| 简介 |
PROBLEM TO BE SOLVED : To provide a lithium ion secondary battery of which cycle property in the case of repeating intermittent cycles is more heightened than before.
SOLUTION : A cathode activator particle contains lithium complex oxide, The lithium complex oxide is expressed by LixM1-yLyO2 (0.85≤x≤1.25, 0≤y≤0.50, M is at least one kind selected from a group composed of Ni and Co, L is at least one kind selected from a group composed of alkali earth element, transition metal element excluding Ni and Co, rare earth element, IIIb group element, and IVb group element). Oxide of molybdenum expressed by LiaMoOb (1≤a≤4, 1≤b≤6 ) exists on the surface of the activator particle.
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