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公开(公告)号：US20240097115A1
公开(公告)日：2024-03-21
申请号：US18452893
申请日：2023-08-21
发明人： Bor Z. Jang
CPC分类号： H01M4/366 , H01M4/0404 , H01M4/0466 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/622 , H01M10/0525 , H01M2004/021
摘要： Provided is method of producing graphene-embraced anode particulates for a lithium battery, the method comprising: (A) providing anode active material-decorated carbon or graphite particles, wherein the carbon or graphite particles have a diameter or thickness from 500 nm to 50 μm and the anode active material, in a form of particles or coating having a diameter or thickness from 0.5 nm to 2 μm, is bonded to surfaces of the carbon or graphite particles; and (B) embracing the anode active material-decorated carbon or graphite particles with a shell comprising multiple graphene sheets to produce the graphene-embraced anode particulates.
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2.发明公开公开(公告)号：US20240317593A1
公开(公告)日：2024-09-26
申请号：US18188889
申请日：2023-03-23
发明人： Bor Z. Jang
IPC分类号： C01B33/18 , H01M10/0525 , H01M50/46
CPC分类号： C01B33/18 , H01M10/0525 , H01M50/46 , C01P2004/80
摘要： A method of producing multiple particles of silicon oxide SiOx, including (a) preparing a plurality of silicon alloy particles MySi, wherein M is a metal or semi-metal element present on a surface or in the interior of a silicon particle; (b) heating the silicon alloy particles to a first temperature to form a plurality of composite particles, wherein a composite particle comprises a layer of silicon dioxide, SiO2, at least partially covering or encapsulating an underlying silicon alloy particle; (c) heating the composite particles to a second temperature under a vacuum or protective inert atmosphere, allowing the silicon dioxide to react with the underlying silicon alloy to form substantially silicon oxide having M dispersed therein and vaporizing the silicon oxide; and (d) cooling the silicon oxide vapor to form solid silicon oxide and using mechanical means to make the solid silicon oxide into multiple particles of silicon oxide.
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3.发明公开公开(公告)号：US20240363867A1
公开(公告)日：2024-10-31
申请号：US18529597
申请日：2023-12-05
发明人： Mingrui Liu , Hao-Hsun Chang , Bor Z. Jang
IPC分类号： H01M4/62 , H01M4/02 , H01M4/131 , H01M4/1391 , H01M4/505 , H01M4/525 , H01M10/0525
CPC分类号： H01M4/622 , H01M4/131 , H01M4/1391 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
摘要： Provided is a composite particulate for use in a lithium battery cathode, the composite particulate comprising one or a plurality of particles of a cathode active material encapsulated by or embedded in an electrically and/or ionically conducting polymer gel network, wherein the cathode active material is selected from the group of lithium nickel cobalt metal oxides having a general formula LixNiyCozMwO2, where M is selected from the group consisting of aluminum (Al), titanium (Ti), tungsten (W), chromium (Cr), molybdenum (Mo), magnesium (Mg), beryllium (Be), calcium (Ca), tantalum (Ta), silicon (Si), and combinations thereof and x ranges from 0 to 1.2, the sum of y+z+w ranges from 0.8 to 1.2, w ranges from 0 to 0.5, y and z are both greater than zero, and the ratio z/y ranges from 0 to 0.5.
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4.发明公开公开(公告)号：US20240347698A1
公开(公告)日：2024-10-17
申请号：US18300430
申请日：2023-04-14
发明人： Bor Z. Jang
CPC分类号： H01M4/364 , H01M4/0471 , H01M4/48 , H01M4/583 , H01M4/624 , H01M10/0525 , H01M2004/021 , H01M2004/027
摘要： A porous carbon/silicon oxide composite comprising: (A) a porous carbon structure host having pores; (B) a silicon oxide SiOx residing in a pore, where 0
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5.发明公开公开(公告)号：US20240290947A1
公开(公告)日：2024-08-29
申请号：US18171505
申请日：2023-02-20
发明人： Bor Z. Jang
IPC分类号： H01M4/36 , C01B32/19 , C01B32/196 , C01B32/21 , H01M4/133 , H01M4/134 , H01M4/38 , H01M4/587 , H01M4/62 , H01M10/0525
CPC分类号： H01M4/364 , C01B32/19 , C01B32/196 , C01B32/21 , H01M4/133 , H01M4/134 , H01M4/366 , H01M4/386 , H01M4/387 , H01M4/587 , H01M4/62 , H01M10/0525 , C01B2204/22 , H01M2004/021 , H01M2004/027
摘要： A process for producing a solid powder mass of multiple individual Si-containing porous particulates, comprising (a) providing a solid powder mass comprising multiple porous host particles having a volume fraction of pores from 5% to 99.9%, wherein the porous host particles are selected from carbonaceous, graphitic, graphene, or metallic particles; (b) introducing a reactive liquid or solution into pores of the porous particles wherein the reactive liquid or solution comprises silane-type species selected from cyclohexasilane, hexasilane, cyclopentasilane, neo-pentasilane, tectrasilane, trisilane, disilane, monosilane, a chemical derivative thereof, or a combination thereof; and (c) exposing the silane-type species to heat, ultra-violet light, laser beam, high-energy radiation (e.g., Gamma radiation, X-ray, electron beam), or a combination thereof to chemically convert the silane-type species into Si particles residing in the pores or Si coating deposited on pore walls to obtain the solid powder mass of separate multiple Si-containing porous particulates.
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