MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617064346 A) filed by Kabushiki Kaisha Toyota Jidoshokki on May 21, 2026, for Method For Manufacturing Positive Electrode Material For Lithium-Ion Secondary Battery.
Inventors include Eguchi Tatsuya; Harata Masanori; Matsushiro Dai; Kimijima Takeshi; Fukunaga Ryo; Yamamoto Yusuke; Yoshida Shuhei; and Maki Takeshi.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: This method for manufacturing a positive electrode material for a lithium-ion secondary battery includes: a slurry preparation step (S10) in which a precursor slurry is obtained; a granulation step (S20) in which precursor particles are obtained from the precursor slurry; and a sintering step (S30) in which the precursor particles are sintered. The precursor slurry includes lithium phosphate, a manganese-containing phosphate compound, an iron oxide, and a dispersion medium such that the proportion of the mole ratio of manganese relative to the total of the mole ratio of manganese and the mole ratio of iron is at least 70% and no greater than 90%. The manganese-containing phosphate compound is Mn54, Mn32, or a mixture thereof. In the slurry preparation step (S10), a pulverization step (S11) is performed in which the lithium phosphate and the manganese-containing phosphate compound are pulverized together with the iron oxide.
Disclaimer: Curated by HT Syndication.
