System and method for improving low-temperature performance of common battery

Abstract

The invention provides a system and method for improving the low-temperature performance of a common battery. The system comprises a battery cell, a control unit, a temperature detection unit, a heating source and heat conduction equipment. The method comprises the following steps that: the temperature detection unit detects the environment temperature of the battery cell; when the environment temperature is higher than preset threshold temperature, the heating source does not work; and when the environment temperature is lower than the preset threshold temperature, the control unit starts theheating source to generate heat, the heat is uniformly diffused to the periphery of the battery cell through the heat conduction equipment, and the control unit turns off the heating source when theenvironment temperature rises to be higher than the threshold temperature. According to the system and method of the invention, the ambient temperature is detected through the temperature detection unit, and the control unit controls the heating of the heating source and the heat conduction of the heat conduction equipment, so that the ambient temperature of the battery cell is adjusted, and therefore, the low-temperature performance of the battery is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a system and method for improving the low-temperature performance of common batteries. Background technique [0002] The general working temperature of common ordinary batteries is -20°C-60°C. When the temperature is lower than -10°C, the discharge capacity of the battery will decrease, and the maximum discharge current will also drop sharply. It is difficult to meet the working requirements of electronic products, and it is prone to crash Even shut down directly. [0003] In order to solve this problem, some use special low-temperature batteries; some use ultra-low temperature batteries to heat the main battery; some use structures for heat preservation. [0004] The methods currently used suffer from the following problems: [0005] 1. The cost of special low-temperature batteries is high, and the penetration rate is not high; [0006] 2. The extreme low temperature of the...

AI Technical Summary

Problems solved by technology

[0005] 1. The cost of special low-temperature batteries is high, and the penetration rate is not high;

[0006] 2. The extreme low temperature of the low-temperature battery is about -30°C, which is still far from the minimum working environment temperature, and cannot meet the demand for lower working temperature;

[0007] 3. The method of heating the main battery with an ultra-low temperature battery is too complicated;

[0008] 4. It is also difficult to achieve ultra-low temperature work by adopting structural insulation methods

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