-09-12
Classification: H01M,H02J,Y02B,Y02E

Abstract:
A rechargeable battery useful with a device having a cut-off voltage and an external charger that supplies a charging current, the rechargeable battery comprising:(a) a container having a positive terminal and a negative terminal;(b) a rechargeable electrochemical cell disposed within said container, said cell having a positive electrode, a negative electrode, a cell voltage measured across said positive electrode and said negative electrode of said cell, and a nominal voltage; and(c) a controller electrically connected between said electrodes of said cell and said terminals of said container to create an output voltage measured across said positive terminal and said negative terminal of said container, said controller is adapted to end a discharge cycle of said cell by electronically disconnecting said electrodes of said cell from said terminals of said container and to control the charging current of the external charging circuit to charge said cell during a charge cycle.