Battery leakage current detection method

• Main Authors: WANG LI, ZHU YUAN, YU CHENGPING, YE HAISONG, LIU JIANHUA, LIU JINCHENG
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a battery leakage current detection method. A preset discharge curve graph of a current battery is obtained; a current battery voltage before storage and a current battery voltage after storage are collected; a pre-storage capacity value corresponding to the voltage value before storage and a post-storage capacity value corresponding to the voltage value after storage are found outcorrespondingly according to the preset discharge curve graph and a preset mapping relationship; and a leakage current of the current battery is calculated finally. According to the method, the leakage current is obtained by utilizing the capacity values before and after storage and the preset storage duration, so that the current leakage current can be accurately detected; accurate calculation of the leakage current is completed by means of the linearly changed parameter of the capacity, and the misjudgment rate of the battery is greatly reduced; besides, since the leakage current isaccurately calculated, th