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公开(公告)号：US11276852B2
公开(公告)日：2022-03-15
申请号：US16166536
申请日：2018-10-22
发明人： Bor Z. Jang
IPC分类号： H01M4/36 , H01M10/052 , H01M4/38
摘要： Provided is a lithium metal secondary battery comprising a cathode, an anode, and a non-solid state electrolyte without a porous separator disposed between the cathode and the anode, wherein the anode comprises: (a) an anode active material layer containing a layer of lithium or lithium alloy, in a form of a foil, coating, or multiple particles aggregated together, as an anode active material; and (b) an anode-protecting layer in physical contact with the anode active material layer, having a thickness from 1 nm to 100 μm and comprising an elastomer having a fully recoverable tensile elastic strain from 2% to 1,000% and a lithium ion conductivity from 10−8 S/cm to 5×10−2 S/cm when measure at room temperature; wherein the lithium metal secondary battery does not include a lithium-sulfur battery or a lithium-selenium battery.
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公开(公告)号：US11267711B2
公开(公告)日：2022-03-08
申请号：US16361748
申请日：2019-03-22
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： C01B32/205 , C04B35/524 , C01B32/184
摘要： Provided is a method of producing a graphitic film, comprising: (a) providing a suspension of aromatic molecules selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, a halogenated variant thereof, or a combination thereof, dispersed or dissolved in a liquid medium; (b) dispensing and depositing the suspension onto a surface of a supporting substrate to form a wet layer of aromatic molecules, wherein the procedure includes subjecting the suspension to an orientation-inducing stress or strain; (c) partially or completely removing the liquid medium; and (d) heat treating the resulting dried layer at a first temperature selected from 25° C. to 3,200° C. so that the aromatic molecules are merged or fused into larger aromatic molecules to form the graphitic film having graphene domains or graphite crystals, wherein the larger aromatic molecules or graphene planes in the graphene domains or graphite crystals are substantially parallel to each other.
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公开(公告)号：US11186729B2
公开(公告)日：2021-11-30
申请号：US16030105
申请日：2018-07-09
发明人： Yi-jun Lin , Aruna Zhamu , Bor Z. Jang
IPC分类号： C09D7/63 , C09D175/04 , C09D5/24 , C09D175/02 , C09D175/12 , C09D163/00 , C09D167/08 , C23F11/04 , C08G71/04 , C08K11/00 , C09D5/08 , C09D5/10 , C08K3/04 , C08K3/08 , C08K3/32
摘要： Provided is a humic acid-based coating suspension comprising humic acid, particles of an anti-corrosive pigment or sacrificial metal, and a binder resin dissolved or dispersed in a liquid medium, wherein the humic acid has a weight fraction from 0.1% to 50% based on the total coating suspension weight excluding the liquid medium. Also provided is an object or structure coated at least in part with such a coating.
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公开(公告)号：US11038205B2
公开(公告)日：2021-06-15
申请号：US15648016
申请日：2017-07-12
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M4/62 , H01M4/13 , H01M10/0569 , H01M4/36 , H01M10/054 , H01M10/0568 , H01M4/60 , H01M10/0565 , H01M4/02
摘要： A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from aluminum (Al), gallium (Ga), indium (In), tin (Sn), lead (Pb), or bismuth (Bi), and at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with the electrolyte. This energy storage device has a power density significantly higher than that of a lithium-ion battery and an energy density dramatically higher than that of a supercapacitor.
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5.发明授权公开(公告)号：US11037738B2
公开(公告)日：2021-06-15
申请号：US15895456
申请日：2018-02-13
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： H01G11/46 , H01G11/36 , H01G11/50 , H01G11/86 , H01G11/06 , H01G11/24 , H01M4/36 , H01M4/587 , H01M10/0525 , H01M4/485
摘要： A graphene-enabled hybrid particulate for use as an anode active material in a hybrid supercapacitor or lithium-ion capacitor, wherein the hybrid particulate is formed of a single or a plurality of graphene sheets and a single or a plurality of fine primary particles of a niobium-containing composite metal oxide, having a size from 1 nm to 10 μm, and the graphene sheets and the primary particles are mutually bonded or agglomerated into the hybrid particulate containing an exterior graphene sheet or multiple exterior graphene sheets embracing the primary particles, and wherein the hybrid particulate has an electrical conductivity no less than 10−4 S/cm and said graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the niobium-containing composite metal oxide combined.
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公开(公告)号：US11005094B2
公开(公告)日：2021-05-11
申请号：US15914213
申请日：2018-03-07
发明人： Baofei Pan , Hui He , Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M4/00 , H01M4/36 , H01M4/62 , H01M10/0525 , H01M4/38 , H01M4/42 , H01M4/44 , H01M4/46 , H01M4/48 , H01M4/485 , H01M4/505 , H01M4/58 , H01M4/02
摘要： Provided is a lithium battery anode electrode comprising multiple particulates of an anode active material, wherein at least a particulate is composed of one or a plurality of particles of an anode active material being encapsulated by a thin layer of inorganic filler-reinforced elastomer having from 0.01% to 50% by weight of an inorganic filler dispersed in an elastomeric matrix material based on the total weight of the inorganic filler-reinforced elastomer, wherein the encapsulating thin layer of inorganic filler-reinforced elastomer has a thickness from 1 nm to 10 μm, a fully recoverable tensile strain from 2% to 500%, and a lithium ion conductivity from 10−7 to S/cm to 5×10−2 S/cm and the inorganic filler has a lithium intercalation potential from 1.1 V to 4.5 V (preferably 1.2-2.5 V) versus Li/Li+. The anode active material is preferably selected from Si, Ge, Sn, SnO2, SiOx, Co3O4, Mn3O4, etc.
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公开(公告)号：US20210111391A1
公开(公告)日：2021-04-15
申请号：US16598584
申请日：2019-10-10
发明人： Evan House , Aruna Zhamu , Bor Z. Jang
摘要： Provided is a bi-polar electrode for a battery, the electrode comprising: (a) a current collector comprising a conductive material foil (e.g. metal foil) having a thickness from 10 nm to 100 μm and two opposed, parallel primary surfaces, wherein one or both of the primary surfaces is coated with a layer of exfoliated graphite or expanded graphite material having a thickness from 10 nm to 50 μm; and (b) a negative electrode layer and a positive electrode layer respectively disposed on the two sides of the current collector, each in physical contact with the layer of exfoliated graphite or expanded graphite material or directly with a primary surface of the conductive material foil (if not coated with a exfoliated or expanded graphite layer). Also provided is a battery comprising multiple (e.g. 2-300) bipolar electrodes internally connected in series. There can be multiple bi-polar electrodes that are connected in parallel.
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8.发明授权公开(公告)号：US10971725B2
公开(公告)日：2021-04-06
申请号：US16256321
申请日：2019-01-24
发明人： Bor Z. Jang
IPC分类号： H01M4/40 , H01M4/134 , H01M4/66 , H01M4/62 , H01M4/70 , H01M10/052 , H01M50/463
摘要： Provided is a lithium metal secondary battery comprising a cathode, an anode, an electrolyte-separator assembly disposed between the cathode and the anode, wherein the anode comprises: (a) an anode active material layer containing a layer of lithium or lithium alloy optionally supported by an anode current collector; and (b) an anode-protecting layer in physical contact with the anode active material layer and in ionic contact with the electrolyte-separator assembly, having a thickness from 10 nm to 500 μm and comprising an elastic polymer foam having a fully recoverable elastic compressive strain from 2% to 500% and pores having a pore volume fraction from 5% to 95% (most preferably 50-95%); wherein preferably the pores are interconnected.
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公开(公告)号：US10971722B2
公开(公告)日：2021-04-06
申请号：US15910471
申请日：2018-03-02
发明人： Aruna Zhamu , Bor Z. Jang
IPC分类号： H01M4/36 , H01M4/04 , H01M4/13 , H01M4/38 , H01M4/48 , H01M4/52 , H01M4/58 , H01M4/60 , H01M4/62 , H01M10/05 , H01M4/133 , H01M4/134 , H01M4/137 , H01M4/587 , H01M4/583 , H01M10/052 , H01M10/0525 , H01M4/139 , H01M4/1393 , H01M4/1395 , H01M4/1399 , H01M4/02
摘要： A method of producing a powder mass for a lithium battery, comprising: (a) mixing graphene sheets and a sulfonated elastomer or its precursor in a liquid medium or solvent to form a suspension; (b) dispersing a plurality of particles of an anode active material in the suspension to form a slurry; and (c) dispensing the slurry and removing the solvent and/or polymerizing or curing the precursor to form the powder mass comprising multiple particulates, wherein at least one of the particulates is composed of one or a plurality of the particles encapsulated by a thin layer of a sulfonated elastomer/graphene composite having a thickness from 1 nm to 10 μm, a fully recoverable tensile strain from 2% to 500%, a lithium ion conductivity from 10−7 S/cm to 5×10−2 S/cm and an electrical conductivity from 10−7 S/cm to 100 S/cm.
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公开(公告)号：US10953380B1
公开(公告)日：2021-03-23
申请号：US16658669
申请日：2019-10-21
发明人： Yi-jun Lin , Hsuan-Wen Lee , Aruna Zhamu , Bor Z. Jang
IPC分类号： B01J19/18 , C01B32/23 , C01B32/225
摘要： Provided is a process for manufacturing 2D inorganic compound platelets, the process comprising (a) preparing a first stock containing a 3D layered inorganic compound material dispersed in a liquid medium, (h) injecting the first stock into a continuous reactor having a vortex flow, (c) operating the continuous reactor to form a reaction product suspension containing 2D inorganic compound platelets dispersed in the liquid medium, and (d) separating and recovering said 2D inorganic compound platelets from said product suspension. The product suspension may be directed to flow back to the continuous director for further processing for at least another pass through the reactor, prior to step (d). The continuous reactor is preferably a Couette-Taylor reactor.
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