Bacon & Thomas, PLLC
Method for producing positive electrode material of Li-ion secondary battery
A method for producing a positive electrode material adapted to the Li-ion secondary batteries is disclosed. The produced material has the following formula (I),Li1+xMn2−yMyO4   (I)wherein M is Mg, Al, Cr, Fe, Co, or Ni; 0≦x≦0.4, and 0≦y≦0.2. The method is achieved by co-precipitating a gel salts with an organic acid. First, salts of Li, Mn and M are mixed with at least a solvent to form an initial solution. The mole ratio of Li, Mn and M ions in their respective salts is (1+x):(2−y):y. Next, at least a chelate is added into the initial solution to form a suspension, which is then filtered to obtain a co-precipitate. Finally, the co-precipitate is calcined and heated to obtain the final product.
Tatung Co., Ltd.
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H01M H01M Y02E H01M
additional inventional additional inventional
Wen-Jen Yi-Shiuan She-Huang Yung-Jen Mu-Rong
Liu Chen Wu Lin Yang