Battery control method, battery and electronic equipment
A battery control method and technology of electronic equipment, applied in the electronic field, can solve the problems of low battery output power, low battery capacity, and inability to meet the power requirements of electronic equipment, so as to achieve the effect of increasing battery temperature and avoiding low capacity
Active Publication Date: 2013-04-10
LENOVO (BEIJING) LTD
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Problems solved by technology
[0002] Existing rechargeable batteries are under low temperature conditions (such as minus 40 degrees), because the internal resistance of the battery increases, the output power of the battery is very small, and the battery voltage will soon drop below the cut-off voltage, which cannot meet the power requirements of electronic equipment.
[0003] In order to solve the above problems, special low-temperature batteries are used to meet the low-temperature requirements of the system, but the inventors found in the process of implementing the embodiment of the present invention that at least low-temperature batteries have low energy density in the prior art, and the battery capacity is low under the same volume. , the disadvantage of poor high-temperature working characteristics of low-temperature batteries
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[0062]In the battery control method, battery, and electronic equipment of the embodiments of the present invention, in a low-temperature environment, the load is powered by current discharge, and the battery is heated by the current flowing through the battery itself, so that the temperature of the battery rises, but the entire heating During the process, the current power supply current will be determined according to the current temperature of the battery at any time. When the battery uses the power supply current corresponding to the temperature to supply power to the load at the current temperature, the voltage of the battery is higher than the cut-off voltage current. Through the above process, it not only ensures that the voltage of the battery is maintained above the cut-off voltage, but also increases the temperature of the battery, so that the battery can enter the working state, avoiding the adverse effects caused by the low capacity of the special low-temperature bat...
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The invention aims to provide a battery control method, a battery and electronic equipment. The battery control method is applied to the battery. The battery is provided with a cutoff voltage, and is used for supplying power to a load. The battery control method comprises the following circularly-performed steps till the temperature of the battery is higher than or equal to a first temperature threshold: acquiring the current temperature of the battery; when the current temperature of the battery is lower than the first temperature threshold, determining current intensity which corresponds to the current temperature; and controlling the battery to supply power to the load by using power supply current having the current intensity, wherein when the power supply current is used for supplying power to the load at the current temperature of the battery, the voltage of the battery is higher than the current of the cutoff voltage. According to the battery control method, an existing ordinary battery can enter a working state rapidly in a low-temperature environment, so that adverse effects caused by low capacity of a special low-temperature battery and high-temperature working characteristic difference are avoided.
Description
technical field [0001] The invention belongs to the field of electronics, in particular to a battery control method, battery and electronic equipment Background technique [0002] Existing rechargeable batteries under low temperature conditions (such as minus 40 degrees), because the internal resistance of the battery increases, the output power of the battery is very small, and the battery voltage will soon drop below the cut-off voltage, which cannot meet the power requirements of electronic equipment. [0003] In order to solve the above problems, special low-temperature batteries are used to meet the low-temperature requirements of the system, but the inventors found in the process of implementing the embodiment of the present invention that at least low-temperature batteries have low energy density in the prior art, and the battery capacity is low under the same volume. , The shortcoming of poor high temperature working characteristics of low temperature batteries. Co...
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IPC IPC(8): H01M10/48H01M10/44
CPCY02E60/10
Inventor 邓乐海
Owner LENOVO (BEIJING) LTD