Organic electrolytic solution and lithium battery employing the same
    51.
    发明申请
    Organic electrolytic solution and lithium battery employing the same 有权
    有机电解液和采用其的锂电池

    公开(公告)号:US20060281010A1

    公开(公告)日:2006-12-14

    申请号:US11451716

    申请日:2006-06-12

    IPC分类号: H01M10/40

    摘要: An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and an acetate derivative including two or more substituted silyl groups as an additive. The organic electrolytic solution and the lithium battery employing the same relatively suppress a reduction decomposition of a polar solvent and decrease irreversible capacity in the first cycle. Thus, the charge/discharge efficiency, lifespan, and reliability of the battery can be improved.

    摘要翻译: 提供有机电解液和使用其的锂电池。 有机电解液包括:锂盐; 含有高介电常数溶剂和低沸点溶剂的有机溶剂; 和含有2个以上取代甲硅烷基的乙酸酯衍生物作为添加剂。 有机电解液和使用该有机电解液的锂电池相对抑制极性溶剂的还原分解并降低第一循环中的不可逆容量。 因此,可以提高电池的充电/放电效率,寿命和可靠性。

    Composite anode active material, anode including the same and lithium battery using the anode
    52.
    发明授权
    Composite anode active material, anode including the same and lithium battery using the anode 有权
    复合阳极活性材料,阳极包括它们和使用阳极的锂电池

    公开(公告)号:US08906554B2

    公开(公告)日:2014-12-09

    申请号:US12120262

    申请日:2008-05-14

    摘要: A composite anode active material includes a composite of a carbon-based anode active material, a metal-based anode active material and polymer particles. By increasing the conductivity of the composite anode active material, a lithium battery having a large capacity, high initial efficiency, high rate capability and improved cycle life performance can be obtained. An anode includes the composite anode active material and a lithium battery includes the anode.

    摘要翻译: 复合阳极活性材料包括碳基阳极活性材料,金属基阳极活性材料和聚合物颗粒的复合材料。 通过提高复合负极活性物质的导电性,可以获得具有大容量,高初始效率,高速率能力和改善循环寿命性能的锂电池。 阳极包括复合阳极活性材料,锂电池包括阳极。

    Anode active material and lithium battery using the same
    53.
    发明授权
    Anode active material and lithium battery using the same 有权
    阳极活性物质和锂电池使用相同

    公开(公告)号:US08283070B2

    公开(公告)日:2012-10-09

    申请号:US11606658

    申请日:2006-11-29

    IPC分类号: H01M4/62 H01M4/13 H01M4/88

    摘要: An anode active material and a lithium battery employing the same are provided. In one embodiment of the anode active material, a —(CH2CH2O)— repeating unit is bonded to the surface of metal particles that contain metals that can be alloyed with lithium. The repeating unit prevents reactions between the metal particles and the electrolyte solution. Also, due to its elasticity, the repeating unit absorbs part of the volume expansion of the metal particles. The repeating unit also prevents the metal particles from condensing, thereby enhancing dispersion properties. Accordingly, the inventive anode active material has high capacity and excellent capacity retention during repeated charging and discharging, thereby providing a lithium battery with a long cycle life.

    摘要翻译: 提供了一种负极活性材料和使用其的锂电池。 在阳极活性材料的一个实施方案中, - (CH 2 CH 2 O) - 重复单元被结合到含有可与锂合金化的金属的金属颗粒的表面上。 重复单元防止金属颗粒和电解质溶液之间的反应。 此外,由于其弹性,重复单元吸收金属颗粒的体积膨胀的一部分。 重复单元还防止金属颗粒冷凝,从而增强分散性能。 因此,本发明的阳极活性物质在反复充放电期间具有高容量和优异的容量保持性,从而提供了具有长循环寿命的锂电池。

    POROUS ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY EMPLOYING THE SAME
    54.
    发明申请
    POROUS ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY EMPLOYING THE SAME 有权
    多孔阳极活性材料,其制备方法以及使用其的阳极和锂电池

    公开(公告)号:US20120013051A1

    公开(公告)日:2012-01-19

    申请号:US13243039

    申请日:2011-09-23

    IPC分类号: C04B35/624 C04B35/64

    摘要: Provided are a porous anode active material, a method of preparing the same, and an anode and a lithium battery employing the same. The porous anode active material includes fine particles of metallic substance capable of forming a lithium alloy; a crystalline carboneous substance; and a porous carboneous material coating and attaching to the fine particles of metallic substance and the crystalline carboneous substance, the porous anode active material having pores exhibiting a bimodal size distribution with two pore diameter peaks as measured by a Barrett-Joyner-Halenda (BJH) pore size distribution from a nitrogen adsorption. The porous anode active material has the pores having a bimodal size distribution, and thus may efficiently remove a stress occurring due to a difference of expansion between a carboneous material and a metallic active material during charging and discharging. Further, the anode electrode and the lithium battery comprising the anode active material have excellent charge/discharge characteristics.

    摘要翻译: 提供一种多孔阳极活性材料,其制备方法,以及使用其的阳极和锂电池。 多孔负极活性物质包括能够形成锂合金的金属物质微粒; 结晶碳物质; 和多孔碳质材料涂覆并附着到金属物质和结晶碳质物质的细颗粒上,多孔负极活性物质具有双孔尺寸分布,具有两孔径峰,由Barrett-Joyner-Halenda(BJH)测量, 孔径分布从氮吸附。 多孔负极活性物质具有双峰尺寸分布的孔,因此可以有效地消除由于填充和排出期间碳质材料和金属活性物质之间的膨胀差而产生的应力。 此外,阳极电极和包含阳极活性材料的锂电池具有优异的充电/放电特性。

    COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL
    56.
    发明申请
    COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL 有权
    复合阳极活性材料,其制备方法,以及包含材料的阳极和锂电池

    公开(公告)号:US20080199779A1

    公开(公告)日:2008-08-21

    申请号:US12022978

    申请日:2008-01-30

    IPC分类号: H01M4/40 H01B1/02

    摘要: A composite anode active material including a transition metal; an intermetallic compound which includes the transition metal as one component and is capable of alloy formation with lithium; and carbon, where both the transition metal and the intermetallic compound have crystallinity, and the transition metal exists in a phase structurally separated from the intermetallic compound capable of alloy formation with lithium, where a content of the transition metal elements as both a metal and a component of the intermetallic compound may be less than 45 wt % based on the total weight of the transition metal and the intermetallic compound capable of alloy formation with lithium. The composite anode active material is a composite anode active material having a new structure, and includes a crystalline intermetallic compound, a crystalline transition metal, and carbon. In addition, an anode and lithium battery prepared using the composite anode active material have excellent charge-discharge characteristics.

    摘要翻译: 包含过渡金属的复合阳极活性材料; 金属间化合物,其包含作为一种组分的过渡金属并且能够与锂形成合金; 和碳,其中过渡金属和金属间化合物都具有结晶性,并且过渡金属存在于与能够与锂形成合金的金属间化合物结构分离的相中,其中过渡金属元素作为金属和 基于过渡金属和能够与锂形成合金的金属间化合物的总重量,金属间化合物的组分可以小于45重量%。 复合负极活性物质是具有新结构的复合负极活性物质,其包含结晶金属间化合物,结晶过渡金属和碳。 此外,使用复合负极活性物质制备的阳极和锂电池具有优异的充放电特性。

    COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL
    57.
    发明申请
    COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL 失效
    复合阳极活性材料,其制备方法,以及包含材料的阳极和锂电池

    公开(公告)号:US20080182173A1

    公开(公告)日:2008-07-31

    申请号:US11966607

    申请日:2007-12-28

    IPC分类号: H01M4/38 H01M4/46

    摘要: A composite anode active material includes a metal that may be alloyed with lithium, an intermetallic compound incapable of alloying with lithium, and a carbonaceous material, wherein the intermetallic compound exists in a phase structurally separated from the metal capable of alloying with lithium. Since the composite active material contains an intermetallic compound that does not form any alloy phase with lithium nor the metal capable of alloying with lithium but rather exists in a structurally separated phase, the composite active material exhibits excellent coulombic efficiency. Further, anode electrodes and lithium batteries including the composite anode active material exhibit improved charge and discharge characteristics.

    摘要翻译: 复合负极活性材料包括可以与锂合金化的金属,不能与锂合金化的金属间化合物和碳质材料,其中金属间化合物存在于与能够与锂合金化的金属结构分离的相中。 由于复合活性材料含有不与锂形成任何合金相的金属间化合物,也不能与锂合金化,而是结构分离相存在,所以复合活性物质具有优良的库仑效率。 此外,包括复合负极活性物质的阳极电极和锂电池具有改善的充放电特性。

    Organic electrolytic solution and lithium battery using the same
    58.
    发明申请
    Organic electrolytic solution and lithium battery using the same 有权
    有机电解液和锂电池使用相同

    公开(公告)号:US20070275306A1

    公开(公告)日:2007-11-29

    申请号:US11653658

    申请日:2007-01-12

    IPC分类号: H01M10/40

    摘要: Organic electrolytic solutions and lithium batteries using the organic electrolytic solutions are provided. One organic electrolytic solution includes a lithium salt, a mixed organic solvent consisting of a high-dielectric constant solvent and a low-boiling point solvent, and a compound represented by Formula 1 or 2 as an additive. The organic electrolytic solution and the lithium battery using the organic electrolytic solution may inhibit the reductive cleavage reaction of a polar solvent, thereby increasing capacity retention of the battery, and improving charge-discharge efficiency and battery lifetime.

    摘要翻译: 提供有机电解液和使用有机电解液的锂电池。 一种有机电解液包括锂盐,由高介电常数溶剂和低沸点溶剂组成的混合有机溶剂,以及由式1或2表示的化合物作为添加剂。 有机电解液和使用有机电解液的锂电池可以抑制极性溶剂的还原性裂解反应,从而增加电池的容量保持性,并且提高充放电效率和电池寿命。

    Anode active material, method of preparing the same, and anode and lithium battery employing the same
    60.
    发明申请
    Anode active material, method of preparing the same, and anode and lithium battery employing the same 有权
    阳极活性材料及其制备方法,以及使用其的阳极和锂电池

    公开(公告)号:US20060216606A1

    公开(公告)日:2006-09-28

    申请号:US11341997

    申请日:2006-01-27

    摘要: An anode active material including a metal core and a coating layer formed on a surface of the metal core is provided. The coating layer includes a conductive metal material. The coating layer covering the metal core is carbon-based and includes a conductive metal material. The anode active material has good electron conductivity and elasticity, thereby enhancing charge/discharge capacity and reducing the stress caused by expansion of the carbon-based coating layer and the metal core during charge/discharge cycles. Direct contact between the metal core and the electrolyte solution is remarkably reduced. In addition, anodes and lithium batteries including the anode active material exhibit excellent charge/discharge characteristics, such as discharge capacity and initial charge/discharge efficiency.

    摘要翻译: 提供了一种阳极活性材料,其包括金属芯和形成在金属芯的表面上的涂层。 涂层包括导电金属材料。 覆盖金属芯的涂层是碳基的,并且包括导电金属材料。 阳极活性材料具有良好的电子传导性和弹性,从而提高充电/放电容量,并减少充电/放电循环期间碳基涂层和金属芯膨胀所引起的应力。 金属芯和电解质溶液之间的直接接触显着降低。 此外,包括阳极活性材料的阳极和锂电池具有优异的充放电特性,例如放电容量和初始充电/放电效率。