MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202647113855 A) filed by Eni S. P. A. on September 23, 2026, for Process For Recovering Cathode Material From Lithium-Ion Batteries.
Inventors include Favaretto, Massimo; Tognella, Enrico; Sama', Carmen; Pontarollo, Alberto; and Schimperna, Giuliana.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: Process for recovering cathode material from lithium ion batteries comprising the following stages: (a) isolating a cathode from a lithium-ion battery, said cathode comprising a cathode material comprising at least one active cathode material, at least one binder and, optionally, at least one conductive material, and a current collector, said cathode material adhered to said current collector via said at least one binder; (b) contacting the cathode with at least one glycol; (c) delaminating the cathode material from the current collector obtaining a mixture comprising a suspension of said cathode material dispersed in a liquid phase comprising said at least one glycol and a current collector immersed in said suspension; (d) recovering the cathode material and the current collector from said mixture; characterized in that said stage (c) is carried out in the presence of ultrasounds at a power comprised between 30 Watt and 500 Watt, preferably comprised between 50 Watt and 300 Watt, at a temperature comprised between 80°C and 280°C, preferably comprised between 85°C and 260°C, for a time comprised between 15 minutes and 24 hours, preferably comprised between 30 minutes and 20 hours. From the cathode material recovered through the above-mentioned process, after appropriate treatments, it is possible to obtain a restored active cathode material (for example, by a direct recycling process), or synthetic precursors that can be used in the regeneration of said active cathode material (for example, by a hydrometallurgical process), which can in turn be used in lithium-ion batteries.
Disclaimer: Curated by HT Syndication.
