Method for recovering oil from an underground formation
    4.
    发明授权
    Method for recovering oil from an underground formation 失效
    从地下地层回收油的方法

    公开(公告)号:US4364431A

    公开(公告)日:1982-12-21

    申请号:US217445

    申请日:1980-12-17

    CPC分类号: C09K8/584 E21B43/17 E21B43/20

    摘要: Method for recovering oil from an underground formation consisting of blocks of relatively low permeability with an oil-wet pore space containing oil surrounded by a fracture network of relatively high permeability by supplying to the fracture network an aqueous solution of a surfactant adapted for decreasing the surface tension between water and oil and displacing the oil from the oil-wet pore space of the blocks.

    摘要翻译: 从具有相对低渗透性的块的地下地层中回收油的方法,所述地下地层由具有相对较高渗透性的断裂网络包围的油的油 - 湿孔隙区域提供,所述油层通过向断裂网络供给适于减少表面的表面活性剂的水溶液 水和油之间的张力,并从块的油 - 湿孔隙中移出油。

    SYNTHESIS OF CATHODE ACTIVE MATERIALS
    5.
    发明申请
    SYNTHESIS OF CATHODE ACTIVE MATERIALS 审中-公开
    阴极活性材料的合成

    公开(公告)号:US20080099720A1

    公开(公告)日:2008-05-01

    申请号:US11968783

    申请日:2008-01-03

    IPC分类号: C01B25/30 H01M4/48

    摘要: The present invention relates to a method for preparing an electroactive metal polyanion or a mixed metal polyanion comprising forming a slurry comprising a polymeric material, a solvent, a polyanion source or alkali metal polyanion source and at least one metal ion source; heating said slurry at a temperature and for a time sufficient to remove the solvent and form an essentially dried mixture; and heating said mixture at a temperature and for a time sufficient to produce an electroactive metal polyanion or electroactive mixed metal polyanion. The electrochemically active materials so produced are useful in making electrodes and batteries.

    摘要翻译: 本发明涉及一种制备电活性金属聚阴离子或混合金属聚阴离子的方法,包括形成包含聚合材料,溶剂,聚阴离子源或碱金属聚阴离子源和至少一种金属离子源的浆料; 在足以除去溶剂并形成基本上干燥的混合物的温度和时间下加热所述浆料; 并在足以产生电活性金属聚阴离子或电活性混合金属聚阴离子的温度和时间下加热所述混合物。 所生产的电化学活性材料可用于制造电极和电池。

    Methods Of Making Transition Metal Compounds Useful As Cathode Active Materials
    6.
    发明申请
    Methods Of Making Transition Metal Compounds Useful As Cathode Active Materials 审中-公开
    过渡金属化合物用作阴极活性材料的方法

    公开(公告)号:US20080020277A1

    公开(公告)日:2008-01-24

    申请号:US11842191

    申请日:2007-08-21

    IPC分类号: H01M4/58 H01M4/48 H01M4/62

    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。

    Electrodes Comprising Mixed Active Particles
    8.
    发明申请
    Electrodes Comprising Mixed Active Particles 有权
    包含混合活性颗粒的电极

    公开(公告)号:US20060194112A1

    公开(公告)日:2006-08-31

    申请号:US11381602

    申请日:2006-05-04

    摘要: Electrode active materials comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from: (a) materials of the formula A1aM1b(XY4)cZd; and (b) materials of the formula A2eM2fOg; and wherein (i) A1, A2, and A3 are Li, Na, or K; (ii) M1 and M3 comprise a transition metal; (iv) XY4 a phosphate or similar moiety; and (v) Z is OH, or halogen.

    摘要翻译: 包含两组或更多组具有不同化学组成的颗粒的电极活性材料,其中每组颗粒包含选自以下的材料:(a)式A的材料 (XY 4)C 1 C 1 H 2 O 2(X 4) 和(b)式A的物质 >; 并且其中(i)A 1,A 2和A 3是Li,Na或K; (ii)M 1和M 3 3包含过渡金属; (iv)磷酸酯或类似部分的XY 4; 和(v)Z是OH或卤素。