Umicore

Umicore Korea, Ltd.

JinDoo Oh

Jens M Paulsen

HeonPyo Hong

Maxime Blangero

JiHye Kim

Dae-Hyun Kim

Jing Zhang

Daniël Nelis

Eric Robert

Jin Hu

Heonpyo Hong

A carbonate precursor compound for manufacturing a lithium metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries, M comprising 20 to 90 mol % Ni, 10 to 70 mol % Mn and 10 to 40 mol % Co, the precursor further comprising a sodium and sulfur impurity, wherein the sodium to sulfur molar ratio (Na/S) is 0.4&#x3c;Na/S&#x3c;2. Thes lithium metal (M)-oxide powder has a particle size distribution with 10 &#x3bc;m&#x2264;D50&#x2264;20 &#x3bc;m, a specific surface with 0.9&#x2264;BET&#x2264;5, the BET being expressed in g/cm, the powder further comprises a sodium and sulfur impurity, wherein the sum (2*Na)+Sof the sodium (Na) and sulfur (S) content expressed in wt % is more than 0.4 wt % and less than 1.6 wt %, and wherein the sodium to sulfur molar ratio (Na/S) is 0.4&#x3c;Na/S&#x3c;2.

Impurity containing cathode material with preferred morphology and method to prepare from impurity containing metal carbonate

A method for producing a M-carbonate precursor of a Li-M oxide cathode material in a continuous reactor, wherein M=NixMnyCozAn, A being a dopant, with x&#x3e;0, y&#x3e;0, 0&#x2264;z&#x2264;0.35, 0&#x2264;n&#x2264;0.02 and x+y+z+n=1, the method comprising the steps of: &#x2014;providing a feed solution comprising Ni-, Mn-, Co- and A-ions, and having a molar metal content M&#x2033; feed, &#x2014;providing an ionic solution comprising either one or both of a carbonate and a bicarbonate solution, the ionic solution further comprising either one or both of Na- and K-ions, &#x2014;providing a slurry comprising seeds comprising M'-ions and having a molar metal content M&#x2032; seeds, wherein M&#x2032;=Nix&#x2032;Mny&#x2032;Coz&#x2032;A&#x2032;n&#x2032;, A&#x2032; being a dopant, with 0&#x2264;x&#x2032;&#x2264;1, 0&#x2264;y&#x2032;&#x2264;1, 0&#x2264;z&#x2032;&#x2264;1, 0&#x2264;n&#x2032;&#x2264;1 and x&#x2032;+y&#x2032;+z&#x2032;+n&#x2032;=1, and wherein the molar ratio M&#x2032; seeds/M&#x2033; feed is between 0.001 and 0.1, &#x2014;mixing the feed solution, the ionic solution and the slurry in the reactor, thereby obtaining a reactive liquid mixture, &#x2014;precipitating a carbonate onto the seeds in the reactive liquid mixture, thereby obtaining a reacted liquid mixture and the M-carbonate precursor, and &#x2014;separating the M-carbonate precursor from the reacted liquid mixture.

Carbonate precursors for lithium nickel manganese cobalt oxide cathode material and the method of making same

A method for manufacturing a cobalt based hydroxide carbonate compound having a malachite-rosasite mineral structure, comprising the steps of:

Precursors of cathode materials for a rechargeable lithium ion battery

A carbonate precursor compound for manufacturing a lithium metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries, M comprising 20 to 90 mol % Ni, 10 to 70 mol % Mn and 10 to 40 mol % Co, the precursor further comprising a sodium and sulfur impurity, wherein the sodium to sulfur molar ratio (Na/S) is 0.4&#x3c;Na/S&#x3c;2. The lithium metal (M)-oxide powder has a particle size distribution with 10 &#x3bc;m&#x2264;D50&#x2264;20 &#x3bc;m, a specific surface with 0.9&#x2264;BET&#x2264;5, the BET being expressed in g/cm2, the powder further comprises a sodium and sulfur impurity, wherein the sum (2*Nawt)+Swt of the sodium (Nawt) and sulfur (S wt) content expressed in wt % is more than 0.4 wt % and less than 1.6 wt %, and wherein the sodium to sulfur molar ratio (Na/S) is 0.4&#x3c;Na/S&#x3c;2.

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Cheonan, South Korea

JinDoo Oh