Detection system and detection method for short-circuit current in lithium battery

The invention discloses a system and a method for detecting short-circuit current in a lithium battery. The system is formed by connecting a voltage detection module (1), an OCV maintaining module (2), a current detection module (3), an analog-to-digital conversion module (4), a control module (5) and a power supply module (6). The use method comprises the following steps: (1) measuring the OCV of a battery to be measured and controlling the adjustable voltage source to output a test voltage VT equal to the OCV value of the battery; (2) connecting the battery to be tested with an adjustable voltage source in parallel; and (3) continuously measuring the loop current and outputting data, and outputting a current change curve when the measurement is stopped. The system can accurately and effectively measure the short-circuit current in the lithium battery in a short time. 本发明公开了一种锂电池内短路电流的检测系统及检测方法。该系统由电压检测模块(1)、OCV保持模块(2)、电流检测模块(3)、模数转换模块(4)、控制模块(5)和供电模块(6)连接而成。使用方法包括：(1)测量待测电池OCV并控制可调电压源输出等于电池OCV值的测试电压VT；(2)将待