Patents by Inventor Daniël Nelis
Daniël Nelis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11581529Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: GrantFiled: May 6, 2020Date of Patent: February 14, 2023Assignee: UmicoreInventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
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Patent number: 11502285Abstract: A rechargeable electrochemical cell comprising a negative electrode and a positive electrode is described. The positive electrode comprises a product having as overall formula Lip(NixMnyCozMmAlnAa)O2±b, wherein M signifies one or more elements from the group Mg, Ti, Cr, V and Fe, wherein A signifies one or more elements from the group F, C, Cl, S, Zr, Ba, Y, Ca, B, Sn, Sb, Na and Zn, and wherein 0.9<(x+y+z+m+n+a)<1.1, b<0.02, 0.9<p<1.110, 0.30<x<0.95, (y+z)?0.09, 0?m?0.05, 0?a?0.05, and 0?n?0.15. The negative electrode comprises composite particles, wherein the composite particles comprise silicon-based domains in a matrix material. The individual silicon-based domains are either free silicon-based domains that are not or not completely embedded in the matrix or are fully embedded silicon-based domains that are completely surrounded by the matrix material.Type: GrantFiled: September 11, 2017Date of Patent: November 15, 2022Assignees: UMICORE, UMICORE KOREA LTD.Inventors: Jean-Sébastien Bridel, Stijn Put, Dongjoon Ihm, Daniel Nelis
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Patent number: 11476461Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula M(O)x(OH)2-x-y(CO3)y, with 0<x?1, 0<y<0.03 and M=NiaMnbCocAd. A being a dopant, with 0.30?a<0.90, 0.10?b<0.40, 0.10?c<0.40, d<0.05 and a+b+c+d=1, the precursor having a Na content less than 200 ppm, a S content less than 250 ppm, the precursor having a specific surface area with a BET value expressed in m2/g and a tap density TD expressed in g/cm3, with a ratio BET/TD>30.104 cm5/g2.Type: GrantFiled: March 14, 2017Date of Patent: October 18, 2022Assignees: UMICORE, UMICORE KOREA, LTD.Inventors: Jens Paulsen, Daniël Nelis, Jin Hu, Liang Zhu, Eric Robert
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Patent number: 11401167Abstract: This invention relates to an industrial process of manufacturing hydroxide precursor for lithium transition metal oxide used in secondary lithium ion batteries. More particularly, this process utilizes highly concentrated nitrate salts and is designed to mitigate waste production.Type: GrantFiled: March 15, 2018Date of Patent: August 2, 2022Assignees: UMICORE, UMICORE KOREA, LTD.Inventors: Jens Paulsen, Eric Robert, Dirk Vanhoutte, Daniël Nelis, Randy De Palma, Dae-Hyun Kim
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Patent number: 11380882Abstract: 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>0, y>0, 0?z?0.35, 0?n?0.02 and x+y+z+n=1, the method comprising the steps of: —providing a feed solution comprising Ni-, Mn-, Co- and A-ions, and having a molar metal content M? feed, —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, —providing a slurry comprising seeds comprising M?-ions and having a molar metal content M? seeds, wherein M?=Nix?Mny?Coz?A?n?, A? being a dopant, with 0?x??1, 0?y??1, 0?z??1, 0?n??1 and x?+y?+z?+n?=1, and wherein the molar ratio M? seeds/M? feed is between 0.001 and 0.Type: GrantFiled: September 30, 2015Date of Patent: July 5, 2022Assignees: UMICORE, UMICORE KOREA LTD.Inventors: Jin Hu, HeonPyo Hong, Jens Paulsen, JinDoo Oh, Daniël Nelis, Eric Robert
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Publication number: 20210159481Abstract: A rechargeable electrochemical cell comprising a negative electrode and a positive electrode is described. The positive electrode comprises a product having as overall formula Lip(NixMnyCozMmAlnAa)O2±b, wherein M signifies one or more elements from the group Mg, Ti, Cr, V and Fe, wherein A signifies one or more elements from the group F, C, Cl, S, Zr, Ba, Y, Ca, B, Sn, Sb, Na and Zn, and wherein 0.9<(x+y+z+m+n+a)<1.1, b<0.02, 0.9<p<1.110, 0.30<x<0.95, (y+z)?0.09, 0?m?0.05, 0?a?0.05, and 0?n?0.15. The negative electrode comprises composite particles, wherein the composite particles comprise silicon-based domains in a matrix material. The individual silicon-based domains are either free silicon-based domains that are not or not completely embedded in the matrix or are fully embedded silicon-based domains that are completely surrounded by the matrix material.Type: ApplicationFiled: September 11, 2017Publication date: May 27, 2021Inventors: Jean-Sébastien BRIDEL, Stijn PUT, Dongjoon IHM, Daniël NELIS
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Publication number: 20210036315Abstract: Silicon-based powder for use in the negative electrode of a battery, whereby the silicon-based powder comprises silicon-based particles, whereby the silicon-based particles have a number-based particle size distribution having a d50, whereby the particle size of a particle is considered to be the largest dimension of said particle, whereby less than 8.0% of the particles have a size which is larger than twice the d50. Such a silicon based powder may be embedded in a matrix to form an active material powder. Preferably d50<150 nm and d10>10 nm. The cycle efficiency of a negative electrode of a battery, made using such a powder, is much improved.Type: ApplicationFiled: February 5, 2019Publication date: February 4, 2021Inventors: Stijn PUT, Nicolas MARX, Jan GILLEIR, Daniël NELIS
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Publication number: 20200321609Abstract: A lithium ion battery comprising a negative electrode and an electrolyte, whereby the negative electrode comprises composite particles, whereby the composite particles comprise silicon-based domains, whereby the composite particles comprise a matrix material in which the silicon-based domains are embedded, whereby the composite particles and the electrolyte have an interface, whereby at this interface there is a SEI layer, characterized in that the SEI layer comprises one or more compounds having carbon-carbon chemical bonds and the SEI layer comprises one or more compounds having carbon-oxygen chemical bonds, whereby a ratio, defined as the area of a first peak divided by the area of a second peak, is at least 1.30, whereby the first peak and second peak are peaks in an X-ray photoelectron spectroscopy measurement of the SEI, whereby the first peak represents C—C chemical bonds and whereby the second peak represents C—O chemical bonds.Type: ApplicationFiled: September 12, 2018Publication date: October 8, 2020Inventors: Stijn PUT, Daniël NELIS, Jean-Sébastien BRIDEL, Jeong-Rae KIM
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Publication number: 20200266429Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: ApplicationFiled: May 6, 2020Publication date: August 20, 2020Inventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
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Publication number: 20200031682Abstract: This invention relates to an industrial process of manufacturing hydroxide precursor for lithium transition metal oxide used in secondary lithium ion batteries. More particularly, this process utilizes highly concentrated nitrate salts and is designed to mitigate waste production.Type: ApplicationFiled: March 15, 2018Publication date: January 30, 2020Inventors: Jens PAULSEN, Eric ROBERT, Dirk VANHOUTTE, Daniël NELIS, Randy DE PALMA, Dae-Hyun KIM
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Patent number: 10547056Abstract: A particulate precursor compound for manufacturing a lithium transition metal (M)-oxide powder for use as an active positive electrode material in lithium-ion batteries, wherein (M) is NixMnyCozAv, A being a dopant, wherein 0.33?x?0.60, 0.20?y?0.33, and 0.20?z?0.33, v?0.05, and x+y+z+v=1, the precursor comprising Ni, Mn and Co in a molar ratio x:y:z and having a specific surface area BET in m2/g and a sulfur content S expressed in wt %, wherein formula (I).Type: GrantFiled: September 23, 2016Date of Patent: January 28, 2020Assignees: UMICORE, UMICORE KOREA, LTD.Inventors: Liang Zhu, Randy De Palma, Hyo Sun Ahn, Sung Jun Cho, Daniël Nelis, Kris Driesen
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Publication number: 20200006769Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula M(O)x(OH)2-x-y(CO3)y, with 0<x?1, 0<y<0.03 and M=NiaMnbCocAd. A being a dopant, with 0.30?a<0.90, 0.10?b<0.40, 0.10?c<0.40, d<0.05 and a+b+c+d=1, the precursor having a Na content less than 200 ppm, a S content less than 250 ppm, the precursor having a specific surface area with a BET value expressed in m2/g and a tap density TD expressed in g/cm3, with a ratio BET/TD>30.104 cm5/g2.Type: ApplicationFiled: March 14, 2017Publication date: January 2, 2020Inventors: Jens PAULSEN, Daniël NELIS, Jin HU, Liang ZHU, Eric ROBERT
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Publication number: 20190109326Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Inventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
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Patent number: 10181600Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: GrantFiled: June 22, 2011Date of Patent: January 15, 2019Assignee: UMICOREInventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
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Publication number: 20180269477Abstract: A particulate precursor compound for manufacturing a lithium transition metal (M)-oxide powder for use as an active positive electrode material in lithium-ion batteries, wherein (M) is NixMnyCozAv, A being a dopant, wherein 0.33?x?0.60, 0.20?y?0.33, and 0.20?z?0.33, v?0.05, and x+y+z+v=1, the precursor comprising Ni, Mn and Co in a molar ratio x:y:z and having a specific surface area BET in m2/g and a sulfur content S expressed in wt %, wherein formula (I).Type: ApplicationFiled: September 23, 2016Publication date: September 20, 2018Inventors: Liang ZHU, Randy DE PALMA, Hyo Sun AHN, Sung Jun CHO, Daniël NELIS, Kris DRIESEN
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Publication number: 20170309894Abstract: 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>0, y>0, 0?z?0.35, 0?n?0.02 and x+y+z+n=1, the method comprising the steps of: —providing a feed solution comprising Ni-, Mn-, Co- and A-ions, and having a molar metal content M? feed, —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, —providing a slurry comprising seeds comprising M?-ions and having a molar metal content M? seeds, wherein M?=Nix?Mny?Coz?A?n?, A? being a dopant, with 0?x??1, 0?y??1, 0?z??1, 0?n??1 and x?+y?+z?+n?=1, and wherein the molar ratio M? seeds/M? feed is between 0.001 and 0.Type: ApplicationFiled: September 30, 2015Publication date: October 26, 2017Inventors: Jin HU, HeonPyo HONG, Jens PAULSEN, JinDoo OH, Daniël NELIS, Eric ROBERT
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Publication number: 20160141610Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Inventors: Jean SCOYER, Stijn PUT, Daniel NELIS, Kris DRIESEN
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Publication number: 20130136986Abstract: A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiOx, with 0<x<2, the surface layer having an average thickness between 0.5 nm and 10 nm, and wherein the powder has a total oxygen content equal or less than 3% by weight at room temperature. The method for making the powder comprises a step where a Si precursor is vaporized in a gas stream at high temperature, after which the gas stream is quenched to obtain Si particles, and the Si particles are quenched at low temperature in an oxygen containing gas.Type: ApplicationFiled: June 22, 2011Publication date: May 30, 2013Inventors: Jean Scoyer, Stijn Put, Daniël Nelis, Kris Driesen
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Publication number: 20110045745Abstract: The present invention relates to doped ceria (CeO2) abrasive particles, having an essentially octahedral morphology. Such abrasives are used in water-based slurries for Chemical Mechanical Polishing (CMP) of subrates such as silicon wafers. The invention more particularly concerns yttrium-doped ceria particles having a specific surface area of 10 to 120 m2/g, characterized in that at least 95 wt %, preferably at least 99 wt %, of the particles are mono-crystalline and in that the particles' surfaces consist of more than 70%, preferably of more than 80%, of planes parallel to {111} planes. A novel gas phase process for synthesizing this product is also disclosed, comprising the steps of providing a hot gas stream, —and, introducing into said gas stream a cerium-bearing reactant, a dopant-bearing reactant, and an oxygen-bearing reactant, —the temperature of said gas stream being chosen so as to atomize said reactant, the reactant being selected so as to form, upon cooling, doped ceria particles.Type: ApplicationFiled: February 3, 2009Publication date: February 24, 2011Applicant: UMICOREInventors: Joke De Messemaeker, Stijn Put, Dirk Van-Genechten, Yves Van Rompaey, Daniël Nelis, Yvan Strauven, Gustaaf Van Tendeloo