HIGH CAPACITY ELECTRODE AND METHODS FOR ITS FABRICATION AND USE
    1.
    发明申请
    HIGH CAPACITY ELECTRODE AND METHODS FOR ITS FABRICATION AND USE 审中-公开
    高容量电极及其制造和使用方法

    公开(公告)号:WO2007053704A2

    公开(公告)日:2007-05-10

    申请号:PCT/US2006/042700

    申请日:2006-10-31

    Abstract: A battery electrode comprises an electrically conductive substrate having an electrochemically active electrode composition supported thereupon. The composition includes an active material capable of reversibly alloying with lithium, which material shows a volume change upon such reversible alloying. The composition includes a buffering agent which accommodates the volume change in the active material and minimizes mechanical strain in the composition. The active composition may further include materials such as carbon. The active material may comprise silicon, aluminum, antimony, antimony oxides, bismuth, bismuth oxides, tin, tin oxides, chromium, chromium oxides, tungsten, and tungsten oxides or lithium alloys of the foregoing. The buffering agent may comprise a metal or a metal oxide or lithium alloys of the foregoing. Also disclosed are batteries which incorporate these electrodes, methods for the fabrication of the electrodes and methods for the fabrication and operation of the batteries.

    Abstract translation: 电池电极包括具有支撑在其上的电化学活性电极组合物的导电基底。 该组合物包括能够与锂可逆合金化的活性材料,该材料在这种可逆合金化时显示体积变化。 该组合物包括缓冲剂,其适应活性材料中的体积变化并使组合物中的机械应变最小化。 活性组合物还可以包括诸如碳的材料。 活性材料可以包括上述的硅,铝,锑,氧化锑,铋,氧化铋,锡,锡氧化物,铬,铬氧化物,钨和氧化钨或锂合金。 缓冲剂可以包含上述的金属或金属氧化物或锂合金。 还公开了包含这些电极的电池,用于制造电极的方法以及用于制造和操作电池的方法。

    METHOD FOR MAKING A COMPOSITE ELECTRODE MATERIAL
    2.
    发明申请
    METHOD FOR MAKING A COMPOSITE ELECTRODE MATERIAL 审中-公开
    制备复合电极材料的方法

    公开(公告)号:WO2006050422A3

    公开(公告)日:2006-10-26

    申请号:PCT/US2005039625

    申请日:2005-11-02

    Abstract: A composite material includes first phase which comprises Li x M y (PO 4 ) z wherein M is at least one metal, y and z are independently 0, and x is less than or equal to 1. The material includes a second phase which has an electronic and/or lithium ion conductivity greater than that of the first phase. The material is prepared by heating a starting mixture which includes lithium, iron, a phosphate ion, and a catalyst in a reducing atmosphere. Also disclosed are electrodes which incorporate the material and batteries which utilize those electrodes as cathodes.

    Abstract translation: 复合材料包括第一相和第二相,所述第一相包含Li M y (PO 4 z ,其中M至少为 一种金属,y和z独立地为0,并且x小于或等于1.该材料包括具有比第一相的电子和/或锂离子电导率大的第二相。 该材料通过在还原气氛中加热包含锂,铁,磷酸根离子和催化剂的起始混合物来制备。 还公开了结合利用这些电极作为阴极的材料和电池的电极。

    COMPOSITE ELECTROCHEMICAL MATERIAL
    3.
    发明申请

    公开(公告)号:WO2006050423A3

    公开(公告)日:2006-05-11

    申请号:PCT/US2005/039626

    申请日:2005-11-02

    Abstract: A composite material includes a first phase which is present in the form of a plurality of particles comprised of a material having the general formula Li x M y (PO 4 ) z wherein M is at least one metal, x is equal to or greater than zero, and y and z are each, independently, greater than zero. The material includes a second phase which is at least partially present in the form of a plurality of elongated filaments which extend between and establish electrical contact with at least two particles of the first phase. The filaments are comprised of a material which includes phosphorus and at least one of the at least one metal M. The material of the second phase has an electrical conductivity which is greater than the electrical conductivity of the material of the first phase. Also disclosed are methods for manufacturing the material. The material has utility as an electrode material for devices such as lithium batteries.

    HIGH CAPACITY ELECTRODE AND METHODS FOR ITS FABRICATION AND USE
    5.
    发明申请
    HIGH CAPACITY ELECTRODE AND METHODS FOR ITS FABRICATION AND USE 审中-公开
    高容量电极及其制备和使用方法

    公开(公告)号:WO2007053704A3

    公开(公告)日:2007-10-04

    申请号:PCT/US2006042700

    申请日:2006-10-31

    Abstract: A battery electrode comprises an electrically conductive substrate having an electrochemically active electrode composition supported thereupon. The composition includes an active material capable of reversibly alloying with lithium, which material shows a volume change upon such reversible alloying. The composition includes a buffering agent which accommodates the volume change in the active material and minimizes mechanical strain in the composition. The active composition may further include materials such as carbon. The active material may comprise silicon, aluminum, antimony, antimony oxides, bismuth, bismuth oxides, tin, tin oxides, chromium, chromium oxides, tungsten, and tungsten oxides or lithium alloys of the foregoing. The buffering agent may comprise a metal or a metal oxide or lithium alloys of the foregoing. Also disclosed are batteries which incorporate these electrodes, methods for the fabrication of the electrodes and methods for the fabrication and operation of the batteries.

    Abstract translation: 电池电极包含导电基底,所述导电基底具有负载在其上的电化学活性电极组合物。 该组合物包含能够与锂可逆合金化的活性材料,该材料在这种可逆合金化时表现出体积变化。 该组合物包含缓冲剂,其容纳活性材料中的体积变化并使组合物中的机械应变最小化。 活性组合物可以进一步包含诸如碳的材料。 活性材料可以包括前述的硅,铝,锑,氧化锑,铋,氧化铋,锡,氧化锡,铬,氧化铬,钨和氧化钨或锂合金。 缓冲剂可以包含前述的金属或金属氧化物或锂合金。 还公开了包含这些电极的电池,用于制造电极的方法以及用于制造和操作电池的方法。

    HIGH PERFORMANCE COMPOSITE ELECTRODE MATERIALS
    6.
    发明申请
    HIGH PERFORMANCE COMPOSITE ELECTRODE MATERIALS 审中-公开
    高性能复合电极材料

    公开(公告)号:WO2007035584A2

    公开(公告)日:2007-03-29

    申请号:PCT/US2006/036201

    申请日:2006-09-15

    Abstract: A composite electrode material is fabricated from a first electroactive material which, when incorporated into a cathode of a rechargeable battery, manifests a first mean voltage, a first energy density and a first high cutoff voltage cycle life; and a second electroactive material which, when incorporated into a cathode of the rechargeable battery, manifests a second mean voltage which is less than the first mean voltage, a second energy density which is less than the first energy density, and a second high voltage cutoff cycle life which is greater than the first cycle life. The composite material is characterized in that when it is incorporated into a cathode of the rechargeable battery, it manifests at least one of: a third mean voltage which is greater than the second mean voltage, a third energy density which is greater than the second energy density, and a third high cutoff voltage cycle life which is greater than the first cycle life. The rate performance of the second material, when incorporated into a rechargeable battery, may be greater than the rate performance of the first material when incorporated into the rechargeable battery, and the rate performance of the composite material^ when incorporated into a cathode of the rechargeable battery, is greater than the first, rate performance. The composite material may include a simple mixture of particles of the first and second materials, or may comprise a complex structure such as a core/shell structure wherein the second material covers a portion of the surface of particles of the first material. Also disclosed herein are electrodes which incorporate the material, batteries which incorporate the electrodes, and methods for making the foregoing.

    Abstract translation: 复合电极材料由第一电活性材料制成,当被并入可再充电电池的阴极时,其显示第一平均电压,第一能量密度和第一高截止电压循环寿命; 以及第二电活性材料,当被结合到可再充电电池的阴极中时,其表现出小于第一平均电压的第二平均电压,小于第一能量密度的第二能量密度和第二高电压截止值 循环寿命大于第一循环寿命。 复合材料的特征在于,当其被并入可再充电电池的阴极时,其显示出以下至少一个:第三平均电压大于第二平均电压,第三能量密度大于第二能量 密度和大于第一循环寿命的第三高截止电压循环寿命。 第二材料的掺入到可再充电电池中时的速率性能可能大于当掺入到可再充电电池中时第一材料的速率性能,以及复合材料在掺入可再充电电池的阴极时的速率性能 电池,大于第一,率表现。 复合材料可以包括第一和第二材料的颗粒的简单混合物,或者可以包括诸如芯/壳结构的复合结构,其中第二材料覆盖第一材料的颗粒表面的一部分。 本文还公开了结合材料的电极,结合电极的电池,以及制造前述的方法。

    ELECTRODE MATERIAL WITH ENHANCED IONIC TRANSPORT PROPERTIES

    公开(公告)号:WO2006084254A3

    公开(公告)日:2006-08-10

    申请号:PCT/US2006/004220

    申请日:2006-02-03

    Abstract: Materials useful as electrodes for lithium batteries have very good electronic and ionic conductivities. They are fabricated from a starting mixture which includes a metal, a phosphate ion, and an additive which enhances the transport of lithium ions in the resultant material. The mixture is heated in a reducing environment to produce the material. The additive may comprise a pentavalent metal or a carbon. In certain embodiments the material is a two-phase material. Also disclosed are electrodes which incorporate the materials and lithium batteries which incorporate those electrodes.

    COMPOSITE ELECTROCHEMICAL MATERIAL
    8.
    发明申请
    COMPOSITE ELECTROCHEMICAL MATERIAL 审中-公开
    复合电化学材料

    公开(公告)号:WO2006050423A2

    公开(公告)日:2006-05-11

    申请号:PCT/US2005039626

    申请日:2005-11-02

    CPC classification number: H01M4/5825 H01M4/136 H01M10/052

    Abstract: A composite material includes a first phase which is present in the form of a plurality of particles comprised of a material having the general formula Li x M y (PO 4 ) z wherein M is at least one metal, x is equal to or greater than zero, and y and z are each, independently, greater than zero. The material includes a second phase which is at least partially present in the form of a plurality of elongated filaments which extend between and establish electrical contact with at least two particles of the first phase. The filaments are comprised of a material which includes phosphorus and at least one of the at least one metal M. The material of the second phase has an electrical conductivity which is greater than the electrical conductivity of the material of the first phase. Also disclosed are methods for manufacturing the material. The material has utility as an electrode material for devices such as lithium batteries.

    Abstract translation: 复合材料包括第一相和第二相,第一相以多种颗粒的形式存在,所述多个颗粒由具有通式Li x M y (PO 4 其中M是至少一种金属,x等于或大于零,并且y和z各自独立地大于零。 所述材料包括第二相,所述第二相至少部分以多个细长丝的形式存在,所述细丝在所述第一相的至少两个颗粒之间延伸并与其建立电接触。 长丝由包含磷和至少一种金属M中的至少一种的材料构成。第二相的材料具有比第一相的材料的电导率更大的电导率。 还公开了用于制造该材料的方法。 该材料可用作锂电池等器件的电极材料。

    COMPOSITE MATERIAL AND ELECTRODES MADE THEREFROM
    10.
    发明申请
    COMPOSITE MATERIAL AND ELECTRODES MADE THEREFROM 审中-公开
    复合材料和由此制造的电极

    公开(公告)号:WO2004068616A2

    公开(公告)日:2004-08-12

    申请号:PCT/US2004002470

    申请日:2004-01-29

    Abstract: A composite material having utility as a cathode material for a lithium ion battery includes a first component which is a metal phosphate and a second component which is a metal nitride, a metal oxynitride, or a mixture of the two. The second component is coated on, or dispersed through the bulk of, the first component. The metal phosphate may be a lithiated metal phosphate and may be based upon one or more transition metals. Also disclosed is a method for preparing the material as well as electrodes fabricated from the material and lithium ion cells which include such electrodes.

    Abstract translation: 具有作为锂离子电池用正极材料的用途的复合材料包含作为金属磷酸盐的第一成分和作为金属氮化物的第二成分,金属氧氮化物或它们的混合物。 第二组分被涂覆或散布在第一组分的大部分上。 金属磷酸盐可以是锂化的金属磷酸盐,并且可以基于一种或多种过渡金属。 还公开了用于制备该材料的方法以及由该材料制造的电极以及包括这种电极的锂离子电池。

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