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.

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。

公开(公告)号：US09558860B2

公开(公告)日：2017-01-31

申请号：US12807635

申请日：2010-09-10

申请人： Aruna Zhamu ,  Jinjun Shi ,  Guorong Chen ,  Qing Fang ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Jinjun Shi ,  Guorong Chen ,  Qing Fang ,  Bor Z. Jang

IPC分类号： H01M4/583 ,  H01B1/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M4/50 ,  B82Y30/00 ,  H01M4/04 ,  H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/38 ,  H01M4/48 ,  H01M4/58

CPC分类号： H01M4/133 ,  B82Y30/00 ,  H01B1/04 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/139 ,  H01M4/386 ,  H01M4/387 ,  H01M4/48 ,  H01M4/483 ,  H01M4/523 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  Y02E60/122

摘要： A nano graphene-enhanced particulate for use as a lithium-ion battery anode active material, wherein the particulate is formed of a single sheet of graphene or a plurality of graphene sheets and a plurality of fine anode active material particles with a size smaller than 10 μm. The graphene sheets and the particles are mutually bonded or agglomerated into the particulate with at least a graphene sheet embracing the anode active material particles. The amount of graphene is at least 0.01% by weight and the amount of the anode active material is at least 0.1% by weight, all based on the total weight of the particulate. A lithium-ion battery having an anode containing these graphene-enhanced particulates exhibits a stable charge and discharge cycling response, a high specific capacity per unit mass, a high first-cycle efficiency, a high capacity per electrode volume, and a long cycle life.

摘要翻译： 一种用作锂离子电池负极活性材料的纳米石墨烯增强颗粒，其中颗粒由单片石墨烯或多个石墨烯片和多个尺寸小于10的细阳极活性材料颗粒形成 μm。 石墨烯片和颗粒与至少包含阳极活性物质颗粒的石墨烯片相互结合或聚集成颗粒。 石墨烯的量为至少0.01重量％，阳极活性物质的量为至少0.1重量％，均基于颗粒的总重量。 具有包含这些石墨烯增强颗粒的阳极的锂离子电池表现出稳定的充放电循环响应，每单位质量的高比容量，高的第一循环效率，每电极体积的高容量和长的循环寿命 。