Nonaqueous electrolyte secondary battery

    公开(公告)号:US20060166102A1

    公开(公告)日:2006-07-27

    申请号:US10509756

    申请日:2003-06-23

    IPC分类号: H01M10/40

    摘要: A non-aqueous electrolyte secondary cell that has excellent high-temperature cycle characteristics and that is highly safe enough to prevent overcharge is provided. The non-aqueous electrolyte secondary cell has a positive electrode for reversibly intercalating-deintercalating lithium ions, a negative electrode for reversibly intercalating-deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent includes a cycloalkylbenzene derivative and an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring and not having a cycloalkyl group directly bonded to the benzene ring.

    Nonaqueous electrolyte secondary battery
    3.
    发明授权
    Nonaqueous electrolyte secondary battery 有权
    非水电解质二次电池

    公开(公告)号:US07604901B2

    公开(公告)日:2009-10-20

    申请号:US10509756

    申请日:2003-06-23

    IPC分类号: H01M1/40

    摘要: A non-aqueous electrolyte secondary cell that has excellent high-temperature cycle characteristics and that is highly safe enough to prevent overcharge is provided. The non-aqueous electrolyte secondary cell has a positive electrode for reversibly intercalating-deintercalating lithium ions, a negative electrode for reversibly intercalating-deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent includes a cycloalkylbenzene derivative and an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring and not having a cycloalkyl group directly bonded to the benzene ring.

    摘要翻译: 提供具有优异的高温循环特性并且足够高以防止过充电的非水电解质二次电池。 非水电解质二次电池具有用于可逆地嵌入锂离子的正极,用于可逆地插入 - 脱嵌锂离子的负极和具有非水溶剂和电解质盐的非水电解质。 非水溶剂包括环烷基苯衍生物和具有与苯环直接键合并且不具有直接键合到苯环上的环烷基的季碳的烷基苯衍生物。

    Lithium secondary cell
    5.
    发明授权
    Lithium secondary cell 失效
    锂二次电池

    公开(公告)号:US06521374B1

    公开(公告)日:2003-02-18

    申请号:US09387833

    申请日:1999-09-01

    IPC分类号: H01M202

    摘要: For use in lithium secondary cells, a positive electrode terminal 51 and a negative electrode terminal 81 are given an enhanced mechanical strength to improve the reliability of electrical connection between the cell and an external circuit, while the formation of oxide film on these terminals is inhibited to suppress the discharge voltage drop of the cell. To give these advantages to the lithium secondary cell embodying the invention, the positive electrode terminal 51 is formed from an aluminum alloy containing magnesium and silicon in a combined amount of at least 1.0 wt. % as additive elements, and the negative electrode terminal 81 is formed by plating a substrate of oxygen-free copper with nickel.

    摘要翻译: 为了在锂二次电池中使用,正极端子51和负极端子81被赋予增强的机械强度,以提高电池和外部电路之间的电连接的可靠性,同时抑制这些端子上的氧化膜的形成 以抑制电池的放电电压降。 为了将本发明的锂二次电池赋予这些优点,正极端子51由含有镁和硅的铝合金形成,其量为至少1.0wt。 %作为添加元素,负极端子81通过用镍镀无氧铜基板而形成。

    Secondary cell
    6.
    发明授权
    Secondary cell 失效
    二次电池

    公开(公告)号:US06562508B1

    公开(公告)日:2003-05-13

    申请号:US09385454

    申请日:1999-08-30

    IPC分类号: H01M212

    摘要: A secondary cell comprises a gastight can 1 having a cylinder 11 and a lid 12 fixed to an opening portion of the cylinder, and a secondary cell element accommodated in the can 1. The lid 12 is fixedly provided with a gas vent closure 4 in the form of a disk and having a diaphragm 42 openable upon the internal pressure of the can 1 exceeding a predetermined value. The gas vent closure 4 has an outer peripheral portion welded to an opening edge defining a through bore 14 formed in the lid 12. The lid 12 is formed in a front surface thereof with a circumferential groove 5 surrounding the welded portion of the gas vent closure 4, and a diminished portion 51 is provided between the groove 5 and the welded portion for reducing the sectional area of a heat flow path for the heat of welding to pass therethrough. The lid 12 thus constructed makes it possible to weld the vent closure 4 to the lid 12 free of defects such as pinholes or cracks.

    摘要翻译: 二次电池包括具有气缸11和固定到气缸的开口部分的盖12的气密罐1和容纳在罐1中的二次电池元件。盖12固定地设置有气体排出盖4 盘的形式,具有在罐1的内部压力超过预定值时可开启的隔膜42。 排气口4具有焊接到限定形成在盖12中的通孔14的开口边缘的外周部分。盖12在其前表面上形成有周围槽5,周向槽5包围气体通气口的焊接部分 如图4所示,并且在槽5和焊接部分之间设置有减小部分51,用于减小焊接热通过的热流路的截面面积。 如此构造的盖12使得能够将通气口4焊接到盖12,而没有诸如针孔或裂缝的缺陷。

    Nonaqueous secondary battery
    7.
    发明授权
    Nonaqueous secondary battery 失效
    非水二次电池

    公开(公告)号:US06551743B1

    公开(公告)日:2003-04-22

    申请号:US09534241

    申请日:2000-03-23

    IPC分类号: H01M450

    摘要: In the nonaqueous secondary battery of this invention, a positive electrode includes, as an active material, a composite oxide represented by a composition formula, LixMn2−y−zNiyMzOq, wherein M is at least one element selected from the group consisting of B, Mg, Al, Ti, V, Fe, Co, Cu, Zn, Ga, Y, Zr, Nb, Mo and In; 1.20≦x≦1.80; y≧0.10; z≧0; y+z≦1.90; and 3.70≦q≦4.30, in a discharge state during fabrication of the nonaqueous secondary battery. As a result, the nonaqueous secondary battery can exhibit good charge-discharge cycle performance and can be fabricated at low cost.

    摘要翻译: 在本发明的非水二次电池中,作为活性物质,正极包含由组成式LixMn2-y-zNiyMzOq表示的复合氧化物,其中M为选自B,Mg中的至少一种元素 ,Al,Ti,V,Fe,Co,Cu,Zn,Ga,Y,Zr,Nb,Mo和In; 1.20 <= x <= 1.80; y> = 0.10; z> = 0; y + z <= 1.90; 和3.70 <= q <= 4.30,在非水系二次电池的制造时处于放电状态。 结果,非水二次电池可以表现出良好的充放电循环性能,并且可以以低成本制造。