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    RECYCLING AND UPCYCLING OF NICKEL-BASED LITHIUM CATHODE MATERIALS
    1.
    发明公开
    RECYCLING AND UPCYCLING OF NICKEL-BASED LITHIUM CATHODE MATERIALS 审中-公开

    公开(公告)号：US20230268574A1

    公开(公告)日：2023-08-24

    申请号：US18112646

    申请日：2023-02-22

    Applicant: UT-Battelle, LLC

    Inventor： Sheng Dai ,  Huimin Luo ,  Bishnu P. Thapaliya ,  Tao Wang

    IPC: H01M10/54 ,  H01M10/052 ,  H01M4/58 ,  H01M4/525 ,  H01M4/04

    CPC classification number: H01M10/54 ,  H01M10/052 ,  H01M4/58 ,  H01M4/525 ,  H01M4/0471 ,  H01M2004/021

    Abstract: A method for processing spent nickel-based cathode material useful in lithium-based batteries, the method comprising: (i) producing an initial mixture containing the spent nickel-based cathode material and a molten salt system comprising cations and anions, wherein the cations comprise lithium cations; (ii) heating the initial mixture to a temperature of 700° C. to 900° C. for at least 1 hour to produce a relithiated cathode material; and (iii) washing the relithiated cathode material to remove any residual salt. In a further method, the cations comprise nickel and lithium cations and the anions comprise chloride or bromide anion in combination with at least one of nitrate, sulfate, and carbonate anions in further combination with hydroxide anion, wherein the method results in upcycling of the nickel-based cathode material to produce a version of said relithiated cathode material having a greater nickel content.

    Nanoconfined electrolytes and their use in batteries
    2.
    发明授权
    Nanoconfined electrolytes and their use in batteries 有权

    公开(公告)号：US11605832B2

    公开(公告)日：2023-03-14

    申请号：US17023777

    申请日：2020-09-17

    Applicant: UT-Battelle, LLC

    Inventor： Sheng Dai ,  Jinshui Zhang ,  Xiao-Guang Sun

    IPC: H01M10/056 ,  H01M10/052 ,  H01M10/054

    Abstract: A nanoconfined metal-containing electrolyte comprising a layer of enclosed nanostructures in which each enclosed nanostructure contains a liquid metal-containing electrolyte, wherein said enclosed nanostructures are in physical contact with each other. Metal-ion batteries containing the nanoconfined electrolyte in contact with an anode and cathode of the battery are also described. Methods for producing the nanoconfined electrolyte are also described.

    Methods for liquid extraction of rare earth metals using ionic liquids
    3.
    发明授权
    Methods for liquid extraction of rare earth metals using ionic liquids 有权

    公开(公告)号：US10689727B2

    公开(公告)日：2020-06-23

    申请号：US15135753

    申请日：2016-04-22

    Applicant: UT-Battelle, LLC

    Inventor： John William Freiderich ,  Huimin Luo ,  Bruce A. Moyer ,  Sheng Dai

    IPC: C22B3/00 ,  C22B3/28 ,  C22B59/00

    Abstract: A method for extracting a rare earth element from a rare earth-containing substance, the method comprising mixing the rare earth-containing substance with a protic ionic liquid, such as: wherein R1 is selected from hydrogen atom and hydrocarbon groups containing 1 to 6 carbon atoms; R2 and R3 are independently selected from hydrocarbon groups containing 1 to 12 carbon atoms; and X− is an anionic species; to produce a composition of the formula (RE)(amide)yXz at least partially dissolved in the protic ionic liquid, wherein RE is at least one rare earth element having an atomic number selected from 39, 57-71, and 90-103; y is 2-6; z is a number that charge balances the total positive charge of RE; and the amide is the conjugate base of the cationic portion of the protic ionic liquid of Formula (1) and has the following formula:

    ELECTRON CONDUCTIVE POLYMER COMPOSITES AND THEIR USE AS ELECTRODE MATERIALS
    4.
    发明申请
    ELECTRON CONDUCTIVE POLYMER COMPOSITES AND THEIR USE AS ELECTRODE MATERIALS 审中-公开

    公开(公告)号：US20200176762A1

    公开(公告)日：2020-06-04

    申请号：US16207395

    申请日：2018-12-03

    Applicant: UT-Battelle, LLC

    Inventor： Xiao-Guang Sun ,  Sheng Dai ,  Hailong Lyu

    IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/60 ,  H01G11/48 ,  H01G11/58 ,  C08L79/08

    Abstract: A composite material comprising particles containing (i) a core comprising an organic polymer material that is ion-permeable, not electron conductive, and possesses reversible electrochemical activity (e.g., aromatic polyimide, polyquinone, and radical-containing polymers), and (ii) an electron conductive polymer (e.g., polythiophene, poly(3,4-ethylenedioxythiophene), polypyrrole, polyaniline, polyacetylene, or poly(p-phenylene vinylene), alkyl-substituted derivatives thereof, hydrophilized derivatives thereof, or copolymer thereof) coated onto and encapsulating the core. Also described herein are batteries (e.g., lithium-ion) in which at least the cathode contains the composite material described above. Also described herein are capacitors in which at least one electrode contains the composite material described above.

    Carbon composition with hierarchical porosity, and methods of preparation
    5.
    发明授权
    Carbon composition with hierarchical porosity, and methods of preparation 有权

    公开(公告)号：US10023480B2

    公开(公告)日：2018-07-17

    申请号：US14496227

    申请日：2014-09-25

    Applicant: UT-BATTELLE, LLC

    Inventor： Richard T. Mayes ,  Sheng Dai

    IPC: C02F1/46 ,  C02F1/469 ,  H01M4/62 ,  B82Y30/00 ,  C01B32/05 ,  C01B32/20 ,  C02F1/461 ,  H01G11/24 ,  H01G11/42

    Abstract: A method for fabricating a porous carbon material possessing a hierarchical porosity, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic component, (iii) a dione component in which carbonyl groups are adjacent, and (iv) an acidic component, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a carbon material possessing a hierarchical porosity comprised of mesopores and macropores. Also described are the resulting hierarchical porous carbon material, a capacitive deionization device in which the porous carbon material is incorporated, as well as methods for desalinating water by use of said capacitive deionization device.

    Ionic liquid-functionalized mesoporous sorbents and their use in the capture of polluting gases
    9.
    发明授权
    Ionic liquid-functionalized mesoporous sorbents and their use in the capture of polluting gases 有权
    离子液体官能化的介孔吸附剂及其在捕获污染气体中的应用

    公开(公告)号：US09233339B2

    公开(公告)日：2016-01-12

    申请号：US13868600

    申请日：2013-04-23

    Applicant: UT-Battelle, LLC ,  Georgia Tech Research Corporation

    Inventor： Jong Suk Lee ,  William J. Koros ,  Nitesh Bhuwania ,  Patrick C. Hillesheim ,  Sheng Dai

    IPC: C09K3/00 ,  B01D53/50 ,  B01D53/62 ,  B01D63/02 ,  B01J20/22 ,  B01D53/02 ,  B01J20/28 ,  B01J20/32

    CPC classification number: B01D53/62 ,  B01D53/02 ,  B01D53/508 ,  B01D2252/30 ,  B01D2257/302 ,  B01D2257/502 ,  B01D2257/504 ,  B01J20/223 ,  B01J20/28028 ,  B01J20/28083 ,  B01J20/3204 ,  B01J20/3263 ,  Y02C10/04 ,  Y02C10/08 ,  Y10T428/2927 ,  Y10T428/2991

    Abstract: A composite structure for capturing a gaseous electrophilic species, the composite structure comprising mesoporous refractory sorbent particles on which an ionic liquid is covalently attached, wherein said ionic liquid includes an accessible functional group that is capable of binding to said gaseous electrophilic species. In particular embodiments, the mesoporous sorbent particles are contained within refractory hollow fibers. Also described is a method for capturing a gaseous electrophilic species by use of the above-described composite structure, wherein the gaseous electrophilic species is contacted with the composite structure. In particular embodiments thereof, cooling water is passed through the refractory hollow fibers containing the IL-functionalized sorbent particles in order to facilitate capture of the gaseous electrophilic species, and then steam is passed through the refractory hollow fibers to facilitate release of the gaseous electrophilic species such that the composite structure can be re-used to capture additional gas.

    Abstract translation: 一种用于捕获气态亲电子物质的复合结构，所述复合结构包括介孔耐火吸附剂颗粒，其上共价连接离子液体，其中所述离子液体包括能够结合所述气态亲电子物质的可接近官能团。 在具体实施方案中，介孔吸附剂颗粒包含在耐火中空纤维内。 还描述了通过使用上述复合结构捕获气态亲电子物质的方法，其中气态亲电子物质与复合结构物接触。 在其具体实施方案中，使冷却水通过含有IL官能化的吸附剂颗粒的耐火中空纤维，以便于气态亲电子物质的捕获，然后使蒸汽通过耐火中空纤维以促进气态亲电子物质的释放 使得复合结构可以重新用于捕获额外的气体。

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