公开(公告)号：US09263769B2

公开(公告)日：2016-02-16

申请号：US14266052

申请日：2014-04-30

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Gregory K. Krumdick ,  Krzysztof Pupek ,  Trevor L. Dzwiniel

IPC: C07F7/18 ,  H01M10/0569

CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M2300/0028

Abstract: The invention provides a method for producing electrolyte solvent, the method comprising reacting a glycol with a disilazane in the presence of a catalyst for a time and at a temperature to silylate the glycol, separating the catalyst from the silylated glycol, removing unreacted silazane; and purifying the silylated glycol.

Abstract translation: 本发明提供一种生产电解质溶剂的方法，该方法包括使二醇与二硅氮烷在催化剂存在下反应一段时间并在一定温度下使乙二醇甲硅烷基化，将催化剂与甲硅烷基化的二醇分离，除去未反应的硅氮烷; 并纯化甲硅烷基化的二醇。

公开(公告)号：US11923501B2

公开(公告)日：2024-03-05

申请号：US17490956

申请日：2021-09-30

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Yuepeng Zhang ,  Sanja Tepavcevic ,  Devon J. Powers ,  Peter Zapol ,  John N. Hryn ,  Gregory K. Krumdick ,  Ozgenur Kahvecioglu ,  Krzystof Z. Pupek ,  Michael John Counihan

IPC: H01M10/056 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525

CPC classification number: H01M10/056 ,  H01M2004/021 ,  H01M2004/028 ,  H01M4/505 ,  H01M4/525 ,  H01M2300/0077 ,  H01M2300/0082 ,  H01M2300/0091

Abstract: A solid-state electrolyte for a multilayer solid-state electrochemical cell is described herein. The electrolyte comprises a lithium electrolyte salt and nanofibers of a cubic phase lithium lanthanum zirconium oxide (c-LLZO), and a polymer interspersed with the nanofibers and electrolyte salt. Electrochemical cells comprising the solid-state electrolyte, and solid-state cathodes comprising the nanofibers of c-LLZO are also described herein.

公开(公告)号：US11628427B2

公开(公告)日：2023-04-18

申请号：US17161114

申请日：2021-01-28

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Rongyue Wang ,  Vojislav Stamenkovic ,  Gregory K. Krumdick ,  Krzysztof Pupek

IPC: B01J23/89 ,  B01J35/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/14 ,  B01J37/34 ,  B01J23/42 ,  B01J37/00

Abstract: A process for synthesis of PtNi high surface area core/shell particles. The processing including formation of PtNi nanoparticles, exposure of the PtNi nanoparticles to oxygen to form a nickel oxide coating on the nanoparticles at the same time the segregation of Ni to surface induces a Pt-skin with PtNi core structure, removal of the nickel oxide coating to form PtNi core/Pt shell (or Pt-skin) structure.

公开(公告)号：US20200099045A1

公开(公告)日：2020-03-26

申请号：US16140234

申请日：2018-09-24

Applicant: UCHICAGO ARGONNE, LLC

Inventor： YoungHo Shin ,  Gregory K. Krumdick

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/04

Abstract: The invention provides a cathode active material having a discrete change in concentrations of a first base region and a second pulse region. Also provided is a method for preparing a cathode active material, the method having the steps: supplying chelating agent, aqueous basic solution and a first aqueous metal salt solution to a reactor to create a base region; supplying a second aqueous metal-salt solution to a reactor to form a pulse region, wherein the second aqueous metal-salt solution is intermittently or continuously added during or after the creation of the base region; thermally treating the base region and the pulse region to create active metal precursors; mixing the precursors with lithium salt to produce a mixture; and thermally treating the mixture.

公开(公告)号：US20150318574A1

公开(公告)日：2015-11-05

申请号：US14266052

申请日：2014-04-30

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Gregory K. Krumdick ,  Krzysztof Pupek ,  Trevor L. Dzwiniel

IPC: H01M10/0569

CPC classification number: H01M10/0569 ,  H01M10/052 ,  H01M2300/0028

Abstract: The invention provides a method for producing electrolyte solvent, the method comprising reacting a glycol with a disilazane in the presence of a catalyst for a time and at a temperature to silylate the glycol, separating the catalyst from the silylated glycol, removing unreacted silazane; and purifying the silylated glycol.

Abstract translation: 本发明提供一种生产电解质溶剂的方法，该方法包括使二醇与二硅氮烷在催化剂存在下反应一段时间并在一定温度下使乙二醇甲硅烷基化，将催化剂与甲硅烷基化的二醇分离，除去未反应的硅氮烷; 并纯化甲硅烷基化的二醇。

公开(公告)号：US20210252487A1

公开(公告)日：2021-08-19

申请号：US17161114

申请日：2021-01-28

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Rongyue Wang ,  Vojislav Stamenkovic ,  Gregory K. Krumdick ,  Krzysztof Pupek

IPC: B01J23/89 ,  B01J23/42 ,  B01J35/00 ,  B01J37/04 ,  B01J37/00 ,  B01J37/14 ,  B01J37/06 ,  B01J37/34 ,  B01J37/03

Abstract: A process for synthesis of PtNi high surface area core/shell particles. The processing including formation of PtNi nanoparticles, exposure of the PtNi nanoparticles to oxygen to form a nickel oxide coating on the nanoparticles at the same time the segregation of Ni to surface induces a Pt-skin with PtNi core structure, removal of the nickel oxide coating to form PtNi core/Pt shell (or Pt-skin) structure.

公开(公告)号：US20190372128A1

公开(公告)日：2019-12-05

申请号：US15996297

申请日：2018-06-01

Applicant: UCHICAGO ARGONNE LLC

Inventor： Vojislav Stamenkovic ,  Gregory K. Krumdick ,  Rongyue Wang ,  Nenad Markovic ,  Krzysztof Z. Pupek

IPC: H01M4/86 ,  H01M4/92

Abstract: A method for scaled-up synthesis of PtNi nanoparticles. Synthesizing a Pt nanoparticle catalyst comprises the steps of: synthesizing PtNi nanoparticles, isolating PtNi/substrate nanoparticles, acid leaching the PtNi/substrate, and annealing the leached PtNi/substrate nanoparticles, and forming a Pt-skin on the PtNi/substrate nanoparticles.

公开(公告)号：US20190326591A1

公开(公告)日：2019-10-24

申请号：US15960178

申请日：2018-04-23

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Ozgenur Kahvecioglu Feridun ,  Gregory K. Krumdick

IPC: H01M4/36 ,  C01G53/00 ,  C01D15/08 ,  H01M4/58 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

Abstract: A method for producing water resistant cathodes is discussed. The method uses mixing cathode powder with solid carbon dioxide to create a mixture and heating the mixture to a temperature. The heating occurs for a time sufficient to cause lithium carbonate coatings to form on the powder. A method for coating lithium-containing cathode surfaces is also discussed. This method uses simultaneously sublimating solid CO2 and condensing atmospheric water vapor onto surfaces. Afterwards allowing the lithium to react with the sublimated CO2 for a time sufficient to create a lithium carbonate film on the surface.

公开(公告)号：US11999630B2

公开(公告)日：2024-06-04

申请号：US16901998

申请日：2020-06-15

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Joseph A. Libera ,  Yujia Liang ,  Trevor L. Dzwiniel ,  Krzysztof Pupek ,  Gregory K. Krumdick ,  Stephen Cotty

IPC: C01G25/02 ,  B01J2/06 ,  C01G25/00

CPC classification number: C01G25/006 ,  B01J2/06 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2004/02 ,  C01P2004/03

Abstract: A process for forming cubic LLZO through the use of atomic mixing of metal salts used in an aerosol process. The cubic LLZO is formed at temperatures below 1000° C.

公开(公告)号：US11349118B2

公开(公告)日：2022-05-31

申请号：US16140234

申请日：2018-09-24

Applicant: UCHICAGO ARGONNE, LLC

Inventor： YoungHo Shin ,  Gregory K. Krumdick

IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/485 ,  H01M4/02

Abstract: The invention provides a cathode active material having a discrete change in concentrations of a first base region and a second pulse region. Also provided is a method for preparing a cathode active material, the method having the steps: supplying chelating agent, aqueous basic solution and a first aqueous metal salt solution to a reactor to create a base region; supplying a second aqueous metal-salt solution to a reactor to form a pulse region, wherein the second aqueous metal-salt solution is intermittently or continuously added during or after the creation of the base region; thermally treating the base region and the pulse region to create active metal precursors; mixing the precursors with lithium salt to produce a mixture; and thermally treating the mixture.