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    Nonaqueous electrolyte secondary battery and manufacturing method thereof
    1.
    发明申请
    Nonaqueous electrolyte secondary battery and manufacturing method thereof 审中-公开
    非水电解质二次电池及其制造方法

    公开(公告)号：US20090181308A1

    公开(公告)日：2009-07-16

    申请号：US12318916

    申请日：2009-01-12

    申请人： Takanobu Chiga ,  Katsunori Yanagida

    发明人： Takanobu Chiga ,  Katsunori Yanagida

    IPC分类号： H01M4/58 ,  H01M10/04

    CPC分类号： H01M10/0568 ,  H01M4/364 ,  H01M4/366 ,  H01M4/38 ,  H01M4/525 ,  H01M10/052 ,  Y10T29/49108

    摘要： A nonaqueous electrolyte secondary battery is obtained which shows good cycle characteristics even when charged to a high voltage.The nonaqueous electrolyte secondary battery has a positive electrode containing a positive active material, a negative electrode containing a negative active material and a nonaqueous electrolyte, wherein a lithium-containing transition metal oxide having a layered structure is contained in the positive electrode as the positive active material, an additive which is reductively decomposed in the range of +3.0-1.3 V versus metallic lithium is contained in the nonaqueous electrolyte, and the battery after assembled is overdischarged until a potential of the positive electrode falls down to a reductive potential of the additive or below.

    摘要翻译： 得到即使充电到高电压也显示良好的循环特性的非水电解质二次电池。 非水电解质二次电池具有包含正极活性物质的正极，含有负极活性物质的负极和非水电解质，其中，在正极中含有层状结构的含锂过渡金属氧化物作为正极活性物质 材料中，在非水电解质中含有相对于金属锂在+ 3.0-1.3V范围内还原分解的添加剂，组装后的电池过放电直到正极的电位下降至添加剂的还原电位 或以下。

    Non-aqueous electrolyte secondary battery
    2.
    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：US07335446B2

    公开(公告)日：2008-02-26

    申请号：US11064112

    申请日：2005-02-23

    申请人： Takanobu Chiga ,  Katsunori Yanagida ,  Atsushi Yanai ,  Yoshinori Kida

    发明人： Takanobu Chiga ,  Katsunori Yanagida ,  Atsushi Yanai ,  Yoshinori Kida

    IPC分类号： H01M4/58

    CPC分类号： H01M10/0525 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/136 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825

    摘要： Cycle performance is improved without degrading initial efficiency of a non-aqueous electrolyte secondary battery that includes a positive electrode, a negative electrode, a non-aqueous electrolyte containing a solute and a solvent, the positive electrode including a positive electrode active material made of a lithium-containing transition metal oxide that contains lithium and cobalt and has a layered structure. The lithium-containing transition metal oxide is at least partially covered with a surface-treatment layer containing a phosphate compound represented by the chemical formula M1POk, where M1 is at least one element that can have a valency of 3 and k is an integer in a range of 2 to 4, and the lithium-containing transition metal oxide contains a group IVA element M2 and a group IIA element M3 of the periodic table.

    摘要翻译： 提高循环性能而不降低包含正极，负极，含有溶质的非水电解质和溶剂的非水电解质二次电池的初期效率，所述正极包含由 含有锂和钴的含锂过渡金属氧化物并具有层状结构。 所述含锂过渡金属氧化物至少部分被表面处理层覆盖，所述表面处理层含有由化学式M 1 PO 3表示的磷酸盐化合物，其中M 1 是至少一种可以具有3价的元素，k是2至4的整数，含锂过渡金属氧化物含有IVA族元素M 2， / SUP>和元素周期表的IIA族元素M 3。

    Non-aqueous electrolyte secondary battery
    4.
    发明申请
    Non-aqueous electrolyte secondary battery 有权
    非水电解质二次电池

    公开(公告)号：US20050196674A1

    公开(公告)日：2005-09-08

    申请号：US11064112

    申请日：2005-02-23

    申请人： Takanobu Chiga ,  Katsunori Yanagida ,  Atsushi Yanai ,  Yoshinori Kida

    发明人： Takanobu Chiga ,  Katsunori Yanagida ,  Atsushi Yanai ,  Yoshinori Kida

    IPC分类号： H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/525 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0566 ,  H01M4/48 ,  H01M4/58

    CPC分类号： H01M10/0525 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/136 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825

    摘要： Cycle performance is improved without degrading initial efficiency of a non-aqueous electrolyte secondary battery that includes a positive electrode, a negative electrode, a non-aqueous electrolyte containing a solute and a solvent, the positive electrode including a positive electrode active material made of a lithium-containing transition metal oxide that contains lithium and cobalt and has a layered structure. The lithium-containing transition metal oxide is at least partially covered with a surface-treatment layer containing a phosphate compound represented by the chemical formula M1POk, where M1 is at least one element that can have a valency of 3 and k is an integer in a range of 2 to 4, and the lithium-containing transition metal oxide contains a group IVA element M2 and a group IIA element M3 of the periodic table.

    摘要翻译： 提高循环性能而不降低包含正极，负极，含有溶质的非水电解质和溶剂的非水电解质二次电池的初期效率，所述正极包含由 含有锂和钴的含锂过渡金属氧化物并具有层状结构。 所述含锂过渡金属氧化物至少部分被表面处理层覆盖，所述表面处理层含有由化学式M 1 PO 3表示的磷酸盐化合物，其中M 1 是至少一种可以具有3价的元素，k是2至4的整数，含锂过渡金属氧化物含有IVA族元素M 2， / SUP>和元素周期表的IIA族元素M 3。

    NON-AQUEOUS ELECTROLYTE BATTERY
    5.
    发明申请
    NON-AQUEOUS ELECTROLYTE BATTERY 审中-公开
    非水电解电池

    公开(公告)号：US20100248023A1

    公开(公告)日：2010-09-30

    申请号：US12732912

    申请日：2010-03-26

    申请人： Sho Tsuruta ,  Motoharu Saito ,  Katsunori Yanagida ,  Masahisa Fujimoto

    发明人： Sho Tsuruta ,  Motoharu Saito ,  Katsunori Yanagida ,  Masahisa Fujimoto

    IPC分类号： H01M6/14

    CPC分类号： H01M4/131 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y10T29/49108

    摘要： A non-aqueous electrolyte battery has a working electrode 1 having a positive electrode active material, a counter electrode 2, and a non-aqueous electrolyte containing lithium. The positive electrode active material includes a lithium pre-doped transition metal oxide prepared by pre-doping lithium into a sodium-containing transition metal oxide having an initial charge-discharge efficiency of higher than 100% as determined by charging and discharging using a lithium metal negative electrode as a counter electrode, and the sodium-containing transition metal oxide is represented by the compositional formula NaaLibMO2±α, where 0.5≦a

    摘要翻译： 非水电解质电池具有具有正极活性物质的工作电极1，对电极2和含有锂的非水电解质。 正极活性物质包括锂预预掺杂的过渡金属氧化物，其通过将锂预掺杂到初始充电 - 放电效率高于100％的含钠过渡金属氧化物中，通过使用锂金属进行充电和放电测定 负极作为对电极，含钠过渡金属氧化物由组成式NaaLibMO2±α表示，其中0.5＆lt; 1lE; a <1.0,0

    Nonaqueous electrolyte secondary cell wit PTC current collector tabs
    10.
    发明授权
    Nonaqueous electrolyte secondary cell wit PTC current collector tabs 有权
    具有PTC集电器接头的非水电解质二次电池

    公开(公告)号：US06235426B1

    公开(公告)日：2001-05-22

    申请号：US09398209

    申请日：1999-09-17

    申请人： Atsushi Yanai ,  Kazunari Ohkita ,  Katsunori Yanagida ,  Takeshi Maeda ,  Atsuhiro Funahashi ,  Yoshito Chikano ,  Toshiyuki Nohma ,  Ikuo Yonezu ,  Koji Nishio

    发明人： Atsushi Yanai ,  Kazunari Ohkita ,  Katsunori Yanagida ,  Takeshi Maeda ,  Atsuhiro Funahashi ,  Yoshito Chikano ,  Toshiyuki Nohma ,  Ikuo Yonezu ,  Koji Nishio

    IPC分类号： H01M466

    CPC分类号： H01M10/4235 ,  H01M2/263 ,  H01M4/02 ,  H01M4/64 ,  H01M6/10 ,  H01M10/052 ,  H01M2200/106

    摘要： A nonaqueous electrolyte secondary cell having a rolled-up electrode unit housed in a cell can and comprising a positive electrode and a negative electrode each formed by coating a surface of a striplike current collector with an electrode material. According to a first embodiment, the current collector of at least one of the positive electrode and the negative electrode comprises a plurality of current collector pieces 42 arranged along one direction and a PTC element 5 interconnecting each pair of adjacent current collector pieces 42. Alternatively with a second embodiment, at least one of the positive electrode and the negative electrode comprises a PTC element held between opposed faces of an uncoated portion of the current collector thereof and a base end portion of a current collector tab. The PTC element serves to prevent continuous occurrence of a current in excess of a predetermined value and realizes a high energy density.

    摘要翻译： 具有容纳在电池中的卷绕电极单元的非水电解质二次电池可以包括通过用电极材料涂覆带状集电体的表面而形成的正极和负极。 根据第一实施例，正电极和负电极中的至少一个的集电器包括沿着一个方向布置的多个集电器片42和连接每对相邻集电器片42的PTC元件5。 在第二实施例中，正电极和负电极中的至少一个包括保持在其集电器的未涂覆部分的相对面和集电极片的基端部之间的PTC元件。 PTC元件用于防止超过预定值的电流的连续发生并且实现高能量密度。