Battery processing method
By measuring the charging and discharging rates of battery packs or modules, normal and defective battery modules can be distinguished. After safe discharge, defective batteries are crushed and frozen in an inert gas environment, which solves the fire risk in the disposal of waste lithium-ion batteries due to electrode short circuits and achieves safe and efficient battery disposal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- POSCO HLDG INC
- Filing Date
- 2024-12-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing technologies make it difficult to safely handle waste lithium-ion batteries with electrode short circuits, especially when it is difficult to locate the short-circuited battery cell in the battery pack or module and discharge it electrically. In addition, the wastewater generated by the water discharge method may cause subsequent problems.
By measuring the charging and discharging rates of battery packs or modules, normal and defective battery modules are identified. After safe discharge, normal battery modules are broken up, and defective battery modules are treated with an inert gas environment and low-temperature freezing to reduce the risk of fire. Inert gas is also used to remove electrolyte during the drying process.
It achieves a safe battery discharge and breakup process, reduces the risk of fire, and ensures the safety and efficiency of the processing.
Smart Images
Figure CN122349680A_ABST