CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY
    1.
    发明申请
    CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY 审中-公开
    用于锂离子二次电池的碳材料,用于锂离子二次电池和锂离子二次电池的负极电极材料

    公开(公告)号:US20140227522A1

    公开(公告)日:2014-08-14

    申请号:US14343163

    申请日:2011-09-09

    IPC分类号: H01M4/36 H01M4/583

    摘要: A carbon material for a lithium ion secondary battery according to the present invention is a carbon material for a lithium ion secondary battery. The carbon material for the lithium ion secondary battery contains a graphite as a major component of the carbon material and a hard carbon. When an amount of the graphite contained in the carbon material is defined as “A” [wt %] and an amount of the hard carbon contained in the carbon material is defined as “B” [wt %], “A” and “B” satisfy a relationship of 1.2≦A/B≦19 and the amount of the graphite contained in the carbon material is in the range of 55 to 95 wt %. This makes it possible to provide the carbon material for the lithium ion secondary battery, the negative electrode material for the lithium ion secondary battery and the lithium ion secondary battery, which can provide high charge-discharge capacity and superior charge-discharge efficiency in good balance. Further, the amount of the hard carbon contained in the carbon material is preferably in the range of 5 to 45 wt %.

    摘要翻译: 本发明的锂离子二次电池用碳材料是锂离子二次电池用碳材料。 用于锂离子二次电池的碳材料包含作为碳材料的主要成分的石墨和硬碳。 当碳材料中所含的石墨量定义为“A”[wt%],碳材料中所含的硬碳量定义为“B”[wt%]时,“A”和“B “满足1.2≦̸ A / B≦̸ 19的关系,并且碳材料中所含的石墨的量在55至95重量%的范围内。 由此,能够提供锂离子二次电池用碳材料,锂离子二次电池用负极材料和锂离子二次电池,能够以良好的平衡提供高的充放电能力和优异的充放电效率 。 此外,碳材料中所含的硬碳的量优选为5〜45重量%。

    CARBON MATERIAL FOR LITHIUM ION SECONDARY CELL, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY CELL AND LITHIUM ION SECONDARY CELL
    2.
    发明申请
    CARBON MATERIAL FOR LITHIUM ION SECONDARY CELL, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY CELL AND LITHIUM ION SECONDARY CELL 有权
    用于锂离子二次电池的碳材料,用于锂离子二次电池和锂离子二次电池的负极电极材料

    公开(公告)号:US20120208089A1

    公开(公告)日:2012-08-16

    申请号:US13502401

    申请日:2010-10-19

    摘要: Disclosed is a carbon material for lithium ion secondary cell having a positron lifetime of 370 picoseconds or longer, and 480 picoseconds or shorter, when measured by positron annihilation spectroscopy under conditions (A) to (E) below: (A) positron radiation source: positrons generated from electron-positron pairs using an electron accelerator; (B) gamma ray detector: a BaF2 scintillator and a photoelectron multiplier; (C) measurement temperature and atmosphere: 25° C., in vacuum; (D) annihilation γ-ray counts: 3×106 or larger; and (E) positron beam energy: 10 keV.

    摘要翻译: 公开了在(A)〜(E)的条件下,通过正电子湮没光谱法测定的正电子寿命为370皮秒以上,480皮秒以下的锂离子二次电池用碳材料。(A)正电子辐射源: 使用电子加速器从电子 - 正电子对产生的正电子; (B)γ射线检测器:BaF2闪烁体和光电子倍增器; (C)测量温度和气氛:25℃,在真空中; (D)湮灭γ射线计数:3×106以上; 和(E)正电子束能量:10keV。

    ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY ANODE, LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY
    3.
    发明申请
    ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY ANODE, LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY 审中-公开
    用于锂二次电池的阳极碳材料,锂二次电池阳极,锂二次电池和用于制造用于锂二次电池的阳极碳材料的方法

    公开(公告)号:US20110200874A1

    公开(公告)日:2011-08-18

    申请号:US13121620

    申请日:2009-09-14

    IPC分类号: H01M4/60 H01M4/88 B82Y30/00

    摘要: The invention provides an anodic carbon material for a lithium secondary battery and a lithium secondary battery anode having excellent charge/discharge cycle characteristics, and a lithium secondary battery using the same. More specifically, an anodic carbon material for a lithium secondary battery according to the present invention comprises: composite particles composed of silicon-containing particles containing an alloy, oxide, nitride, or carbide of silicon capable of occluding and releasing lithium ions and a resinous carbon material enclosing the silicon-containing particles; and a network structure formed from nanofibers and/or nanotubes that bond to surfaces of the composite particles and that enclose the composite particles, and wherein: the network structure contains silicon.

    摘要翻译: 本发明提供了一种用于锂二次电池的阳极碳材料和具有优异充电/放电循环特性的锂二次电池阳极以及使用其的锂二次电池。 更具体地说,根据本发明的用于锂二次电池的阳极碳材料包括:由含有能够吸留和释放锂离子的硅的合金,氧化物,氮化物或碳化物的含硅颗粒构成的复合颗粒和树脂碳 封闭含硅颗粒的材料; 以及由纳米纤维和/或纳米管形成的网络结构,其结合到复合颗粒的表面并且包围复合颗粒,并且其中:网络结构包含硅。

    ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, LITHIUM SECONDARY BATTERY ANODE, AND LITHIUM SECONDARY BATTERY
    6.
    发明申请
    ANODIC CARBON MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, LITHIUM SECONDARY BATTERY ANODE, AND LITHIUM SECONDARY BATTERY 审中-公开
    用于锂二次电池的阳极碳材料,其制造方法,锂二次电池阳极和锂二次电池

    公开(公告)号:US20110039157A1

    公开(公告)日:2011-02-17

    申请号:US12990219

    申请日:2009-04-23

    摘要: The invention aims to improve the charge/discharge cycle characteristics of an anodic carbon material for a lithium secondary battery. An anodic carbon material for a lithium secondary battery according to the present invention comprises: particles containing carbon, or a metal or metalloid, or an alloy, oxide, nitride, or carbide thereof, the particle capable of absorbing and releasing lithium ions; a resinous carbon material enclosing the particles; and a network structure formed from carbon nanofibers and/or carbon nanotubes that bond to the surfaces of the particles and that enclose the particles.

    摘要翻译: 本发明旨在提高锂二次电池的阳极碳材料的充放电循环特性。 根据本发明的用于锂二次电池的阳极碳材料包括:含有碳或金属或准金属或其合金,氧化物,氮化物或碳化物的颗粒,能够吸收和释放锂离子的颗粒; 封闭颗粒的树脂碳材料; 以及由碳纳米纤维和/或碳纳米管形成的网状结构,其结合到颗粒的表面并且包围颗粒。