公开(公告)号：US20130330611A1

公开(公告)日：2013-12-12

申请号：US13507168

申请日：2012-06-11

申请人： Gourong Chen ,  Yanbo Wang ,  Aruna Zhamu ,  Bor Z. Jang

发明人： Gourong Chen ,  Yanbo Wang ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/60 ,  H01M4/583 ,  H01M4/64 ,  B82Y30/00

CPC分类号： H01M4/137 ,  B82Y30/00 ,  H01M4/1399 ,  H01M4/608 ,  H01M4/625 ,  H01M4/762 ,  H01M10/052 ,  Y02E60/122

摘要： A rechargeable lithium cell comprising: (a) an anode comprising a prelithiated lithium storage material or a combination of a lithium storage material and a lithium ion source; (b) a hybrid cathode active material composed of a meso-porous structure of a carbon, graphite, metal, or conductive polymer and a phthalocyanine compound, wherein the meso-porous structure is in an amount of from 1% to 99% by weight based on the total weight of the meso-porous structure and the phthalocyanine combined, and wherein the meso-porous structure has a pore with a size from 2 nm to 50 nm to accommodate phthalocyanine compound therein; and (c) an electrolyte or electrolyte/separator assembly. This secondary cell exhibits a long cycle life and the best cathode specific capacity and best cell-level specific energy of all rechargeable lithium-ion cells ever reported.

公开(公告)号：US20130309561A1

公开(公告)日：2013-11-21

申请号：US13506778

申请日：2012-05-17

申请人： Guorong Chen ,  Yanbo Wang ,  Aruna Zhamu ,  Bor Z. Jang

发明人： Guorong Chen ,  Yanbo Wang ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/60 ,  H01M10/052 ,  H01M10/056 ,  H01M4/133 ,  H01M4/64 ,  H01M10/0525 ,  B82Y30/00

CPC分类号： H01M4/133 ,  B82Y30/00 ,  H01M4/364 ,  H01M4/587 ,  H01M4/60 ,  H01M10/052 ,  Y02E60/122

摘要： A rechargeable lithium cell comprising: (a) an anode; (b) a cathode comprising a hybrid cathode active material composed of a graphene material and a phthalocyanine compound, wherein the graphene material is in an amount of from 0.1% to 99% by weight based on the total weight of the graphene material and the phthalocyanine compound combined; and (c) a porous separator disposed between the anode and the cathode and electrolyte in ionic contact with the anode and the cathode. This secondary cell exhibits a long cycle life and the best cathode specific capacity and best cell-level specific energy of all rechargeable lithium-ion cells ever reported.

公开(公告)号：US20130260246A1

公开(公告)日：2013-10-03

申请号：US13506168

申请日：2012-04-02

申请人： Guorong Chen ,  Aruna Zhamu ,  Xiging Wang ,  Bor Z. Jang ,  Yanbo Wang ,  Qing Fang

发明人： Guorong Chen ,  Aruna Zhamu ,  Xiging Wang ,  Bor Z. Jang ,  Yanbo Wang ,  Qing Fang

IPC分类号： H01M4/13 ,  H01M4/583 ,  B82Y99/00

CPC分类号： H01M4/133 ,  B82Y30/00 ,  H01M4/587 ,  H01M10/0525

摘要： A lithium-ion cell comprising: (A) a cathode comprising graphene as the cathode active material having a surface area to capture and store lithium thereon and wherein said graphene cathode is meso-porous having a specific surface area greater than 100 m2/g; (B) an anode comprising an anode active material for inserting and extracting lithium, wherein the anode active material is mixed with a conductive additive and/or a resin binder to form a porous electrode structure, or coated onto a current collector in a coating or thin film form; (C) a porous separator disposed between the anode and the cathode; (D) a lithium-containing electrolyte in physical contact with the two electrodes; and (E) a lithium source disposed in at least one of the two electrodes when the cell is made. This new Li-ion cell exhibits an unprecedentedly high energy density.

摘要翻译： 一种锂离子电池，包括：（A）包含石墨烯的阴极，所述阴极活性材料具有在其上捕获和存储锂的表面积，并且其中所述石墨烯阴极是比表面积大于100m 2 / g的介孔 - （B）包括用于插入和提取锂的负极活性材料的阳极，其中所述负极活性材料与导电添加剂和/或树脂粘合剂混合以形成多孔电极结构，或涂覆在涂层中的集电体上，或 薄膜形式; （C）设置在阳极和阴极之间的多孔隔板; （D）与两个电极物理接触的含锂电解质; 和（E）当制造电池时，设置在两个电极中的至少一个电极中的锂源。 这种新的锂离子电池表现出前所未有的高能量密度。

公开(公告)号：US20140242275A1

公开(公告)日：2014-08-28

申请号：US13815349

申请日：2013-02-25

申请人： Aruna Zhamu ,  Mingchao Wang ,  Lucy Fu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Mingchao Wang ,  Lucy Fu ,  Bor Z. Jang

IPC分类号： C01B31/04

CPC分类号： C01B31/0469 ,  C01B31/0423 ,  C01B32/19 ,  C01B32/225

摘要： A process for producing a unitary graphene material, comprising: (a) preparing a graphene oxide (GO) gel having GO molecules dissolved in a fluid medium wherein the GO molecules contain higher than 20% by weight of oxygen; (b) dispensing and depositing a layer of GO gel onto a surface of a substrate to form a layer of deposited GO gel thereon, wherein the dispensing and depositing procedure includes shear-induced thinning; (c) removing the fluid medium from the deposited GO gel to form a GO layer having an inter-plane spacing d002 of 0.4 nm to 1.2 nm as determined by X-ray diffraction; and (d) heat treating the GO layer to form the unitary graphene material at a heat treatment temperature higher than 100° C. to an extent that d002 is decreased to a value of 0.3354 nm to 0.4 nm and the oxygen content is decreased to less than 5% by weight.

摘要翻译： 一种制备单一石墨烯材料的方法，包括：（a）制备具有溶解在其中GO分子含有高于20重量％的氧的流体介质中的GO分子的氧化石墨烯（GO）凝胶; （b）将GO凝胶层分配并沉积到基底表面上以在其上形成沉积的GO凝胶层，其中分配和沉积步骤包括剪切诱导的稀化; （c）通过X射线衍射测定，从沉积的GO凝胶中除去流体介质以形成具有0.4nm至1.2nm的平面间距d002的GO层; 和（d）热处理GO层以在高于100℃的热处理温度下形成单一石墨烯材料，直到d002降低到0.3354nm至0.4nm的值，并且氧含量降低到更低 超过5重量％。

公开(公告)号：US09156700B2

公开(公告)日：2015-10-13

申请号：US13815349

申请日：2013-02-25

申请人： Aruna Zhamu ,  Mingchao Wang ,  Lucy Fu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Mingchao Wang ,  Lucy Fu ,  Bor Z. Jang

IPC分类号： C01B31/00 ,  C01B31/04

CPC分类号： C01B31/0469 ,  C01B31/0423 ,  C01B32/19 ,  C01B32/225

摘要： A process for producing a unitary graphene material, comprising: (a) preparing a graphene oxide (GO) gel having GO molecules dissolved in a fluid medium wherein the GO molecules contain higher than 20% by weight of oxygen; (b) dispensing and depositing a layer of GO gel onto a surface of a substrate to form a layer of deposited GO gel thereon, wherein the dispensing and depositing procedure includes shear-induced thinning; (c) removing the fluid medium from the deposited GO gel to form a GO layer having an inter-plane spacing d002 of 0.4 nm to 1.2 nm as determined by X-ray diffraction; and (d) heat treating the GO layer to form the unitary graphene material at a heat treatment temperature higher than 100° C. to an extent that d002 is decreased to a value of 0.3354 nm to 0.4 nm and the oxygen content is decreased to less than 5% by weight.

摘要翻译： 一种制备单一石墨烯材料的方法，包括：（a）制备具有溶解在其中GO分子含有高于20重量％的氧的流体介质中的GO分子的氧化石墨烯（GO）凝胶; （b）将GO凝胶层分配并沉积到基底表面上以在其上形成沉积的GO凝胶层，其中分配和沉积步骤包括剪切诱导的稀化; （c）通过X射线衍射测定，从沉积的GO凝胶中除去流体介质以形成具有0.4nm至1.2nm的平面间距d002的GO层; 和（d）热处理GO层以在高于100℃的热处理温度下形成单一石墨烯材料，直到d002降低到0.3354nm至0.4nm的值，并且氧含量降低到更低 超过5重量％。

公开(公告)号：US09966199B2

公开(公告)日：2018-05-08

申请号：US14998475

申请日：2016-01-11

申请人： Aruna Zhamu ,  Bor Z Jang

发明人： Aruna Zhamu ,  Bor Z Jang

IPC分类号： H01G9/00 ,  H01G9/04 ,  H01G9/145 ,  H01G11/32 ,  H01G11/26 ,  H01G11/46 ,  H01G11/06 ,  H01G11/48 ,  H01G11/36 ,  H01G11/38 ,  H01G11/70 ,  C01B32/184 ,  C01B32/194 ,  H01G11/02

CPC分类号： H01G11/32 ,  C01B32/184 ,  C01B32/194 ,  C01B2204/22 ,  C01B2204/24 ,  C01B2204/32 ,  H01G11/02 ,  H01G11/06 ,  H01G11/26 ,  H01G11/36 ,  H01G11/38 ,  H01G11/46 ,  H01G11/48 ,  H01G11/70 ,  Y02E60/13

摘要： A supercapacitor electrode comprising a solid graphene foam impregnated with a liquid or gel electrolyte, wherein the solid graphene foam is composed of multiple pores and pore walls, wherein pore walls contain a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.001% to 5% by weight of non-carbon elements wherein non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, chemically functionalized graphene, or a combination thereof, and the solid graphene foam, when measured in a dried state without electrolyte, has a physical density from 0.01 to 1.7 g/cm3, a specific surface area from 50 to 3,200 m2/g, a thermal conductivity of at least 200 W/mK per unit of specific gravity, and/or an electrical conductivity no less than 2,000 S/cm per unit of specific gravity.

公开(公告)号：US09905856B1

公开(公告)日：2018-02-27

申请号：US15392213

申请日：2016-12-28

申请人： Aruna Zhamu ,  Hui He ,  Baofei Pan ,  Yu-Sheng Su ,  Bor Z Jang

发明人： Aruna Zhamu ,  Hui He ,  Baofei Pan ,  Yu-Sheng Su ,  Bor Z Jang

IPC分类号： H01M2/10 ,  H01M4/78 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M4/02

CPC分类号： H01M4/78 ,  H01M2/1055 ,  H01M2/1083 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0587 ,  H01M2004/025 ,  H01M2300/0025

摘要： Provided is a rope-shape alkali metal-sulfur battery having (a) a first electrode comprising a conductive porous rod and a mixture of a first electrode active material and a first electrolyte residing in pores of the first porous rod; (b) a porous separator wrapping around the first electrode to form a separator-protected first electrode; (c) a second electrode comprising a conductive porous rod having a mixture of a second electrode active material and a second electrolyte residing in pores of the second porous rod; wherein the separator-protected first electrode and the second electrode are combined to form a braid or a yarn; and (d) a protective sheath encasing the braid or yarn; wherein either the first or the second electrode is a cathode containing sulfur or a sulfur compound as a cathode active material and the battery has a rope shape having a length-to-diameter aspect ratio no less than 5.

公开(公告)号：US09741499B2

公开(公告)日：2017-08-22

申请号：US14756292

申请日：2015-08-24

申请人： Aruna Zhamu ,  Bor Z Jang

发明人： Aruna Zhamu ,  Bor Z Jang

IPC分类号： H01G9/00 ,  H01G11/86 ,  H01G11/24 ,  H01G11/26 ,  H01G11/52 ,  H01G11/78 ,  H01G11/32 ,  H01G11/70 ,  H01G11/02 ,  H01G11/28 ,  H01G11/36 ,  H01G11/46

CPC分类号： H01G11/86 ,  H01G11/02 ,  H01G11/24 ,  H01G11/28 ,  H01G11/32 ,  H01G11/36 ,  H01G11/46 ,  H01G11/70 ,  Y02E60/13

摘要： A process for producing a supercapacitor cell, comprising (a) Assembling a porous cell framework composed of a first conductive foam structure, a second conductive foam structure, and a porous separator, wherein the first and/or second conductive foam structure has a thickness no less than 200 μm and at least 80% by volume of pores; (b) Preparing a first suspension of an anode active material dispersed in a liquid electrolyte and a second suspension of a cathode active material (e.g. graphene sheets) dispersed in a liquid electrolyte; and (c) Injecting the first suspension into pores of the first conductive foam structure to form an anode and injecting second suspension into pores of the second conductive foam structure to form a cathode, wherein the anode active material or the cathode active material constitutes an electrode active material loading >10 mg/cm2, preferably >15 mg/cm2, more preferably >20 mg/cm2.

公开(公告)号：US20170207489A1

公开(公告)日：2017-07-20

申请号：US14998514

申请日：2016-01-15

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M10/0585 ,  H01M10/0525 ,  H01M4/80 ,  H01M10/054

CPC分类号： H01M10/0585 ,  H01M4/13 ,  H01M4/808 ,  H01M10/0525 ,  H01M10/054

摘要： A process for producing an alkali metal battery, comprising: (a) preparing multiple conductive porous layers (having at least 80% by volume of pores), multiple wet anode layers of an anode active material mixed with a liquid electrolyte, and multiple wet cathode layers of a cathode active material mixed with a liquid electrolyte; (b) stacking and consolidating a desired number of the porous layers and a desired number of wet anode layers to form an anode electrode; (c) placing a porous separator layer in contact with the anode electrode; (d) preparing a cathode electrode in a similar manner than anode; and (e) assembling all the components in a housing to produce the battery; wherein the anode active material has a material mass loading no less than 20 mg/cm2 in the anode and/or the cathode active material has a material mass loading no less than 30 mg/cm2 in the cathode electrode.

公开(公告)号：US20170207488A1

公开(公告)日：2017-07-20

申请号：US14998513

申请日：2016-01-15

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M10/0585 ,  H01M10/054 ,  H01M4/66 ,  H01M4/80 ,  H01M4/133 ,  H01M4/587 ,  H01M4/1393 ,  H01M4/04 ,  D04H1/728 ,  H01M4/136 ,  H01M4/38 ,  H01M4/1397 ,  H01M4/62 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2/02 ,  H01M2/16 ,  H01M4/583 ,  H01M10/0525

摘要： Process for producing an alkali metal-sulfur battery, comprising: (a) Preparing a first conductive porous structure; (b) Preparing a second conductive porous structure; (c) Injecting or impregnating a first suspension into pores of the first conductive porous structure to form an anode electrode, wherein the first suspension contains an anode active material, an optional conductive additive, and a first electrolyte; (d) Injecting or impregnating a second suspension into pores of the second conductive porous structure to form a cathode electrode, wherein the second suspension contains a cathode active material (selected from sulfur, lithium polysulfide, sodium polysulfide, sulfur-polymer composite, organo-sulfide, sulfur-carbon composite, sulfur-graphene composite, or a combination thereof), an optional conductive additive, and a second electrolyte; and (e) Assembling the anode electrode, a separator, and a cathode electrode into the battery.