| 摘要 |
The present invention relates to a system for checking whether electrolytes included in a secondary battery are leaked and, more specifically, to a system for checking whether electrolytes included in a flexible pouch-type secondary battery are leaked, which is capable of checking whether the electrolytes are leaked by detecting the thickness of the entire area of the flexible pouch-type secondary battery in a state of the secondary battery, which is formed by embedding an electricity generating unit in a flexible pouch-type external case, before or after the secondary battery is vacuumized. The system includes: a predetermined space in which a flexible pouch-type secondary battery is putted; laser sensors which are arranged at an upper part of the predetermined space to detect the thickness of the entire area of the pouch-type secondary battery; a vacuum chamber which connects the predetermined space with a vacuum pump to vacuumize the predetermined space; and a control unit which sets up check conditions, controls the laser sensors to detect the thickness of the flexible pouch-type secondary battery in a state of the secondary battery before or after the secondary battery is vacuumized, compares and analyzes the detected thickness, and determines a portion from which electrolytes are expected to leak. |
