MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202647076565 A) filed by Posco Holdings Inc. on June 20, 2026, for Lithium-Containing Aqueous Sulfuric Acid Solution And Method For Preparing Same.

Inventors include Kim, Wanyi; Park, Joongkil; Park, Chonglyuck; Han, Sangwoo; Lee, Juseung Number; and Park, Junyong.

The application for the patent was published on July 03, 2026, under issue no. 27/2026.

Abstract: The present invention relates to a lithium-containing aqueous sulfuric acid solution and a method for preparing same. This method for preparing the aqueous sulfuric acid solution comprises the steps of: obtaining a valuable metal recovery composition from waste batteries, the valuable metal recovery composition containing valuable metal alloys, lithium compounds, copper (Cu), and graphite; separating graphite from the valuable metal recovery composition; performing sulfuric acid leaching of valuable metals, lithium compounds, and copper (Cu) in the valuable metal recovery composition; recovering the valuable metals and the copper (Cu) through solid-liquid separation in a leached lithium-containing aqueous sulfuric acid solution; and removing residual impurities from the leached lithium-containing aqueous sulfuric acid solution after the recovery step.

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