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    • 5. 发明申请
    • Secondary battery material
    • 二次电池材料
    • US20090208844A1
    • 2009-08-20
    • US12315809
    • 2008-12-04
    • Keith D. KeplerYu WangHongjian Liu
    • Keith D. KeplerYu WangHongjian Liu
    • H01M4/58H01M4/26
    • H01M4/625H01M4/366H01M4/38H01M4/386H01M4/387H01M10/052
    • Embodiments of the invention relate to materials used in secondary batteries and the method for manufacturing the same. To address the problems of the prior art, an object of the present invention is to provide a negative electrode material for a non-aqueous Li-ion cell comprising active component particles capable of reversibly intercalating or alloying with lithium ions with a carbon coating layer containing an electronically conductive, elastic, carbon material capable of reversibly expanding and contracting to maintain electrical contact between the particles within an electrode matrix as the material is cycled electrochemically. Accordingly, several objects and advantages of embodiments of the invention include improved cycle life of high capacity active materials suitable for use in secondary batteries and the high capacity, long life cells.
    • 本发明的实施方式涉及二次电池中使用的材料及其制造方法。 为了解决现有技术的问题,本发明的目的是提供一种用于非水Li离子电池的负极材料,其包括能够与锂离子可逆地嵌入或合金化的活性组分颗粒和含有 一种电子导电的,弹性的碳材料,其能够可逆地膨胀和收缩,以在材料循环电化学地维持电极基质内的颗粒之间的电接触。 因此,本发明实施方案的几个目的和优点包括适用于二次电池和高容量,长寿命的电池的高容量活性材料的循环寿命的改善。
    • 7. 发明申请
    • Secondary battery material
    • 二次电池材料
    • US20090202914A1
    • 2009-08-13
    • US12315807
    • 2008-12-04
    • Keith D. KeplerHongjian Liu
    • Keith D. KeplerHongjian Liu
    • H01M4/58H01B1/02
    • H01B1/02H01M4/58H01M10/0525
    • Disclosed herein is a composite material for use as an anode for Li-ion batteries and its preparation method and use. The composite material comprises the components represented by the following formula: Ma1-Xa2—Sed1—Yd2—Cc in which, M represents one or more selected from Sn, Al, Pb, Sb, Si and Bi; X represents one or more selected from Cu, V, Co, Ti, Mo, Mg, W and Zn; Y represents Si and/or Ge; and a1, a2, d1, d2 and c represent the weight ratio of M, X, Se, Y and C to the total amount of M, X, Se, Y and C, respectively, wherein a1+a2 is equal to 0.4-0.7, d1+d2 is equal to 0.05-0.6, c is equal to 0.01-0.25, d2/d1 ranges from 0 to 1/1.4, and a2/a1 ranges from 0 to 1/1.5.
    • 本文公开了一种用作锂离子电池阳极的复合材料及其制备方法和用途。 复合材料包含由下式表示的组分:<?in-line-formula description =“In-line Formulas”end =“lead”?> Ma1-Xa2-Sed1-Yd2-Cc <?in-line-formula 描述=“In-line Formulas”end =“tail”?>其中,M表示从Sn,Al,Pb,Sb,Si和Bi中选出的一种或多种; X表示选自Cu,V,Co,Ti,Mo,Mg,W和Zn中的一种或多种; Y表示Si和/或Ge; a1,a2,d1,d2和c分别表示M,X,Se,Y和C与M,X,Se,Y和C的总量的重量比,其中a1 + a2等于0.4- 0.7,d1 + d2等于0.05-0.6,c等于0.01-0.25,d2 / d1的范围为0至1 / 1.4,a2 / a1的范围为0至1 / 1.5。