MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641024921 A) filed by Srm University- Ap, Amaravati, Andhra Pradesh, on March 3, for 'mg-doped single-crystalline ni-rich cathode and method for preparation thereof by multi-step annealing for lithium-ion batteries.'
Inventor(s) include Dr. Praneash Venkatachalam; Mr. Yogesh Dadaso Dange; Dr. Maram Pardha Saradhi; and Dr. Sujith Kalluri.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides method for preparing the Mg-doped single crystalline Ni-rich cathode material (SC Mg NCM-622). The method comprises of preparing a transition metal solution precursor by putting nickel (II) sulfate hexahydrate, cobalt (II) sulfate heptahydrate, and manganese (II) sulfate and magnesium sulfate monohydrate along with NaOH solution to adjust the pH and NH4OH solution in a continuous stirred tank reactor; performing stirring for at a temperature of 50 C with gradual variation of pH value from 11.0 to 10.6 to obtain metal hydroxide precursor Ni0.6Mn0.17Co0.2Mg0.03(OH)2; performing pre-calcination on dried Ni0.6Mn0.17Co0.2Mg0.03(OH)2 to get Mg NCM-622; preparing a lithiation composition by putting incorporating dried Mg NCM-622 precursor and Lithium Hydroxide (LiOH); performing first annealing followed by second annealing in air on Mg NCM-622; performing ball milling of the annealed Mg NCM-622; and performing reheating to obtain SC Mg-doped NCM-622 (SC Mg NCM-622) with well-defined, smooth-edged single particles."
Disclaimer: Curated by HT Syndication.
