METHOD FOR MAKING NANO-PARTICLE FROM SPENT LITHIUM ION BATTERIES

摘要

PURPOSE: A nanopowder producing method from waste lithium ion batteries is provided to heat-treating a metal ion solution obtained from the waste lithium ion batteries. CONSTITUTION: A nanopowder producing method from waste lithium ion batteries comprises the following steps: separating a metal ion solution from the waste lithium ion batteries(S100); spraying the metal ion solution in a micro-droplets(S200); passing the micro-droplets through fire for obtaining the nanopowder(S300); and heat processing the obtained nanopowder at 700~1,000deg C(S400). The metal ion solution is obtained from a positive electrode active material.