POSITIVE ELECTRODE MIXTURE AND LITHIUM BATTERY

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PROBLEM TO BE SOLVED : To provide an all-solid lithium battery superior in output characteristics. SOLUTION : The positive electrode mixture contains a particle of a compound as expressed by the following formula (1) and a sulfide system solid electrolyte particle, and the tap density of the particle expressed by the formula (1) is 2.0 g/cm3 or more. Formula (1) : LiaNibCocMndMeOf+σ. In the formula (1), a is larger than 0.9 and 1.05 or less, f is 2 or 4, σ is -0.2 or more and 0.2 or less, M is one kind or more of element selected from Mg, Ca, Y, rare earth element, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Cu, Ag, Zn, B, Al, Ga, C, Si, Sn, N, P, S, F and Cl. When f=2, b is 0 or more and 1 or less, c is 0 or more and 1 or less, d is 0 or more and 1 or less, e is 0 or more and 0.5 or less, and b, c, d and e are b+c+d+e=1. When f is 4, b is 0 or more and 2 or less, c is 0 or more and 2 or less, d is 0 or more and 2 or less, e is 0 or more and 1 or less, and b, c, d and e are b+c+d+e=2. COPYRIGHT : (C)2011, JPO&INPIT