Lithium-based active materials and preparation thereof
    12.
    发明申请
    Lithium-based active materials and preparation thereof 有权
    锂基活性物质及其制备方法

    公开(公告)号:US20070065724A1

    公开(公告)日:2007-03-22

    申请号:US11355584

    申请日:2006-02-16

    Abstract: The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-mixed metal materials. Methods for making the novel lithium-mixed metal materials and methods for using such lithium-mixed metal materials in electrochemical cells are also provided. The lithium-mixed metal materials comprise lithium and at least one other metal besides lithium. Preferred materials are lithium-mixed metal phosphates which contain lithium and two other metals besides lithium.

    Abstract translation: 本发明提供新的锂混合金属材料,其在电化学相互作用时释放锂离子,并且能够可逆地循环锂离子。 本发明提供一种可再充电锂电池,其包括由新型锂混合金属材料形成的电极。 还提供了制备新的锂复合金属材料的方法和在电化学电池中使用这种锂混合金属材料的方法。 锂混合金属材料除锂之外还包含锂和至少一种其它金属。 优选的材料是除了锂之外还含有锂和另外两种金属的锂混合金属磷酸盐。

    Oligo phosphate-based electrode active materials and methods of making same
    14.
    发明授权
    Oligo phosphate-based electrode active materials and methods of making same 有权
    磷酸磷酸酯基电极活性材料及其制备方法

    公开(公告)号:US07008566B2

    公开(公告)日:2006-03-07

    申请号:US10409849

    申请日:2003-04-08

    CPC classification number: H01M4/5825 H01B1/08

    Abstract: The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode includes an active material having an alkali metal-containing oligo phosphate-based electrode active material.

    Abstract translation: 本发明提供了一种电化学电池,其包括第一电极和第二电极,第二电极是与所述第一电极对置的电极,以及介于其间的电解质材料。 第一电极包括具有含碱金属的磷酸酯类磷酸酯类电极活性物质的活性物质。

    Product and method for the processing of precursors for lithium phosphate active materials
    17.
    发明申请
    Product and method for the processing of precursors for lithium phosphate active materials 失效
    用于处理磷酸锂活性物质前体的产品和方法

    公开(公告)号:US20050194567A1

    公开(公告)日:2005-09-08

    申请号:US10961673

    申请日:2004-10-08

    CPC classification number: H01M4/5825 H01M4/582 H01M10/052

    Abstract: Methods for producing an electrode active material precursor, comprising: a) producing a mixture comprising particles of lithium hydrogen phosphate, having a first average particle size, and a metal hydroxide, having a second average particle size; and b) grinding said mixture in a jet mill for a period of time suitable to produce a generally homogeneous mixture of particles having a third average size smaller than said first average size. The precursor may be used as a starting material for making electrode active materials for use in a battery, comprising lithium, a transition metal, and phosphate or a similar anion.

    Abstract translation: 一种制备电极活性材料前体的方法,包括:a)制备具有第二平均粒径的具有第一平均粒度的磷酸氢锂颗粒和金属氢氧化物的混合物; 以及b)在喷射式研磨机中研磨所述混合物一段适当的时间,以生产具有比所述第一平均尺寸小的第三平均尺寸的颗粒的均匀混合物。 前体可以用作用于制造用于电池的电极活性材料的起始材料,其包括锂,过渡金属和磷酸盐或类似的阴离子。

    Methods of making transition metal compounds useful as cathode active materials
    20.
    发明授权
    Methods of making transition metal compounds useful as cathode active materials 有权
    制备用作阴极活性材料的过渡金属化合物的方法

    公开(公告)号:US06730281B2

    公开(公告)日:2004-05-04

    申请号:US10150353

    申请日:2002-05-17

    Abstract: A method for carrying out solid state reactions under reducing conditions is provided. Solid state reactants include at least one inorganic metal compound and a source of reducing carbon. The reaction may be carried out in a reducing atmosphere in the presence of reducing carbon. Reducing carbon may be supplied by elemental carbon, by an organic material, or by mixtures. The organic material is one that can form decomposition products containing carbon in a form capable of acting as a reductant. The reaction proceeds without significant covalent incorporation of organic material into the reaction product. In a preferred embodiment, the solid state reactants also include an alkali metal compound. The products of the method find use in lithium ion batteries as cathode active materials. Preferred active materials include lithium-transition metal phosphates and lithium-transition metal oxides. In a preferred embodiment, the reaction product contains carbon particles intimately mixed among crystals of the active materials.

    Abstract translation: 提供了一种在还原条件下进行固态反应的方法。 固态反应物包括至少一种无机金属化合物和还原性碳源。 反应可以在还原性碳存在下在还原气氛中进行。 还原碳可以由元素碳,有机材料或混合物来提供。 有机材料可以形成能够作为还原剂形式的含有碳的分解产物。 反应进行而没有将有机材料显着共价掺入反应产物中。 在优选的实施方案中,固态反应物还包括碱金属化合物。 该方法的产品可用于锂离子电池作为阴极活性材料。 优选的活性材料包括锂 - 过渡金属磷酸盐和锂 - 过渡金属氧化物。 在优选的实施方案中,反应产物含有在活性物质晶体之间密切混合的碳颗粒。

Patent Agency Ranking