Lithium-nickel-cobalt-manganese containing composite oxide
    10.
    发明授权
    Lithium-nickel-cobalt-manganese containing composite oxide 有权
    含锂镍钴锰复合氧化物

    公开(公告)号:US07785742B2

    公开(公告)日:2010-08-31

    申请号:US12081801

    申请日:2008-04-22

    摘要: Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.

    摘要翻译: 通过使镍 - 钴 - 锰盐的水溶液,碱金属氢氧化物的水溶液和铵离子给体合成,其中一次粒子凝结形成二次粒子的镍 - 钴 - 氢氧化锰的凝结颗粒合成 在特定条件下反应; 和由通式LipNixMn1-x-yCoyO2-qFq(其中0.98和nlE; p≦̸ 1.07,0.3和nlE; x和nlE; 0.5,0.1& nlE; y≦̸ 0.38和...的锂 - 镍 - 钴 - 锰复合氧化物 0≦̸ q≦̸ 0.05),其是具有宽的可用电压范围,充放电循环耐久性,高容量和高安全性的锂二次电池的正极活性材料,其通过干式混合镍 - 钴 - 锰复合氢氧化物通过使氧化剂用锂盐作用于凝固的颗粒而形成,并在含氧气氛中烧结该混合物。