公开(公告)号：US10673063B2

公开(公告)日：2020-06-02

申请号：US15710952

申请日：2017-09-21

申请人： Nanotek Instruments, Inc.

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M4/131 ,  H01M4/134 ,  H01M4/02 ,  C01D13/00 ,  C01D15/00 ,  C01G51/00 ,  C01G51/04 ,  C01G9/00 ,  C01G9/02 ,  C01B33/00 ,  C01G19/00 ,  C01G19/02

摘要： Provided is a process for producing prelithiated particles of an anode active material for a lithium battery. The process comprises: (a) providing a lithiating chamber having at least one inlet and at least one outlet; (b) feeding a plurality of particles of an anode active material, lithium metal particles, and an electrolyte solution (containing a lithium salt dissolved in a liquid solvent) into the lithiating chamber through at least one inlet, concurrently or sequentially, to form a reacting mixture; (c) moving this reacting mixture toward the outlet at a rate sufficient for inserting a desired amount of lithium into the anode active material particles to form a slurry of prelithiated particles dispersed in the electrolyte solution; and (d) discharging the slurry out of the lithiating chamber through the at least one outlet.

公开(公告)号：US10526716B2

公开(公告)日：2020-01-07

申请号：US15101639

申请日：2014-12-04

申请人： Technische Universitaet Berlin

发明人： Michael Lublow ,  Anna Fischer ,  Matthias Driess ,  Thomas Schedel-Niedrig ,  Marcel-Philip Luecke

IPC分类号： C25D9/08 ,  C25D5/50 ,  C25D7/12 ,  C25D3/66 ,  C25D5/34 ,  C25D5/00 ,  C01G49/10 ,  C01G51/08 ,  C01G53/08 ,  C01G3/04 ,  C25B11/04 ,  C25B1/00 ,  C01G49/02 ,  C01G51/04 ,  C01G53/00 ,  C01G53/04 ,  C01G3/02 ,  C01B33/20 ,  C01G51/00

摘要： The invention relates to a method for producing a metal chalcogenide thin film electrode, comprising the steps: (a) contacting a metal or metal oxide with an elementary halogen in a non-aqueous solvent, producing a metal halide compound in the solution, (b) applying a negative electric voltage to an electrically conducting or semiconducting substrate which is in contact with the solution from step (a), and (c) during and/or after step (b) contacting the substrate with an elementary chalcogen forming a metal chalcogenide layer on the substrate. The invention also relates to a metal chalcogenide thin film electrode which can be produced by the method and its use as an anode for releasing oxygen during (photo)electrochemical water splitting.

公开(公告)号：US10450244B2

公开(公告)日：2019-10-22

申请号：US15342775

申请日：2016-11-03

申请人： UOP LLC

发明人： Stephen Caskey ,  Vladislav I. Kanazirev ,  Thomas Traynor

IPC分类号： C01B3/56 ,  C07C7/12 ,  B01D53/04 ,  B01D53/46 ,  C01G45/02 ,  C01G49/02 ,  C01G53/04 ,  C01G51/04 ,  B01J20/06 ,  B01J20/30 ,  B01J20/12 ,  B01D53/02 ,  C01B3/50 ,  C01B13/02

摘要： The present subject matter relates generally to a method for the removal of oxygen from hydrogen using a manganese, iron, nickel or cobalt based adsorbent. More specifically, the present subject matter relates to the methods for the removal of oxygen from hydrogen using a manganese based adsorbent without the generation of water or other oxides.

公开(公告)号：US10449607B2

公开(公告)日：2019-10-22

申请号：US15293980

申请日：2016-10-14

申请人： Sherritt International Corporation

发明人： Fu Qin

IPC分类号： B22F9/26 ,  B22F9/24 ,  C01G3/10 ,  C01G51/10 ,  C01G53/10 ,  C01G51/04 ,  C01G53/04 ,  C01G3/02 ,  C22B3/00

摘要： Process to decrease silicon content of metal powder produced by hydrogen reduction from ammoniacal ammonium sulphate solutions containing metal ammine complexes, wherein metal (Me) is Ni, Co, or Cu. The process controls the precipitation of metal hydroxide, which is found to be an effective scavenger for silicon. Silicon is preferentially removed from metal diammine sulphate-containing solutions by precipitating with a small amount of a metal hydroxide, and then separating the silicon-bearing metal hydroxide precipitate from the solution. This solution, from which the silicon impurity has been removed with the metal hydroxide precipitate, can then be reduced in one or more densification cycles with a reducing gas to produce an elemental metal powder having a decreased silicon content. Alternatively, the solution is reduced to produce a low silicon metal powder seed material for the first of the one or more densification cycles.

公开(公告)号：US20190273255A1

公开(公告)日：2019-09-05

申请号：US16343736

申请日：2017-10-20

申请人： AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

发明人： Jackie Y. YING ,  Ayman Amin ABDELHAMID

IPC分类号： H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0525 ,  C01G33/00 ,  C01G23/08 ,  C01G49/02 ,  C01G19/02 ,  C01G53/04 ,  C01G51/04 ,  C01G45/02 ,  C01G53/00 ,  C01G51/00 ,  C01G25/02

摘要： The present invention generally relates to a method for preparing metal oxide nanosheets. In a preferred embodiment, graphene oxide (GO) or graphite oxide is employed as a template or structure directing agent for the formation of the metal oxide nanosheets, wherein the template is mixed with metal oxide precursor to form a metal oxide precursor-bonded template. Subsequently, the metal oxide precursor-bonded template is calcined to form the metal oxide nanosheets. The present invention also relates to a lithium-ion battery anode comprising the metal oxide nanosheets. In a further preferred embodiment, the battery anode may comprising reduced template, which is reduced graphene oxide (rGO) or reduced graphite oxide.

公开(公告)号：US10297823B2

公开(公告)日：2019-05-21

申请号：US15709961

申请日：2017-09-20

申请人： Apple Inc.

发明人： Hongli Dai ,  Huiming Wu ,  Dapeng Wang

IPC分类号： H01M4/525 ,  H01M4/505 ,  H01M2/10 ,  H01M4/1391 ,  H01M10/0525 ,  C01G51/00 ,  C01G51/04 ,  C01G53/00 ,  H01M4/131 ,  H01M4/485 ,  C01D15/02 ,  C01G45/00 ,  G01N23/20

摘要： Mixed-metal oxides and lithiated mixed-metal oxides are disclosed that involve compounds according to, respectively, NixMnyCozMeαOβ and Li1+γNixMnyCozMeαOβ. In these compounds, Me is selected from B, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Fe, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Ag, In, and combinations thereof; 0≤x≤1; 0≤y≤1; 0≤z 0; 0≤α≤0.5; and x+y+α>0. For the mixed-metal oxides, 1≤β≤5. For the lithiated mixed-metal oxides, −0.1≤γ≤1.0 and 1.9≤β≤3. The mixed-metal oxides and the lithiated mixed-metal oxides include particles having an average density greater than or equal to 90% of an ideal crystalline density.

公开(公告)号：US10297821B2

公开(公告)日：2019-05-21

申请号：US15273825

申请日：2016-09-23

申请人： Apple Inc.

发明人： Hongli Dai ,  Christopher Johnson

IPC分类号： H01M4/505 ,  C01G45/00 ,  H01M4/525 ,  C01G45/02 ,  C01G51/04 ,  C01G51/00 ,  C01G53/04 ,  C01G53/00 ,  H01M4/02

摘要： Methods are presented for synthesizing a metal precursor for a cathode-active material. The methods include adding urea to a solution comprising dissolved ions of at least one transition metal selected from Mn, Co, and Ni. The methods also include increasing a pH of the aqueous solution to a threshold pH. The methods additionally include heating the aqueous solution to precipitate a compound that includes the at least one transition metal. Such heating may involve urea decomposition. Methods are also presented that include filtering the compound from the solution and contacting the compound with at least a lithium precursor to produce a reactant charge. In these methods, the reactant charge is calcined to produce the cathode-active material. Other methods are presented.

公开(公告)号：US10246343B2

公开(公告)日：2019-04-02

申请号：US15806183

申请日：2017-11-07

申请人： ROCHER MANGANESE, INC.

发明人： Norman Chow ,  Joey Chung-Yen Jung ,  Anca Mihaela Nacu ,  Douglas Dale Warkentin

IPC分类号： C01G51/06 ,  C01B17/64 ,  C01G51/04 ,  C01G51/00 ,  C01G53/00 ,  C01D5/00 ,  C01D5/18 ,  C01D15/08 ,  C02F103/34 ,  H01M4/02 ,  H01M10/052

摘要： A process for water removal and/or recycling of sodium sulfate and/or sodium dithionate containing liquors derived from processing cobalt resource material essentially free of lithium comprising the steps of precipitation of cobalt as cobaltous carbonate or cobaltous hydroxide followed by removal thereof from the liquor, crystallization of sodium sulfate and sodium dithionate and removal of the crystals, followed by heating of the crystals to anhydrous sodium sulfate, sulphur dioxide and water and then separating the anhydrous sodium sulfate.

公开(公告)号：US20190084839A1

公开(公告)日：2019-03-21

申请号：US16085337

申请日：2017-03-15

申请人： JX NIPPON MINING & METALS CORPORATION

发明人： Junichi ITO ,  Junichi ARAKAWA ,  Takuya YOKOTA ,  Naoki HIGUCHI

IPC分类号： C01G45/00 ,  C01G51/00 ,  C01G51/04 ,  C01G53/00 ,  C01G53/04 ,  C22B3/00

摘要： A method for processing lithium ion battery scrap according to this invention includes a leaching step of leaching lithium ion battery scrap to obtain a leached solution; an aluminum removal step of neutralizing the leached solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the leached solution to obtain a first separated solution; and an iron removal step of adding an oxidizing agent to the first separated solution and adjusting the pH in a range of from 3.0 to 5.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution.

公开(公告)号：US10128494B2

公开(公告)日：2018-11-13

申请号：US15627853

申请日：2017-06-20

申请人： Apple Inc.

发明人： Hongli Dai ,  Christopher S. Johnson ,  Huiming Wu ,  John David Carter

IPC分类号： H01M4/36 ,  C01G53/00 ,  H01M4/525 ,  C01G51/00 ,  H01M10/052 ,  H01M4/505 ,  B01J19/24 ,  B01J19/18 ,  B01J19/00 ,  C01G51/04

摘要： The disclosed embodiments relate to the manufacture of a precursor co-precipitate material for a cathode active material composition. During manufacture of the precursor co-precipitate material, an aqueous solution containing at least one of a manganese sulfate and a cobalt sulfate is formed. Next, a NH4OH solution is added to the aqueous solution to form a particulate solution comprising irregular secondary particles of the precursor co-precipitate material. A constant pH in the range of 10-12 is also maintained in the particulate solution by adding a basic solution to the particulate solution.