Carbon materials for negative electrode of secondary battery and manufacturing process
    1.
    发明授权
    Carbon materials for negative electrode of secondary battery and manufacturing process 有权
    二次电池负极碳材料及其制造工艺

    公开(公告)号:US06316146B1

    公开(公告)日:2001-11-13

    申请号:US09227807

    申请日:1999-01-11

    IPC分类号: H01M458

    摘要: A carbon material for negative electrode of a secondary battery, in particular lithium-ion secondary battery, is prepared by pyrolysis in an inert gas atmosphere or in a vacuum of a composite resin obtained by dissolving pitch in a pitch-soluble resin such as a nobolac phenol resin as it is, or a resin solidified by curing treatment in a state in which the above composite resin is dispersed in a resin solidified by curing treatment or in an uncured resin having a phenol hydroxyl radical such as resol type phenol resin, followed by pulverization in an inert gas, and further heat treatment in an inert gas atmosphere or in a vacuum. Also, a negative electrode material with which irreversible capacity is small, initial discharge capacity is large, and capacity decrease due to cycles is small can be provided by pyrolyzing in an inert gas atmosphere or in a vacuum powder of a resin such as a resol type phenol resin the primary chain of which containing an aromatic compound, or pyrolyzing in an inert gas atmosphere or in a vacuum in a first step, followed by heat treatment in a vacuum in a second step. By employing these negative electrode materials, it is possible to achieve a higher capacity in lithium-ion secondary batteries.

    摘要翻译: 二次电池用负极碳材料,特别是锂离子二次电池,是通过在惰性气体气氛中或在通过将沥青溶解在树脂中的沥青溶解沥青而得到的复合树脂的真空中进行热解而制备的 或者在将上述复合树脂分散在通过固化处理固化的树脂中的固化处理固化的树脂中,或者在具有酚羟基的未固化树脂如甲阶酚醛树脂型酚醛树脂中固化的树脂,其次是 在惰性气体中粉碎,并在惰性气体气氛或真空中进一步热处理。 此外,可以通过在惰性气体气氛中或在例如甲阶型树脂的真空粉末中热解而提供不可逆容量小的初始放电容量大,循环容量降低小的负极材料 酚醛树脂,其主链含有芳族化合物,或在惰性气体气氛中或在第一步骤的真空中热解,然后在第二步骤中在真空中进行热处理。 通过使用这些负极材料,可以实现锂离子二次电池的高容量化。

    Nonaqueous secondary battery, constituent elements of battery, and materials thereof
    2.
    发明申请
    Nonaqueous secondary battery, constituent elements of battery, and materials thereof 审中-公开
    非水二次电池,电池的构成要素及其材料

    公开(公告)号:US20060078799A1

    公开(公告)日:2006-04-13

    申请号:US11281088

    申请日:2005-11-17

    IPC分类号: C01B31/04 H01M4/66

    摘要: To realize constituent elements for realizing a nonaqueous secondary battery having high energy density and high repeating stability, and a nonaqueous secondary battery using the same. To present also a lithium ion secondary battery of light weight and high energy density to be used in various electronic appliances and power source of electric vehicle or the like. By using vanadium oxide expressed as M2+xV4O11, where x is 0 or more to 1 or less, and M is a monovalent metal ion such as Cu and Li, as positive electrode, a nonaqueous secondary battery having high energy density and high repeating stability is obtained. Moreover, by using the carbon obtained by heating a cured resin by adding an aromatic compound of 2 to 10 rings to a high polymer before curing, as negative electrode, a nonaqueous secondary battery of high energy density is obtained. By composing an electrochemical element by using a gel or solid ion conductor having an iron containing an organic cationic structure including quaternary nitrogen or its derivative and different cations at least as coexistent ions, a nonaqueous secondary battery of high energy density is obtained. As the current collector of the battery, by using a graphite sheet obtained by baking a high polymer film, a lithium ion secondary battery of light weight, excellent cycle characteristics and high energy density is presented.

    摘要翻译: 实现用于实现高能量密度和高重复稳定性的非水二次电池的构成要素,以及使用该非水系二次电池的非水二次电池。 还提出了用于电动车辆等的各种电子设备和动力源中的重量轻,能量密度高的锂离子二次电池。 通过使用表示为M 2 + x V 4 O 11 N的氧化钒,其中x为0以上至1以下,M为 可以得到Cu,Li等单价金属离子作为正极,能量密度高,重复稳定性高的非水系二次电池。 此外,通过使用通过在固化前将高分子量的2〜10个环的芳香族化合物加成固化树脂而得到的碳作为负极,得到高能量密度的非水系二次电池。 通过使用具有包含季氮或其衍生物的有机阳离子结构的铁的凝胶或固体离子导体和至少具有共存离子的不同阳离子组成电化学元件,获得了高能量密度的非水二次电池。 作为电池的集电体,通过使用通过烘焙高分子膜得到的石墨片,提出了重量轻,循环特性优异,能量密度高的锂离子二次电池。

    Nonaqueous secondary battery, constituent elements of battery, and materials thereof
    3.
    发明授权
    Nonaqueous secondary battery, constituent elements of battery, and materials thereof 失效
    非水二次电池,电池的构成要素及其材料

    公开(公告)号:US06413486B2

    公开(公告)日:2002-07-02

    申请号:US09327070

    申请日:1999-06-07

    IPC分类号: C01B3102

    摘要: To realize constituent elements for realizing a nonaqueous secondary battery having high energy density and high repeating stability, and a nonaqueous secondary battery using the same. To present also a lithium ion secondary battery of light weight and high energy density to be used in various electronic appliances and power source of electric vehicle or the like. By using vanadium oxide expressed as M2+xV4O11, where x is 0 or more to 1 or less, and M is a monovalent metal ion such as Cu and Li, as positive electrode, a nonaqueous secondary battery having high energy density and high repeating stability is obtained. Moreover, by using the carbon obtained by heating a cured resin by adding an aromatic compound of 2 to 10 rings to a high polymer before curing, as negative electrode, a nonaqueous secondary battery of high energy density is obtained. By composing an electrochemical element by using a gel or solid ion conductor having an iron containing an organic cationic structure including quaternary nitrogen or its derivative and different cations at least as coexistent ions, a nonaqueous secondary battery of high energy density is obtained. As the current collector of the battery, by using a graphite sheet obtained by baking a high polymer film, a lithium ion secondary battery of light weight, excellent cycle characteristics and high energy density is presented.

    摘要翻译: 为了实现具有高能量密度和高重复稳定性的非水系二次电池的构成要素,以及使用该非水系二次电池的非水系二次电池。另外,还可以使用重量轻,能量密度高的锂离子二次电池,用于各种电子设备 电动车辆的动力源等。通过使用表示为M2 + xV4O11的氧化钒,其中x为0以上至1以下,M为Cu,Li等一价金属离子作为正极,作为非水系 获得具有高能量密度和高重复稳定性的二次电池。 此外,通过使用通过在固化前将高分子量的2〜10个环的芳香族化合物加成固化树脂而得到的碳作为负极,得到高能量密度的非水系二次电池。 通过使用具有包含季氮或其衍生物的有机阳离子结构的铁的凝胶或固体离子导体和至少具有共存离子的不同阳离子构成电化学元件,获得高能量密度的非水二次电池。作为电流 电池的集电体,通过使用通过烘焙高分子膜获得的石墨片,提供重量轻,优异的循环特性和高能量密度的锂离子二次电池。