Polymer binder for electrochemical device comprising multiply stacked electrochemical cells
    1.
    发明授权
    Polymer binder for electrochemical device comprising multiply stacked electrochemical cells 有权
    用于包括多层叠电化学电池的电化学装置的聚合物粘合剂

    公开(公告)号:US07935442B2

    公开(公告)日:2011-05-03

    申请号:US11435538

    申请日:2006-05-17

    IPC分类号: H01M4/62

    摘要: Disclosed is an electrochemical device, which comprises: (A) a binder comprising polymer particles obtained from the polymerization of: (a) 20-70 parts by weight of a (meth)acrylic acid ester monomer; (b) 20-60 parts by weight of a vinyl monomer; and (c) 0.01-30 parts by weight of an unsaturated carboxylic acid monomer, based on 100 parts by weight of a binder polymer; and (B) electrochemical cells stacked multiply by using the binder, wherein the binder allows electrode active material particles in an electrode to be fixed and interconnected among themselves and between the electrode active material and a collector, and the electrode and a separator that is in contact with the electrode are bonded to each other by way of hot fusion. The binder is also disclosed. The binder has excellent adhesion and thermal bonding characteristics, and thus is useful for an electrochemical device comprising multiply stacked electrochemical cells, and can improve the overall quality of a battery.

    摘要翻译: 公开了一种电化学装置,其包括:(A)包含由以下聚合获得的聚合物颗粒的粘合剂:(a)20-70重量份的(甲基)丙烯酸酯单体; (b)20-60重量份的乙烯基单体; 和(c)基于100重量份的粘合剂聚合物,0.01-30重量份的不饱和羧酸单体; 和(B)通过使用粘合剂堆叠的电化学电池,其中粘合剂允许电极中的电极活性材料颗粒在它们之间以及电极活性材料和集电体之间固定和互连,并且电极和分离器 与电极的接触通过热熔接而彼此接合。 还公开了粘合剂。 粘合剂具有优异的粘合性和热粘合特性,因此可用于包括多层叠电化学电池的电化学装置,并且可以提高电池的整体质量。

    System of lithium ion battery containing material with high irreversible capacity
    4.
    发明授权
    System of lithium ion battery containing material with high irreversible capacity 有权
    锂离子电池系统含有高不可逆容量的材料

    公开(公告)号:US08846250B2

    公开(公告)日:2014-09-30

    申请号:US11409575

    申请日:2006-04-24

    摘要: Disclosed is a cathode active material comprising a lithium-free metal oxide and a material with high irreversible capacity. A novel lithium ion battery system using the cathode active material is also disclosed. The battery, comprising a cathode using a mixture of a Li-free metal oxide and a material with high irreversible capacity, and an anode comprising carbon instead of Li metal, shows excellent safety compared to a conventional battery using lithium metal as an anode. Additionally, the novel battery system has a higher charge/discharge capacity compared to a battery using a conventional cathode active material such as lithium cobalt oxide, lithium nickel oxide or lithium manganese oxide.

    摘要翻译: 公开了包含无锂金属氧化物和具有高不可逆容量的材料的阴极活性材料。 还公开了一种使用阴极活性材料的新型锂离子电池系统。 与使用锂金属作为阳极的常规电池相比,包含使用无Li金属氧化物和具有高不可逆容量的材料的混合物的阴极和包含碳代替Li金属的阳极的电池显示出优异的安全性。 此外,与使用常规的正极活性物质如锂钴氧化物,锂镍氧化物或锂锰氧化物的电池相比,新型电池系统具有更高的充电/放电容量。