Abstract: A process for making a partially coated electrode active material may involve: (a) providing an electrode active material of the formula Li1+xTM1?xO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti, Mo, W, and Zr, and x is in the range of from zero to 0.2, wherein at least 60 mole-% of the transition metal of TM is Ni, and wherein the electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm; (b) treating the electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound; (c) treating the material obtained in (b) with moisture; and (d) repeating the sequence of (b) and (c) twice to 4 times, wherein, in the last sequence of (b) and (c), moisture is at least partially substituted by ozone.

Abstract: Disclosed herein is a process for making an electrode active material, where said process includes the following steps: (a) Providing a hydroxide TM(OH)2 or an oxyhydroxide of TM, where TM is one or more metals and contains Mn, optionally, Co, and from 85 to 95 mol % Ni, referring to the sum of Ni, Co and Mn; (b) Drying said hydroxide TM(OH)2 or oxyhydroxide of TM at a temperature in the range of from 400 to 600° C., thereby obtaining an oxide or oxyhydroxide of TM with a residual moisture content of from 200 to 500 ppm; (c) Mixing said oxide or oxyhydroxide from step (b) with a source of lithium, at least one compound of Mg or Al, and at least one compound of Ti or Zr; and (d) Treating the mixture obtained from step (c) thermally at a temperature in the range of 550 to 875° C.

Abstract: Electrode active material comprising (A) a core material according to general formula Li1+x1TM1?x1O2 wherein TM is a combination of Ni and at least one of Mn, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, and W, and x1 is in the range of from ?0.05 to 0.2, and (B) particles of cobalt compound(s) and of aluminum compound(s) and of titanium compound(s) or zirconium compound(s) wherein the molar ratio of lithium to cobalt in said particles is in the range of from zero to below 1 and wherein said particles are attached to the surface of the core material.

Abstract: The present invention is related to a process for coating anoxide material, said process comprising the following steps: (a) providing a particulate material selected from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides and lithiated layered nickel-cobalt-manganese oxides, (b) treating said cathode active material with a metal alkoxide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, and, optionally, repeating the sequence of steps (b) and (c), wherein steps (b) and (c) are carried out in a mixer that mechanically introduces mixing energy into the particulate material, or by way of a moving bed or fixed bed, and wherein steps (b) and (c) are carried out at a pressure that is in the range of from 5 mbar to 1 bar above normal pressure.

Abstract: Electrode active material comprising (A) a core material according to general formula Li1+x1TM1?x1O2 wherein TM is a combination of Ni and at least one of Mn, Co and Al, and, optionally, at least one more metal selected from Mg, Ti, Zr, Nb, Ta, and W, and x1 is in the range of from ?0.05 to 0.2, and (B) particles of cobalt compound(s) and of titanium compound(s) and of zirconium compound(s) and of aluminum compound(s) in which the average oxidation state of cobalt is higher than +II and lower than +III and wherein the molar ratio of lithium to cobalt in said particles is in the range of from zero to 1 and wherein said particles are attached to the surface of the core material.

Abstract: Process for making a coated oxide material wherein said process comprises the following steps: (a) providing a particulate material selected from lithiated nickel-cobalt aluminum oxides, lithium cobalt oxide, lithiated cobalt-manganese oxides and lithiated layered nickel-cobalt-manganese oxides, (b) treating said particulate material with an aqueous medium, (c) removing said aqueous medium, (d) drying said treated particulate material, (e) treating said particulate material from step (d) with a metal amide or alkyl metal compound, (f) treating the material obtained in step (e) with moisture or an oxidizing agent, and, optionally, repeating the sequence of steps (e) and (f).

Abstract: The present disclosure relates to a process for coating an oxide material, process comprising: (a) providing a particulate material chosen from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides, and lithiated layered nickel-cobalt-manganese oxides, (b) treating the cathode active material with a metal alkoxide, a metal halide, a metal chloride, a metal amide, or an alkyl metal compound, (c) treating the material obtained in step (b) with a gas containing HF, and, optionally, repeating the sequence of steps (b) and (c), wherein step (b) is carried out in a mechanical mixer, or step (b) is carried out using a moving bed or fixed bed wherein steps (b) and (c) are carried out at a pressure that is in the range of from 5 mbar to 1 bar above ambient pressure.

Abstract: An electrochemical cell has a cathode active material selected from mixed lithium transition metal oxides containing Mn and at least one second transition metal; lithium intercalating mixed oxides containing Ni, Al and at least one second transition metal; and lithium metal phosphates, wherein the outer surface of the particulate cathode active material is at least partially coated with an oxide selected from transition metal oxides, lanthanide oxides, and oxides of metals and half metals of groups 2, 13, and 14 of the periodic system; and an electrolyte composition containing at least one silyl ester phosphonate of formula (I) and at least one silyl ester phosphonate of formula (II)

Abstract: A process for making a partially coated electrode active material may involve: (a) providing an electrode active material of the formula Li1+xTM1?xO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti, Mo, W, and Zr, and x is in the range of from zero to 0.2, wherein at least 60 mole-% of the transition metal of TM is Ni, and wherein the electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm; (b) treating the electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound; (c) treating the material obtained in (b) with moisture; and (d) repeating the sequence of (b) and (c) twice to 4 times, wherein, in the last sequence of (b) and (c), moisture is at least partially substituted by ozone.

Abstract: Process for making a partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula Li1+x, TM1+XO2, wherein TM is a combination of Ni, Co and, optionally, Mn, and, optionally, at least one metal selected from Al, Ti and Zr, and x is in the range of from zero to 0.2, wherein at least 60 mole-% of the transition metal of TM is Ni, and wherein said electrode active material has a residual moisture content in the range of from 50 to 1,000 ppm, (b) treating said electrode active material with a metal alkoxide or metal halide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, (d) repeating the sequence of steps (b) and (c) twice to ten times, (e) performing a post-treatment by heating the material obtained after the last step (d) at a temperature from 200 to 400° C.

Abstract: Process for making an electrode active material according to general formula Li1+xTM1?xO2, wherein TM is a combination of Mn, Co and Ni, optionally in combination with at least one more metal selected from Al, Ti, and W, wherein at least 50 mole-% of TM is Ni, and x is in the range of from zero to 0.2, said process comprising the following steps: (a) mixing (A) a mixed oxide or oxyhydroxide or hydroxide of TM, and (B) at least one lithium compound selected from lithium hydroxide, lithium oxide and lithium carbonate, and so that the molar ratio of Li to TM is in the range of from 0.70 to 0.97. (b) Subjecting said mixture to heat treatment at a temperature in the range of from 300 to 900° C., (c) Mixing with at least one lithium compound (B), so that the total molar ratio of Li to TM is in the range of from 1.0 to 1.1, (d) Subjecting said mixture to heat treatment at a temperature in the range of from 700 to 1000° C.

Abstract: Process for making an electrode active material according to general formula Li1+?TM1??O2, wherein TM is a combination of Mn, Co and Ni in combination with at least one more metal selected from Al, Ti, and W, wherein at least 60 mole-% of TM is Ni, the percentage referring to the sum of Ni, Co and Mn, and x is in the range of from zero to 0.2, said process comprising the following steps: (a) mixing (A) a mixed oxide or oxyhydroxide of Mn, Co and Ni, (B) at least one lithium compound selected from lithium hydroxide, lithium oxide and lithium carbonate, and (C) an oxide, hydroxide or oxyhydroxide of Al, Ti or W, (b) Subjecting said mixture to heat treatment at a temperature in the range of from 700 to 1000° C.

Abstract: The present invention is related to a process for coating anoxide material, said process comprising the following steps: (a) providing a particulate material selected from lithiated nickel-cobalt aluminum oxides, lithiated cobalt-manganese oxides and lithiated layered nickel-cobalt-manganese oxides, (b) treating said cathode active material with a metal alkoxide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, and, optionally, repeating the sequence of steps (b) and (c), wherein steps (b) and (c) are carried out in a mixer that mechanically introduces mixing energy into the particulate material, or by way of a moving bed or fixed bed, and wherein steps (b) and (c) are carried out at a pressure that is in the range of from 5 mbar to 1 bar above normal pressure.