MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202617005689 A) filed by Proterial, Ltd. on January 20, 2026, for Method For Manufacturing Positive Electrode Active Material For Lithium Ion Secondary Battery, And Method For Manufacturing Lithium Ion Secondary Battery.
Inventors include Nakabayashi Takashi; and Tokoro Hisato.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: The purpose of the present invention is to provide: a method for manufacturing a positive electrode active material, which has characteristics equivalent to those of a new positive electrode active material, from a recovered positive electrode active material; and a method for manufacturing a lithium ion secondary battery using the regenerated positive electrode active material. In order to achieve the purpose, a method for manufacturing a positive electrode active material for a lithium ion secondary battery according to one embodiment of the present invention, with which a new positive electrode active material is manufactured from a positive electrode active material that is recovered from a lithium ion secondary battery, includes: a pulverization step S002 for pulverizing the recovered positive electrode active material so as to obtain a pulverized powder 1; an aggregation step S003 for obtaining an aggregated powder 2 from the pulverized powder 1 of the positive electrode active material; a lithium replenishment material mixing step S004 for mixing a lithium replenishment material 3, which is composed of a lithium compound, with the aggregated powder so as to obtain a mixed powder 4; and a firing step S005 for firing the mixed powder 4.
Disclaimer: Curated by HT Syndication.
