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

    IPC分类号: H01M10/056 H01M10/052

    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。

    Lithium secondary batteries containing non-flammable quasi-solid electrolyte
    4.
    发明授权
    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:US09368831B2

    公开(公告)日:2016-06-14

    申请号:US13986814

    申请日:2013-06-10

    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。

    Non-flammable quasi-solid electrolyte and non-lithium alkali metal or alkali-ion secondary batteries containing same
    5.
    发明授权
    Non-flammable quasi-solid electrolyte and non-lithium alkali metal or alkali-ion secondary batteries containing same 有权
    不易燃的准固体电解质和含有其的非锂碱金属或碱金属二次电池

    公开(公告)号:US09059481B2

    公开(公告)日:2015-06-16

    申请号:US13987764

    申请日:2013-08-30

    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

    摘要翻译: 不可燃的准固体电解质和含有这种电解质的可再充电的非锂碱金属电池。 电解质包含溶解在浓度高于2.5M(优选> 3.5M)或分子比大于0.2(优选> 0.3))的有机液体溶剂中的碱金属盐,其中碱金属选自Na,K, Na和K的组合,或Na和/或K与Li的组合。 碱金属盐浓度足够高,使得当在20℃下测量时,电解质的蒸气压<0.01kPa,当单独测量时,有机溶剂的蒸气压的蒸汽压<60%,至少闪点 当单独测量时,有机液体溶剂的闪点高20摄氏度,闪点高于150℃,或无可检测的闪点。

    Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same
    7.
    发明申请
    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:US20150044556A1

    公开(公告)日:2015-02-12

    申请号:US13987567

    申请日:2013-08-08

    IPC分类号: H01M4/36 H01M4/04

    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。

    Non-flammable quasi-solid electrolyte-separator layer product for lithium battery applications
    8.
    发明申请
    Non-flammable quasi-solid electrolyte-separator layer product for lithium battery applications 有权
    用于锂电池应用的非易燃准固体电解质分离器层产品

    公开(公告)号:US20150024248A1

    公开(公告)日:2015-01-22

    申请号:US13987394

    申请日:2013-07-22

    IPC分类号: H01M2/16 H01M10/056

    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。

    Cathode active material-coated discrete graphene sheets for lithium batteries and process for producing same
    10.
    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

    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。