Lithium ion phosphate hierarchical structure, method for making the same, and lithium ion battery using the same
    147.
    发明授权
    Lithium ion phosphate hierarchical structure, method for making the same, and lithium ion battery using the same 有权
    磷酸锂离子分层结构,制造方法和使用其的锂离子电池

    公开(公告)号:US08962186B2

    公开(公告)日:2015-02-24

    申请号:US13457554

    申请日:2012-04-27

    CPC classification number: H01M4/5825 C01B25/45

    Abstract: A lithium iron phosphate hierarchical structure includes a plurality of lithium iron phosphate nano sheets and has an overall spherical-shaped structure. The overall spherical-shaped structure is constructed by a plurality of lithium iron phosphate nano sheets layered together. A method for making a lithium iron phosphate hierarchical structure includes several steps. In the method, a lithium ion contained liquid solution, a ferrous ion contained liquid solution, and a phosphate ion contained liquid solution are respectively provided. A concentration of lithium ions in the lithium ion contained liquid solution is equal to or larger than 1.8 mol/L. The lithium ion contained liquid solution, the ferrous ion contained liquid solution, and the phosphate ion contained liquid solution are mixed to form a liquid mixture. The liquid mixture is heated in a sealed reactor to form the lithium iron phosphate hierarchical structure.

    Abstract translation: 磷酸铁锂层状结构包括多个磷酸铁锂纳米片,并且具有整体的球形结构。 整个球形结构由层叠在一起的多个磷酸铁锂纳米片构成。 制备磷酸铁锂层状结构的方法包括几个步骤。 在该方法中,分别设置锂离子液体溶液,含有亚铁离子的液体溶液和含有磷酸根离子的液体溶液。 锂离子含有的液体溶液中的锂离子浓度等​​于或大于1.8mol / L。 锂离子含有的液体溶液,含铁离子的液体溶液和含磷酸根离子的液体溶液混合形成液体混合物。 将液体混合物在密封的反应器中加热以形成磷酸铁锂分层结构。

    Method for making electrode active material of lithium ion battery
    148.
    发明授权
    Method for making electrode active material of lithium ion battery 有权
    锂离子电池电极活性物质的制备方法

    公开(公告)号:US08901251B2

    公开(公告)日:2014-12-02

    申请号:US13668480

    申请日:2012-11-05

    CPC classification number: H01M4/602

    Abstract: A method for making an electrode active material of a lithium ion battery is disclosed. In the method, elemental sulfur is mixed with a polyacrylonitrile to form a mixture. The mixture is heated in vacuum or a protective gas at a heating temperature of about 250° C. to about 500° C., to form a sulfur containing composite. The sulfur containing composite is reacted with a reducing agent for elemental sulfur in a liquid phase medium to remove part of the elemental sulfur from the sulfur containing composite.

    Abstract translation: 公开了制造锂离子电池的电极活性物质的方法。 在该方法中,将元素硫与聚丙烯腈混合以形成混合物。 将混合物在真空或保护气体中加热至约250℃至约500℃,形成含硫复合材料。 含硫复合材料与液相介质中的元素硫还原剂反应,以从含硫复合材料中除去部分元素硫。

    Cathode electrode and lithium ion battery
    150.
    发明授权
    Cathode electrode and lithium ion battery 有权
    阴极电极和锂离子电池

    公开(公告)号:US08865346B2

    公开(公告)日:2014-10-21

    申请号:US13675034

    申请日:2012-11-13

    Abstract: A cathode electrode of a lithium ion battery includes a cathode current collector and a cathode material layer. The cathode material layer is located on a surface of the cathode current collector. The cathode material layer includes a cathode active material. The cathode active material includes sulfur grafted poly(pyridinopyridine). The sulfur grafted poly(pyridinopyridine) includes a poly(pyridinopyridine) matrix and sulfur dispersed in the poly(pyridinopyridine) matrix. The cathode current collector includes a polymer substrate and a graphene layer located on a surface of the polymer substrate adjacent to the cathode material layer. A lithium ion battery using the cathode electrode is also disclosed.

    Abstract translation: 锂离子电池的阴极包括阴极集电体和阴极材料层。 阴极材料层位于阴极集电体的表面。 阴极材料层包括正极活性材料。 阴极活性材料包括接枝硫的聚(吡啶并吡啶)。 硫接枝的聚(吡啶并吡啶)包括分散在聚(吡啶并吡啶)基质中的聚(吡啶并吡啶)基质和硫。 阴极集电器包括聚合物基板和位于聚合物基板的与阴极材料层相邻的表面上的石墨烯层。 还公开了使用阴极电极的锂离子电池。

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