LITHIUM-SULFUR SECONDARY BATTERY
    92.
    发明申请
    LITHIUM-SULFUR SECONDARY BATTERY 审中-公开
    锂硫酸二次电池

    公开(公告)号:US20160285135A1

    公开(公告)日:2016-09-29

    申请号:US15032830

    申请日:2014-10-15

    申请人: ULVAC, INC.

    摘要: Provided is a lithium-sulfur secondary battery capable of suppressing diffusion of a polysulfide eluted into an electrolyte, into a negative electrode and capable of suppressing lowering of a charge-discharge efficiency. In a lithium-sulfur secondary battery (B) of the invention, having a positive electrode (P) including a positive electrode active material containing sulfur, a negative electrode (N) including a negative electrode active material containing lithium, and a separator (5) which is disposed between the positive electrode and the negative electrode and which allows a lithium ion of an electrolyte (L) to pass therethrough, a cation-exchange membrane (CE) is formed on one of a positive electrode-side surface of the separator and a negative electrode-side surface thereof.

    摘要翻译: 本发明提供能够抑制溶解在电解质中的多硫化物扩散至负极并能够抑制充放电效率降低的锂硫二次电池。 在本发明的锂硫二次电池(B)中,具有含有硫的正极活性物质的正极(P),含有锂的负极活性物质的负极(N)和隔板(5) ),其设置在正极和负极之间,并且允许电解质(L)的锂离子通过,阳离子交换膜(CE)形成在隔膜的正极侧表面之一 及负极侧面。

    NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    96.
    发明申请
    NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非电解电解质二次电池和非电解电解质二次电池负极

    公开(公告)号:US20160056475A1

    公开(公告)日:2016-02-25

    申请号:US14779881

    申请日:2014-03-19

    摘要: There are provided a negative electrode for a nonaqueous electrolyte secondary battery having excellent initial efficiency and good moldability of pillar portions included in a negative electrode mixture layer, and a nonaqueous electrolyte secondary battery. A negative electrode (20) for a nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a negative electrode current collector (21) and a negative electrode mixture layer (22) formed on the negative electrode current collector (21) and containing a binder and a negative electrode active material particle that forms an alloy with lithium. The negative electrode mixture layer (22) includes a base portion (22a) near the negative electrode current collector (21) and pillar portions (22b) formed on the base portion (21a). The binder contains a polyimide resin. The polyimide resin has an average molecular weight of 60000 or more.

    摘要翻译: 提供了一种非水电解质二次电池用负极,其具有优异的初期效率和良好的负极混合层中所含的柱状部分的成形性,以及非水电解质二次电池。 根据本发明的一个方面的非水电解质二次电池用负极(20)包括在负极集电体(21)上形成的负极集电体(21)和负极合剂层(22),并含有 与锂形成合金的粘合剂和负极活性物质粒子。 所述负极合剂层(22)包括在所述负极集电体(21)附近的基部(22a)和形成在所述基部(21a)上的柱部(22b)。 粘合剂含有聚酰亚胺树脂。 聚酰亚胺树脂的平均分子量为60000以上。

    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
    100.
    发明申请
    SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF 有权
    二次电池及其制造方法

    公开(公告)号:US20150111090A1

    公开(公告)日:2015-04-23

    申请号:US14183311

    申请日:2014-02-18

    IPC分类号: H01M4/78 B23K26/30

    摘要: A secondary battery includes an electrode assembly having a relatively large capacity due to reducing a width of an uncoated portion and increasing a width of a coated portion by improving welding strength through a combination of ultrasonic welding and laser welding, and a manufacturing method thereof. The manufacturing method of the secondary battery includes preparing at least one electrode assembly including an uncoated portion, provisionally welding the uncoated portion by ultrasonic welding, coupling a current collector having an elastic property to the provisionally welded uncoated portion, and welding the uncoated portion and the current collector by laser welding.

    摘要翻译: 二次电池包括由于通过超声波焊接和激光焊接的组合改善焊接强度而减小未涂覆部分的宽度并增加涂覆部分的宽度而具有较大容量的电极组件及其制造方法。 二次电池的制造方法包括制备至少一个包括未涂覆部分的电极组件,通过超声波焊接临时焊接未涂覆部分,将具有弹性的集电器耦合到临时焊接的未涂覆部分,以及焊接未涂覆部分和 集电极通过激光焊接。