SYSTEM AND METHOD FOR RAPIDLY CHARGING BATTERY WHILE CONSIDERING THERMAL STABILITY
First Claim
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1. A method of rapidly charging a battery, the method comprising:
- detecting a temperature, by a temperature detection unit;
detecting a voltage of a secondary battery, by a voltage detection unit;
determining whether the voltage of the secondary battery detected through the battery detection unit is lower than a first voltage, by a control unit;
if the voltage of the secondary battery is lower than the first voltage, rapidly primarily charging the secondary battery by applying a temperature compensation factor to a first constant current, by the control unit;
if the voltage of the secondary battery is not lower than the first voltage, determining whether the voltage of the secondary battery is lower than a second voltage that is higher than the first voltage, by the control unit;
if the voltage of the secondary battery is lower than the second voltage, charging the secondary battery by applying the temperature compensation factor to a second constant current, by the control unit;
if the voltage of the secondary battery is not lower than the second voltage, determining whether the voltage of the secondary battery is lower than a third voltage, by the control unit;
if the voltage of the secondary battery is lower than the third voltage, charging the secondary battery by applying the temperature compensation factor to a third constant current, by the control unit; and
if the voltage of the secondary voltage is not lower than the third voltage, terminating the charging operation.
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Abstract
The present invention relates to a rapid charging system and a rapid charging method that consider thermal stability, and according to the present invention, a battery may be rapidly charged by determining a charging current based on the environment of the battery and the state of the battery, and the life span of the battery may be prevented from being shortened, the charging efficiency becomes higher, and the charging time may be reduced by preventing degradation of the battery due to the charging efficiency and the reaction heat of the battery.
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Citations
8 Claims
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1. A method of rapidly charging a battery, the method comprising:
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detecting a temperature, by a temperature detection unit; detecting a voltage of a secondary battery, by a voltage detection unit; determining whether the voltage of the secondary battery detected through the battery detection unit is lower than a first voltage, by a control unit; if the voltage of the secondary battery is lower than the first voltage, rapidly primarily charging the secondary battery by applying a temperature compensation factor to a first constant current, by the control unit; if the voltage of the secondary battery is not lower than the first voltage, determining whether the voltage of the secondary battery is lower than a second voltage that is higher than the first voltage, by the control unit; if the voltage of the secondary battery is lower than the second voltage, charging the secondary battery by applying the temperature compensation factor to a second constant current, by the control unit; if the voltage of the secondary battery is not lower than the second voltage, determining whether the voltage of the secondary battery is lower than a third voltage, by the control unit; if the voltage of the secondary battery is lower than the third voltage, charging the secondary battery by applying the temperature compensation factor to a third constant current, by the control unit; and if the voltage of the secondary voltage is not lower than the third voltage, terminating the charging operation. - View Dependent Claims (2, 3)
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4. A system for rapidly charging a battery, the system comprising:
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a temperature detection unit for detecting temperature; a power supply unit that supplies electric power for charging a secondary battery; a charging that is connected to the power supply unit to charge the secondary battery; a voltage detection unit that detects voltage information of the secondary battery and outputs the detected voltage information; and a control unit that determines a charging current based on the temperature detected by the temperature detection unit and the voltage information detected by the voltage detection unit to control the charging unit such that the control unit charges the secondary battery. - View Dependent Claims (5, 6, 7, 8)
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Specification