MUMBAI, India, May 30 -- Intellectual Property India has published a patent application (202517044405 A) filed by Duesenfeld Gmbh, Wendeburg, Germany, on May 7, for 'method for recycling alkali metal batteries and battery processing system.'

Inventor(s) include Bussmann, Till.

The application for the patent was published on May 30, under issue no. 22/2025.

According to the abstract released by the Intellectual Property India: "The invention relates to a method for recycling alkali metal batteries (12), in particular Li batteries or Na batteries, which have an active material, a carrier foil on which the active material is arranged, binder by means of which the active material is bound to the carrier foil, a liquid electrolyte, conducting salt (38) and a housing that encloses the active material, carrier foil and binder, with the step of comminuting the alkali metal batteries (12) such that the comminuted material, the black matter (30), which contains the active material and the binder, is produced, with the steps of washing the comminuted material with a washing solvent (36) such that conducting salt (38) is washed out and the binder is not washed out such that low- conducting-salt comminuted material and a washing liquid (40) are obtained, regenerating the washing solvent (36) from the washing liquid (40), and in particular by distilling, and washing the comminuted material with at least some of the regenerated washing solvent (36). The invention also relates to a battery preparation system for recycling alkali metal batteries (12), in particular Li batteries or Na batteries."

The patent application was internationally filed on Oct. 26, 2023, under International application No.PCT/EP2023/080015.

Disclaimer: Curated by HT Syndication.