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    Non-aqueous electrolyte secondary cell, and material for negative electrode used therefor
    5.
    发明授权
    Non-aqueous electrolyte secondary cell, and material for negative electrode used therefor 有权
    非水电解质二次电池及用于其的负极材料

    公开(公告)号：US06576366B1

    公开(公告)日：2003-06-10

    申请号：US09673753

    申请日：2000-12-06

    申请人： Takafumi Fujiwara ,  Harunari Shimamura ,  Takayuki Nakamoto ,  Yoshiaki Nitta

    发明人： Takafumi Fujiwara ,  Harunari Shimamura ,  Takayuki Nakamoto ,  Yoshiaki Nitta

    IPC分类号： H01M458

    CPC分类号： H01M4/46 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M10/052 ,  H01M10/0565

    摘要： In cycles of charging and discharging, an excellent capacity maintenance rate is obtained. The charging and discharging cycle characteristic of battery is enhanced. Further, an excellent initial discharging capacity is obtained. A negative electrode, a positive electrode, and a non-aqueous electrolyte are contained. The negative electrode includes an alloy of Si, a first element and a second element. The first element includes at least one element selected from the group consisting of the second group element except Mg in the periodic table, transition elements, twelfth group element, thirteenth group element except B, and fourteenth group element except Si. The second element includes at least one element of B and Mg.

    摘要翻译： 在充放电循环中，能够获得良好的容量维持率。 电池的充放电循环特性得到提高。 此外，获得了优异的初始放电容量。 包含负极，正极和非水电解质。 负极包括Si的合金，第一元素和第二元素。 第一元素包括选自周期表中除了Mg以外的第二组元素，过渡元素，第十二组元素，除了B以外的第十三组元素，以及Si以外的第十四组元素中的至少一种元素。 第二元素包括B和Mg的至少一个元素。

    Non-aqueous electrolyte secondary battery
    6.
    发明授权
    Non-aqueous electrolyte secondary battery 有权
    非水电解质二次电池

    公开(公告)号：US06593030B2

    公开(公告)日：2003-07-15

    申请号：US09798846

    申请日：2001-03-01

    申请人： Yasuhiko Bito ,  Toshitada Sato ,  Yoshiaki Nitta

    发明人： Yasuhiko Bito ,  Toshitada Sato ,  Yoshiaki Nitta

    IPC分类号： H01M438

    CPC分类号： H01M4/136 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M10/052 ,  H01M2004/027

    摘要： The present invention provides a rechargeable negative electrode for a non-aqueous electrolyte secondary battery comprising an alloy material which absorbs lithium during charge and desorbs lithium during discharge, and having a long cycle life. The negative electrode includes an alloy having a hexagonal closest packing structure and a Ni2In type structure composed of at least two elements.

    摘要翻译： 本发明提供一种用于非水电解质二次电池的可再充电负极，其包括在充电期间吸收锂并在放电期间解吸锂并且具有长循环寿命的合金材料。 负极包括具有六边形最接近填充结构的合金和由至少两个元素组成的Ni2In型结构。

    Non-aqueous electrolyte secondary cell
    7.
    发明授权
    Non-aqueous electrolyte secondary cell 有权
    非水电解质二次电池

    公开(公告)号：US06761998B2

    公开(公告)日：2004-07-13

    申请号：US10088398

    申请日：2002-03-18

    申请人： Toshitada Sato ,  Yasuhiko Bito ,  Kazuhiro Okamura ,  Yoshiaki Nitta

    发明人： Toshitada Sato ,  Yasuhiko Bito ,  Kazuhiro Okamura ,  Yoshiaki Nitta

    IPC分类号： H01M458

    CPC分类号： H01M4/13 ,  B22F1/025 ,  B22F2998/00 ,  B22F2999/00 ,  C22C1/04 ,  H01M4/02 ,  H01M4/38 ,  H01M4/405 ,  H01M10/052 ,  B22F2201/10 ,  B22F2201/02 ,  B22F2201/03 ,  B22F9/082 ,  B22F2201/00

    摘要： A non-aqueous electrolyte secondary battery containing an alloy particle capable of absorbing and desorbing lithium in the negative electrode has a short cycle life and is insufficient in high-rate discharge characteristics, since the alloy particle is pulverized during charge/discharge cycles. In order to solve this problem, a negative electrode is employed, which comprises an alloy particle containing: at least two selected from the group consisting of metal elements and semimetal elements; oxygen; and nitrogen. It is preferred that the alloy particle have a phase A capable of electrochemically absorbing and desorbing lithium ion and a phase B having lithium ion conductivity or lithium ion permeability and that the phase B contain larger amounts of oxygen and nitrogen than the phase A.

    摘要翻译： 含有能够在负极中吸收和解吸锂的合金粒子的非水电解质二次电池由于在充放电循环中粉碎合金粒子，所以循环寿命短，高倍率放电特性不足。 为了解决这个问题，使用负极，其包括含有选自金属元素和半金属元素中的至少两种的合金粒子; 氧; 和氮气。 合金粒子优选具有电化学吸收和解吸锂离子的相A和具有锂离子传导性或锂离子渗透性的相B，并且相B含有比A相更大的氧和氮。

    Non-aqueous electrolyte secondary battery comprising composite particles
    8.
    发明授权
    Non-aqueous electrolyte secondary battery comprising composite particles 失效
    包含复合颗粒的非水电解质二次电池

    公开(公告)号：US06824920B1

    公开(公告)日：2004-11-30

    申请号：US09601421

    申请日：2000-09-28

    申请人： Kazuya Iwamoto ,  Hizuru Koshina ,  Harunari Shimamura ,  Yoshiaki Nitta

    发明人： Kazuya Iwamoto ,  Hizuru Koshina ,  Harunari Shimamura ,  Yoshiaki Nitta

    IPC分类号： H01M438

    CPC分类号： H01M4/38 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M4/42 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

    摘要： The present invention relates to a non-aqueous electrolyte secondary battery. The negative electrode of the present invention is characterized by its composite particles constructed in such a manner that at least part of the surrounding surface of nuclear particles containing at least one of tin, silicon and zinc as a constituent element, is coated with a solid solution or an intermetallic compound, which are composed of the element contained in the nuclear particles, and at least one other element except the elements contained in the nuclear particles selected from a group comprising group 2 elements, transition elements, group 12 elements, group 13 elements and group 14 elements except carbon of the Periodic Table. The electrolyte uses anion lithium salts of organic acid dissolved in organic solvent with high oxidation resistant characteristics. By adopting the above construction, a battery which generates only a small amount of gas during a high temperature storing can be obtained. Furthermore, the batteries enjoy high energy density and a lower reduction rate of discharge capacity when used repeatedly as well as high charge/discharge properties.

    摘要翻译： 本发明涉及一种非水电解质二次电池。 本发明的负极的特征在于，其复合颗粒的构成是将含有锡，硅和锌中的至少一种作为构成元素的至少一部分核粒子的周围表面涂布固溶体 或由包含在核粒子中的元素组成的金属间化合物，以及除了选自包含第2族元素，过渡元素，第12族元素，第13族元素的核粒子中的元素以外的至少一种其它元素 和除了周期表碳以外的第14组元素。 电解质使用溶解于有机溶剂中的有机酸的阴离子锂盐，具有高抗氧化特性。 通过采用上述结构，可以获得在高温保存期间仅产生少量气体的电池。 此外，当重复使用电池以及高充电/放电性能时，电池具有高的能量密度和较低的放电容量的减小率。

    Non-aqueous electrolyte secondary battery comprising composite particles
    9.
    发明授权
    Non-aqueous electrolyte secondary battery comprising composite particles 有权
    包含复合颗粒的非水电解质二次电池

    公开(公告)号：US06605386B1

    公开(公告)日：2003-08-12

    申请号：US09601224

    申请日：2000-09-18

    申请人： Shinji Kasamatsu ,  Hiroshi Yoshizawa ,  Kazuhiro Okamura ,  Hizuru Koshina ,  Harunari Shimamura ,  Yoshiaki Nitta

    发明人： Shinji Kasamatsu ,  Hiroshi Yoshizawa ,  Kazuhiro Okamura ,  Hizuru Koshina ,  Harunari Shimamura ,  Yoshiaki Nitta

    IPC分类号： H01M462

    CPC分类号： H01M4/38 ,  H01M4/04 ,  H01M4/13 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/58 ,  H01M4/5835 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/446 ,  H01M2010/4292

    摘要： A non-aqueous electrolyte secondary battery comprises a positive electrode and a negative electrode capable of intercalating and de-intercalating lithium, a non-aqueous electrolyte and separators or solid electrolytes. The negative electrode contains, as a main component, composite particles constructed in such a manner that at least part of the surface of nuclear particles comprising at least one of tin, silicon and zinc as a constituent element, is coated with a solid solution or an inter-metallic compound composed of the element included in the nuclear particles and another predetermined element which is not an element included in the nuclear particles. To improve the ability of the battery, the composite particles mentioned above can include at least one trace element selected from iron, lead and bismuth. The porosity of a mixture layer at the negative electrode is 10% or more and 50% or less. The amount of the non-aqueous electrolyte, the thickness of the separators or the like is restricted in a specific value. The foregoing construction suppresses occurrence of an internal short circuit between the positive electrode and the negative electrode caused by expansion of the negative electrode materials, thereby achieving a high capacity battery with a superior charge/discharge cycle properties, which is suitable for a high-speed charging.

    摘要翻译： 非水电解质二次电池包括能够插入和脱嵌锂的正极和负极，非水电解质和隔膜或固体电解质。 作为主要成分的负极以作为构成要素的锡，硅，锌中的至少一种的核粒子的至少一部分表面的固体溶液或 由包含在核粒子中的元素构成的金属间化合物和不包含在核粒子中的元素的另一规定元素。 为了提高电池的能力，上述复合颗粒可以包括至少一种选自铁，铅和铋的痕量元素。 负极上的混合层的孔隙率为10％以上且50％以下。 非水电解质的量，分离器的厚度等被限制在特定值。 上述结构抑制了由负极材料的膨胀引起的正极和负极之间的内部短路的发生，从而实现了具有优良的充放电循环特性的高容量电池，适用于高速 充电。

    Non-aqueous electrolyte secondary battery and its negative electrode
    10.
    发明授权
    Non-aqueous electrolyte secondary battery and its negative electrode 有权
    非水电解质二次电池及其负极

    公开(公告)号：US06548208B1

    公开(公告)日：2003-04-15

    申请号：US09701277

    申请日：2001-01-22

    申请人： Shinji Kasamatsu ,  Harunari Shimamura ,  Yoshiaki Nitta

    发明人： Shinji Kasamatsu ,  Harunari Shimamura ,  Yoshiaki Nitta

    IPC分类号： H01M1024

    CPC分类号： H01M10/052 ,  H01M4/02 ,  H01M4/04 ,  H01M4/0402 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/40 ,  H01M4/463 ,  H01M4/466 ,  H01M4/58 ,  H01M4/625 ,  H01M4/626 ,  H01M2004/027

    摘要： A high capacity negative electrode for a non-aqueous electrolyte secondary battery which has low declining rate in discharge capacity caused by charge/discharge cycles by improving the electronic conductivity on the surface of the particles of the negative electrode material. The negative electrode material is formed by coating part of or the entire surface of solid phase A comprising a nucleus particle with the solid phase B. The solid phase A contains silicon as a constituent element. The solid phase B is composed of a solid solution or intermetallic compounds composed of silicon and at least one another element selected from a group comprising of group 2 elements, transition elements, group 12 elements, group 13 elements and group 14 elements (exclusive of carbon and silicon) of the Periodic Table.

    摘要翻译： 一种用于非水电解质二次电池的高容量负极，其通过改善负极材料的颗粒的表面上的电子导电性而具有由充电/放电循环引起的放电容量的低下降率。 负极材料通过将包含核粒子的固相A的一部分或整个表面与固相B进行涂布而形成。固相A含有硅作为构成元素。 固相B由固体溶液或由硅构成的金属间化合物和选自由2族元素，过渡元素，12族元素，13族元素和14族元素组成的组中的至少一种元素组成 和硅）。