公开(公告)号：US09484160B2

公开(公告)日：2016-11-01

申请号：US13987994

申请日：2013-09-23

申请人： Aruna Zhamu ,  Bor Z Jang ,  Guorong Chen

发明人： Aruna Zhamu ,  Bor Z Jang ,  Guorong Chen

IPC分类号： H01M4/64 ,  H01G11/68 ,  H01M4/66 ,  H01G11/36 ,  H01G11/04 ,  H01G11/06 ,  H01M4/38 ,  H01M4/58 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569

CPC分类号： H01G11/68 ,  H01G11/04 ,  H01G11/06 ,  H01G11/36 ,  H01M4/38 ,  H01M4/382 ,  H01M4/5825 ,  H01M4/663 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

摘要： A unitary graphene-based current collector in a battery or capacitor. The current collector is or contains a unitary graphene layer that is composed of closely packed and chemically bonded parallel graphene planes having an inter-graphene plane spacing of 0.335 to 0.40 nm and an oxygen content less than 5% by weight (more typically 0.001% to 1%), an average grain size larger than 5 μm (more typically >100 μm; some as large as >cm), a physical density higher than 1.8 g/cm3, and is obtained from heat-treating a graphene oxide gel at a temperature higher than 100° C. (typically and preferably from 1,000 to 3,000° C.). Such an integrated or unitary graphene entity is compatible with essentially all electrolytes commonly used in batteries and supercapacitors.

公开(公告)号：US09147874B2

公开(公告)日：2015-09-29

申请号：US13507168

申请日：2012-06-11

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： H01M4/13 ,  H01M4/60 ,  H01M4/58 ,  H01M4/137 ,  B82Y30/00 ,  H01M4/1399 ,  H01M4/62 ,  H01M4/76 ,  H01M10/052

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.

摘要翻译： 一种可再充电锂电池，包括：（a）包含预锂化锂储存材料或锂储存材料和锂离子源的组合的阳极; （b）由碳，石墨，金属或导电聚合物和酞菁化合物的中孔多孔结构构成的混合阴极活性材料，其中所述中孔多孔结构的量为1重量％至99重量％ 基于组合的中孔多孔结构和酞菁的总重量，并且其中所述中孔多孔结构具有尺寸为2nm至50nm的孔以容纳其中的酞菁化合物; 和（c）电解质或电解质/分离器组件。 该二次电池显示出所有可再充电锂离子电池的循环寿命长以及最佳阴极比容量和最佳电池级比能。

公开(公告)号：US08895189B2

公开(公告)日：2014-11-25

申请号：US13385105

申请日：2012-02-03

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

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

IPC分类号： H01M4/133

CPC分类号： H01M4/587 ,  B82Y30/00 ,  H01G11/50 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

摘要： A surface-mediated cell (SMC) comprising: (a) a cathode comprising a carbon-based cathode active material having a surface area to capture or store lithium thereon; (b) an anode comprising an anode current collector alone, or combined anode current collector and anode active material; (c) a porous separator disposed between the anode and the cathode; (d) a lithium-containing electrolyte, wherein the anode and/or cathode active material has a specific surface area no less than 100 m2/g in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; and (e) a lithium source disposed in at least one of the two electrodes when the cell is made, and the cell has an open-circuit voltage (OCV) of at least 0.8 volts; wherein the cell operates between a lower voltage limit lower than the OCV and an upper limit of between 3.8 and 4.5 volts.

摘要翻译： 一种表面介导的细胞（SMC），包括：（a）包含具有在其上捕获或储存锂的表面积的碳基阴极活性材料的阴极; （b）阳极，其包括单独的阳极集电器和阳极活性材料; （c）设置在阳极和阴极之间的多孔隔板; （d）含锂电解质，其中所述阳极和/或阴极活性材料与所述电解质直接物理接触以从其中接收锂离子或提供锂离子，其比表面积不小于100m 2 / g; 以及（e）当制造电池时设置在两个电极中的至少一个中的锂源，并且电池具有至少0.8伏的开路电压（OCV）; 其中所述电池在低于所述OCV的较低电压限制和3.8至4.5伏特的上限之间工作。

公开(公告)号：US08765303B2

公开(公告)日：2014-07-01

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： H01M10/0525 ,  H01M4/133

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的中等孔; （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：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：US20120058397A1

公开(公告)日：2012-03-08

申请号：US12807471

申请日：2010-09-07

申请人： Aruna Zhamu ,  Jinjun Shi ,  Guorong Chen ,  Ming C. Wang ,  Bor Z. Jang

发明人： Aruna Zhamu ,  Jinjun Shi ,  Guorong Chen ,  Ming C. Wang ,  Bor Z. Jang

IPC分类号： H01M4/583

CPC分类号： H01M4/587 ,  B82Y30/00 ,  H01B1/24 ,  H01M4/13 ,  H01M4/139 ,  H01M4/366 ,  H01M4/625 ,  Y02E60/122

摘要： A nano graphene-enhanced particulate for use as a lithium battery cathode active material, wherein the particulate is formed of a single or a plurality of graphene sheets and a plurality of fine cathode active material particles with a size smaller than 10 μm (preferably sub-micron or nano-scaled), and the graphene sheets and the particles are mutually bonded or agglomerated into an individual discrete particulate with at least a graphene sheet embracing the cathode active material particles, and wherein the particulate has an electrical conductivity no less than 10−4 S/cm and the graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the cathode active material combined.

摘要翻译： 一种用作锂电池正极活性材料的纳米石墨烯增强颗粒，其中所述颗粒由单个或多个石墨烯片和多个尺寸小于10μm的精细阴极活性材料颗粒形成（优选地， 微米或纳米级），并且石墨烯片和颗粒与至少包含正极活性物质颗粒的石墨烯片相互结合或附聚到单独的离散颗粒中，并且其中颗粒的导电率不小于10- 4S / cm，并且所述石墨烯的量为基于石墨烯和阴极活性材料的总重量的0.01重量％至30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.