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    Lithium secondary batteries containing non-flammable quasi-solid electrolyte
    2.
    发明申请
    Lithium secondary batteries containing non-flammable quasi-solid electrolyte 有权
    锂二次电池含有不易燃的准固体电解质

    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。

    Rechargeable lithium-sulfur battery having a high capacity and long cycle life
    4.
    发明申请
    Rechargeable lithium-sulfur battery having a high capacity and long cycle life 有权
    具有高容量，循环寿命长的可充电锂硫电池

    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。

    Lithium-Selenium secondary batteries having non-flammable electrolyte
    5.
    发明申请
    Lithium-Selenium secondary batteries having non-flammable electrolyte 有权
    具有不可燃电解质的锂 - 硒二次电池

    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。

    Anode containing active material-coated graphene sheets and lithium-ion batteries containg same
    7.
    发明申请
    Anode containing active material-coated graphene sheets and lithium-ion batteries containg same 有权
    包含活性材料涂覆的石墨烯片和包含其的锂离子电池的阳极

    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。

    Process for producing non-flammable quasi-solid electrolyte and electrolyte-separator for lithium battery applications
    8.
    发明申请
    Process for producing non-flammable quasi-solid electrolyte and electrolyte-separator for lithium battery applications 有权
    生产用于锂电池应用的非易燃准固体电解质和电解液分离器的方法

    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。

    Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same
    9.
    发明授权
    Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same 有权
    用于锂电池的阴极活性材料涂层离散石墨烯片及其制造方法

    公开(公告)号：US09203084B2

    公开(公告)日：2015-12-01

    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 ,  H01M4/02 ,  H01M10/056

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

    摘要： Provided is 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 greater than 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 greater than 80% and more preferably greater than 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. Also provided is a lithium battery, including a lithium-ion, lithium-metal, or lithium-sulfur battery.

    摘要翻译： 提供锂电池的阴极（正极）和制造该阴极的工序。 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（优选大于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％（优选大于80重量％，更优选大于90重量％），均基于 石墨烯材料和阴极活性材料的总重量相结合。 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。 还提供了包括锂离子，锂金属或锂硫电池的锂电池。