Method for producing lithium vanadium polyanion powders for batteries
    3.
    发明申请
    Method for producing lithium vanadium polyanion powders for batteries 审中-公开
    电池用锂钒聚阴离子粉末的制造方法

    公开(公告)号:US20080305256A1

    公开(公告)日:2008-12-11

    申请号:US12024038

    申请日:2008-01-31

    IPC分类号: B05D3/00 C01B25/45

    CPC分类号: H01M4/5825 C01B25/45

    摘要: This invention relates to a process for producing an improved cathode powder for making lithium ion batteries wherein the powder comprises lithium, vanadium and a polyanion. The process includes forming a solution-suspension of the precursors, which include vanadium pentoxide, with a reducing agent, a solvent, and a carbon-residue-forming material. The reducing agent causes the vanadium in vanadium pentoxide to reduce from V5+ to V3+. The solution-suspension is heated in an inert environment to drive the synthesis of the LVP (Li3V2(PO4)3) such that the carbon-residue-forming material is also oxidized to precipitate in and on the LVP forming carbon-containing LVP or CCLVP. The liquids are separated from the solids and the dry powder is heated to a second higher temperature to drive the crystallization of the product. The resulting product retains a small particle size, includes carbon in the LVP for conductivity and is created with very low cost precursors and avoids the need for milling or other processing to reduce the product to a particle size suitable for use in batteries. It also does not require the addition of carbon black, graphite or other form of carbon to provide the conductivity required for use in batteries.

    摘要翻译: 本发明涉及一种制备用于制备锂离子电池的改进的阴极粉末的方法,其中该粉末包括锂,钒和聚阴离子。 该方法包括形成包含五氧化二钒的前体与还原剂,溶剂和形成碳残留物的溶液的悬浮液。 还原剂使五氧化二钒中的钒从V5 +降低至V3 +。 将溶液 - 悬浮液在惰性环境中加热以驱动LVP(Li 3 V 2(PO 4)3)的合成),使得碳残留物形成材料也被氧化沉淀在LVP形成含碳的LVP或CCLVP中 。 将液体与固体分离,将干燥粉末加热至第二较高温度以驱使产物结晶。 所得到的产品保持小的粒度,包括LVP中的导电性碳,并且以非常低成本的前体产生,并且避免需要研磨或其它加工以将产品降低至适合用于电池的粒度。 它也不需要添加炭黑,石墨或其他形式的碳,以提供用于电池所需的电导率。

    Oxidative conversion of organic compounds
    9.
    发明授权
    Oxidative conversion of organic compounds 失效
    有机化合物的氧化转化

    公开(公告)号:US4994598A

    公开(公告)日:1991-02-19

    申请号:US484033

    申请日:1990-02-22

    摘要: A method for the oxidative conversion of feed organic compounds to product organic compounds, particularly, the conversion of toluene to bibenzyl and stilbene and the conversion of acetonitrile to acrylonitrile, in which the feed compounds are contacted with a free oxygen-containing gas and a contact material, comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen; at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen; at least one Group IA metal or Group IIA metal, phosphorous and oxygen; cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen; or cobalt, at least one Group IA metal, silicon and oxygen.

    摘要翻译: 用于将进料有机化合物氧化转化成产物有机化合物的方法,特别是将甲苯转化为联苄和1,2-二苯乙烯以及将乙腈转化为丙烯腈,其中进料化合物与游离含氧气体和接触 材料,包含至少一种IIA族金属或镧和氧; 至少两种IIA族金属,镧系金属,锌或钛和氧; 至少一种IA族金属,至少一种IIA族金属,镧系金属,锌或钛和氧; 至少一种IA族金属或IIA族金属,磷和氧; 钴,锆,锌,镍,铟,铅或铋,磷,至少一种IA族金属和氧中的至少一种; 或钴,至少一种IA族金属,硅和氧。

    Composition of matter and method of oxidative conversion of organic
compounds therewith
    10.
    发明授权
    Composition of matter and method of oxidative conversion of organic compounds therewith 失效
    有机化合物的物质组成和氧化转化方法

    公开(公告)号:US4658077A

    公开(公告)日:1987-04-14

    申请号:US742340

    申请日:1985-06-07

    摘要: A solid composition of matter is disclosed consisting essentially of sodium, potassium, a Group IA metal or a Group IA metal and a Group IIA metal, titanium, oxygen and, optionally, at least one of a halogen and tin, in which at least one of the sodium, the potassium, the Group IA metal or the Group IIA metal is present in an amount in excess of any amount present in electrically neutral compounds of the metal, the titanium and oxygen.The above compositions are particularly useful as solid contact materials for the oxidative conversion of feed organic compounds to product organic compounds, particularly in the presence of a free oxygen containing gas. A method for such conversion is also disclosed.In a preferred embodiment a method for the oxidative conversion of methane, such as natural gas, to higher hydrocarbons, particularly ethylene and ethane, is disclosed in which the methane and a free oxygen containing gas are contacted with a Group IA metal, a Group IIA metal, or a Groun IA metal and a Group IIA metal, titanium, oxygen and, optionally, a halogen and/or tin.

    摘要翻译: 公开的物质的固体组合物基本上由钠,钾,IA族金属或IA族金属和IIA族金属,钛,氧和任选的至少一种卤素和锡组成,其中至少一种 的钠,钾,IA族金属或IIA族金属的存在量超过存在于金属,钛和氧的电中性化合物中的任何量。 上述组合物特别可用作用于将进料有机化合物氧化转化成产物有机化合物的固体接触材料,特别是在含游离氧气体的存在下。 还公开了这种转化的方法。 在优选的实施方案中,公开了将甲烷(例如天然气)氧化转化成高级烃,特别是乙烯和乙烷的方法,其中甲烷和含游离氧的气体与IA族金属,IIA族 金属或Groun IA金属和IIA族金属,钛,氧和任选的卤素和/或锡。