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Battery current charger

a battery charger and current technology, applied in the direction of secondary cell charging/discharging, electric vehicles, electrical apparatus, etc., can solve the problems of limited charging time reduction, achieve the effect of reducing charging time, increasing the rate of chemical transformation, and reducing charging tim

Inactive Publication Date: 2009-12-17
MARINKA TOTH JOZSEF +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a charging method for rechargeable batteries that reduces the time needed for charging by accelerating the movement of molecules in the battery cells. This is achieved by using a charging method that involves pulsed current and a controlled current generator. By controlling the intensity of the current pulses, the charging process can be optimized to reduce the time needed for charging while still maintaining the necessary heat dissipation. The method also includes a relaxation interval to further enhance the charging process. The apparatus implementing the method includes a current metering device and a controlled current generator. The technical effect of the invention is to provide a faster and more efficient charging method for rechargeable batteries."

Problems solved by technology

It is well known that the reduction of the charging time is limited by the slowness of the chemical transformations causing the charging current inside the battery.

Method used

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Embodiment Construction

[0030]The first and simplest possible preferred method according to the invention can be followed in FIG. 1. On the horizontal axis of the graph the time t, on the vertical axis the current I applied to the terminals of the rechargeable battery are drawn up. The charging current is supplied by an electric power supply applied through a charging circuit to the terminals of the battery to be charged, which power supply can be a rectifier connected to the AC power line voltage, but any battery with higher voltage or similar may be used as well. With this embodiment there are different charging intervals inserted into the charging current, namely interval a, which is a pulsed charging interval, followed by an interval e, which is a charging interval with continuous charging current.

[0031]The interval a is a charging interval consisting of charging current pulses. The frequency of the pulse series is essentially identical with the internal resonance frequency of the rechargeable battery....

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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.

Description

CLAIM OF PRIORITY[0001]This application is a Continuation of U.S. application Ser. No. 10 / 478,815, filed Nov. 26, 2003, entitled Method and Apparatus for Charging a Rechargeable Battery with Non-Liquid Electrolyte now U.S. Pat. No. 7,557,541 the teachings of which are incorporated herein by reference.TECHNICAL FIELD[0002]The invention relates to a method for charging a rechargeable battery having non-liquid, but for example a gel electrolyte, said battery has an internal resonance frequency. In the course of charging a charging current is applied to a battery. The invention relates furthermore to a circuit arrangement for implementing the method of charging the battery having non-liquid electrolyte, where an electric power supply is connected through a current measuring device to the battery terminals.BACKGROUND ART[0003]Several methods are known for quick charging of batteries, where the charging current is periodically interrupted and during the pause on charging a short discharge...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H02J7/04
CPCH02J7/0093H02J7/00711Y02E60/10
Inventor MARINKA-TOTH, JOZSEFREISZ, ATTILAROZSNYAY, VIKTOR
Owner MARINKA TOTH JOZSEF
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