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    Tin in an active support matrix
    1.
    发明授权
    Tin in an active support matrix 有权
    锡在一个积极的支持矩阵

    公开(公告)号：US08039152B2

    公开(公告)日：2011-10-18

    申请号：US11695975

    申请日：2007-04-03

    申请人： Monique Richard ,  Kimber L. Stamm ,  Liya Wang ,  Shih-Chieh Yin ,  Pu Zhang ,  Suresh Mani ,  Junqing Ma ,  Brian Glomski

    发明人： Monique Richard ,  Kimber L. Stamm ,  Liya Wang ,  Shih-Chieh Yin ,  Pu Zhang ,  Suresh Mani ,  Junqing Ma ,  Brian Glomski

    IPC分类号： H01M4/62 ,  H01M4/13

    CPC分类号： H01M4/136 ,  H01M4/485 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

    摘要： An anode material made from nanoparticles, said anode material including a homogeneous mixture of lithium-alloying nanoparticles with active support matrix nanoparticles, is provided. The active support matrix nanoparticle is a compound that participates in the conversion reaction of the lithium battery. The compound is preferably a transition metal compound, with said compound including a nitride, carbide, oxide or combination thereof. An electrode manufactured from the anode material preferably has a porosity of between 5 and 80% and more preferably has a porosity between 10 and 50%. The anode material nanoparticles preferably have a mean linear dimension of between 2 and 500 nanometers, and more preferably have a mean linear dimension of between 2 and 50 nanometers.

    摘要翻译： 提供由纳米颗粒制成的阳极材料，所述阳极材料包括锂合金纳米颗粒与活性载体基质纳米颗粒的均匀混合物。 活性载体基质纳米颗粒是参与锂电池的转化反应的化合物。 化合物优选为过渡金属化合物，所述化合物包括氮化物，碳化物，氧化物或其组合。 由阳极材料制成的电极的孔隙率优选为5〜80％，更优选具有10〜50％的孔隙率。 阳极材料纳米颗粒优选具有2至500纳米的平均线性尺寸，更优选具有2至50纳米的平均线性尺寸。

    Ferric phosphate and methods of preparation thereof
    5.
    发明授权
    Ferric phosphate and methods of preparation thereof 有权
    磷酸铁及其制备方法

    公开(公告)号：US09174846B2

    公开(公告)日：2015-11-03

    申请号：US12885907

    申请日：2010-09-20

    申请人： Larry W. Beck ,  Mahrokh Soltani ,  Liya Wang

    发明人： Larry W. Beck ,  Mahrokh Soltani ,  Liya Wang

    IPC分类号： C01B15/16 ,  C01B25/26 ,  C01G1/00 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  C22B1/00 ,  C22B23/00 ,  C01B25/37 ,  H01M4/136 ,  H01M4/58 ,  H01M10/052

    CPC分类号： C01B25/375 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

    摘要： High-purity crystalline ferric phosphate material with desirable characteristics for use in synthesis of nano-sized LFP cathode material are described. The ferric phosphate dihydrate material has as disclosed herein has a molar ratio of phosphorous to iron is from about 1.001 to about 1.05, a surface area of from about 25 m2/g to about 65 m2/g, and is substantially free of metallic or magnetic impurities. Methods of synthesizing high-purity crystalline ferric phosphate material with desirable characteristics for use in synthesis of nano-sized LFP cathode material are also described. In some embodiments, one or more magnetic traps are used during the reaction process and/or after the formation of the final product to remove magnetic impurities. In some embodiments, a synthetic method of ferric phosphate using multiple steps is described, wherein the intermediate of the synthesis is isolated and purified to improve the purity of the ferric phosphate material. In some embodiments, an iron compound is added to an aqueous solution of phosphoric acid. The solution pH and temperature are controlled to ensure the complete dissolution of the iron compound. The desired iron phosphate crystalline material can be obtained with high purity and high crystalline phase purity by controlling the pH and temperature of the solution.

    摘要翻译： 描述了用于合成纳米尺寸LFP阴极材料的具有期望特性的高纯度结晶磷酸铁材料。 如本文所公开的，磷酸铁二水合物材料的磷与铁的摩尔比为约1.001至约1.05，表面积为约25m 2 / g至约65m 2 / g，并且基本上不含金属或磁性 杂质。 还描述了合成用于纳米尺寸LFP阴极材料的合成的具有期望特性的高纯度结晶磷酸铁材料的方法。 在一些实施方案中，在反应过程中和/或形成最终产物之后使用一个或多个磁捕获器以除去磁性杂质。 在一些实施方案中，描述了使用多个步骤的磷酸铁的合成方法，其中分离和纯化合成的中间体以提高磷酸铁材料的纯度。 在一些实施方案中，将铁化合物加入到磷酸水溶液中。 控制溶液的pH和温度以确保铁化合物的完全溶解。 通过控制溶液的pH和温度可以获得具有高纯度和高结晶相纯度的所需磷酸铁晶体材料。

    Composite material and electrodes made therefrom
    7.
    发明授权
    Composite material and electrodes made therefrom 失效
    复合材料和由其制成的电极

    公开(公告)号：US07326494B2

    公开(公告)日：2008-02-05

    申请号：US10766385

    申请日：2004-01-28

    申请人： Liya Wang ,  Chuanjing Xu ,  John M. Miller

    发明人： Liya Wang ,  Chuanjing Xu ,  John M. Miller

    IPC分类号： H01M4/58

    CPC分类号： H01M4/136 ,  H01M4/362 ,  H01M4/48 ,  H01M4/58 ,  H01M4/5825 ,  H01M10/052 ,  H01M2004/028

    摘要： 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.

    摘要翻译： 作为锂离子电池用阴极材料有用的复合材料包括作为金属磷酸盐的第一成分和作为金属氮化物的金属氮氧化物或二者的混合物的第二成分。 第二组分涂覆在第一组分的大部分上或分散在第一组分中。 金属磷酸盐可以是锂化金属磷酸盐，并且可以基于一种或多种过渡金属。 还公开了一种制备材料的方法以及由材料制成的电极和包括这种电极的锂离子电池。

    Mixed metal olivine electrode materials for lithium ion batteries
    8.
    发明授权
    Mixed metal olivine electrode materials for lithium ion batteries 有权
    锂离子电池用混合金属橄榄石电极材料

    公开(公告)号：US08541136B2

    公开(公告)日：2013-09-24

    申请号：US12357008

    申请日：2009-01-21

    申请人： Larry Beck ,  Anthony E. Pullen ,  Chuanjing Xu ,  Liya Wang ,  Phillip Sholtes

    发明人： Larry Beck ,  Anthony E. Pullen ,  Chuanjing Xu ,  Liya Wang ,  Phillip Sholtes

    IPC分类号： H01M4/00 ,  H01M4/50 ,  H01M4/52 ,  H01M4/58 ,  H01M4/88

    CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M10/052 ,  Y02T10/7011

    摘要： A positive electrode material is provided including an electroactive material having one or more phases comprising lithium (Li), an electroactive metal (M), and phosphate (PO4), wherein in the fully lithiated state, the overall composition has a ratio of Li:M ranging from greater than about 1.0 to about 1.3, a ratio of (PO4):M ranging from about 1.0 to about 1.132, M is one or more metals selected from the group consisting of Cr, Mn, Fe, Co, and Ni, and at least one phase includes an olivine lithium electroactive metal phosphate. In some instances, a composite cathode material including an electroactive olivine transition metal phosphate and a lithium and phosphate rich secondary phase is disclosed for use in a lithium ion battery.

    摘要翻译： 提供一种正极材料，其包括具有一种或多种锂（Li），电活性金属（M）和磷酸盐（PO4）的一种或多种相的电活性材料，其中，在完全锂化状态下，总组合物的Li： M的范围为大于约1.0至约1.3，（PO4）:M的范围为约1.0至约1.132，M为选自Cr，Mn，Fe，Co和Ni中的一种或多种金属， 并且至少一相包括橄榄石锂电活性金属磷酸盐。 在一些情况下，公开了一种用于锂离子电池的复合阴极材料，其包括电活性橄榄石过渡金属磷酸盐和富含锂和磷酸盐的第二相。

    FERRIC PHOSPHATE AND METHODS OF PREPARATION THEREOF
    9.
    发明申请
    FERRIC PHOSPHATE AND METHODS OF PREPARATION THEREOF 有权
    磷酸钙及其制备方法

    公开(公告)号：US20110068295A1

    公开(公告)日：2011-03-24

    申请号：US12885907

    申请日：2010-09-20

    申请人： Larry W. BECK ,  Mahrokh SOLTANI ,  Liya WANG

    发明人： Larry W. BECK ,  Mahrokh SOLTANI ,  Liya WANG

    IPC分类号： H01M4/88 ,  C01B25/37

    CPC分类号： C01B25/375 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

    摘要： High-purity crystalline ferric phosphate material with desirable characteristics for use in synthesis of nano-sized LFP cathode material are described. The ferric phosphate dihydrate material has as disclosed herein has a molar ratio of phosphorous to iron is from about 1.001 to about 1.05, a surface area of from about 25 m2/g to about 65 m2/g, and is substantially free of metallic or magnetic impurities. Methods of synthesizing high-purity crystalline ferric phosphate material with desirable characteristics for use in synthesis of nano-sized LFP cathode material are also described. In some embodiments, one or more magnetic traps are used during the reaction process and/or after the formation of the final product to remove magnetic impurities. In some embodiments, a synthetic method of ferric phosphate using multiple steps is described, wherein the intermediate of the synthesis is isolated and purified to improve the purity of the ferric phosphate material. In some embodiments, an iron compound is added to an aqueous solution of phosphoric acid. The solution pH and temperature are controlled to ensure the complete dissolution of the iron compound. The desired iron phosphate crystalline material can be obtained with high purity and high crystalline phase purity by controlling the pH and temperature of the solution.

    摘要翻译： 描述了用于合成纳米尺寸LFP阴极材料的具有期望特性的高纯度结晶磷酸铁材料。 如本文所公开的，磷酸铁二水合物材料的磷与铁的摩尔比为约1.001至约1.05，表面积为约25m 2 / g至约65m 2 / g，并且基本上不含金属或磁性 杂质。 还描述了合成用于纳米尺寸LFP阴极材料的合成的具有期望特性的高纯度结晶磷酸铁材料的方法。 在一些实施方案中，在反应过程中和/或形成最终产物之后使用一个或多个磁捕获器以除去磁性杂质。 在一些实施方案中，描述了使用多个步骤的磷酸铁的合成方法，其中分离和纯化合成的中间体以提高磷酸铁材料的纯度。 在一些实施方案中，将铁化合物加入到磷酸水溶液中。 控制溶液的pH和温度以确保铁化合物的完全溶解。 通过控制溶液的pH和温度可以获得具有高纯度和高结晶相纯度的所需磷酸铁晶体材料。

    Composite material having improved microstructure and method for its fabrication
    10.
    发明申请
    Composite material having improved microstructure and method for its fabrication 审中-公开
    具有改进的微结构的复合材料及其制造方法

    公开(公告)号：US20060019115A1

    公开(公告)日：2006-01-26

    申请号：US11133054

    申请日：2005-05-19

    申请人： Liya Wang ,  Michael Heath ,  John Miller ,  Michael Wixom ,  Suresh Mani

    发明人： Liya Wang ,  Michael Heath ,  John Miller ,  Michael Wixom ,  Suresh Mani

    IPC分类号： H01M4/86

    CPC分类号： B82Y30/00 ,  B22F2998/00 ,  C22C29/067 ,  H01M4/36 ,  H01M4/362 ,  H01M4/58 ,  H01M10/052 ,  Y10T428/12181 ,  C22C1/0491

    摘要： A composite material which may be used as an electrode for a battery or other electrochemical device, or as a catalyst, has a matrix which is one or more metal carbide, metal nitride, metal boride, metal silicide or intermetallic compound. A metallic component is dispersed in the matrix. The metallic component comprises a metal and an agent which increases the melting point of the metal. The metallic component may be nanodispersed in the matrix. A specific material comprises a nanodispersion of tin, alloyed with an element which increases its melting point to at least 600° C., disposed in a matrix of a transition metal carbide or nitride. This material has very good utility as an anode material for lithium batteries. Also disclosed are other compositions as well as methods for manufacturing the compositions.

    摘要翻译： 可以用作电池或其它电化学装置的电极或作为催化剂的复合材料具有作为一种或多种金属碳化物，金属氮化物，金属硼化物，金属硅化物或金属间化合物的基体。 金属成分分散在基质中。 金属组分包括金属和增加金属熔点的试剂。 金属组分可以纳米分散在基质中。 特定材料包括锡的纳米分散体，其与将其熔点增加至至少600℃的元素合金化，设置在过渡金属碳化物或氮化物的基体中。 该材料作为锂电池的负极材料具有非常好的用途。 还公开了其它组合物以及制备组合物的方法。