公开(公告)号：US20140315100A1

公开(公告)日：2014-10-23

申请号：US13986319

申请日：2013-04-22

申请人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu ,  Yi-jun Lin

发明人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu ,  Yi-jun Lin

IPC分类号： H01M4/36

CPC分类号： H01M4/366 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/621 ,  H01M4/625 ,  H01M10/3909 ,  H01M2004/021 ,  Y10T29/49115

摘要： A rechargeable lithium-sulfur cell comprising an anode, a separator and/or electrolyte, a sulfur cathode, an optional anode current collector, and an optional cathode current collector, wherein the cathode comprises (a) exfoliated graphite worms that are interconnected to form a porous, conductive graphite flake network comprising pores having a size smaller than 100 nm; and (b) nano-scaled powder or coating of sulfur, sulfur compound, or lithium polysulfide disposed in the pores or coated on graphite flake surfaces wherein the powder or coating has a dimension less than 100 nm. The exfoliated graphite worm amount is in the range of 1% to 90% by weight and the amount of powder or coating is in the range of 99% to 10% by weight based on the total weight of exfoliated graphite worms and sulfur (sulfur compound or lithium polysulfide) combined. The cell exhibits an exceptionally high specific energy and a long cycle life.

摘要翻译： 包括阳极，隔板和/或电解质，硫阴极，任选的阳极集电器和任选的阴极集电器的可再充电锂 - 硫电池，其中所述阴极包括（a）相互连接形成的剥离的石墨蠕虫 多孔导电石墨薄片网络，其包含尺寸小于100nm的孔; 和（b）设置在孔中的纳米级粉末或硫，硫化合物或多硫化锂的涂层，或涂覆在石墨片表面上，其中粉末或涂层具有小于100nm的尺寸。 剥离石墨蠕虫量在1重量％至90重量％的范围内，粉末或涂层的量基于脱落的石墨蠕虫和硫（硫化合物）的总重量在99重量％至10重量％的范围内 或多硫化锂）组合。 电池表现出特别高的比能量和较长的循环寿命。

公开(公告)号：US20150044565A1

公开(公告)日：2015-02-12

申请号：US13987566

申请日：2013-08-08

申请人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

发明人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

IPC分类号： H01M4/36 ,  H01M4/52 ,  H01M4/04 ,  H01M4/38 ,  H01M10/28 ,  H01M4/44 ,  H01M4/46 ,  H01M4/485 ,  H01M4/58 ,  H01M4/62 ,  H01M4/42

CPC分类号： H01M4/366 ,  H01M4/0423 ,  H01M4/0426 ,  H01M4/0428 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M4/44 ,  H01M4/463 ,  H01M4/485 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： The present invention provides a process for producing a graphene-enhanced anode active material for use in a lithium battery. The process comprises (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into the deposition zone, allowing the vapor or atoms to deposit onto a surface of the graphene material film to form a sheet of an anode active material-coated graphene material; and (c) mechanically breaking this sheet into multiple pieces of anode active material-coated graphene; wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight, all based on the total weight of the graphene material and the anode active material combined.

摘要翻译： 本发明提供一种用于生产用于锂电池的石墨烯增强的阳极活性材料的方法。 该方法包括（a）将石墨烯材料的连续膜提供到沉积区中; （b）将前体负极活性物质的蒸汽或原子引入沉积区，允许蒸气或原子沉积在石墨烯材料膜的表面上以形成负极活性材料涂覆石墨烯材料的片材; 和（c）将该片材机械地破碎成多片阳极活性材料涂覆的石墨烯; 其中所述石墨烯材料的量为0.1重量％至99.5重量％，并且所述负极活性材料的量为至少0.5重量％，全部基于所述石墨烯材料和所述负极活性材料的总重量 。

公开(公告)号：US20150044556A1

公开(公告)日：2015-02-12

申请号：US13987567

申请日：2013-08-08

申请人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

发明人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

IPC分类号： H01M4/36 ,  H01M4/04

CPC分类号： H01M4/366 ,  H01M4/04 ,  H01M4/0421 ,  H01M4/13 ,  H01M4/139 ,  H01M4/625 ,  H01M10/056 ,  H01M2004/028 ,  Y10T156/1075

摘要： The present invention provides a cathode (positive electrode) of a lithium battery and a process for producing this cathode. The electrode comprises a cathode active material-coated graphene sheet and the graphene sheet has two opposed parallel surfaces, wherein at least 50% area (preferably >80%) of one of the two surfaces is coated with a cathode active material coating. The graphene material is in an amount of from 0.1% to 99.5% by weight and the cathode active material is in an amount of at least 0.5% by weight (preferably >80% and more preferably >90%), all based on the total weight of the graphene material and the cathode active material combined. The cathode active material is preferably an inorganic material, an organic or polymeric material, a metal oxide/phosphate/sulfide, or a combination thereof. The invention also provides a lithium battery, including a lithium-ion, lithium-metal, or lithium-sulfur battery.

摘要翻译： 本发明提供锂电池的阴极（正电极）及其制造方法。 电极包括阴极活性材料涂覆的石墨烯片，并且石墨烯片具有两个相对的平行表面，其中两个表面中的一个表面的至少50％面积（优选> 80％）涂覆有阴极活性材料涂层。 石墨烯材料的量为0.1重量％至99.5重量％，正极活性物质的量为至少0.5重量％（优选> 80重量％，更优选> 90重量％），均基于总量 石墨烯材料和阴极活性材料的重量相结合。 阴极活性材料优选为无机材料，有机或聚合材料，金属氧化物/磷酸盐/硫化物或其组合。 本发明还提供一种锂电池，其包括锂离子，锂金属或锂硫电池。

公开(公告)号：US20150024248A1

公开(公告)日：2015-01-22

申请号：US13987394

申请日：2013-07-22

申请人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

发明人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

IPC分类号： H01M2/16 ,  H01M10/056

CPC分类号： H01M10/056 ,  H01M2/1606 ,  H01M10/052 ,  H01M10/0568 ,  H01M2300/0045 ,  H01M2300/0094 ,  Y02P70/54 ,  Y02T10/7011

摘要： A separator-electrolyte layer product for use in a lithium battery, comprising: (a) a porous thin-film separator selected from a porous polymer film, a porous mat, fabric, or paper made of polymer or glass fibers, or a combination thereof, wherein the separator has a thickness less than 500 μm; and (b) a non-flammable quasi-solid electrolyte containing a lithium salt dissolved in a liquid solvent up to a concentration no less than 3 M; wherein the porous thin-film separator is coated with the quasi-solid electrolyte so that the layer product exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of the liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point.

摘要翻译： 一种用于锂电池的隔膜 - 电解质层产品，包括：（a）选自多孔聚合物膜，多孔垫，织物或由聚合物或玻璃纤维制成的纸的多孔薄膜隔膜，或其组合 其中所述隔板的厚度小于500μm; 和（b）含有溶解在液体溶剂中的锂盐的不易燃准固态电解质，其浓度不低于3M; 其中所述多孔薄膜分离器涂覆有准固体电解质，使得当在20℃下测量时，所述层产物的蒸气压小于0.01kPa，蒸气压小于液体的蒸气压的60％ 溶剂，闪点比单独的第一液体溶剂的闪点高至少20摄氏度，闪点高于150℃，或没有可检测的闪点。

公开(公告)号：US20140363746A1

公开(公告)日：2014-12-11

申请号：US13986814

申请日：2013-06-10

申请人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

发明人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

IPC分类号： H01M10/056 ,  H01M10/052

CPC分类号： H01M10/052 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M12/08 ,  H01M2004/028 ,  H01M2300/0028 ,  Y02E60/122 ,  Y02E60/128 ,  Y02T10/7011

摘要： A rechargeable lithium cell comprising a cathode having a cathode active material, an anode having an anode active material, a porous separator electronically separating the anode and the cathode, a non-flammable quasi-solid electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a concentration sufficiently high so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a flash point at least 20 degrees Celsius higher than the flash point of the first organic liquid solvent alone, a flash point higher than 150° C., or no flash point. This battery cell is non-flammable and safe, has a long cycle life, high capacity, and high energy density.

摘要翻译： 一种可再充电锂电池，包括具有阴极活性材料的阴极，具有阳极活性材料的阳极，电子分离阳极和阴极的多孔隔板，与阴极和阳极接触的不可燃的准固体电解质，其中 电解质含有溶解在浓度足够高的第一有机液体溶剂中的锂盐，使得当在20℃下测量时，电解质的蒸汽压力低于0.01kPa，闪点高于闪光灯的至少20摄氏度 第一有机液体溶剂点，闪点高于150℃，或无闪点。 该电池不易燃，安全，循环寿命长，容量大，能量密度高。

公开(公告)号：US20150064575A1

公开(公告)日：2015-03-05

申请号：US13987785

申请日：2013-09-03

申请人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

发明人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

IPC分类号： H01M10/0568 ,  H01M10/052

CPC分类号： H01M10/0568 ,  H01M4/38 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0569 ,  Y02T10/7011

摘要： A rechargeable lithium-selenium cell comprising a cathode having a cathode active material selected from Se or SexSy (x/y ratio=0.01 to 100), an anode having an anode active material, a porous separator electronically separating the anode and the cathode, a non-flammable quasi-solid electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a lithium salt concentration sufficiently high (at least 2.0 M, more preferably >3.0 M) so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a flash point at least 20 degrees Celsius higher than the flash point of the first organic liquid solvent alone, a flash point higher than 150° C., or no flash point. This battery cell is non-flammable and safe, has a long cycle life, high capacity, and high energy density.

摘要翻译： 一种可再充电锂硒电池，其特征在于，具有阴极，所述阴极具有选自Se或SexSy的阴极活性物质（x / y比= 0.01〜100），具有负极活性物质的阳极，电解阳极和阴极的多孔隔膜， 与阴极和阳极接触的非易燃准固体电解质，其中电解质含有溶解在锂盐浓度足够高（至少2.0M，更优选> 3.0M）的第一有机液体溶剂中的锂盐，因此 当在20℃下测量时，电解质表现出小于0.01kPa的蒸气压，闪点比单独的第一有机液体溶剂的闪点高至少20摄氏度，闪点高于150℃， 或没有闪点。 该电池不易燃，安全，循环寿命长，容量大，能量密度高。

公开(公告)号：US20150064574A1

公开(公告)日：2015-03-05

申请号：US13987764

申请日：2013-08-30

申请人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

发明人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

IPC分类号： H01M10/0568 ,  H01M10/05

CPC分类号： H01M10/0568 ,  H01M4/40 ,  H01M4/405 ,  H01M4/587 ,  H01M10/05 ,  H01M10/054 ,  H01M10/0569

摘要： A non-flammable quasi-solid electrolyte and a rechargeable non-lithium alkali metal cell containing this electrolyte. The electrolyte comprises an alkali metal salt dissolved in an organic liquid solvent with a concentration higher than 2.5 M (preferably >3.5 M) or a molecular ratio greater than 0.2 (preferably >0.3), wherein the alkali metal is selected from Na, K, a combination of Na and K, or a combination of Na and/or K with Li. The alkali metal salt concentration is sufficiently high so that the electrolyte exhibits a vapor pressure

公开(公告)号：US20150044564A1

公开(公告)日：2015-02-12

申请号：US13987565

申请日：2013-08-08

申请人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

发明人： Yanbo Wang ,  Bor Z. Jang ,  Hui He ,  Aruna Zhamu

IPC分类号： H01M4/36 ,  H01M4/04

CPC分类号： H01M4/366 ,  H01M4/0421 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

摘要： The present invention provides an anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein the graphene sheet has two opposed parallel surfaces and at least 50% area of one of the surfaces is coated with an anode active material and wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight (preferably at least 60%), all based on the total weight of the graphene material and the anode active material combined.

摘要翻译： 本发明提供一种锂离子电池的阳极电极，其包括阳极活性材料涂覆的石墨烯片，其中所述石墨烯片具有两个相对的平行表面，并且其中一个表面的至少50％面积涂覆有阳极活性物质 材料，其中所述石墨烯材料的量为0.1重量％至99.5重量％，并且所述负极活性物质的量为至少0.5重量％（优选至少60重量％），均基于 石墨烯材料和阳极活性材料组合。

公开(公告)号：US20150024121A1

公开(公告)日：2015-01-22

申请号：US13987396

申请日：2013-07-22

申请人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

发明人： Hui He ,  Bor Z. Jang ,  Yanbo Wang ,  Aruna Zhamu

IPC分类号： H01M10/0566 ,  H01M10/0568 ,  H01M2/14 ,  H01M10/0569

CPC分类号： H01M10/0566 ,  H01M2/145 ,  H01M2/162 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025 ,  H01M2300/0028

摘要： A process for producing a separator-electrolyte layer for use in a lithium battery, comprising: (a) providing a porous separator; (b) providing a quasi-solid electrolyte containing a lithium salt dissolved in a first liquid solvent up to a first concentration no less than 3 M; and (c) coating or impregnating the separator with the electrolyte to obtain the separator-electrolyte layer with a final concentration ≧the first concentration so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of that of the first liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point. A battery using such a separator-electrolyte is non-flammable and safe, has a long cycle life, high capacity, and high energy density.

摘要翻译： 一种用于生产用于锂电池的隔板 - 电解质层的方法，包括：（a）提供多孔隔板; （b）提供含有溶解在第一液体溶剂中的锂盐的准固态电解质，其浓度不低于3M; 和（c）用电解质涂覆或浸渍隔膜，以获得最终浓度≧第一浓度的隔板 - 电解质层，使得当在20℃下测量时，电解质的蒸气压小于0.01kPa，蒸气压 小于第一液体溶剂的60％，闪点比单独的第一液体溶剂的闪点高至少20摄氏度，闪点高于150℃，或没有可检测到的闪点。 使用这种隔膜 - 电解质的电池是不可燃和安全的，具有长的循环寿命，高容量和高能量密度。

公开(公告)号：US20170021387A1

公开(公告)日：2017-01-26

申请号：US14756006

申请日：2015-07-20

申请人： Yi-jun Lin ,  Shaio-yen Lee ,  Aruna Zhamu ,  Bor Z. Jang

发明人： Yi-jun Lin ,  Shaio-yen Lee ,  Aruna Zhamu ,  Bor Z. Jang

IPC分类号： B05D1/28 ,  B05D3/00 ,  B05D3/12 ,  C01B31/04 ,  B05D1/40

CPC分类号： B05D1/28 ,  B05D1/40 ,  B05D3/007 ,  B05D3/12 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/184 ,  C01B32/20 ,  C01B32/23

摘要： A process for producing a highly oriented graphene oxide (GO) film, comprising: (a) preparing either a GO dispersion having GO sheets dispersed in a fluid medium or a GO gel having GO molecules dissolved in a fluid medium; (b) dispensing the GO dispersion or gel onto a surface of an application roller rotating in a first direction to form an applicator layer of GO and transferring the applicator layer to a surface of a supporting film driven in a second direction opposite to the first direction to form a wet layer of GO on the supporting film; and (c) removing said fluid medium from the wet layer of GO to form a dried layer of GO having an inter-planar spacing d002 of 0.4 nm to 1.2 nm and an oxygen content no less than 5% by weight. This dried GO layer may be heat-treated to produce a graphitic film.

摘要翻译： 一种制备高取向氧化石墨（GO）膜的方法，包括：（a）制备具有分散在流体介质中的GO片的GO分散体或具有溶解在流体介质中的GO分子的GO凝胶; （b）将GO分散体或凝胶分配到沿第一方向旋转的施加辊的表面上，以形成GO的施用层，并将施加器层转移到沿与第一方向相反的第二方向驱动的支撑膜的表面 在支撑膜上形成GO的湿层; 和（c）从GO的湿层去除所述流体介质以形成具有0.4nm至1.2nm的平坦间距d002和氧含量不小于5％重量的GO的干燥层。 该干燥的GO层可以被热处理以产生石墨膜。