| 摘要 |
<p>This production method for positive electrode active material used in lithium secondary batteries is characterized in that an olivine LiMPO4 is produced by: mixing lithium phosphate having a particle diameter D90 of 100mum or smaller, an M-element-containing compound (therein M represents 1 or more elements selected from the group consisting of Mg, Ca, Fe, Mn, Ni, Co, Zn, Ge, Cu, Cr, Ti, Sr, Ba, Sc, Y, Al, Ga, In, Si, B, and the rare earth elements) having a particle diameter D90 of 100mum or smaller, and water; adjusting the concentration of M in the water to 4 mol/L or higher to obtain a starting material; and conducting hydrothermal synthesis using the starting material.</p> |
