利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

143 条记录 (耗时 0.041 秒)

    Product and method for the processing of precursors for lithium phosphate active materials
    32.
    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

    申请人： George Adamson ,  Jeremy Barker ,  Allan Dirilo ,  Titus Faulkner ,  M. Saidi ,  Jeffrey Swoyer

    发明人： George Adamson ,  Jeremy Barker ,  Allan Dirilo ,  Titus Faulkner ,  M. Saidi ,  Jeffrey Swoyer

    IPC分类号： H01M4/58 ,  H01M10/052 ,  H01M10/36

    CPC分类号： H01M4/5825 ,  H01M4/582 ,  H01M10/052

    摘要： 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.

    摘要翻译： 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
    35.
    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

    申请人： Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer ,  Ming Dong

    发明人： Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer ,  Ming Dong

    IPC分类号： C01B2530

    CPC分类号： H01M4/5825 ,  C01B25/37 ,  C01B25/45 ,  C01G21/00 ,  C01G31/00 ,  C01G39/00 ,  C01P2006/40 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/582 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  Y10T29/10 ,  Y10T156/1002

    摘要： 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.

    摘要翻译： 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。

    Lithium-based active materials and preparation thereof
    36.
    发明授权
    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：US06723470B2

    公开(公告)日：2004-04-20

    申请号：US09908480

    申请日：2001-07-18

    申请人： Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer

    发明人： Jeremy Barker ,  M. Yazid Saidi ,  Jeffrey L. Swoyer

    IPC分类号： H01M458

    CPC分类号： H01M4/136 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/028

    摘要： 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.

    摘要翻译： 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。

    Active material having extended cycle life
    38.
    发明授权
    Active material having extended cycle life 有权
    活性物质具有延长的循环寿命

    公开(公告)号：US06468695B1

    公开(公告)日：2002-10-22

    申请号：US09376914

    申请日：1999-08-18

    申请人： Jeremy Barker

    发明人： Jeremy Barker

    IPC分类号： H01M450

    CPC分类号： H01M4/505 ,  C01G45/1242 ,  C01P2002/32 ,  C01P2002/77 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/1391 ,  H01M10/0525

    摘要： In one embodiment, the invention provides a novel composition which is stabilized against decomposition when used as an active material for an electrochemical cell. The active material of the present invention comprises particles of spinel lithium manganese oxide (LMO) enriched with lithium by a decomposition product of lithium hydroxide forming a part of each of the LMO particles. The spinel LMO product formed by the decomposition of lithium hydroxide in the presence of the LMO is characterized by a reduced surface area and increased capacity retention (reduced capacity fading) as compared to the initial, non-treated, non-enriched spinel. In another aspect, the treated spinel LMO product is combined with lithium carbonate in a cathode mixture.

    摘要翻译： 在一个实施方案中，本发明提供了当用作电化学电池的活性材料时稳定的抗分解的新型组合物。 本发明的活性物质包含由氢氧化锂的分解产物富含锂的尖晶石锂锰氧化物（LMO），形成每种LMO颗粒的一部分。 在LMO存在下通过氢氧化锂分解形成的尖晶石LMO产物的特征在于与初始的未处理的非富集尖晶石相比，表面积减小并且容量保持率（降低的容量衰减）降低。 另一方面，将经处理的尖晶石LMO产物与阴极混合物中的碳酸锂混合。