Continuous process for producing spacer-modified nano graphene electrodes for supercapacitors
    1.
    发明授权
    Continuous process for producing spacer-modified nano graphene electrodes for supercapacitors 有权
    用于制造用于超级电容器的间隔物改性的纳米石墨烯电极的连续工艺

    公开(公告)号:US09017756B2

    公开(公告)日:2015-04-28

    申请号:US12655744

    申请日:2010-01-07

    摘要: A specific embodiment of the present invention is a process for continuously producing a porous solid film of spacer-modified nano graphene platelets for supercapacitor electrode applications. This process comprises: (a) dissolving a precursor material in a solvent to form a precursor solution and dispersing multiple nano graphene platelets into the solution to form a suspension; (b) continuously delivering and forming the suspension into a layer of solid film composed of precursor material-coated graphene platelets overlapping one another, and removing the solvent from the solid film (e.g., analogous to a paper-making, mat-making, or web-making procedure); (c) continuously converting the precursor material into nodules bonded to surfaces of graphene platelets to form a porous solid film composed of spacer-modified graphene platelets; and (d) continuously collecting the porous solid film on a collector (e.g., a winding roller). The roll of porous solid film (mat, paper, or web) can then be cut into pieces for used as supercapacitor electrodes.

    摘要翻译: 本发明的具体实施方案是连续制备用于超级电容器电极应用的间隔物改性的纳米石墨烯片晶的多孔固体膜的方法。 该方法包括:(a)将前体材料溶解在溶剂中以形成前体溶液并将多个纳米石墨烯片晶分散到溶液中以形成悬浮液; (b)将悬浮液连续输送并形成为由彼此重叠的前体材料涂覆的石墨烯片晶组成的固体膜层,以及从固体膜中除去溶剂(例如,类似于造纸,制毡或 网络制作程序); (c)将前体材料连续地转化为结合到石墨烯片晶表面的结节,以形成由间隔物改性的石墨烯片晶组成的多孔固体膜; 和(d)在收集器(例如卷绕辊)上连续收集多孔固体膜。 然后可以将多孔固体膜(垫,纸或网)卷切成片以用作超级电容器电极。

    Continuous process for producing spacer-modified nano Graphene electrodes for supercapacitors
    2.
    发明申请
    Continuous process for producing spacer-modified nano Graphene electrodes for supercapacitors 有权
    用于制造用于超级电容器的间隔改性纳米石墨烯电极的连续工艺

    公开(公告)号:US20110165321A1

    公开(公告)日:2011-07-07

    申请号:US12655744

    申请日:2010-01-07

    IPC分类号: B05D5/12

    摘要: A specific embodiment of the present invention is a process for continuously producing a porous solid film of spacer-modified nano graphene platelets for supercapacitor electrode applications. This process comprises: (a) dissolving a precursor material in a solvent to form a precursor solution and dispersing multiple nano graphene platelets into the solution to form a suspension; (b) continuously delivering and forming the suspension into a layer of solid film composed of precursor material-coated graphene platelets overlapping one another, and removing the solvent from the solid film (e.g., analogous to a paper-making, mat-making, or web-making procedure); (c) continuously converting the precursor material into nodules bonded to surfaces of graphene platelets to form a porous solid film composed of spacer-modified graphene platelets; and (d) continuously collecting the porous solid film on a collector (e.g., a winding roller). The roll of porous solid film (mat, paper, or web) can then be cut into pieces for used as supercapacitor electrodes.

    摘要翻译: 本发明的具体实施方案是连续制备用于超级电容器电极应用的间隔物改性的纳米石墨烯片晶的多孔固体膜的方法。 该方法包括:(a)将前体材料溶解在溶剂中以形成前体溶液并将多个纳米石墨烯片晶分散到溶液中以形成悬浮液; (b)将悬浮液连续输送并形成为由彼此重叠的前体材料涂覆的石墨烯片晶组成的固体膜层,以及从固体膜中除去溶剂(例如,类似于造纸,制毡或 网络制作程序); (c)将前体材料连续转化为结合到石墨烯片晶表面的结节,以形成由间隔改性石墨烯片晶组成的多孔固体膜; 和(d)在收集器(例如卷绕辊)上连续收集多孔固体膜。 然后可以将多孔固体膜(垫,纸或网)卷切成片以用作超级电容器电极。

    Spacer-modified nano graphene electrodes for supercapacitors
    3.
    发明授权
    Spacer-modified nano graphene electrodes for supercapacitors 有权
    用于超级电容器的间隔改性纳米石墨烯电极

    公开(公告)号:US08315039B2

    公开(公告)日:2012-11-20

    申请号:US12655247

    申请日:2009-12-28

    IPC分类号: H01G9/00

    摘要: A surface-modified nano graphene platelet (NGP), comprising: (a) a nano graphene platelet having a thickness smaller than 10 nm; and (b) discrete, non-continuous, and non-metallic bumps or nodules bonded to a surface of the graphene platelet to serve as a spacer. When multiple surface-modified NGP sheets are stacked together to form an electrode, large numbers of electrolyte-accessible pores are formed, enabling the formation of large amounts of double layer charges in a supercapacitor, which exhibits an exceptionally high specific capacitance.

    摘要翻译: 一种表面改性的纳米石墨烯血小板(NGP),包括:(a)厚度小于10nm的纳米石墨烯血小板; 和(b)结合到石墨烯薄片的表面上的离散的,非连续的和非金属的凸起或结节用作间隔物。 当多个表面改性的NGP片堆叠在一起以形成电极时,形成大量的电解质可接近的孔,使得能够在超级电容器中形成大量的双层电荷,这表现出特别高的比电容。

    Lithium metal-sulfur and lithium ion-sulfur secondary batteries containing a nano-structured cathode and processes for producing same
    5.
    发明申请
    Lithium metal-sulfur and lithium ion-sulfur secondary batteries containing a nano-structured cathode and processes for producing same 有权
    含有纳米结构阴极的锂金属硫和锂离子 - 硫二次电池及其制造方法

    公开(公告)号:US20110165466A1

    公开(公告)日:2011-07-07

    申请号:US12655597

    申请日:2010-01-04

    IPC分类号: H01M4/58 H01M10/04

    摘要: An electrochemical cell comprising an anode, electrolyte or an electrolyte/separator combination, and a nano-structured cathode, wherein the cathode comprises: (a) an integrated nano-structure of electrically conductive nanometer-scaled filaments that are interconnected to form a porous network of electron-conducting paths comprising pores with a size smaller than 100 nm (preferably smaller than 10 nm), wherein the filaments have a transverse dimension less than 500 nm (preferably less than 100 nm); and (b) powder or salt of lithium-containing sulfide (lithium polysulfide) disposed in the pores, or a thin coating of lithium-containing sulfide deposited on a nano-scaled filament surface wherein the lithium-containing sulfide is in contact with, dispersed in, or dissolved in electrolyte liquid and the lithium-containing sulfide-to-filament weight ratio is between 1/10 and 10/1 which is measured when the cell is in a fully discharged state. The cell exhibits an exceptionally high specific energy and a long cycle life.

    摘要翻译: 包括阳极,电解质或电解质/分离器组合和纳米结构阴极的电化学电池,其中所述阴极包括:(a)互连以形成多孔网络的导电纳米级细丝的整体纳米结构 的电子传导路径,其包括尺寸小于100nm(优选小于10nm)的孔,其中所述长丝具有小于500nm(优选小于100nm)的横向尺寸; 和(b)设置在孔中的含锂硫化物(多硫化锂)的粉末或盐,或沉积在纳米级细丝表面上的含锂硫化物的薄涂层,其中所述含锂硫化物与其分散 在电解液中溶解或溶解,并且当电池处于完全放电状态时测量的含锂硫化物与灯丝的重量比为1/10至10/1。 电池表现出特别高的比能量和较长的循环寿命。