Publication number: 20240313216
Abstract: Provided is a transition metal-containing hydroxide capable of improving the cycle characteristics and safety of a secondary battery, while imparting an excellent battery capacity to the secondary battery, by preventing the elution of an additive metal element, which contained in the transition metal-containing hydroxide, due to phase transition or segregation. A transition metal-containing hydroxide that is a precursor of a positive electrode active material in a non-aqueous electrolyte secondary battery, the transition metal-containing hydroxide containing at least one main metal element selected from the group consisting of Ni, Co and Mn and at least one additive metal element selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Cr, Mo, W, Fe, Ru, Cu, Zn, B, Al, Ga, Si, Sn, P and Bi, in which a cumulative pore volume in a BJH method measured by a gas adsorption method is 0.145 cm3/g or less.
Type:
Application
Filed:
May 24, 2024
Publication date:
September 19, 2024
Applicants:
TANAKA CHEMICAL CORPORATION, PANASONIC ENERGY CO., LTD.
Inventors:
Akari MAKIDA, Ryota KOBAYASHI, Masahiro TAKASHIMA, Kohei KINTSU, Shun NOMURA, Takeshi CHIBA, Takayuki ISHIKAWA, Takuya SHINOMIYA