POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

• Main Authors: HIBINO, Mitsuhiro, NATSUI, Ryuichi, ESAKI, Shogo, NAKURA, Kensuke, MATSUSHITA, Junko
• Format: Patent
• Language: English; French; German
• Published: 01.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present invention contains a lithium transition metal composite oxide which is represented by composition formula LixMnyNizTiaMbO2-cFc (wherein M represents at least one element that is selected from among P, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K, Bi and Al; 1.0 < x ≤ 1.2; 0.4 ≤ y ≤ 0.8; 0 ≤ z ≤ 0.4; 0 < a ≤ 0.03; 0 ≤ b ≤ 0.05; 0 < c ≤ 0.1; and (x + y + z + a + b) ≤ 2).