Analysis of the identification and solution of scrap batteries

Recognition and appearance judgment of end-of-life batteries: obvious swelling, damage, leakage, and deformation; voltage judgment: single cell voltage ≥ 4.27V, (non-high voltage formula) or lower than 2.6V; internal resistance judgment: battery internal resistance is infinite (Cannot be detected), or more than 2 times the initial internal resistance; capacity determination: the capacity of the two continuous discharges is less than 70% of the nominal capacity; the resolution isolation mark of the used battery: the battery that has been judged to be scrapped needs to be marked Store it clearly and separately. It is strictly forbidden to charge or discharge again. The temporary storage location must meet the fire protection requirements, such as iron cabinets, iron barrels, etc.; Soaking salt water: configure according to the ratio of salt water 1:20, and use wide-mouthed containers (such as turnover baskets) , Iron barrels, etc.), placed in an open outdoor (no flammable and explosive materials around), immerse the battery in salt water for more than 2 hours, no more than 3 groups at a time; take out the immersed wreckage with tongs to confirm that there is no voltage or After it no longer generates heat, it can be resolved as general solid waste; Note: If conditions permit, you can also contact the manufacturer to help resolve the statement: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete Previous: What are the advantages and disadvantages of graphene batteries and lithium batteries?