Abstract: Process for making a composite oxide according to the formula x·Li2Ni1-y1-y2Mny1M1y2O3·(1?x)·LiNi1-zM2zO2 wherein x is in the range of from 0.01 to 0.5, z is in the range of from zero to 0.5, M1 is selected from Ti, Zr, Sn, Ge, Ta, Nb, Sb, W, and Mo, and combinations of at least two of the foregoing, M2 is at least one of Co, Al, Mg, Fe, or Mn, or a combination of at least two of the foregoing, 0.1?y1?0.75, zero?y2?0.05, said process comprising the following steps: (a) providing a particulate hydroxide, oxide or oxyhydroxide of TM where TM has the general formula x·Ni1-y1-y2Mny1M1y·(1?x)Ni1-zM2z, or the respective species without M1 and/or M2, (b) adding a source of lithium, (c) treating the mixture obtained from step (b) thermally under an atmosphere comprising oxygen in two steps: (c) heating the mixture obtained from step (b) to 680 to 800° C. in an atmosphere containing in the range of from 10 to 100 vol-% oxygen, and, (e) heating the intermediate from step (c) to 450 to 580° C.

Abstract: Process for making a mixed oxide according to the formula Li1+xTM1?xO2 wherein x is in the range of from 0.1 to 0.2 and TM is a combination of elements according to general formula (I) (NiaCobMnc)1-dM1d (I) wherein a is in the range of from 0.30 to 0.38, b being in the range of from zero to 0.05, c being in the range of from 0.60 to 0.70, and d being in the range of from zero to 0.05, M1 is selected from Al, Ti, Zr, W, Mo, Nb, Ta, Mg and combinations of at least two of the forego-ing, a+b+c=1, said process comprising the following steps: (a) providing a particulate hydroxide, oxide or oxyhydroxide of manganese, nickel, and, optionally, at least one of Co and M1, (b) adding a source of lithium, (c) calcining the mixture obtained from step (b) thermally under an atmosphere comprising 0.05 to 5 vol.-% of oxygen at a maximum temperature the range of from 650 to 1000° C.

Abstract: Cathode active material in particulate form with a mean particle diameter in the range from 2 to 16 µm (D50), wherein the cathode active material has the composition Li1+xTM1-xO2 wherein x is in the range of from 0.1 to 0.2 and TM is a combination of elements according to general formula (I), (NiaCobMnc)1-d-eM1dM2e where the variables are each defined as follows: a is in the range from 0.20 to 0.40, b is in the range of from zero to 0.15, c is in the range of from 0.50 to 0.75, d is in the range of from zero to 0.015, and e is in the range of from zero to 0.02, M1 is selected from Al, Ti, Zr, Mo, W, Fe, Nb, and Mg, M2 is selected from B and K, with a + b + c = 1.0 wherein said composite oxide has a specific surface (BET) in the range from 0.5 m2/gto 10 m2/gand a pressed density of at least 2.9 g/cm3, and wherein said cathode active material has an average primary particle diameter in the range of from 200 to 3,000 nm.

Abstract: Process for making a manganese composite (oxy)hydroxide with a mean particle diameter D50 in the range from 2 to 16 ?m comprising the step(s) of combining (a) an aqueous solution containing salts of nickel and of manganese, and, optionally, at least one of Al, Mg, or transition metals other than nickel and manganese wherein at least 50 mole-% of the metal is manganese, (b) with an aqueous solution of an alkali metal hydroxide and (c) an organic acid or its alkali or ammonium salt wherein said organic acid bears at least two functional groups per molecule and at least one of the functional groups is a carboxylate group.

Abstract: Particulate material of the composition Li1+xTM1?xO2 wherein x is in the range of from 0.1 to 0.25 and TM is a combination of elements according to general formula (I) (NiaCobMnc)1?dM1d(I) wherein a is in the range of from 0.30 to 0.38, b being in the range of from zero to 0.05, c being in the range of from 0.60 to 0.70, and d being in the range of from zero to 0.05, M1 is selected from Al, Ti, Zr, Mo, Mg, B, and combinations of at least two of the foregoing, a+b+c=1, wherein said particulate material has an average particle diameter D50 in the range of from 2 to 20 ?m and wherein said particulate material has a pressed density in the range of from 2.75 to 3.1 g/cm3.

Abstract: Particulate material of the composition Li1+xTM1?xO2 wherein x is in the range of from ?0.02 to +0.05, TM comprises at least 93 mol-% nickel and (A) at least one element M1 wherein M1 is selected from Nb, Ta, Ti, Zr, W and Mo, (B) at least one element M2 wherein M2 is selected from B, Al, Mg and Ga, wherein said particulate material has an average particle diameter (D50) in the range of from 2 to 20 ?m.