Battery current charger

Abstract

The object of the invention is a method for charging a rechargeable battery having non-liquid electrolyte, which battery has an internal resonance frequency. The charging process contains at least one charging interval performed with current pulses, the frequency of said current pulses is essentially identical with the internal resonance frequency of the battery to be charged. Following the charging interval consists of periodic current pulses optionally a second relaxation interval is inserted, in which no charging current is applied to the rechargeable battery, within which optionally a second discharging interval is applied. After the second relaxation interval the charging is performed in an interval consists of a continuous charging current, whereafter an optional first relaxation interval is inserted, within which optionally a second discharging interval is applied. This sequence of the above steps can be varied and applied repeatedly until the full charge of the battery is attained.

1 . An apparatus configured to charge a rechargeable battery, wherein the rechargeable battery has molecular cells and an internal resonance frequency, the apparatus comprising:
 a current generator configured to provide a non-DC charging current to the battery during a first time interval, the non-DC charging current configured to accelerate the molecular movement of cells.   
     
     
         2 . The apparatus of  claim 1  wherein the current generator is configured to not provide the non-DC charging current during a second time interval proximate the first time interval. 
     
     
         3 . The apparatus of  claim 1  wherein the current generator is configured to provide a DC charging current during a second time interval subsequent to the first time interval. 
     
     
         4 . The apparatus of  claim 3  wherein the current generator is configured to provide the non-DC charging current during a third charging interval subsequent to the second time interval. 
     
     
         5 . The apparatus of  claim 4  wherein the current generator is configured to provide no current to the battery during a fourth time interval occurring between the first time interval and the third time interval. 
     
     
         6 . The apparatus as specified in  claim 1  wherein the non-DC charging current has a frequency component that is a function of the battery internal resonant frequency. 
     
     
         7 . The apparatus as specified in  claim 6  wherein the non-DC charging current has a frequency component that is approximately the battery internal resonant frequency. 
     
     
         8 . The apparatus as specified in  claim 1  wherein the current generator is configured to generate the non-DC charging current as a function of a control signal, further comprising a signal generator configured to produce the control signal. 
     
     
         9 . The apparatus as specified in  claim 8  wherein the signal generator is configured to produce the control signal comprising a pulse train of pulses having a frequency corresponding to the internal resonance frequency of the rechargeable battery. 
     
     
         10 . The apparatus as specified in  claim 1  wherein the apparatus is configured to provide no voltage to the battery when the non-DC charging current provided to the battery. 
     
     
         11 . The apparatus as specified in  claim 1  wherein the current generator is configured to change the non-DC charging current frequency component as the impedance of the battery changes during charging. 
     
     
         12 . The apparatus as specified in  claim 11  wherein the frequency component is a function of the battery internal resonant frequency. 
     
     
         13 . The apparatus as specified in  claim 1  wherein the current generator is configured to generate the non-DC charging current as a function of a control signal, further comprising a signal generator configured to produce the control signal. 
     
     
         14 . The apparatus as specified in  claim 13  wherein the non-DC charging current has a frequency component configured to change as the impedance of the battery changes during charging. 
     
     
         15 . The apparatus as specified in  claim 14  wherein the frequency component is a function of the battery internal resonant frequency. 
     
     
         16 . The apparatus as specified in  claim 13  wherein the apparatus is configured to provide no voltage to the battery when the non-DC charging current provided to the battery. 
     
     
         17 . The apparatus of  claim 14  wherein the current generator is configured to not provide the non-DC charging current during a second time interval proximate the first time interval. 
     
     
         18 . The apparatus of  claim 17  wherein the current generator is configured to provide a DC charging current during a second time interval subsequent to the first time interval. 
     
     
         19 . The apparatus of  claim 18  wherein the current generator is configured to provide the non-DC charging current during a third charging interval subsequent to the second time interval. 
     
     
         20 . The apparatus of  claim 19  wherein the current generator is configured to provide no current to the battery during a fourth time interval occurring between the first time interval and the third time interval.