会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明申请
    • Positive electrodes for lithium batteries and their methods of fabrication
    • 锂电池正极及其制造方法
    • US20050186474A1
    • 2005-08-25
    • US11059433
    • 2005-02-15
    • Zhanfeng JiangJunqing DongHulquan Liu
    • Zhanfeng JiangJunqing DongHulquan Liu
    • B05D1/36B05D5/12H01M4/02H01M4/131H01M4/1391H01M4/36H01M4/50H01M4/505H01M4/52H01M4/525H01M10/0525H01M10/36
    • H01M4/131H01M4/0404H01M4/1391H01M4/366H01M4/505H01M4/525H01M10/0525H01M2004/021H01M2004/028
    • The present invention discloses positive electrodes and their methods of fabrication. These electrodes are low in cost. Lithium rechargeable batteries that use these positive electrodes have excellent cycling properties at high temperature. The positive electrode of the embodiments of this invention comprises of a current collector coated by two layers of active materials for positive electrodes. The active material for the first layer of coating is one or more active materials selected from the following: spinel lithium manganese oxide, and spinel lithium manganese oxide derivatives. The active material for the second layer of coating is one or more active material selected from the following: lithium cobalt oxide, lithium cobalt oxide derivatives, lithium nickel oxide, and lithium nickel oxide derivatives. To fabricate these positive electrodes, a first layer of coating comprising of the active materials stated above is applied onto a current collector and then dried before a second layer of coating is applied onto the surface of the first layer of coating. The positive electrode is obtained after the current collector with the two layers of coating is dried a second time and then pressed to form a slice.
    • 本发明公开了正电极及其制造方法。 这些电极的成本低。 使用这些正极的锂可充电电池在高温下具有优异的循环性能。 本发明实施例的正极包括由两层正极活性材料涂覆的集电器。 用于第一层涂层的活性材料是选自以下的一种或多种活性材料:尖晶石锂锰氧化物和尖晶石锂锰氧化物衍生物。 用于第二层涂层的活性材料是选自以下的一种或多种活性材料:钴酸锂,钴酸锂衍生物,锂镍氧化物和锂镍氧化物衍生物。 为了制造这些正电极,将包含上述活性材料的第一层涂层施加到集电器上,然后在将第二层涂层施加到第一层涂层的表面之前进行干燥。 在集电体上获得正电极后,将两层涂层第二次干燥,然后压制形成切片。
    • 8. 发明授权
    • Positive electrodes for rechargeable batteries
    • 可充电电池正极
    • US07771875B2
    • 2010-08-10
    • US10918580
    • 2004-08-13
    • Chuanfu WangZhanfeng JiangJunqing Dong
    • Chuanfu WangZhanfeng JiangJunqing Dong
    • H01M4/58H01M4/32
    • H01M4/525H01M4/131H01M4/1391
    • Active materials for positive electrodes of rechargeable batteries and the methods of fabrication for the active materials as well as positive electrodes thereof are provided, where the active material comprises of a mixture of two components, A and B. A are compounds of lithium nickel cobalt metal oxide while B are oxides of lithium cobalt. In a preferred embodiment, a formula for the compounds of lithium nickel metal oxide, A, is LiaNi1-b-cCobMcO2 where 0.97≦a≦1.05, 0.01≦b≦0.30, 0≦c≦0.10, and M is one or more of the following: manganese, aluminum, titanium, chromium, magnesium, calcium, vanadium, iron, and zirconium. The weight ratio of A:B is between 20:80 and 80:20.
    • 提供了用于可再充电电池的正电极的活性材料以及活性材料及其正极的制造方法,其中活性材料包含两种组分A和B的混合物.A是锂镍钴金属的化合物 而B是锂钴的氧化物。 在优选的实施方案中,锂镍金属氧化物A的化合物的式为LiaNi1-b-cCobMcO2,其中0.97和n1E; a≦̸ 1.05,0.01和nlE; b≦̸ 0.30,0和n1E; c1n1; 0.10和M是一个或 更多的如下:锰,铝,钛,铬,镁,钙,钒,铁和锆。 A:B的重量比在20:80到80:20之间。