Non-aqueous electrolyte secondary battery
    71.
    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:US20060115730A1

    公开(公告)日:2006-06-01

    申请号:US11262927

    申请日:2005-11-01

    IPC分类号: H01M4/62 H01M4/52

    摘要: Disclosed is a non-aqueous electrolyte secondary battery having an electrode group in which a positive electrode and a negative electrode are spirally wound with a separator interposed therebetween. The positive electrode contains a positive electrode active material and a binder. The positive electrode active material contains a mixture of two different particulate substances having different average particle sizes. The two different particulate substances are lithium composite metal oxides containing nickel as an essential element. The binder includes fluorocarbon resin and rubber particles. The fluorocarbon resin contains at least a vinylidene fluoride unit. The amount of the rubber particles per 100 parts by weight of the fluorocarbon resin is 1 to 25 parts by weight.

    摘要翻译: 公开了一种具有电极组的非水电解质二次电池,其中正电极和负电极螺旋地缠绕有隔膜。 正极含有正极活性物质和粘合剂。 正极活性物质含有具有不同平均粒径的两种不同颗粒物质的混合物。 两种不同的颗粒物质是含有镍作为必需元素的锂复合金属氧化物。 粘合剂包括氟碳树脂和橡胶颗粒。 氟碳树脂含有至少一个偏二氟乙烯单元。 每100重量份氟碳树脂中的橡胶颗粒的量为1至25重量份。