公开(公告)号：US20150239741A1

公开(公告)日：2015-08-27

申请号：US13999397

申请日：2014-02-21

申请人： David Joseph Burton ,  Bor Z. Jang ,  Aruna Zhamu

发明人： David Joseph Burton ,  Bor Z. Jang ,  Aruna Zhamu

IPC分类号： C01B31/04 ,  C08G65/48 ,  C07B41/02 ,  C07B43/04 ,  C07B43/08 ,  C07B41/04 ,  C08G63/91 ,  C08F120/32 ,  C07D301/02 ,  C07B41/08

CPC分类号： C01B31/0469 ,  C01B32/19 ,  C01B32/23 ,  C07D301/02 ,  C08G65/321 ,  C08L71/02

摘要： The invention provides a method of producing a graphene material from a starting graphitic material. In an embodiment, the method comprises: (a) dispersing the starting graphitic material in a liquid medium to form a graphite suspension; and (b) introducing the graphite suspension into a hydrodynamic cavitation reactor that generates and collapses cavitation or bubbles in the liquid medium to exfoliate and separate graphene planes from the starting graphitic material for producing the graphene material. The process is fast (minutes as opposed to hours or days of conventional processes), environmentally benign, and highly scalable. The reactor can concurrently perform the functions of graphene production, chemical functionalization, dispersion, and mixing with a polymer to make a composite.

摘要翻译： 本发明提供从起始石墨材料生产石墨烯材料的方法。 在一个实施方案中，该方法包括：（a）将起始石墨材料分散在液体介质中以形成石墨悬浮液; 和（b）将石墨悬浮液引入到流体动力空化反应器中，该反应器在液体介质中产生和塌陷空化或气泡，以将石墨烯平面与用于生产石墨烯材料的起始石墨材料分离和分离。 这个过程是快速的（分钟，而不是常规过程的几天或几天），环境友好和高度可扩展。 反应器可以同时执行石墨烯生产，化学官能化，分散和与聚合物混合以制备复合材料的功能。

公开(公告)号：US11283104B2

公开(公告)日：2022-03-22

申请号：US13507057

申请日：2012-06-01

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

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

IPC分类号： H01M10/054 ,  H01M4/66 ,  H01M4/137 ,  H01M4/134 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/133 ,  B82Y40/00 ,  B82Y30/00 ,  H01M4/02

摘要： A dual electroplating cell comprising: (a) an electrolyte component containing therein ions of a first metal; (b) a porous cathode current collector having surface areas to capture and store metal ions directly thereon, wherein the cathode current collector has a specific surface area greater than 100 m2/g that is in direct contact with said electrolyte; (c) a porous anode current collector having surface areas to capture and store metal ions thereon, wherein the anode current collector has a specific surface area greater than 100 m2/g that is in direct contact with the electrolyte; (d) a porous separator disposed between the anode and the cathode; and (e) an ion source of the first metal disposed in the anode current collector or the cathode current collector and in electronic contact therewith to obtain an open circuit voltage (OCV) from 0.3 volts to 3.5 volts when the cell is made.

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.

公开(公告)号：US20170182474A1

公开(公告)日：2017-06-29

申请号：US14998356

申请日：2015-12-28

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： B01J20/20 ,  B01D15/08 ,  C09K5/14 ,  C02F1/28 ,  B01J20/28 ,  C09K3/32

CPC分类号： B01J20/20 ,  B01D15/08 ,  B01J20/28045 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/28064 ,  B01J20/28066 ,  B01J20/28083 ,  C02F1/283 ,  C02F1/681 ,  C02F2101/32 ,  C02F2303/16 ,  C09K3/32 ,  C09K5/14

摘要： Provided is an integral 3D graphene-carbon hybrid foam composed of multiple pores and pore walls, wherein the pore walls contain single-layer or few-layer graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio from 1/100 to 1/2, wherein the few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d002 from 0.3354 nm to 0.40 nm and the graphene sheets contain a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.01% to 25% by weight of non-carbon elements wherein said non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof. Also provided are a process for producing the hybrid form, products containing the hybrid foam, and its applications.

公开(公告)号：US20170166722A1

公开(公告)日：2017-06-15

申请号：US14757236

申请日：2015-12-10

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： C08K3/04 ,  B02C17/04 ,  B29C45/00 ,  B05D1/02 ,  B29C70/58

CPC分类号： C08K3/04 ,  B05D1/02 ,  B29C70/58 ,  B29K2105/16 ,  B29K2507/04 ,  B33Y10/00 ,  C01B32/19

摘要： Provided is a simple, fast, scalable, and environmentally benign method of producing a graphene-reinforced polymer matrix composite directly from a graphitic material, the method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of solid polymer carrier material particles to produce graphene-coated or graphene-embedded polymer particles inside the impacting chamber; and (c) forming graphene-coated or graphene-embedded polymer particles into the graphene-reinforced polymer matrix composite. Also provided is a mass of the graphene-coated or graphene-embedded polymer particles produced by this method.

公开(公告)号：US20170148573A1

公开(公告)日：2017-05-25

申请号：US14757124

申请日：2015-11-23

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01G9/00

CPC分类号： H01G11/02 ,  H01G11/04 ,  H01G11/06 ,  H01G11/24 ,  H01G11/28 ,  H01G11/32 ,  H01G11/46 ,  H01G11/70 ,  H01G11/86 ,  Y02E60/13

摘要： A process for producing an electrode for a supercapacitor cell, said process comprising: (A) preparing a plurality of electrically conductive porous layers and a plurality of wet electrode layers composed of an electrode active material and an optional conductive additive mixed with a liquid or gel electrolyte, wherein the conductive porous layers contain interconnected conductive pathways and at least 80% by volume of pores; and (B) stacking and consolidating a desired number of the porous layers and a desired number of the wet electrode layers in an alternating sequence to form an electrode having a thickness no less than 100 μm (preferably greater than 200 μm, more preferably greater than 400 μm, further more preferably greater than 600 μm, and most preferably greater than 1,000 μm).

公开(公告)号：US20170104204A1

公开(公告)日：2017-04-13

申请号：US14756754

申请日：2015-10-08

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01M4/04 ,  H01M10/054 ,  H01M10/052

CPC分类号： H01M4/0416 ,  H01M4/139 ,  H01M10/052 ,  H01M10/054 ,  H01M10/058 ,  Y02T10/7011

摘要： A process for producing an electrode for an alkali metal battery, comprising: (a) Continuously feeding an electrically conductive porous layer to an anode or cathode material impregnation zone, wherein the conductive porous layer has two opposed porous surfaces and contain interconnected conductive pathways and at least 70% by volume of pores; (b) Impregnating a wet anode or cathode active material mixture into the porous layer from at least one of the two porous surfaces to form an anode or cathode electrode, wherein the wet anode or cathode active material mixture contains an anode or cathode active material and an optional conductive additive mixed with a liquid electrolyte; and (c) Supplying at least a protective film to cover the at least one porous surface to form the electrode.

公开(公告)号：US20170062141A1

公开(公告)日：2017-03-02

申请号：US14756315

申请日：2015-08-26

申请人： Aruna Zhamu ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Bor Z. Jang

IPC分类号： H01G11/42 ,  H01G11/60 ,  H01G11/86 ,  H01G11/56 ,  H01G11/26 ,  H01G11/34 ,  H01G11/52 ,  H01G11/36

CPC分类号： H01G11/42 ,  C01B32/19 ,  C01B32/23 ,  H01G11/24 ,  H01G11/26 ,  H01G11/28 ,  H01G11/34 ,  H01G11/36 ,  H01G11/44 ,  H01G11/46 ,  H01G11/48 ,  H01G11/52 ,  H01G11/56 ,  H01G11/60 ,  H01G11/86 ,  Y02E60/13

摘要： A process for producing a supercapacitor electrode, comprising (a) subjecting multiple particles of MCMBs to a chemical activation with an activating agent selected from an acid, a base, or a salt at a temperature from 100° C. to 1,200° C. for a period of 0.5 to 24 hours sufficient to produce multiple porous particles each of a monolithic 3D graphene structure comprising multiple pores and a continuous 3D network of graphene pore walls comprising continuous or naturally interconnected graphene ligaments of 1-20 graphene planes of carbon atoms; (b) producing a suspension containing these multiple porous particles, an optional conductive additive, and an optional resin binder in a liquid medium; and (c) depositing the suspension onto at least a primary surface of a current collector to form a wet layer and removing liquid medium from the wet layer to form the supercapacitor electrode.

摘要翻译： 一种制造超级电容器电极的方法，包括（a）在100℃至1200℃的温度下，用选自酸，碱或盐的活化剂对MCMB的多个颗粒进行化学活化，以获得 0.5至24小时的时间足以产生多个多孔颗粒，每个多孔颗粒各自包括多孔的单片3D石墨烯结构和石墨烯孔壁的连续3D网络，其包含1-20个碳原子的石墨烯平面的连续或天然互连的石墨烯韧带; （b）在液体介质中制备含有这些多孔颗粒的悬浮液，任选的导电添加剂和任选的树脂粘合剂; 和（c）将悬浮液沉积在集电器的至少一个主表面上以形成湿层并从湿层除去液体介质以形成超级电容器电极。

公开(公告)号：US09561955B2

公开(公告)日：2017-02-07

申请号：US13385813

申请日：2012-03-08

申请人： Aruna Zhamu ,  Mingchao Wang ,  Wei Xiong ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Mingchao Wang ,  Wei Xiong ,  Bor Z. Jang

IPC分类号： B82Y30/00 ,  H01B1/04 ,  B82Y40/00

CPC分类号： B82Y30/00 ,  B82Y40/00 ,  H01B1/04 ,  Y10T428/26 ,  Y10T428/268

摘要： Disclosed is a graphene composite thin film composition composed of nano graphene platelets (NGPs) bonded by a graphene oxide binder, wherein the NGPs contain single-layer graphene or multi-layer graphene sheets having a thickness from 0.335 nm to 100 nm. The NGPs occupy a weight fraction of 1% to 99.9% of the total composite weight. The graphene oxide binder, having an oxygen content of 1-40% (preferably

摘要翻译： 公开了由石墨烯氧化物粘合剂结合的纳米石墨烯片（NGP）组成的石墨烯复合薄膜组合物，其中NGP包含单层石墨烯或厚度为0.335nm至100nm的多层石墨烯片。 NGP占总复合重量的1％至99.9％的重量分数。 基于总氧化石墨烯重量，氧含量为1-40％（优选<10％）的氧化石墨烯氧化物粘合剂由氧化石墨烯氧化物凝胶获得。 复合材料形成厚度不大于1mm，优选不大于100μm且不小于10μm的薄膜。 该组合物具有出色的导热性，导电性和机械强度的组合，这些强度与任何相当厚度范围的薄膜材料都无法比拟。